Diamond Certified Company Spotlight Series: Contra Costa County (Part 2)

We’ve all felt the joy of choosing a good company in Contra Costa County and, unfortunately, the pain when we mistakenly choose a bad one. The problem is, every company claims to be good, yet despite these glowing claims some provide inconsistent quality while others are downright dishonest. We’ve solved this problem for you with Diamond Certified Resource. Only local companies independently rated Highest in Quality and Helpful Expertise earn Diamond Certified. Our rigorous <a href=http://www.diamondcertified.org/the-certification target=_self>rating and certification process</a> starts with the in-depth pass/fail rating of each company’s customer satisfaction, license and insurances. Most companies can’t pass our rating and earn Diamond Certified, and every Diamond Certified company must continue to deliver on its promises to you, the consumer. That’s why we conduct ongoing customer satisfaction research and credential-based ratings and monitor each company’s performance. Here’s the second part of our list featuring all the Diamond Certified companies that serve Contra Costa County. <a href=https://www.diamondcertified.org/report/kaljian-construction-inc target=_self>Kaljian Construction Inc.</a> Kaljian Construction Inc. provides handyman, home repair and remodeling services for homeowners in Northern Contra Costa County, covering everything from door, window and flooring installations to cabinet refacing and full interior remodels. Owner Robert Kaljian brings decades of hands-on construction experience and a methodical approach that prioritizes preparation, the right tools, and consistent processes over shortcuts. He asks detailed questions to clarify what homeowners really want so the finished result matches the vision, not just the work order. <a href=http://www.diamondcertified.org/report/kodiak-construction target=_self>Kodiak Construction</a> Kodiak Construction provides concrete installation and repair services throughout the Bay Area, handling patios, walkways and driveways along with retaining walls, foundation work and related site needs. The family-owned company has served East Bay, Napa County and Marin County clients since 1995, and it pairs decades of hands-on experience with a commitment to staying present on the job until completion. Decorative concrete options add another layer of customization, with a wide range of colors and patterns that can turn a basic hardscape into a finished outdoor feature. Because Kodiak brings concrete, carpentry and drainage knowledge together in-house, homeowners get better coordination and installation choices that support the surrounding property, not just the slab itself. <a href=http://www.diamondcertified.org/report/letcher-brothers-auto-repair target=_self>Letcher Brothers Auto Repair</a> Letcher Brothers Auto Repair has served Pinole since 1991, repairing European, Japanese, American, and fleet vehicles with services that range from tune-ups and computer diagnostics to full engine and transmission repairs. Owner Mike Letcher runs a relationship-driven shop that stays upfront, moves efficiently and focuses on solving problems without wasting time. The team shows customers physical evidence or photos before starting work, explains options clearly, and avoids selling unnecessary repairs. <a href=https://www.diamondcertified.org/report/longshore-handyman target=_self>Longshore Handyman</a> Longshore Handyman provides home repair and remodeling services in Contra Costa, Alameda, Marin, and San Francisco Counties, covering everything from door installations and stucco repairs to full kitchen and bathroom remodels. Owner Dennys Galindo stays flexible as conditions change, and he uses that adaptability to flag potential issues early and suggest better alternatives when they make sense. Each project starts with a detailed walkthrough so everyone aligns on scope, then the team reinforces cleanliness, safety, and efficiency on site to protect the home and the experience.  <a href=http://www.diamondcertified.org/report/maintenance-agents target=_self>Maintenance Agents</a> Maintenance Agents provides window cleaning, pressure washing, and gutter cleaning services for residential and commercial properties throughout the Bay Area. Owner Jose Barajas works as an onsite owner-operator, so clients get direct communication, real-time decisions, and a steady focus on safety and professionalism. He flags access limits or safety concerns upfront and collaborates with property owners on the best plan, which helps avoid surprises and protects the building. <a href=https://www.diamondcertified.org/report/marc-guay-team/ target=_self>Marc Guay Team</a> Marc Guay Team, in partnership with Coldwell Banker Realty, helps buyers and sellers navigate residential real estate in Berkeley and surrounding communities, with support for small commercial transactions when needed. Marc Guay brings decades of local experience and pairs it with the tools and marketing reach of a major brokerage, which helps clients