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Nearby Plumber — nearbyplumber.com · License-verified plumbing directory · printed Oct 22, 2026
California › Contra Costa County
Contra Costa County, California

Plumbers in Contra Costa County, California.

499 license-verified plumbers are filed in Contra Costa County on CSLB records. The 100 with the strongest verification are listed below. Every listing is checked against CSLB contractor license records.

Updated October 18, 2026 · listings checked against CSLB records October 20, 2026

License data from the Contractors State License Board (cslb.ca.gov), published on its Public Data Portal, copied on the date shown. Neither this site nor the information as presented here is endorsed by the State of California or any state agency.

Contra Costa County, at a glance
All California permit guides →
License-verified plumbers filed here
499
Listed on this page
100
Providers

Contra Costa County plumbers, verified first.

Each listing shows how it matched CSLB records, with its license number and phone. Anything we could not match is labeled as such, never badged.

How listings are labeled
  • ✓ Tier 1 — License-matched
  • Tier 2 — Roster-matched
  • Tier 3 — Directory-sourced labeled “Unverified”
How we verify →

Showing 100 of 499 license-verified plumbers filed in Contra Costa County, highest verification tier first.

1
1 Tom Plumber Concord ✓ CSLB Verified
C-36 Plumbing · 1154967 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 922-0594 View profile
3G
3G Plumbing ✓ CSLB Verified
C-36 Plumbing · 1144867 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 480-9844 View profile
99
99 North Construction & Plumbing Inc. ✓ CSLB Verified
C-36 Plumbing · 1044733 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(415) 650-6503 View profile
99
99 North General Engineering ✓ CSLB Verified
C-36 Plumbing · 1112114 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(415) 650-6503 View profile
A
A & D Plumbing ✓ CSLB Verified
C-36 Plumbing · 959962 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 922-4770 View profile
A
A & R Plumbing and Drain Inc. ✓ CSLB Verified
C-36 Plumbing · 1147074 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 609-2804 View profile
A
A and D Radiant & Plumbing Tech ✓ CSLB Verified
C-36 Plumbing · 872184 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 270-5487 View profile
A
A D Family Plumbing Services ✓ CSLB Verified
C-36 Plumbing · 1098228 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 512-5029 View profile
A
A M A C Construction & Restoration ✓ CSLB Verified
C-36 Plumbing · 796327 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 356-2619 View profile
A
A Meadows Construction Inc. ✓ CSLB Verified
C-36 Plumbing · 711024 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 625-4951 View profile
A
A Plus Plumbing ✓ CSLB Verified
C-36 Plumbing · 848199 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 383-8499 View profile
A
A to Z Plumbing & Heating Services Inc. ✓ CSLB Verified
C-36 Plumbing · 683883 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 359-8870 View profile
A-
A-1 Pro Construction LLC ✓ CSLB Verified
C-36 Plumbing · 1089245 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 236-0776 View profile
A-
A-Z Plumbing Inc. ✓ CSLB Verified
C-36 Plumbing · 1103824 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 399-7779 View profile
A1
A1 Phoenix Plumbing Inc. ✓ CSLB Verified
C-36 Plumbing · 1071656 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 380-1114 View profile
AB
ABC Construction ✓ CSLB Verified
C-36 Plumbing · 871880 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 455-1806 View profile
AB
Absolute Plumbing and Drain ✓ CSLB Verified
C-36 Plumbing · 890248 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 676-1900 View profile
AC
Ace’s Plumbing ✓ CSLB Verified
C-36 Plumbing · 544377 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 260-6695 View profile
AC
Acestar Plumbing ✓ CSLB Verified
C-36 Plumbing · 1000763 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 837-8999 View profile
AD
Advanced Plumbing & Drain Master ✓ CSLB Verified
C-36 Plumbing · 1017445 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 732-3351 View profile
AD
Advanced Trenchless Inc. ✓ CSLB Verified
C-36 Plumbing · 971074 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 932-4023 View profile
AI
Air – Con Mechanical Services Inc. ✓ CSLB Verified
C-36 Plumbing · 636428 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 279-3330 View profile
AI
Air Synergy Inc. ✓ CSLB Verified
C-36 Plumbing · 1054064 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 510-2037 View profile
AL
Al’s Plumbing Works ✓ CSLB Verified
C-36 Plumbing · 1095373 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 557-6868 View profile
AL
Alansi’s Plumbing Inc. ✓ CSLB Verified
C-36 Plumbing · 968129 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(415) 497-8700 View profile
AL
Albert D Seeno Jr. ✓ CSLB Verified
C-36 Plumbing · 281273 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 671-7711 View profile
AL
Albright Plumbing ✓ CSLB Verified
C-36 Plumbing · 858118 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 216-8290 View profile
AL
All Bay Area Plumbing Inc. ✓ CSLB Verified
C-36 Plumbing · 867116 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(650) 722-0944 View profile
AL
All Bay Heating Air Conditioning & Construction Inc. ✓ CSLB Verified
C-36 Plumbing · 805473 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 288-9223 View profile
