diamond certified company certificate

Companies must pass rigorous rating standards to earn Diamond Certified. Photo: American Ratings Corporation ©2019

Welcome Aboard!

We’re pleased to announce that the following companies have recently been awarded Diamond Certified. That means they’ve passed our rigorous 12-step ratings process and scored Highest in Quality and Helpful Expertise®.


Edge Roofing

(415) 529-6796


Services Performed: Roof Installation & Repair, Roof Inspections, Seamless Gutter Installation, Emergency Repairs

Areas Served: The Entire Bay Area


The Plumbing Guys

(408) 680-8967


Services Performed: Copper-Based Repiping, Sewer & Gas Lines, Water Heater Replacements, Sewer Video Inspections, Plumbing Fixture Installation

Areas Served: Santa Clara County


PRI-Premiere Roofing Inc.

(510) 398-0072

(209) 208-4013


Services Performed: Roof Replacement, Repair & Maintenance; Waterproofing; Composition Shingle, Tile, Metal, Flat & Wood Shake Roofs

Areas Served: The East Bay


Metric Motors

(707) 206-7356


Services Performed: Auto Repair & Maintenance, Engine & Transmission Repairs, Electrical Repairs & Modifications, Diagnostics, Pre-Purchase Inspections, Suspension & Steering Service, Tires & Brakes

Areas Served: Sonoma County


Fireside Property Management

(408) 498-7959


Services Performed: Residential Property Management, Property Marketing, Tenant Screening, Rent Collection, Property Inspection, Financial Reports

Areas Served: Santa Clara County


Satisfied Customers

People who choose Diamond Certified companies see the difference in customer service and level of expertise. We often hear from local consumers who want to let us know about their experiences.

precision overhead door services

Customers are impressed by Precision Door Services of the Bay Area’s honest, knowledgeable technicians. Photo: Precision Door Services of the Bay Area ©2019

We recently received an email from J. Toscana, who completed a major home renovation project with Thompson Construction. They credit the company for building “a beautiful and contemporary family compound created to our specifications.”

Sylvia is glad she chose Smart Plumbers, Inc. to replace her water heater. “The space was small,” she says, “but Alex, the technician, managed to accomplish this big job with strength, hard work and experience. He was terrific.”

Dora and David used the Diamond Certified Resource to find Precision Door Services of the Bay Area. They call the company “a gem.” They appreciated being able to get a same-day appointment and describe their technician as “honest and knowledgeable,” adding, “if you need your garage door serviced, be sure to call Precision Door.”

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