price, position and protect their interests in changing market conditions. He communicates clearly, stays transparent about timelines and remains consistently available, even when nothing major changes week to week. <a href=http://www.diamondcertified.org/report/marco-roofing target=_self>Marco Roofing</a> Marco Roofing installs and repairs residential roofs in parts of Contra Costa County and Alameda, Santa Clara, and San Mateo Counties, with a focus on reroofing, custom homes and repairs. The company works with composition shingles, clay and concrete tile, wood shakes and shingles, standing seam metal, and custom gutter and downspout systems. General Manager Chad Creeden grew up in the trade and manages projects end to end, emphasizing integrity and quality over volume. <a href=https://www.diamondcertified.org/report/martinez-stair-company-inc/ target=_self>Martinez Stair Company Inc.</a> Martinez Stair Company Inc. designs and installs custom wood stairs, staircases, railings, and stair components for residential and commercial clients in Contra Costa and Alameda Counties. President Taro Martinez runs a cleanliness-first, respect-the-home operation, and his crews work in careful sections to keep sites safer and less disruptive. The company stays on the job until completion rather than bouncing between projects, which helps quality stay consistent from rough build through finish details. <a href=http://www.diamondcertified.org/report/maximum-carpet-cleaning target=_self>Maximum Carpet Cleaning</a> Maximum Carpet Cleaning serves Central Contra Costa County with carpet, upholstery, area rug, and tile and grout cleaning for both homes and businesses. The family-owned team uses a low-moisture, soap-free method that deep cleans without harsh chemicals and also supports 24/7 response for water-damaged surfaces. Owner Dave Steely works alongside his sons, and they focus on building trust through detail-oriented service and clear education on maintenance that protects carpet and upholstery investments. <a href=https://www.diamondcertified.org/report/mchales-environmental-insulation-inc/ target=_self>McHale’s Environmental Insulation, Inc.</a> McHale’s Environmental Insulation, Inc. has helped Bay Area homeowners improve comfort and energy efficiency since 1978, installing materials like cellulose, fiberglass, cotton, sheep’s wool, rockwool and radiant barriers. The team specializes in attics, walls and floors, and it also removes old insulation and offers free inspections to determine what still works and what needs upgrading. President Daniel Hair brings decades of journeyman experience and guides customers through options after a thorough home evaluation that looks at insulation levels, ducts, and key leak points. Because the company can also help clients pursue available rebates and financing, homeowners can move forward with practical upgrades that improve performance without guesswork. <a href=http://www.diamondcertified.org/report/metropolitan-van-storage-inc target=_self>Metropolitan Van & Storage, Inc.</a> Metropolitan Van & Storage, Inc. has handled local, national and international moves throughout Northern California since the 1940s, and the company brings a full-service approach that covers packing, crating, and even modular furniture installation. Clients can also use long-term or in-transit storage at three locations in Benicia, West Sacramento and Mountain View, which helps keep complicated relocations organized. With detailed inventories, condition tracking, and a dedicated move representative who stays in contact and manages paperwork, homeowners and businesses always know what’s next. <a href=https://www.diamondcertified.org/report/mighty-men-services-llc/ target=_self>Mighty Men Services, LLC</a> Mighty Men Services, LLC cleans attics and crawl spaces, removes insulation, and provides pest and rodent control in Contra Costa, San Francisco, Alameda, Solano, and Napa Counties. The family-run team moves fast, customizes treatment plans to each property and follows up to confirm the issue is truly resolved. Owner Maria Talacona also brings a humane mindset through the Good Mother Program, which removes animals and their young without separating them. Because the company educates homeowners on warning signs and prevention steps, clients get a clearer plan to keep pests from coming back. <a href=https://www.diamondcertified.org/report/miguels-professional-painting target=_self>Miguel’s Professional Painting</a> Miguel’s Professional Painting provides interior and exterior painting for homeowners in Contra Costa and Alameda Counties, with added capabilities like cabinet painting, door and deck staining, and sheetrock and wall texturing. Owner Miguel Espinoza focuses on responsiveness and comfort, so clients get clear answers, tidy work areas and a team that treats the home with respect from preparation through final walkthrough. Instead of forcing a one-size-fits-all process, the crew adapts to the project’s needs and aims to leave the space better than they found it. <a