Bingo Builders
Based in Castro Valley
15 bath, 7 kitchen, 1 addition · median permit value $21k · latest: addition, Sep 2026 (SF permits)
26 residential permits · licensed 3 yrs
Active · B · #1110685 · Bond ✓ · Workers' comp ✓ · Verify on CSLB
General contractor Castro Valley, CA Corporation
Hamilton Exteriors
Active License #1078806 B General Building · Castro Valley, CA
- CSLB license age
- 5 yrs 2 mo
- Expires
- Jul 31, 2027
- Bond
- $25,000 bond
- American Contractors Indemnity Company
- Workers' comp
- Great American Insurance Company
CSLB records dated Oct 16, 2026 checked Oct 18, 2026 Verify live on CSLB
License record
- Status
- Active CSLB status code: CLEAR
- Class
- B · General Building
- Business type
- Corporation
- Issued
- Jul 26, 2021 CSLB license age: 5 yrs 2 mo as of the file date
- Contractor bond
- $25,000 bond American Contractors Indemnity Company, since Dec 3, 2025
- Workers' comp
- Great American Insurance Company Jun 30, 2026 to Jun 30, 2027 · WC file dated Oct 17, 2026
- CSLB last updated this record
- Oct 6, 2026
Personnel of record
CSLB's personnel file lists no one for this license. The full record on CSLB may show more.
What the permit record shows
We have permit records for San Francisco and San Jose only. Other Bay Area cities don't publish contractor names in a form we can read, so an empty list here says nothing about work elsewhere.
San Francisco permits (matched by license number)
3permits in 24 months
- Residential
- 1
- Commercial
- 2
- Latest issued
- Sep 22, 2025
- Median permit value
- $12,000
Permits by declared value (3 with a value)
- Under $50k 3
- $50k to $250k 0
- $250k to $1M 0
- Over $1M 0
Latest permits (public permit numbers)
- Over-the-counter alterations permit · $10,000 · Sep 22, 2025 Permit #202509225817
- Over-the-counter alterations permit · $30,000 · Sep 17, 2025 Permit #202509165411
- Over-the-counter alterations permit · $12,000 · Jul 9, 2025 Permit #202507080351
Source: DataSF building permits, checked Oct 18, 2026
Complaints and legal actions
CSLB lists complaint and legal-action disclosures on the license's page.
Check complaints on CSLBBefore you sign
- Down payment. On a home improvement contract it can't exceed $1,000 or 10% of the price, whichever is less. B&P 7159.5
- What this class covers. A B contractor's prime contract needs 2 or more unrelated trades (B&P 7057). B covers additions and structural work; a B-2 doesn't (CSLB class B-2).
Other licensed general contractors near Castro Valley
Ranked by the published scoring rules on the methodology page.
J & A Construction
Based in Castro Valley
3 kitchen, 3 bath, 2 additions · median permit value $370k · latest: kitchen, Sep 2026 (SF permits)
3 residential permits · licensed 14 yrs
Active · B · #974834 · Bond ✓ · Workers' comp ✓ · Verify on CSLB
Luis W Yan
Based in Castro Valley
2 bath, 1 kitchen · median permit value $87k · latest: bath, Oct 2025 (SF permits)
2 residential permits · licensed 16 yrs
Active · B · #939755 · Bond ✓ · Workers' comp ✓ · Verify on CSLB
Questions about Hamilton Exteriors
Is Hamilton Exteriors licensed?
Yes. CSLB lists license #1078806 (B, General Building) as active in its file dated Oct 16, 2026. It was first issued Jul 26, 2021 and expires Jul 31, 2027. Check the live record on CSLB before you sign.
What is the CSLB license number for Hamilton Exteriors?
CSLB lists Hamilton Exteriors under license #1078806, class B, in Castro Valley, CA.
Is Hamilton Exteriors bonded and insured?
CSLB shows a $25,000 contractor bond with American Contractors Indemnity Company and workers' comp coverage through Great American Insurance Company (policy to Jun 30, 2027). Those are the bond and workers' comp records in CSLB's file dated Oct 16, 2026. Ask for its certificate of general liability insurance.
Who owns Hamilton Exteriors?
CSLB lists the business type as corporation and has no personnel names in the file we use. The full record on CSLB may show more.
Where can I see CSLB complaint and legal-action records for #1078806?
On license #1078806's page on CSLB. It lists any complaint disclosures and legal actions CSLB publishes for the license.
Where can I read reviews of Hamilton Exteriors?
We don't host reviews. The links under the license details search for Hamilton Exteriors in Castro Valley on Yelp, Google, Houzz, BBB, Thumbtack and Angi, so you read them at the source.
Confirm or correct this page
For the business owner. Everything above comes from CSLB and city permit files. Send a correction and we check it against the source.