These contractors have SiteVetter Safety Scores of 85+ out of 100, indicating strong compliance with licensing, insurance, bonding, and federal requirements.
A SiteVetter Safety Score is a proprietary 0-100 compliance rating that aggregates contractor data from six sources: California Contractors State License Board (CSLB), SAM.gov federal exclusions, OSHA safety inspections, Department of Labor wage records, EPA environmental compliance, and building permit records from major California cities. In Concord, CA, 50 contractors currently hold Safety Scores of 85 or above, qualifying them as “top-rated” for 2026.
Our Safety Score aggregates data from 6 sources: CSLB license status, workers' compensation coverage, contractor bonding, federal databases including SAM.gov (debarment), OSHA (safety violations), DOL (wage violations), and building permits. Scores of 85+ indicate contractors with active licenses, proper insurance, and clean federal records.
Ranked by SiteVetter Safety Score, highest first
Ghd Services INC
License #855376 · A
Grade A · Excellent
D & D Learning Spaces
License #844527 · B
Grade A · Excellent
Reams Andrew Painting
License #961451 · C33
Grade A · Excellent
Alfa Electric INC
License #995786 · C10
Grade A · Excellent
Economy Medical Incorporated
License #942695 · D21
Grade A · Excellent
Chapman Aaron Builders
License #869111 · B
Grade A · Excellent
L Columna General Contractor
License #852468 · A
Grade A · Excellent
Renovation Studio the
License #916131 · B
Grade A · Excellent
Cuevas Tile & Marble
License #884724 · C54
Grade A · Excellent
Lightriver Technologies INC
License #960067 · C-7
Grade A · Excellent
A & J Fencing
License #874803 · B
Grade A · Excellent
West Coast Sign and Installation
License #871353 · C45
Grade A · Excellent
Building Services / System Maintenance Incorporated
License #870303 · B
Grade A · Excellent
Acker Roofing INC
License #993338 · C39
Grade A · Excellent
Martinez Stair Company INC
License #848380 · B
Grade A · Excellent
Bayside Insulation & Construction INC
License #991280 · B
Grade A · Excellent
Premier Media Integration
License #976517 · C-7
Grade A · Excellent
Lamorinda Stone Tile
License #861943 · C54
Grade A · Excellent
White Magic Cleaning and Restoration INC
License #836292 · B
Grade A · Excellent
Premier Hardwood Floor INC
License #860557 · C15
Grade A · Excellent
Cornerstone Environmental Contractors INC
License #722253 · A
Grade A · Excellent
Lawlor Tim Construction
License #929031 · B
Grade A · Excellent
Mortensen Roofing & Gutters INC
License #583533 · C39
Grade A · Excellent
T & D Contracting Services
License #600638 · B
Grade A · Excellent
Enterprise Roofing Service INC
License #221274 · ASB
Grade A · Excellent
Professional Flooring and Design INC
License #610635 · C15
Grade A · Excellent
Langhammer Walter INC
License #913647 · B
Grade A · Excellent
Contra Costa Painting INC
License #625942 · C33
Grade A · Excellent
Cornell Landscaping & Maintenance
License #626607 · C27
Grade A · Excellent
L D Strobel CO INC
License #631117 · B
Grade A · Excellent
Xact Pool & Spa
License #679970 · D35
Grade A · Excellent
Remcon INC
License #667702 · B
Grade A · Excellent
Aaa Water Systems INC
License #674303 · C55
Grade A · Excellent
Drywall Solutions INC
License #800233 · C-9
Grade A · Excellent
Mce Corporation
License #439295 · A
Grade A · Excellent
B B S Masonry
License #774488 · C29
Grade A · Excellent
Griffin/swinerton a Joint Venture
License #934678 · B
Grade A · Excellent
Mechanical Insulation Services Incorporated
License #457391 · C-2
Grade A · Excellent
Ferriera's Roofing
License #702717 · C39
Grade A · Excellent
New Look Painting & Decorating INC
License #448581 · C33
Grade A · Excellent
Statewide Construction
License #726721 · B
Grade A · Excellent
Preferred Plumbing & Drain
License #848878 · A
Grade A · Excellent
Griffin Patrick P Plastering
License #733612 · C35
Grade A · Excellent
Moura Donald J Construction
License #459737 · B
Grade A · Excellent
Diablo Custom Screen
License #739884 · B
Grade A · Excellent
Action Glass
License #714599 · C17
Grade A · Excellent
Engineered Construction Services CORP
License #715004 · A
Grade A · Excellent
Elliott & Son Roofing
License #528046 · C39
Grade A · Excellent
T - 1 Electric INC
License #928331 · C10
Grade A · Excellent
Cox Commercial Flooring INC
License #533433 · C15
Grade A · Excellent
When hiring a contractor in Concord, California, due diligence matters. The contractors listed above have been verified against multiple government databases and achieved Safety Scores of 85 or higher—placing them among the most compliant contractors in the area.
Our Safety Score considers:
While a high Safety Score is a strong indicator of a reputable contractor, we always recommend getting multiple quotes, checking references, and verifying the contractor is licensed for your specific type of project.
Safety Scores are calculated based on publicly available government records and are updated weekly. For official verification, check directly with CSLB at cslb.ca.gov.