href=https://www.diamondcertified.org/report/moore-mechanical-heating-air-conditioning target=_self>Moore Mechanical Heating & Air Conditioning</a> Moore Mechanical Heating & Air Conditioning has served Contra Costa and Alameda Counties since 1985, providing HVAC repair, replacement, and maintenance for both residential and commercial clients. General Manager Josh Henrich continues the company’s reputation for personal service, so customers talk to real people, get fast appointments and receive options that fit the home instead of generic recommendations. The team takes a whole-home approach that includes in-depth diagnostics, ductwork evaluation and air quality reviews, which helps make quotes more accurate and fixes more complete. <a href=http://www.diamondcertified.org/report/natural-landscaping-contractors target=_self>Natural Landscaping Contractors</a> Natural Landscaping Contractors creates complete outdoor environments for homeowners in Contra Costa County and parts of Alameda County, handling everything from paving, retaining walls, decks and grading to drainage, planting, lawns, lighting and mulch. Owner Paul Singh runs a collaborative process that starts with a goal-focused consultation and a preliminary design, so clients see direction and approximate costs early. He takes projects one at a time to stay focused, which helps avoid delays and keeps decision-making clearer throughout the build. Because he pairs design creativity with real horticultural knowledge, homeowners end up with landscapes that hold up as plants mature and conditions change. <a href=http://www.diamondcertified.org/report/osborn-spray-service target=_self>Osborn Spray Service</a> Osborn Spray Service has protected East Bay properties since 1938, providing pest control in Contra Costa and Alameda Counties, plus weed control and tree services like spraying, injection, and fertilization. Second-generation owner Dave Osborn emphasizes personal service, and the team returns quickly when a problem needs follow-up instead of making clients wait weeks. The company avoids sales pressure by skipping salespeople altogether, so the focus stays on solving the issue and letting homeowners decide based on clear quotes. With year-round programs and technicians who stay current through industry associations, Osborn Spray Service delivers steady, relationship-driven pest control. <a href=http://www.diamondcertified.org/report/pacific-coast-carpet-inc target=_self>Pacific Coast Carpet, Inc.</a> Pacific Coast Carpet, Inc. has served the Concord community since 1975, offering carpet, hardwood, tile, laminate, and vinyl/resilient flooring along with custom area rugs. The family-owned showroom works with leading manufacturers, and bilingual sales pros explain product differences in a way that helps homeowners choose floors that truly fit their lifestyle. The company also keeps a large inventory on hand so customers can get new flooring faster instead of waiting weeks for special orders. <a href=https://www.diamondcertified.org/report/paintmasters target=_self>Paintmasters</a> Paintmasters has delivered interior and exterior painting services in Contra Costa, Alameda, and Solano Counties since 1992, handling everything from painting and staining to cabinet and door finishes, drywall and stucco repair, and popcorn ceiling removal. Owner David Miles leads with prep-first discipline, so scraping, sanding and surface correction get real attention before a brush ever touches the wall. The company trains and keeps a steady crew instead of cycling through temporary labor, which helps quality stay consistent from start to finish. <a href=http://www.diamondcertified.org/report/paradigm-concrete-construction-inc target=_self>Paradigm Concrete & Construction, Inc.</a> Paradigm Concrete & Construction, Inc. has served Contra Costa and Alameda Counties since 1995, installing and replacing concrete and masonry features like sidewalks, patios, driveways, and pool decks. Because the company holds a C-8 specialty license, it can deliver higher-end looks with exposed aggregate, slate, tile and brick, plus finishes like broom, stamp, overlay and custom color work. Owner Salvador Arteaga and his team also spot site issues early, so they can flag drainage or structural concerns before they turn into expensive surprises. And instead of running jobs like an assembly line, Paradigm stays transparent, keeps clients updated and fine-tunes details that most people miss. <a href=https://www.diamondcertified.org/report/perfect-star-heating-air-conditioning/ target=_self>Perfect Star Heating, Cooling, & Electrical</a> Perfect Star Heating, Cooling, & Electrical serves Contra Costa and Alameda Counties as a locally owned business that keeps comfort and responsiveness front and center. The company handles heating and AC repairs, replacements, ductless mini-splits, ductwork, indoor air quality upgrades, electrical work, and even solar, so homeowners can solve multiple needs with one expert team. Because Perfect Star tackles complex projects other contractors avoid, it pairs thorough sizing and code-ready installation practices with the kind of detail-oriented work that protects long-term performance. <a href=https://www.diamondcertified.org/report/pool-landscape-development-inc/ target=_self>Pool & Landscape Development Inc.