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Licensed general contractors and ADU builders in Castro Valley · page 2 of 3

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 101–200.
INTEGRITY CONSTRUCTION & FLOORING
B · also C-15 · Lic. #777898 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
IONIAN BUILDERS LLC
B · Lic. #1050163 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
IONUT CONSTRUCTION
B · Lic. #1026785 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ISAAC RION CONSTRUCTION
B · Lic. #1136338 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
J & A CONSTRUCTION
B · Lic. #974834 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
J A M CONSTRUCTION
B · Lic. #1058356 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
J UBHI CONSTRUCTION
B · Lic. #883659 · Castro Valley 94578
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
J V C CONSTRUCTION
B · Lic. #604531 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
J&V PRO CONSTRUCTION AND REMODELING
B · Lic. #1141138 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
JACK D OLSON DESIGN & CONSTRUCTION CO
B · also C-12 · Lic. #374770 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JHR FRAMING
B · Lic. #1111496 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
JHT CONSTRUCTION SERVICES INC
B · Lic. #1157139 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JING ZHANG
B · Lic. #1145548 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JOHN J LANGON JR
B · also C-33 · Lic. #283657 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
JOHN JENSEN
B · also C-15 · Lic. #547028 · Castro Valley 94546
Workers' comp: exempt
Active — CSLB flag: renewal received
JOHN L FRANCO CONSTRUCTION
B · Lic. #723550 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JOHN MC DONAGH BUILDERS AND ENERGY SYSTEMS
B · also C-4, C-10, C-27, C-33… · Lic. #422946 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JORDAN CALLIER CONSTRUCTION
B · Lic. #894179 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JOSEPH LANGON
B · Lic. #757428 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JY GENERAL CONSTRUCTION
B · Lic. #1159907 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
K M S CONSTRUCTION
B · Lic. #988014 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
KAITZ CONSTRUCTION GENERAL CONTRACTOR
B · Lic. #938624 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
KARAJEN CONSTRUCTION SERVICES
B · Lic. #676791 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
KELLY HUSKA CONTRACTING
B · also C-33 · Lic. #506830 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
KEN A ROSE
B · Lic. #423722 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
KEY ONE CONSTRUCTION INC
B · Lic. #1155498 · Castro Valley 94552
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
KILLIAN CONSTRUCTION
B · Lic. #738955 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
KM SQUARED
B · Lic. #1102264 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
LANGON BUILDING & DEVELOPING
B · Lic. #765364 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
LICO'S CONTRACTING
B · Lic. #1021433 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LL CONSTRUCTION
B · Lic. #1087278 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
LORETO CONSTRUCTION SERVICES
B · Lic. #866213 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
LU'S CONSTRUCTION
B · Lic. #871211 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
LUCAS ILIE CONSTRUCTION
B · Lic. #1020308 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
LUIS W YAN
B · Lic. #939755 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LYONS CONSTRUCTION
B · Lic. #761972 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
M A SERVICES GENERAL CONTRACTING
B · Lic. #759101 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
M B DEVELOPMENT
B · Lic. #778837 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
M B R
B · Lic. #457961 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
M C R CONSTRUCTION
B · Lic. #729668 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
M J KNUPPE DEVELOPMENT COMPANY
B · Lic. #742847 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
M W C & ASSOCIATES
B · Lic. #398440 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
MARIO MENDOZA
B · Lic. #888992 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
MARK A HEMENEZ GENERAL CONTRACTOR
B · Lic. #614891 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
MARK SCHANTZ
B · Lic. #689172 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
MATTHIES CONSTRUCTION
B · Lic. #1102199 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
MENA CONSTRUCTION
B · Lic. #1092706 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
MERKOURIS CONSTRUCTION INC
B · also C-10, C-33 · Lic. #464532 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
METACORE CONSTRUCTION & ROOFING INC
B · also C-39 · Lic. #1126625 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
MICHAEL GARETH SMITH
B · Lic. #1018172 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
MIKECO CONSTRUCTION COMPANY
