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Licensed Limited Specialty Contractors in Concord, California

Updated November 1, 2026 from CSLB's public license file · C-61 Limited Specialty

  • 98licensed limited specialty contractors
  • 93active (Clear)
  • 5.1%with a suspension
  • 33.7%workers' comp exempt
  • 16.5 yrsmedian time licensed
  • 59.2%corp / LLC / partnership (40.8% sole owner)
  • 6new in the last 12 months
  • —change tracking began November 1, 2026

There are 98 limited specialty contractors based in Concord in CSLB's current file. 93 (94.9%) have a Clear status as of November 1, 2026.

33.7% report a workers' comp exemption, 2.5 points lower than the statewide figure for limited specialty contractors (36.2%), so many of these businesses say they have no employees. The share with a suspension (5.1%) is close to the Contra Costa County rate for the same license (4.2%).

Experience varies: 64.3% have been licensed 10+ years and 6 are new this year (median 16.5 years, vs 13 statewide).

C-61 licenses are always paired with a D-subcategory that names the specific trade, so check the "D" code on each profile. See the C-61 Limited Specialty guide for what the license covers.

How to check a limited specialty contractor's license in Concord

  1. Find the business in the list below, or search all 98 Concord listings, and open its profile. You want a Clear status and the C-61 classification (a B license can also cover it as part of a multi-trade job).
  2. Re-check the same number on CSLB's Instant License Check the day you sign; our copy is refreshed weekly and 5.1% of Concord listings here already show a suspension.
  3. Get the bid and contract in writing with the license number on it. If the job tops $1,000 in labor and materials, a licensed limited specialty contractor is required by law. See the $1,000 rule.

50 of 98 limited specialty contractors in Concord

Concord limited specialty contractors sorted with Clear licenses first, then by years licensed. Badges reflect CSLB's file dated November 1, 2026, not a rating of anyone's work.

Licensed limited specialty contractors in Concord
Business nameLicense #StatusYearsWorkers' compBond
Swinerton Builders 92 Clear 97 Insured On file
Contra Costa Door CO 186913 Clear 67 Insured On file
Conco 199902 Clear 65 Insured On file
Advanced Office Systems INC 514521 Clear 39 Insured On file
Mortensen Roofing & Gutters INC 583533 Clear 36 Insured On file
Ron's Window Coverings 627753 Clear 35 Exempt On file
Stone Tree 629457 Clear 35 Insured On file
Conco Pumping 643402 Clear 34 Insured On file
R & S Erection of Concord INC 667038 Clear 33 Insured On file
Bay Area Doors 673243 Clear 33 Exempt On file
Xact Pool & Spa 679970 Clear 33 Insured On file
Rex Lock & Safe INC 691700 Clear 32 Insured On file
Tap Master INC 697696 Clear 32 Insured On file
Bailey's Window & Final Clean 701237 Clear 31 Exempt On file
All Clear Pools & Spa Maintenance 702710 Clear 31 Insured On file
Cornerstone Environmental Contractors INC 722253 Clear 30 Insured On file
Concord Drywall INC 729000 Clear 30 Insured On file
Hernandez and Associates 759554 Clear 27 Insured On file
Golden Stone Pavers 777507 Clear 26 Insured On file
Grout Solutions 786464 Clear 26 Exempt On file
Uribe Quality Construction 792189 Clear 25 Exempt On file
Absolute Best Care 810812 Clear 24 Insured On file
All Dry and Tidy 824150 Clear 23 Exempt On file
Schwartz Daniel J 829073 Clear 22 Exempt On file
Wallpaper Solutions 829843 Clear 22 Exempt On file
Tree Care of California 843402 Clear 22 Insured On file
D & D Learning Spaces 844527 Clear 22 Insured On file
DBA Screens of Northern California 845218 Clear 22 Insured On file
Superior Window Works 855238 Clear 21 Insured On file
Doors Done Right Construction 858288 Clear 21 Insured On file
Revel Environmental Manufacturing INC 857410 Clear 21 Insured On file
T N Telecom 860707 Clear 21 Exempt On file
Grady's Chimney Sweep & Serv 862548 Clear 21 Exempt On file
Letts Plumbing 862842 Clear 21 Insured On file
Building Services / System Maintenance Incorporated 870303 Clear 20 Insured On file
Ace Pool Service INC 874020 Clear 20 Insured On file
Pacific Maintenance Solutions 876963 Clear 20 Insured On file
Cadco Door & Window 890397 Clear 19 Insured On file
East Bay Door and Window INC 898655 Clear 19 Exempt On file
Simple Pavers INC 898156 Clear 19 Exempt On file
Eco Solar 899476 Clear 19 Insured On file
Donado Tree Services INC 905477 Clear 19 Insured On file
Pool and Spa Doctors INC 915857 Clear 18 Exempt On file
Cemcon INC 924461 Clear 18 Insured On file
Bayside Contractors 933876 Clear 17 Insured On file
Williamson Pools 935773 Clear 17 Exempt On file
Economy Medical Incorporated 942695 Clear 16 Insured On file
Some Assembly Required Premanufactured Installations 942135 Clear 16 Exempt On file
Sg Architectural Specialties 952416 Clear 16 Insured On file
Specialized Graphics INC 967185 Clear 15 Insured On file

See all 98 limited specialty contractors in Concord

Source: CSLB public data · Updated November 1, 2026 Status can change at any time. Verify on CSLB's Instant License Check.

Frequently asked questions

How many licensed limited specialty contractors are in Concord?

CSLB's current public file lists 98 limited specialty contractors with a Concord mailing address. 93 have a Clear status, and 89.8% show no issues at all in the file (no suspension, no pending action, bond on file, not near expiration).

What license does a limited specialty contractor need in California?

CSLB issues the C-61 Limited Specialty classification for this work. In Contra Costa County, 94.9% of Concord's holders are Clear right now. The license requirement starts at $1,000 per job (the minor-work rule).

How do I check a limited specialty contractor's workers' comp?

Each profile shows the workers' comp type, insurer and policy dates from CSLB's file. Among Concord limited specialty contractors, 33.7% are exempt (no employees), 65.3% insured and 1% without current coverage. Verify a policy with CSLB's insurer search (step by step).

Related

Limited Specialty Contractors in nearby cities

More limited specialty contractors lists in Contra Costa County

Other licensed trades in Concord

Guides