</a> Pool & Landscape Development Inc. has built custom pools, spas, and water features in Contra Costa and Alameda Counties since 1992, and it rounds out those projects with decks, pavilions, outdoor kitchens, landscaping, and other exterior upgrades. President and CEO Todd Maltbie leads with a direct, no-surprises style, so clients understand options early and avoid hidden-cost headaches later. Instead of pushing speed over craftsmanship, the team sets a high quality bar and builds pools and outdoor spaces that are designed to last.  <a href=https://www.diamondcertified.org/report/ppwpm-inc target=_self>PPWPM Inc.</a> PPWPM Inc. provides pressure washing and property maintenance services in Contra Costa and Alameda Counties, using both power and soft washing for driveways, decks, roofs, windows, and more, including HOA and parking garage work. The company starts with well-trained technicians and backs them up with active oversight, including jobsite visits from operations managers and a post-job walkthrough so nothing feels missed. Owner Brandon Cody emphasizes lasting results, and the team often fixes work that other cleaners rushed or handled incorrectly. <a href=http://www.diamondcertified.org/report/precision-cleaning-services target=_self>Precision Cleaning Services</a> Precision Cleaning Services delivers high-level carpet, rug, upholstery, stone, tile, and grout cleaning for residential and commercial clients, with special expertise in pet stain removal and carpet repairs. Owner Curt Holman has served the Bay Area since 1994, and he stays on every jobsite so clients get direct accountability and consistent quality. He relies on truck-mounted steam cleaning for quality results and better dry times, then uses turbo fans and smart commercial practices like double cleaning to reduce residue and help prevent stain return. <a href=http://www.diamondcertified.org/report/premiergarage target=_self>PremierGarage</a> PremierGarage transforms garages with floor coatings, custom modular cabinets, organizers and storage solutions designed around how the space is actually used. The local ownership team stays hands-on, communicates closely with crews and customers, and stays easy to reach when questions come up. Because the process starts with a free in-home consultation and continues with careful planning, homeowners can build anything from a clean parking space to a workshop or hobby zone without guessing through the details.  <a href=http://www.diamondcertified.org/report/quality-windows-doors-inc target=_self>Quality Windows & Doors, Inc.</a> Quality Windows & Doors, Inc. has served Contra Costa and Alameda Counties since 1989, installing replacement windows and doors for homeowners and contractors with a strong focus on trust and jobsite cleanliness. The company’s Pleasanton showroom features premium brands like Andersen, Marvin, Milgard, ProVia and Masonite, and it backs that product lineup with respected credentials such as InstallationMasters™ and AAMA accreditation. Even on “fast” retrofit replacements, the installers work with the same meticulous approach they bring to complex projects that involve stucco, trim changes or coordination with electrical work.  <a href=http://www.diamondcertified.org/report/qualtech-heating-cooling target=_self>Qualtech Heating & Cooling</a> For more than 18 years, Qualtech Heating & Cooling has provided HVAC installation, repair, and maintenance services for residential and light commercial clients throughout Contra Costa and Alameda Counties. The company stays current with evolving heat pump technology, air duct cleaning, and indoor air quality solutions while helping homeowners navigate California rebates and incentives with confidence. Owner Myriam Rios emphasizes clear communication and long-term relationships, ensuring every client understands their options and feels comfortable throughout the process. By combining technical expertise with responsive service, Qualtech delivers energy-efficient systems designed for dependable performance and lasting comfort. <a href=http://www.diamondcertified.org/report/r-p-garage-doors target=_self>R & P Garage Doors</a> Since 1996, R & P Garage Doors has installed and serviced residential and commercial garage doors throughout the East Bay, offering everything from economy models to custom wood, steel and copper designs. With more than four decades of industry experience, owner Rick Gibbs focuses on high-quality materials and careful installation practices that prioritize durability over shortcuts. The company takes time to educate homeowners about components and maintenance, helping them make informed decisions about their investment. Backed by skilled craftsmanship and a straightforward service approach, R & P delivers garage door solutions built for reliability and long-term value. <a