O'Sullivan & Son Construction Inc
Based in San Ramon
2 kitchen, 2 bath · median permit value $2k · latest: bath, Jul 2026 (SF permits)
6 residential permits · licensed 19 yrs
Active · B · #902262 · Bond ✓ · Workers' comp ✓ · Verify on CSLB
General contractor San Ramon, CA Sole Owner
Wing Construction Co
Active License #800702 B General Building · San Ramon, CA
- CSLB license age
- 24 yrs 11 mo
- Expires
- Oct 31, 2027
- Bond
- $25,000 bond
- American Contractors Indemnity Company
- Workers' comp
- Exempt: reports no employees
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
- Sole Owner
- Issued
- Oct 30, 2001 CSLB license age: 24 yrs 11 mo as of the file date
- Contractor bond
- $25,000 bond American Contractors Indemnity Company, since Jan 1, 2023
- Workers' comp
- Exempt: reports no employees WC file dated Oct 17, 2026
- CSLB last updated this record
- Oct 12, 2026
Owner of record
CSLB lists Wing Construction Co as the sole owner of license #800702.
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)
15permits in 24 months
- Residential
- 13
- Commercial
- 2
- Latest issued
- Sep 2, 2026
- Median permit value
- $50,000
Permit descriptions that mention: Kitchen remodel (10), Bathroom remodel (6), Tenant improvement (1)
Permits by declared value (15 with a value)
- Under $50k 7
- $50k to $250k 7
- $250k to $1M 1
- Over $1M 0
Latest permits (public permit numbers)
- Kitchen remodel · Sep 2, 2026 Permit #202608317424
- Kitchen remodel · $200,000 · Sep 2, 2026 Permit #202605040572
- Kitchen remodel · $5,000 · Jul 15, 2026 Permit #202607014444
- Kitchen remodel · $107,000 · Jun 25, 2026 Permit #202605070880
- Kitchen remodel · $120,000 · Mar 16, 2026 Permit #202602246390
- Over-the-counter alterations permit · $40,000 · Jan 6, 2026 Permit #202512111512
- Over-the-counter alterations permit · Dec 4, 2025 Permit #202512041029
- Additions, alterations or repairs · $839,000 · Nov 17, 2025 Permit #202505015597
- Kitchen remodel · $51,000 · Oct 6, 2025 Permit #202510066806
- Kitchen remodel · $50,000 · Sep 11, 2025 Permit #202509115100
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).
- Workers' comp exemption. Until 2028, a contractor with no employees can file an exemption, and this license shows one. CSLB workers' comp
Other licensed general contractors near San Ramon
Ranked by the published scoring rules on the methodology page.
Young & Burton Inc
Based in San Ramon
1 addition, 1 whole house · median permit value $75k · latest: addition, Jun 2025 (SF permits)
3 residential permits · licensed 38 yrs
Active · B · #531879 · Bond ✓ · Workers' comp ✓ · Verify on CSLB
C-8 Concrete
JV Services
Based in San Ramon
2 bath · median permit value $23k · latest: bath, Nov 2025 (SF permits)
3 residential permits · licensed 6 yrs
Active · B · #1062797 · Bond ✓ · Workers' comp ✓ · Verify on CSLB
Questions about Wing Construction Co
Is Wing Construction Co licensed?
Yes. CSLB lists license #800702 (B, General Building) as active in its file dated Oct 16, 2026. It was first issued Oct 30, 2001 and expires Oct 31, 2027. Check the live record on CSLB before you sign.
What is the CSLB license number for Wing Construction Co?
CSLB lists Wing Construction Co under license #800702, class B, in San Ramon, CA.
Is Wing Construction Co bonded and insured?
CSLB shows a $25,000 contractor bond with American Contractors Indemnity Company and a workers' comp exemption, which means it reports no employees. Those are the bond and workers' comp records in CSLB's file dated Oct 16, 2026. Ask for its certificate of general liability insurance.
Where can I see CSLB complaint and legal-action records for #800702?
On license #800702's page on CSLB. It lists any complaint disclosures and legal actions CSLB publishes for the license.
Where can I read reviews of Wing Construction Co?
We don't host reviews. The links under the license details search for Wing Construction in San Ramon 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.