California › Alameda County › General Building & ADU › Castro Valley

Licensed general contractors and ADU builders in Castro Valley

238 contractors with a Castro Valley mailing address hold an active (CLEAR) CSLB B General Building license in CSLB's license file dated Oct 20, 2026. Get quotes from up to 3 of them →

A B General Building license covers jobs with two or more unrelated trades, like an ADU, an addition or a remodel. A B contractor can't take a stand-alone plumbing, electrical or roofing job unless they also hold that specialty license or subcontract it to someone who does.
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All 238 licensed general contractors and ADU builders

Order: A–Z by business name (neutral, stated). Showing 1–100.
123 GARAGE DOOR
B · also D-28 · Lic. #1088677 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
2Y CONSTRUCTION INC
B · Lic. #997875 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
A P C CONSTRUCTION
B · also C-10 · Lic. #880085 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
A1 GUTIERREZ CONSTRUCTION
B · Lic. #1056598 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
AAA PLUMBING & REMODELING INC
B · also A, C-36, C-42 · Lic. #1052769 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
AARON LERNER GENERAL CONTRACTOR
B · Lic. #927537 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ALEX CONSTRUCTION
B · Lic. #958486 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ALL ENVIRONMENTAL CO
B · also ASB, C-33 · Lic. #808087 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ALL STAR TEAM CONSTRUCTION
B · Lic. #962122 · Castro Valley 94578
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ALLPRO CONSTRUCTION
B · Lic. #939186 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
AMERICAN RIVER FRAMING LLC
B · Lic. #746425 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ANDREW VINCENT BUILDER
B · Lic. #1130039 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ANXIN ASSOCIATES CONSTRUCTION INC
B · Lic. #971649 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ANYKIND CONSTRUCTION
B · Lic. #677394 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ART LINE CONSTRUCTION
B · Lic. #1134503 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ATB CONSTRUCTION
B · Lic. #1151339 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
B A MORRISON
B · also C-20 · Lic. #603913 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
BAEK CONSTRUCTION
B · also C-36 · Lic. #1002450 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
BANDERA CONSTRUCTION COMPANY
B · Lic. #813872 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
BAR IN THE WOODS CONSTRUCTION
B · Lic. #469701 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
BARRERA'S BUILDERS
B · Lic. #903233 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
BAY AREA BUILDERS
B · Lic. #896486 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
BAY FULL CONSTRUCTION
B · Lic. #1099771 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
BD CONSTRUCTION
B · Lic. #1051563 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
BEBE CONSTRUCTION COMPANY
B · Lic. #888603 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
BENITEZ BUILDER
B · Lic. #1061251 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
BILL SIEM CONSTRUCTION
B · Lic. #866184 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
BINGO BUILDERS
B · Lic. #1110685 · Castro Valley 94552
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
BOSTOK & WILLIAMS A PARTNERSHIP
B · also D-24 · Lic. #795324 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
BRANDON CHOI CONSTRUCTION
B · Lic. #1150927 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
BRIAN BECK CONSTRUCTION
B · Lic. #869512 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
BROADEDGE BUILDERS LLC
B · Lic. #1161729 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
BROSTROM CONSTRUCTION
B · Lic. #895980 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
BRUCE SIN CONSTRUCTION
B · Lic. #813392 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
BUCHMANN INC
B · also A, C-10, C-36, C-46 · Lic. #1004484 · Castro Valley 94546
Workers' comp: via leasing/temp firm
✓License Verified CSLB file · Oct 20, 2026
C R F BUILDERS INC
B · Lic. #926072 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
C S Z CONSTRUCTION COMPANY
B · Lic. #984433 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
CAD COM
B · Lic. #931582 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
CAISTOR CONSTRUCTION
B · Lic. #725563 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CAMELLO INC
B · Lic. #790164 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CARMEL CONSTRUCTION COMPANY
B · Lic. #858096 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
CELIS CONSTRUCTION
B · Lic. #963254 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CHI CONSTRUCTION COMPANY
B · Lic. #552583 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
CHRISTOPHER EMANUEL DEL ROSARIO
B · Lic. #872088 · Castro Valley 94552
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CLAMAR'S ALL PHASE CONSTRUCTION INC
B · Lic. #1066886 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
CLAMAR'S PRECISIONS BUILDS
B · Lic. #1094844 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
CLIFF OLSON CONSTRUCTION
B · Lic. #529277 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
COBRA HOME IMPROVEMENT INC