href=https://www.diamondcertified.org/report/reactic-restoration/ target=_self>Reactic Restoration</a> Reactic Restoration provides comprehensive water and fire damage remediation services for residential and commercial properties throughout the Greater Bay Area and Sacramento. With trained technicians and dedicated project oversight, the company manages everything from the initial inspection through the final restoration, including mold remediation and crawl space services when needed. Business Operations Manager Atar Barkai notes that clear communication and steady guidance help reduce stress during difficult situations. By combining technical expertise with consistent follow-through, Reactic delivers organized, professional restoration services that homeowners and property managers can trust. <a href=http://www.diamondcertified.org/report/rockridge-builders target=_self>Rockridge Builders</a> Founded in 1976, Rockridge Builders provides design/build construction services for residential and commercial clients throughout the East Bay, ranging from kitchen and bathroom remodels to custom homes and complex structural projects. Owner Bill Hinkamp, a UC Berkeley College of Environmental Design graduate, brings decades of experience solving challenging design and construction issues. The company approaches each project with careful planning, transparent communication and attention to structural integrity. With more than 1,000 completed projects, Rockridge Builders offers experienced leadership and thoughtful execution from concept to completion. <a href=http://www.diamondcertified.org/report/roof-life-construction target=_self>Roof-Life Construction</a> Roof-Life Construction installs and maintains roofing systems for residential and commercial clients in Contra Costa and Alameda Counties. In addition to roofing, the company provides gutter installation, sheet metal work, skylights, attic insulation and solar integration. President Tom Rhoads emphasizes honest communication and manufacturer-certified installation practices to ensure each roof meets strict performance standards. With a 10-year workmanship warranty and a proactive maintenance program, Roof-Life delivers durable roofing systems backed by experienced professionals. <a href=https://www.diamondcertified.org/report/rooter-hero-plumbing/ target=_self>Rooter Hero Plumbing</a> Rooter Hero Plumbing provides residential and commercial plumbing services throughout Contra Costa, Alameda, and Solano Counties, handling everything from fixture repairs to sewer line inspections and replacements. Available 24/7 for emergencies, the company focuses on accurate diagnoses and clear explanations so customers understand their options before work begins. Service Manager Nathan Bain emphasizes long-term relationships built on reliability and responsiveness. With trained technicians and consistent communication, Rooter Hero delivers organized plumbing solutions that are designed to prevent recurring issues and protect property investments. <a href=https://www.diamondcertified.org/report/schicker-luxury-bath/ target=_self>Schicker Luxury Bath</a> Schicker Luxury Bath provides full-service bathroom remodeling for homeowners throughout the Greater Bay Area, from tub-to-shower conversions to complete custom renovations. Clients work directly with an in-house designer to select finishes, fixtures and layouts, then the company’s own employees handle ordering and installation for a streamlined process. Because the team confirms measurements before production and provides fixed pricing upfront, homeowners avoid delays and surprise costs. <a href=http://www.diamondcertified.org/report/schicker-luxury-shower-doors-inc target=_self>Schicker Luxury Shower Doors, Inc.</a> Since 1980, Schicker Luxury Shower Doors, Inc. has designed, manufactured, and installed custom shower enclosures for residential and commercial clients throughout the Bay Area. The company focuses exclusively on shower glass, offering a wide range of patterns, hardware finishes and custom configurations built to exact specifications. By handling every phase in-house with trained technicians, Schicker maintains strict quality control and consistent installation standards. With decades of specialization and strong supplier relationships, the team delivers precision-fit enclosures that elevate bathroom design and hold up over time. <a href=http://www.diamondcertified.org/report/service-champions target=_self>Service Champions</a> Service Champions delivers heating, cooling, plumbing, electrical, ductwork and insulation services for homeowners throughout Northern California. The company invests heavily in technician training through its in-house Champions University and ensures every team member meets strict hiring and certification standards. Beyond technical skill, Service Champions emphasizes punctuality, professionalism and clear pricing so clients know what to expect. Backed by multiple service guarantees and a long-standing family presence in the industry, the company focuses on creating positive home service experiences. <a