Top Rated Commercial Contractors Serving San Leandro, CA
If you really care about choosing a quality commercial contractor, we’re here for you. Here’s your access to the best commercial contractors serving San Leandro including 94577, 94578 and 94579. These contracting experts provide tenant improvements and commercial renovation services, and they also work on commercial landscaping services, office remodeling and commercial waterproofing. For 22 years we’ve conducted the most accurate ratings and deepest research of local contractors, so you’ll be confident in choosing.
Last Updated May 15, 2026
6,192 people sourced companies in Contractor - Commercial
Peninsula Design and Construction provides a comprehensive range of remodeling and construction services for both residential and commercial clients a...
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Main Services
Contractor - Design & Build
Contractor - Commercial
Additional Services
Ground-Up Residential and Commercial Construction, Home Repairs, Carpentry, Custom Cabinets, HVAC, Plumbing and Electrical Work, Concrete Work, Painting, Roofing
Coverage Areas
San Mateo County, San Francisco County, Santa Clara County, Alameda County, Contra Costa County
Diamond Certified Commercial Contractors Serve These San Leandro ZIP Codes
94577, 94578, 94579
Diamond Certified Commercial Contractors In San Leandro
Diamond Certified commercial contractors serving San Leandro are rated an average of 4.7 out of 5 stars based on 355 reviews of 10 rated commercial contractors. Diamond Certified commercial contractors in San Leandro Avg. Star Rating.
We make you an expert at choosing a high-quality commercial contractor in the San Leandro area.
For those who love quality local commercial contractors.
Within our Diamond Certified Resource:
You choose from only top rated Diamond Certified commercial contractors that serve our San Leandro area.
You see each contractor’s deeply researched report from our research.
You’ll love and refer your friends and family to your new San Leandro area Diamond Certified commercial contractor. They provide expert services, including commercial signage installation, commercial landscaping services, commercial waterproofing, commercial project management, commercial flooring installations, and more.
Every Diamond Certified commercial contractor that serves residents in 94577, 94578 and 94579 performs various specialties, including commercial painting services, commercial HVAC systems, commercial plumbing services, commercial roofing, and commercial building maintenance.
How to Choose a Quality San Leandro Commercial Contractor for Your Family
Click the name of the contractor to get to their Diamond Certified Company Report page.
Watch their Diamond Certified Video Profile and other videos that we’ve created for you.
Read their verbatim client survey responses and our researched articles.
Get helpful commercial contracting tips if they are a Diamond Certified Expert Contributor.
Call or email them to schedule an appointment.
Become a Diamond Certified Preferred Member and Join Your San Leandro Neighbors
If you love quality local contractors, this is for you. Become a Diamond Certified Preferred Member (always free) and get a double performance guarantee, extra guides and tips, our annual Diamond Certified Directory, and more.
Your Diamond Certified Resource. We make you an expert at choosing.
We make you an expert at choosing local companies by giving you the most accurate ratings, deeply researched company reports and Diamond Certified Guide of all Resource Guides, which cover 70+ industries in the Auto, Home, Health and Personal service categories. Each guide contains 16 key articles that are separated into “Before, During and After the Job” tabs. These are written to guide you through each phase of hiring, starting, managing and ending a job in that specific type of service.
Diamond Certified Resource Compared to Crowd-Sourced Review Sites
Diamond Certified Resource’s ratings of local companies are based on surveys of only verified real customers, so they are the most accurate. This beats crowd-sourced review sites like Yelp, Angi or even Google that are plagued with fake, manipulated, cherry-picked and non-customer reviews, which produce inaccurate and often inflated rating scores.
Diamond Certified Resource’s deeply researched reports of top rated Diamond Certified companies include everything you need to see to be very confident in choosing a top rated local company. Each company report includes detailed quality ratings and scoring, verbatim customer survey responses, a profile video, a company story video, a capabilities table, a photo gallery, researched articles, unique expert contributions from the company’s owner, and more. This beats crowd-sourced review sites that solicit companies to “claim their business listing” and add any type of info to their profiles. This sounds good, but it has led to company profiles that are littered with false claims and incomplete info.
San Leandro was founded in 1872, and today, your 89,830 neighbors enjoy open air markets, winemaking, wine tasting, game nights and go-karting. San Leandrans use Diamond Certified commercial contractors for tenant improvements, commercial roofing, commercial signage installation, commercial carpentry, commercial landscaping services, and more.
Frequently Asked Questions for Contractor - Commercial in San Leandro, CA
Q: What are clients of Diamond Certified commercial contractors saying about contractors in San Leandro, CA?
A: Verified Peninsula Design and Construction Customer, 1 of 10 "They are reliable, costly, efficient and considerate of your time and money. They are always up for brainstorming and finding solutions to your problems, which can be life saving when you are stuck with issues in the middle of a project. They are also empathetic and considerate of all the mental challenges you may go through during a project. Their professionalism yet their warmth and helpfulness during hard times, trust me, renovations are hard." - Amelia R. All Survey Responses for Peninsula Design and Construction
Q: What are some of the most popular brands that Diamond Certified commercial contractors use when working with San Leandro residents?
A: Diamond Certified commercial contractors use top-quality brands like Makita, DeWalt, Pella, Schlage and Simpson Strong-Tie.
Q: What types of commercial renovation services do commercial contractors offer?
A: Commercial contractors offer a wide range of demolition services, including interior demolition and strip outs, partial or total building demolition, deconstruction, hazardous materials removal, and site preparation for new construction. They can also provide specialty services such as hazardous waste disposal, underground utility removal, and even environmental remediation. In addition, many commercial demolition contractors offer recycling services to ensure that material is disposed of properly and in compliance with local regulations.
Q: Can Diamond Certified commercial contractors work with Bosch products and similar items so I can get tenant improvements in San Leandro?
A: Yes, Diamond Certified commercial contractors can work with Bosch products and similar items to get tenant improvements in San Leandro.
Q: What did people search for when they wanted to find the best quality commercial contractors in San Leandro?
San Leandro is our home and we love it! Here you’ll find the best spots to revisit, the San Leandro events schedule, local social media links, stories of our San Leandro area unsung heroes and much more. Connect with your neighbors and share what you love about our hometown. Plus, join us as a San Leandro Diamond Certified Preferred Member (always free).
Downtown San Leandro features numerous local shops, eateries and community events. Photo: Matt Gush
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