AL
All Bay Rooting and Plumbing Services ✓ CSLB Verified
C-36 Plumbing · 821259 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 325-7027 View profile
AL
All Green Systems Go ✓ CSLB Verified
C-36 Plumbing · 878503 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 284-3695 View profile
AL
All Water Heaters & Plumbing LLC ✓ CSLB Verified
C-36 Plumbing · 1143044 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 301-7890 View profile
AL
Allied Propane Service Inc. ✓ CSLB Verified
C-36 Plumbing · 715561 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 237-7077 View profile
AL
Allied Propane Transportation Inc. ✓ CSLB Verified
C-36 Plumbing · 1017928 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 237-7077 View profile
AL
Almighty Plumbing ✓ CSLB Verified
C-36 Plumbing · 1055136 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 318-4448 View profile
AL
Alpha Construction Company ✓ CSLB Verified
C-36 Plumbing · 973282 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(415) 889-3504 View profile
AM
American Elite Professional Services Group Inc. ✓ CSLB Verified
C-36 Plumbing · 885988 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 303-8197 View profile
AM
American Pipe Bursting LLC ✓ CSLB Verified
C-36 Plumbing · 1039462 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 586-7970 View profile
AM
American Plumbing ✓ CSLB Verified
C-36 Plumbing · 418845 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 754-4990 View profile
AM
Americana Plumbing Solutions Inc. ✓ CSLB Verified
C-36 Plumbing · 1131700 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 222-7678 View profile
AM
Amg Quality Plumbing and Rooter ✓ CSLB Verified
C-36 Plumbing · 1111297 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 261-6121 View profile
AM
Amn Plumbing Inc. ✓ CSLB Verified
C-36 Plumbing · 1049016 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 375-3127 View profile
AM
Amores Mechanical Inc. ✓ CSLB Verified
C-36 Plumbing · 1116926 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(415) 938-0808 View profile
AM
Amores Plumbing Company ✓ CSLB Verified
C-36 Plumbing · 562240 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(415) 823-4432 View profile
AN
Andiamo Plumbing ✓ CSLB Verified
C-36 Plumbing · 938192 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 876-1699 View profile
AN
Andrew Lee ✓ CSLB Verified
C-36 Plumbing · 882242 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(415) 531-3131 View profile
AN
Antioch Plumbing ✓ CSLB Verified
C-36 Plumbing · 455397 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 766-7449 View profile
AP
Aplus Plumbing ✓ CSLB Verified
C-36 Plumbing · 972915 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 453-7667 View profile
AQ
Aqua Duct Commercial Plumbing Inc. ✓ CSLB Verified
C-36 Plumbing · 1100777 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 595-1458 View profile
AQ
Aqua Systems Plumbing ✓ CSLB Verified
C-36 Plumbing · 895405 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(408) 881-4472 View profile
AR
Arellano Bay Construction ✓ CSLB Verified
C-36 Plumbing · 1111557 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 478-6095 View profile
AR
Arg Construction ✓ CSLB Verified
C-36 Plumbing · 967155 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 660-7332 View profile
AS
Aspect Power LLC ✓ CSLB Verified
C-36 Plumbing · 933699 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 798-5688 View profile
AT
Atd Plumbing Inc. ✓ CSLB Verified
C-36 Plumbing · 1129868 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 305-7679 View profile
B
B & H Plumbing & Home Services Inc. ✓ CSLB Verified
C-36 Plumbing · 994654 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 833-7110 View profile
B
B & H Services ✓ CSLB Verified
C-36 Plumbing · 948487 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 833-7110 View profile
BA
Balanz Inc. ✓ CSLB Verified
C-36 Plumbing · 976726 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 529-5261 View profile
BA
Barale Builders Inc. ✓ CSLB Verified
C-36 Plumbing · 970980 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 324-4520 View profile
BA
Bay Air Systems Inc. ✓ CSLB Verified
C-36 Plumbing · 450929 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 356-3000 View profile
BA
Bay Area Plumbing Pros Inc. ✓ CSLB Verified
C-36 Plumbing · 1156440 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(415) 410-7757 View profile
BA
Bay City Mechanical Incorporated ✓ CSLB Verified
C-36 Plumbing · 645126 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 233-7000 View profile
BA
Bay City Mechanical Service Inc. ✓ CSLB Verified
C-36 Plumbing · 1149263 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 233-7000 View profile
BA
Bay Plumbing & Rooter LLC ✓ CSLB Verified
C-36 Plumbing · 929458 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 948-8442 View profile
BA
Bayworks Plumbing Inc. ✓ CSLB Verified
C-36 Plumbing · 1025208 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(415) 571-3050 View profile
BD
BDS Plumbing Inc. ✓ CSLB Verified
C-36 Plumbing · 713183 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 947-1237 View profile
BE
Beaver’s Construction Company ✓ CSLB Verified
C-36 Plumbing · 327474 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 303-9169 View profile
BE
Bel Air Mechanical Inc. ✓ CSLB Verified
C-36 Plumbing · 844161 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 609-9655 View profile
BE
Belfast Plumbing ✓ CSLB Verified
