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

Licensed general contractors and ADU builders in Castro Valley · page 3 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 201–238.

SITU CONSTRUCTION INC

B · Lic. #987813 · Castro Valley 94546

Workers' comp policy on file

✓License Verified CSLB file · Oct 20, 2026

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SLB CONSTRUCTION INC

B · Lic. #575742 · Castro Valley 94546

Workers' comp policy on file

✓License Verified CSLB file · Oct 20, 2026

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SPLASH OF CLASS PAINTING AND CONSTRUCTION

B · also A, C-27, C-33 · Lic. #1063848 · Castro Valley 94552

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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STATEWIDE SYSTEMS INC

B · also C-35 · Lic. #962468 · Castro Valley 94546

Workers' comp policy on file

✓License Verified CSLB file · Oct 20, 2026

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STEVEN L PHILLIPS CONSTRUCTION INC DBA PHILLIPS CONSTRUCTION

B · also A · Lic. #442048 · Castro Valley 94546

Workers' comp policy on file

✓License Verified CSLB file · Oct 20, 2026

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SU CONSTRUCTION STUDIO INC

B · Lic. #1083081 · Castro Valley 94546

Workers' comp policy on file

✓License Verified CSLB file · Oct 20, 2026

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SUMMIT FIREPLACE & GRILLS

B · also D-34 · Lic. #943469 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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SUN KEE CONSTRUCTION

B · Lic. #639436 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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SUNDAY BUILDERS INC

B · Lic. #1112165 · Castro Valley 94546

Workers' comp policy on file

✓License Verified CSLB file · Oct 20, 2026

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SYUFY BUILDERS

B · Lic. #530377 · Castro Valley 94546

Workers' comp policy on file

✓License Verified CSLB file · Oct 20, 2026

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TEN NINE CONSTRUCTION

B · also C-10 · Lic. #1142427 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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TOP TIER BUILDING SERVICES INC

B · Lic. #1146790 · Castro Valley 94546

Workers' comp policy on file

✓License Verified CSLB file · Oct 20, 2026

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TRANSFORMATION CONSTRUCTION & DESIGN INC

B · Lic. #1109820 · Castro Valley 94546

Workers' comp policy on file

✓License Verified CSLB file · Oct 20, 2026

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TWO14 CONSTRUCTION INC

B · Lic. #1094294 · Castro Valley 94552

Workers' comp policy on file

Active — CSLB flag: workers' comp suspension pending

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U-LAND CONSTRUCTION INC

B · Lic. #986749 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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URBAN ASCENT CONSTRUCTION LLC

B · Lic. #1139582 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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VARASTEH CONSTRUCTION

B · Lic. #616876 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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VARIOUS ENERGY

B · also A, C-10, C-20 · Lic. #1145723 · Castro Valley 94546

Workers' comp policy on file

Active — CSLB flag: disciplinary bond filed

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VICTORY CONSTRUCTION INC

B · Lic. #735323 · Castro Valley 94552

Workers' comp policy on file

✓License Verified CSLB file · Oct 20, 2026

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VIKING CONSTRUCTION & HANDYMAN SERVICES

B · Lic. #1100686 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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VILLA ALTA CONSTRUCTION INC

B · Lic. #1155358 · Castro Valley 94546

Workers' comp policy on file

✓License Verified CSLB file · Oct 20, 2026

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VILLEGAS CONSTRUCTION SERVICES

B · Lic. #902833 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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WATER HEATER COMPANY

B · also C-36 · Lic. #987574 · Castro Valley 94552

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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WAYNE'S CONSTRUCTION CO

B · Lic. #986343 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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WELCH CONSTRUCTION

B · Lic. #605159 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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WEST SIDE DEVELOPMENT INC

B · Lic. #1061831 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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WESTEREN CONSTRUCTION LLC

B · Lic. #631458 · Castro Valley 94546

Workers' comp policy on file

✓License Verified CSLB file · Oct 20, 2026

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WILDER VENTURES

B · Lic. #1056116 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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WILSON CONSTRUCTION

B · Lic. #766739 · Castro Valley 94552

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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WILSON YOUNG

B · Lic. #623819 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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WING'S ROOFING INC

B · also C-39 · Lic. #698113 · Castro Valley 94546

Workers' comp policy on file

✓License Verified CSLB file · Oct 20, 2026

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WOODBERRY DEVELOPMENT COMPANY

B · Lic. #600258 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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WU CONSTRUCTION

B · Lic. #863143 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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XOTEK INC

B · Lic. #700664 · Castro Valley 94546

Workers' comp policy on file

✓License Verified CSLB file · Oct 20, 2026

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YEE CHEUNG

B · Lic. #855650 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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ZACHARY BOELSTERLI

B · Lic. #1077803 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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ZIFU PROPERTY CONSTRUCTION

B · Lic. #1126513 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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ZOLIE BUILDERS INC

B · Lic. #1107148 · Castro Valley 94546

Workers' comp: exempt

✓License Verified CSLB file · Oct 20, 2026

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Describe the job once. When quote matching opens, it goes to no more than 3 License Verified contractors who hold the right license, and you see exactly who.

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How this list works

Everyone here holds an active CSLB license for this trade and has a Castro Valley address on file. Nobody paid to be listed. The order is A–Z and never changes for money. Featured spots above are ads and are labeled. A license with a CSLB flag shows the flag instead of the green stamp.

Before you sign, check the license yourself at CSLB. How to check a contractor's license →

Other trades in Castro Valley

Plumbing Electrical HVAC Roofing Landscaping Painting

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