href=http://www.diamondcertified.org/report/springs-construction target=_self>Springs Construction</a> Since 1959, Springs Construction has provided full-service residential remodeling and new home construction services throughout the Bay Area. The company manages projects from pre-construction planning through turnkey completion, supported by in-house designers and experienced project managers who coordinate every detail. Decades of experience allow the team to anticipate challenges, maintain realistic timelines and guide homeowners confidently through complex renovations. With a structured process and consistent oversight, Springs delivers thoughtfully built homes designed for lasting quality. <a href=http://www.diamondcertified.org/report/springtown-wellness-center-jag-dhesi-d-c target=_self>Springtown Wellness Center - Jag Dhesi, D.C.</a> Springtown Wellness Center offers chiropractic care and wellness services at its Livermore and San Ramon locations, helping patients address pain, mobility issues and overall health concerns. Dr. Jag Dhesi and his team develop customized treatment plans that may include chiropractic adjustments, corrective exercises, nutritional guidance, and lifestyle support. Because the practice avoids one-size-fits-all care, patients receive solutions tailored to their specific conditions and goals. With a holistic approach and clear communication, Springtown Wellness Center focuses on restoring function and supporting long-term wellness. <a href=http://www.diamondcertified.org/report/steve-roberts-painting target=_self>Steve Roberts Painting</a> Steve Roberts Painting provides interior and exterior painting services for residential and commercial properties in Contra Costa and Alameda Counties. The company emphasizes meticulous surface preparation, hands-on project oversight, and careful application techniques to ensure clean, durable finishes. Owner Steve Roberts remains actively involved in quality control, reviewing progress and confirming that every detail meets high standards. By prioritizing craftsmanship over speed, the team delivers polished results that enhance and protect each property. <a href=https://www.diamondcertified.org/report/sulvaran-drywall/ target=_self>Sulvaran Drywall</a> Sulvaran Drywall installs, repairs, patches, and textures drywall for homeowners in Contra Costa and Alameda Counties. The company also addresses water-damaged drywall, removes popcorn ceilings and provides soundproofing solutions. Owner Tomas Sulvaran stays closely involved from the estimate through the final walkthrough, ensuring clear communication and consistent workmanship. With careful dust control and thorough cleanup practices, the team protects homes while delivering smooth, high-quality finishes. <a href=https://www.diamondcertified.org/report/sunbusters-patio-cover-company-inc target=_self>Sunbusters Patio Cover Company, Inc.</a> Since 1998, Sunbusters Patio Cover Company, Inc. has designed and installed patio covers, lattices, louvers, and custom outdoor structures for residential and commercial clients throughout Northern California. The veteran-owned company works with leading manufacturers while also creating fully customized designs tailored to each property. By conducting ongoing quality checks during installation and maintaining open communication, the team ensures projects stay on track and meet expectations. <a href=http://www.diamondcertified.org/report/superior-plumbing-drain-cleaning-services target=_self>Superior Plumbing & Drain Cleaning Services</a> Superior Plumbing & Drain Cleaning Services provides residential and commercial plumbing throughout the East Bay, handling everything from fixture repairs to sewer line replacements, drain cleaning and hydro jetting. Family-owned and operated, the company emphasizes careful workmanship, protective practices in clients’ homes and double-checking work before wrapping up. Many services are offered at flat rates, and larger jobs come with clear, honest estimates. With proactive communication around any scope changes and a 100% satisfaction guarantee, customers know what to expect and can avoid billing surprises. <a href=https://www.diamondcertified.org/report/sweet-lemon-moving-services target=_self>Sweet Lemon Moving Services</a> Sweet Lemon Moving Services provides local and interstate moving for residential and commercial clients in the East Bay, San Francisco, and Marin County. In addition to moving, the team handles packing and unpacking and can complete specialty deliveries for appliances and furniture. The company is known for matching the crew and logistics to the size and complexity of each move. With upfront, straightforward pricing and a focus on communication and professionalism, Sweet Lemon aims to make a typically stressful process feel organized and fair. <a href=http://www.diamondcertified.org/report/terrys-tree-service-inc target=_self>Terry’s Tree Service, Inc.