Registered address: 30958 SAN ANTONIO STREET, Hayward, CA 94544
969774 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
Alameda County, California
Windows in Alameda County, California
Browse 144 verified window & glass contractors registered across Alameda County, California (including Oakland, Fremont, Hayward, Berkeley). Every record is compiled from California Contractors State License Board (CA CSLB) public credential files under California Business and Professions Code Division 3, Chapter 9 (Contractors License Law: Class A, Class B General Building, and Class C Specialty Classifications with $25,000 Bond Requirement).
Official State Authority: California Contractors State License Board (CA CSLB) Official Registry · County Seat: Oakland
Municipalities in Alameda County (15)
Select a city or town in Alameda County to view local permit guidance and registered windows records:
144 windows records · Alameda County, CA
ChangePublic Directory Quality: Official CA CSLB license records across Alameda County · Zero sponsored order · Never sold as a lead · How our data works →
Show registered-address map (19 records on this page)13 approximate areas
Shaded areas mark approximate postal or city locations, not premises or service areas. Circle sizes are illustrative, not postal boundaries. Some records share the same area. Private addresses are excluded.
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Registered address: 14346 JUNIPER ST, San Leandro, CA 94579
970466 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
Registered address: 30806 SANTANA STREET, Hayward, CA 94544
972702 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
Registered address: 1555 PARK AVENUE SUITE A, Emeryville, CA 94608
983631 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
Registered address: 36263 DARVON ST, Newark, CA 94560
984701 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
Registered address: 123 WRIGHT BROTHERS AVE, Livermore, CA 94551
1017962 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
Registered address: 44075 FREMONT BLVD, Fremont, CA 94538
1070941 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
Registered address: 13672 E 14TH STREET, San Leandro, CA 94578
366062 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
Registered address: 5253 WINIFRED DRIVE, Castro Valley, CA 94546
921112 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
Registered address: 24941 SILVERTHORNE PLACE, Hayward, CA 94544
1097933 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
No public phone or website on record.
Registered address: 4963 SENECA PARK LOOP, Fremont, CA 94538
1150406 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
No public phone or website on record.
Registered address: 15808 HESPERIAN BLVD, San Lorenzo, CA 94580
813733 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
No public phone or website on record.
Registered address: 41934 CHRISTY STREET, Fremont, CA 94538
868051 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
No public phone or website on record.
Registered address: 8138 CAPWELL DRIVE, Oakland, CA 94621
956086 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
No public phone or website on record.
Registered address: 1225 LINCOLN STREET, Fairfield, CA 94533
995081 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
No public phone or website on record.
Registered address: 1521 MINTURN ST, Alameda, CA 94501
995789 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
No public phone or website on record.
Registered address: 462 HESTER ST, San Leandro, CA 94577
996482 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
No public phone or website on record.
Registered address: 636 EAGLE AVENUE, Alameda, CA 94501
997017 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
No public phone or website on record.
Registered address: 564 HUMBOLDT WY, Livermore, CA 94551
943882 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →
No public phone or website on record.
Frequently Asked Questions — Alameda County, CA
How are windows credentials verified in Alameda County, California?
Records across Alameda County are sourced directly from the California Contractors State License Board (CA CSLB). California Business and Professions Code Division 3, Chapter 9 (Contractors License Law: Class A, Class B General Building, and Class C Specialty Classifications with $25,000 Bond Requirement)
Which municipalities are covered in the Alameda County directory?
Alameda County coverage includes Oakland, Fremont, Hayward, Berkeley, San Leandro, Livermore, Pleasanton, Alameda, Union City, Dublin, with County Seat in Oakland.
Are licensed contractors in Alameda County, CA required to carry insurance and surety bonds?
Yes. Under California licensing authority regulations, licensed windows contractors typically must maintain active Commercial General Liability insurance, appropriate surety bonds, and state Workers' Compensation coverage before pulling municipal permits.
Other Counties in California
Los Angeles CountySan Diego CountyOrange CountySanta Clara CountySan Francisco CountySacramento CountyRiverside CountySan Bernardino CountyContra Costa CountySan Mateo CountyVentura CountyFresno CountyKern CountySonoma CountyStanislaus CountyMonterey CountySanta Barbara CountyButte CountyShasta CountyHumboldt County
Before the first call
- Describe the job and ask whether it is within their scope and service area.
- Check the credential with its issuing authority and ask what applies where the work will happen.
- Ask about insurance, availability, who will do the work, and a written scope.
- Ask about callout fees, labor or fixed rates, materials, cancellation and any estimate charge.
Verification Overview & Key Takeaways: How to Check Official Credentials
HomeCrafto displays source records with different scopes, including licenses, registrations, municipal permits and community records. A source entry is not proof of qualification for your job. Before signing a work order or paying a deposit, homeowners should confirm that the contractor’s credential number is active, verify that the license classification covers the specific trade scope required for the job, and request a current Certificate of Insurance (COI) directly from the issuing insurance carrier. Independent verification protects your property and ensures compliance with local building codes.
How do you verify a contractor license number and insurance on official portals (FAQ)?
You can verify active license standing and consumer protection rules directly through official government portals, including Washington L&I Contractor Verify, the California Contractors State License Board (CSLB), the Connecticut eLicense Portal, USA.gov State Consumer Protection Offices, and FTC Home Improvement Consumer Guidance. Always confirm municipal permit requirements with your local building department before work begins.