diamond certified company certificate

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 rating process and scored Highest in Quality and Helpful Expertise®.


Dana Meyer Auto Care

(408) 256-2978


Services Performed: Auto Repair & Maintenance, Engine & Transmission Repair, Diagnostic Services, Brakes, Heating & Cooling Systems, Tires

Areas Served: Alameda and Contra Costa Counties


Blue Dog Construction & Renovation

(925) 267-6324


Services Performed: Design/Build Construction & Remodeling, Additions, Green Building

Areas Served: Contra Costa and Alameda Counties


All Bay Insulation & HVAC

(650) 293-9391


Services Performed: Air Sealing; Attic and Crawl Space Insulation; Air Duct Cleaning, Repair and Replacement; HVAC Repair and Replacement; Dryer Vent Cleaning; Energy Audits

Areas Served: The Bay Area


Pacific Air USA

(408) 430-7982


Services Performed: Insulation; Rodent Exclusion; HVAC Installation, Maintenance & Repair; Air Duct Leakage Repair; Air Duct Cleaning; Dryer Vent Cleaning

Areas Served: The Greater Bay Area


Sentry Security Services, Inc.
(925) 201-6139


Services Performed: Uniformed Security Guard Service, Loss Control & Prevention, Site Security Assessments, Guard Tracking Software, Access Control

Areas Served: The Greater Bay Area


The Car Doctor

(925) 968-4723


Services Performed: Full-Service Automotive Repair, Tires & Brakes, Engine & Transmission Replacement, Hybrid Battery Pack Replacement, Auto Glass Replacement, Suspension, Oil Changes

Areas Served: Contra Costa County


SLB Business Management – PW Compliance
(707) 200-1249


Services Performed: Labor Compliance Audits, Certified Payroll Services, Preliminary Notices and Bookkeeping, Lien Preparation, Owner and Progress Billing, Notary Services

Areas Served: California


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