</a> Terry’s Tree Service, Inc. provides full-service tree care for residential, commercial, and industrial clients in parts of Contra Costa and Alameda Counties. Services include planting, trimming, shaping, removals, stump grinding, brush chipping, yard cleanup and fire-prevention support. The company stands out for responsiveness and a safety-first culture, reinforced through regular safety meetings and thorough technician training. With an emphasis on showing up on time, doing exactly what’s promised and going the extra mile, Terry’s Tree Service builds long-term trust with its clients. <a href=http://www.diamondcertified.org/report/the-floor-store target=_self>The Floor Store</a> The Floor Store is a full-service Bay Area flooring retailer with 10 locations offering carpet, hardwood, laminate, luxury vinyl, tile, natural stone and more. Founded in 1986, the company combines broad access to major manufacturers with direct importing of select materials that can be difficult to find through typical channels. Customers receive guidance from design and color specialists who help build cohesive interior selections rather than just choosing a single product. With large-format displays in select showrooms and a service approach that prioritizes personalized support, The Floor Store makes big flooring decisions feel easier. <a href=http://www.diamondcertified.org/report/the-pool-doctor target=_self>The Pool Doctor</a> The Pool Doctor has serviced and repaired Bay Area pools and spas since 1956, providing maintenance, cleaning, consultation and chemical treatment on schedules tailored to each client. The company’s experienced staff focuses on reliability and customer satisfaction through ongoing training and best-practice updates. In addition to routine service, The Pool Doctor specializes in automation and energy-efficient upgrades that can significantly reduce operating costs. With licensed capabilities for compliance work and specialized underwater repairs, clients get a seasoned team that can handle both everyday upkeep and complex pool needs. <a href=https://www.diamondcertified.org/report/top-remodeling-design-inc target=_self>Top Remodeling & Design, Inc.</a> Top Remodeling & Design, Inc. provides design/build remodeling for homeowners in Contra Costa, Alameda, and San Francisco Counties, including kitchens, bathrooms, room additions and ADUs. The company manages projects in-house and offers free consultations, with showroom support through Pietra Kitchen and Bath to help clients visualize selections. Known for transparency, the team clearly explains the process; flags potential challenges early; and stays responsive by phone, text or email. By prioritizing honest pricing and consistent communication, Top Remodeling & Design helps homeowners feel informed and supported from concept through completion. <a href=http://www.diamondcertified.org/report/water-heaters-masters-inc target=_self>Water Heaters Masters Inc.</a> Water Heaters Masters Inc. installs, replaces, and repairs residential and commercial water heaters in Contra Costa, Alameda, Santa Clara, Solano, and Sacramento Counties. The company works with standard, tankless, heat pump, and high-efficiency models and keeps a strong inventory of parts on its trucks for faster service. Owner Matthew Hechim brings decades of plumbing and construction experience and takes time to explain options so customers can make confident decisions. By emphasizing quality name-brand equipment and a detail-oriented approach, Water Heaters Masters aims to deliver durable solutions with clear guidance. <a href=http://www.diamondcertified.org/report/west-coast-windows-and-doors-inc target=_self>West Coast Windows and Doors, Inc.</a> West Coast Windows and Doors, Inc. provides and installs energy-efficient windows and doors for homeowners in Contra Costa and Alameda Counties. With a Concord showroom and access to top manufacturers, the company supports projects that improve comfort, appearance, and long-term utility performance. Owners Richard Beil and Kelly Mullins stay closely involved from first contact through installation, reinforcing accountability and consistent follow-through. Known for straightforward pricing and careful jobsite protection, West Coast Windows and Doors focuses on earning trust through hands-on leadership and clean, professional work. <a href=https://www.diamondcertified.org/report/yorkshire-roofing-of-northern-california-inc-dba-roofmax/ target=_self>Yorkshire Roofing of Northern California Inc. DBA Roofmax</a> Yorkshire Roofing of Northern California Inc. DBA Roofmax provides residential and commercial roofing in Contra Costa and Alameda Counties, working with materials ranging from composition shingles and metal to flat/low-slope systems. The company also supports related upgrades such as solar, insulation, gutters, skylights and ventilation to create more complete exterior solutions. Roofmax emphasizes detailed proposals, clear options and dedicated project management so homeowners have a consistent point of contact from start to finish. With a quality-focused process and strong communication designed to build trust, clients get roofing work that’s carefully managed and built to perform.