B · Lic. #1112414 · Castro Valley 94552
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
COMPLETE CONST CO
B · Lic. #557164 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CRAWFORD INCORPORATED
B · Lic. #904632 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
CROSSROADS RESTORATION LLC
B · Lic. #1158985 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CUNNINGHAM CONSTRUCTION
B · Lic. #955393 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
D & M BUILDERS
B · Lic. #797083 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
D M C CONSTRUCTION
B · Lic. #918194 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DAMON BLETH DBA D B TILE
B · also C-54 · Lic. #821370 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DAVE'S INTERIOR CONSTRUCTION SPECIALIST
B · Lic. #782005 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DAVID DEAN GIBBS BUILDER
B · also C-10 · Lic. #845636 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DAVID GELLES
B · Lic. #935402 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DAVIS LEVI CONSTRUCTION INC
B · Lic. #1132903 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
DAY GROUP BUILDERS LLC
B · Lic. #1107047 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
DEEP AND HIGH DEVELOPMENT
B · also ASB · Lic. #927220 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DIABLO MOUNTAIN CONSTRUCTION LLC
B · Lic. #1101794 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DICH CONSTRUCTION
B · Lic. #1033784 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DIRECT SALES FLOORS
B · also C-15 · Lic. #424404 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
DOMINIC MARTIN DBA D W CONSTRUCTION
B · Lic. #1098104 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DONAHUE BACKHOE & CONSTRUCTION CO
B · Lic. #504109 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DOOR SPECIALIST
B · Lic. #852259 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DUARTE & SONS CONSTRUCTION & PAINTING
B · also C-33 · Lic. #959065 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
EAST BAY CONSTRUCTION
B · Lic. #650791 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
EAST BAY RESTORATION
B · also ASB, C-22 · Lic. #827881 · Castro Valley 94552
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
EB HOME CONSTRUCTION
B · Lic. #1112791 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ECOL DEVELOPMENT INC
B · Lic. #897153 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
EDWIN T CROLL
B · also C-10 · Lic. #368028 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ELITE CONSTRUCTION
B · Lic. #845888 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ELITE HOME REMODELING
B · Lic. #970250 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
EMILIO FORNI CONSTRUCTION & REMODELING
B · also C-33 · Lic. #736135 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ENVIRONMENTAL IN OVATIONS CORPORATION
B · also ASB, C-10, HAZ · Lic. #955826 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ERIC ARCHULETTA GENERAL CONTRACTOR
B · Lic. #787800 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ERICSON M VEGA CONSTRUCTION
B · Lic. #1144261 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
FINE BUILD CONSTRUCTION INC
B · Lic. #999104 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
FRENCHPARK FLOORING AND MAINTENANCE LLC DBA FRENCHPARK FLOORS
B · also C-15 · Lic. #1059100 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
G CRONK CONSTRUCTION
B · Lic. #988109 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
G R V HOMEIMPROVEMENT
B · also C-10 · Lic. #1025118 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
G X CONSTRUCTION CO
B · Lic. #1008387 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GAXL GENERAL CONSTRUCTION INC
B · also C-36 · Lic. #1037436 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GEM HOME IMPROVEMENTS INC
B · also C-15 · Lic. #1051153 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GEORGIOS LAMPROPOULOS
B · Lic. #992652 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GRANDEUR CONSTRUCTION INC
B · Lic. #596556 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
GRIFFIN CONSTRUCTION SERVICES
B · Lic. #1029762 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
H 3 D HOME CONSTRUCTION
B · Lic. #977770 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
H B M CONSTRUCTION
B · Lic. #991414 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
H I S HOME IMPROVEMENT SERVICE
B · Lic. #623902 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
H JAMES KNUPPE
B · Lic. #214462 · Castro Valley 94552
Workers' comp: via leasing/temp firm
✓License Verified CSLB file · Oct 20, 2026
HAMILTON EXTERIORS
B · Lic. #1078806 · Castro Valley 94546
Workers' comp policy on file
Active — CSLB flag: bond payment pending; "Pending IFS"; suspension pending, dated 12/03/2026
HAN LIN XU
B · Lic. #903834 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HB CONSTRUCTION SERVICES INC
B · Lic. #1001862 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HECTOR'S CONSTRUCTION COMPANY
B · Lic. #709208 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HERITAGE CONSTRUCTION
B · Lic. #818503 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
HUANG'S BUILDERS INC
B · Lic. #1094286 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HUIWEN ZHU
B · Lic. #1161898 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026