B · Lic. #1020142 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ML CONSTRUCTION
B · also A · Lic. #1089551 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
MMW CONSTRUCTION INC
B · Lic. #1158511 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
MNM BUILDERS INC
B · Lic. #1029642 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
MORNINGSIDE BUILDERS
B · also C-12 · Lic. #864558 · Castro Valley 94551
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
NEW GENERATION CONSTRUCTION & REMODELING INC
B · Lic. #1000571 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
NICHOLAS DRABEC
B · Lic. #639451 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
NORTHUP CONSTRUCTION INC
B · Lic. #265315 · Castro Valley 94552
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
OCEAN REMODEL INC
B · Lic. #1120751 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
OLSEN CONSULTING
B · Lic. #1128663 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ON POINT CONSTRUCTION
B · also C-33 · Lic. #949627 · Castro Valley 94552
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
OSMAN CONSTRUCTION INC
B · Lic. #1149250 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
OUR HANDY HELPER
B · Lic. #1145235 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
OWEN
B · also A, C-42 · Lic. #395410 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
P F P BUILDERS INC
B · Lic. #1162212 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
PACIFIC BAY REMODELING
B · Lic. #1076321 · Castro Valley 94542
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
PARAGON ELECTRIC
B · also C-10 · Lic. #261291 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
PAYNE'S GENERAL CONTRACTING
B · Lic. #800246 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
PERFECT HOME BUILDERS INC
B · Lic. #1058032 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
PETE RADOVICH CONSTRUCTION
B · Lic. #449887 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
PETERS CONSTRUCTION
B · Lic. #993709 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
PINON CUSTOM CONSTRUCTION INC
B · Lic. #1048101 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
PREFERRED QUALITY HOME IMPROVEMENTS
B · Lic. #964396 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
PREMIUM BUILDERS INC
B · Lic. #767321 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
PRO ATTIC RESTORATION INC
B · Lic. #1039440 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
PRO-TECH MAINTENANCE & REPAIR
B · Lic. #596933 · Castro Valley 94552
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
PROPERTY PROS CONSTRUCTION INC
B · also C-10 · Lic. #889146 · Castro Valley 94552
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
PUNJAB CONSTRUCTION
B · Lic. #689179 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
QUIXOTIC CONSTRUCTION
B · Lic. #940742 · Castro Valley 94578
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
R A CUSTOM SIDING
B · also C-33, D-41 · Lic. #1007444 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
R E TIMM CONSTRUCTION INC
B · Lic. #1019087 · Castro Valley 94552
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
R J H CONSTRUCTION
B · Lic. #517983 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
R S V P DEVELOPMENT & CONSTRUCTION
B · Lic. #660902 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
RALPH J NICE
B · Lic. #549951 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
RAYCO CONSTRUCTION SERVICES INC
B · Lic. #809022 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
RAYCO PAINTING & CONSTRUCTION INC
B · also C-33 · Lic. #1029239 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
RED DOOR RESTORATION INC
B · Lic. #916469 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
REED'S CRAFTMANSHIP
B · also C-6, C-54 · Lic. #394444 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
REIS CONSTRUCTION COMPANY LLC
B · Lic. #1144162 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
RENOVATIONS PLUS
B · Lic. #857337 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
RIC KITCHEN + BATH SHOWROOM
B · also C-9 · Lic. #602812 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ROBERT DEEN CONSTRUCTION
B · Lic. #513685 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ROBERT FAZZIO CONSTRUCTION
B · Lic. #876000 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
RYAN PHELPS CONSTRUCTION
B · Lic. #829520 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
S & C ENTERPRISES
B · also A · Lic. #769424 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
S R BLACKSTONE CONSTRUCTION INC
B · Lic. #520142 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
S WALT CONSTRUCTION
B · Lic. #930552 · Castro Valley 94546
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
SAM CHIN
B · Lic. #857303 · Castro Valley 94552
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
SIGMA HVAC & ELECTRIC INC
B · also C-10, C-20 · Lic. #1128583 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
SILVA JAMES P CONSTRUCTION INC
B · Lic. #530036 · Castro Valley 94546
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026