C-36 Plumbing · 906211 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 457-5423 View profile
BE
Bells Plumbing Solutions ✓ CSLB Verified
C-36 Plumbing · 1147956 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(662) 260-2646 View profile
BE
Better Home Tiling Services ✓ CSLB Verified
C-36 Plumbing · 1028671 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(650) 576-3951 View profile
BI
Big Mac Construction ✓ CSLB Verified
C-36 Plumbing · 1003333 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 383-3365 View profile
BI
Big Pipe Mechanical ✓ CSLB Verified
C-36 Plumbing · 1055935 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(415) 767-6008 View profile
BL
Blue Wrench Plumbing Inc. ✓ CSLB Verified
C-36 Plumbing · 1060381 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 222-5941 View profile
BO
Bono A J Plumbing ✓ CSLB Verified
C-36 Plumbing · 807390 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 676-1080 View profile
BO
Boscolai Construction ✓ CSLB Verified
C-36 Plumbing · 1120060 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(415) 636-8999 View profile
BR
Brentwood Plumbing Inc. ✓ CSLB Verified
C-36 Plumbing · 656324 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 634-3800 View profile
BR
Brett Martin Stom ✓ CSLB Verified
C-36 Plumbing · 687252 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 766-8242 View profile
BR
Brian Feeney Plumbing ✓ CSLB Verified
C-36 Plumbing · 771122 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(415) 302-5275 View profile
BR
Briones Plumbing ✓ CSLB Verified
C-36 Plumbing · 1044640 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 595-0197 View profile
BU
Burtt Construction Services ✓ CSLB Verified
C-36 Plumbing · 955030 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 540-0155 View profile
C
C & H Plumbing Corporation ✓ CSLB Verified
C-36 Plumbing · 697836 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(707) 334-4734 View profile
C
C B A Home Building Services ✓ CSLB Verified
C-36 Plumbing · 589422 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(702) 587-2209 View profile
C
C D Plumbing Construction ✓ CSLB Verified
C-36 Plumbing · 804330 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 639-9939 View profile
C
C De Leon Plumbing Co. ✓ CSLB Verified
C-36 Plumbing · 569370 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 385-3877 View profile
CA
Cal-Delta Plumbing ✓ CSLB Verified
C-36 Plumbing · 1122957 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 234-6941 View profile
CA
Cali Plumbing & Rooter LLC ✓ CSLB Verified
C-36 Plumbing · 1141194 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 522-9750 View profile
CA
Cali Water Heater & HVAC ✓ CSLB Verified
C-36 Plumbing · 1151901 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 723-1190 View profile
CA
Captain Rooter and Plumbing ✓ CSLB Verified
C-36 Plumbing · 983576 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(888) 487-1431 View profile
CA
Carlos Insulation Inc. ✓ CSLB Verified
C-36 Plumbing · 1013211 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 207-9469 View profile
CA
Carrera Vallin Plumbing Inc. ✓ CSLB Verified
C-36 Plumbing · 1154561 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 867-7259 View profile
CA
Castro Plumbing ✓ CSLB Verified
C-36 Plumbing · 934586 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 451-8958 View profile
CD
CDM Sky Plumbing Inc. ✓ CSLB Verified
C-36 Plumbing · 1109182 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 470-7307 View profile
CE
Central Service Plumbing Company ✓ CSLB Verified
C-36 Plumbing · 602758 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 799-7708 View profile
CH
Chase Rooter & Plumbing Inc. ✓ CSLB Verified
C-36 Plumbing · 965957 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 567-9000 View profile
CH
Christy Plumbing ✓ CSLB Verified
C-36 Plumbing · 888948 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 776-4835 View profile
CI
City Mechanical Inc. ✓ CSLB Verified
C-36 Plumbing · 622065 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 724-9088 View profile
CL
Class A Drain & Plumbing Inc. ✓ CSLB Verified
C-36 Plumbing · 1102206 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(415) 342-6382 View profile
CL
Clear Plumbing ✓ CSLB Verified
C-36 Plumbing · 916424 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(510) 778-8800 View profile
CL
Clear Water Mechanical Plumbing & Underground ✓ CSLB Verified
C-36 Plumbing · 931971 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 679-3100 View profile
CO
Coats Plumbing ✓ CSLB Verified
C-36 Plumbing · 899428 · Active — checked Oct 20, 2026

Filed in Contra Costa County

(925) 352-5115 View profile

iOrganic order is verified-first then A–Z and is never sold; featured slots, when they exist, are labeled. Methodology

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Permits

Plumbing permits in Contra Costa County: who issues them.

Plumbing permit fees, forms and process

Whether a job needs a plumbing permit is the call of the building department of the city or county with jurisdiction, and a city or county that requires one has each applicant give their CSLB license number or say why they are exempt. One exemption is the owner-builder: an owner improving their own property who does all the work personally, or through their own employees paid wages only, with none of it intended or offered for sale (B&P Code § 7044).

Permit guides here are written per city, because that is who issues them.

All California permit guides

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