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88of 100 · v2

Union Pierce Construction

General Building Contractor · San Francisco, CA
Active license
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License1 record · Active license
Permits34 on file
Discipline / legalNo board discipline flag
BBBNot yet available
Phone(415) 310-8828
Address3973 Clay Street

Report verdict

Licensed & active (expires 2026-12-31) · No board discipline flag found in covered sources · 34 permits on file

88/100 HomeProFax Score — public-record factors only, not a rating of workmanship. How the score works Full report

The state board is the authority. A flag is a prompt to read the board record, not a verdict. Verify license status with the issuing board before you hire. See methodology and disclaimer & corrections.

What this report checks

✓ License
Checked
1 board record(s) · Active license
✓ Discipline & legal
Checked
No board discipline flag found in covered sources.
✓ Permits
Checked
34 permit(s) on file from covered city sources.
◐ Reviews & complaints
Where available
BBB where researched and approved HomeProFax reviews only; external ratings are linked below, not stored or scored.

Score breakdown

FactorPointsWhy
License status35/35
Active license on file with a state board
Discipline & legal flags20/20
No disciplinary flag on board record
Permit history20/20
34 permits on file
Reviews (BBB + HomeProFax)13/25
No BBB rating on file and no approved HomeProFax reviews yet (neutral). External ratings are linked below, not stored

A simple, transparent sum of public-record factors. How the score works. Not a rating of workmanship.

Source data as of: Report rebuilt from source files on 2026-10-19 · CSLB bond/workers' comp as of 2026-10-14 · most recent permit on file: 2026-02-10.

What we checked

LicenseCheckedCA Corporation #979719 · active
BondChecked$25,000 with AMERICAN CONTRACTORS INDEMNITY COMPANY · as of 2026-10-14
Workers' compCheckedWorkers' Compensation Insurance (STATE COMPENSATION INSURANCE FUND) · as of 2026-10-14
Years licensedCheckedLicensed since 2012
Business registrationNot available in CAState business registry not loaded yet
PermitsChecked34 permits on record
DisciplineCheckednone on record
OSHANot checked yetOSHA records not checked yet
Reviews & outside linksNot checked yetNo review lookup run yet
Contractor-providedNot checked yetNothing provided by the contractor yet

Public records as of their source dates. Board status is shown as reported by the board. Not a guarantee. Ask the contractor for their verified HomeProFax report.

Licenses

Licensed since 2012 (earliest original issue date on these state license records; not a business start date)

License #TypeStatusIssuedExpiresSource
CA 979719Corporation (B)
Workers' comp: Workers' Compensation Insurance (STATE COMPENSATION INSURANCE FUND); Contractor bond: $25000 (AMERICAN CONTRACTORS INDEMNITY COMPANY)
clear2012-12-212026-12-31State board

Bond & workers' comp

Contractor bond$25,000 · AMERICAN CONTRACTORS INDEMNITY COMPANY · effective 2023-01-01
Workers' compWorkers' Compensation Insurance · STATE COMPENSATION INSURANCE FUND · effective 2014-04-18 · expires 2027-04-18

Source: CSLB Public Data Portal (License Master), as of 2026-10-14. Verify current bond and insurance with CSLB and the insurer before you hire.

Building permits

DatePermitTypeAddressValue
2026-02-10202602105615otc alterations permit55 Ashbury Tr$1
2026-02-10202601073376otc alterations permit1030 Leavenworth St$1
2025-12-31202411124804additions alterations or repairs3973 Clay St$280,000
2025-04-28202504285365otc alterations permit55 Ashbury Tr$3,000
2024-07-05202403288788otc alterations permit55 Ashbury Tr$30,000
2023-06-28202306281111additions alterations or repairs1030 Leavenworth St$15,000
2023-05-09202305026954otc alterations permit3975 Clay St$10,000
2021-12-20202112083955otc alterations permit55 Ashbury Tr$300,000
2021-06-18201909131638additions alterations or repairs3765 Jackson St$250,000
2021-06-15201805179427additions alterations or repairs1030 Leavenworth St$200,000
2021-02-02202102013763otc alterations permit981 Grove St$1
2020-02-26201907297230otc alterations permit3765 Jackson St$50,000
2020-02-26201907035117otc alterations permit3765 Jackson St$200,000
2019-12-06201711224704additions alterations or repairs57 Ashbury Tr$100,000
2019-10-03201908290234otc alterations permit2900 Jackson St$10,000
2019-02-27201812047426otc alterations permit1030 Leavenworth St$60,000
2018-05-18201803163872otc alterations permit2900 Jackson St$5,000
2018-02-01201802010092otc alterations permit1685 Plymouth Av$1
2017-11-17201710312772otc alterations permit55 Ashbury Tr$20,000
2017-11-17201711174308otc alterations permit55 Ashbury Tr$1
2017-11-17201711174303otc alterations permit55 Ashbury Tr$1
2017-09-26201709269542otc alterations permit1685 Plymouth Av$2,000
2017-09-26201708104503otc alterations permit55 Ashbury Tr$140,000
2017-09-26201708215422otc alterations permit55 Ashbury Tr$10,000
2016-12-19201601288278otc alterations permit981 Grove St$1,500
2016-03-11201603111798otc alterations permit981 Grove St$1
2016-01-28201508255285additions alterations or repairs722 Steiner St$5,000
2015-09-29201509298304otc alterations permit55 Ashbury Tr$3,500
2015-06-11201405145715additions alterations or repairs981 Grove St$489,000
2015-05-13201505136290otc alterations permit55 Ashbury Tr$5,000
2014-11-12201411121224otc alterations permit55 Ashbury Tr$3,800
2014-04-21201403130677otc alterations permit55 Ashbury Tr$65,000
2013-08-06201308063610otc alterations permit1685 Plymouth Av$6,900
2013-04-19201304194970otc alterations permit4909 17th St$16,000

Source: DataSF (Building Permits + Building Permits Contacts)

Source: DataSF, City and County of San Francisco (Building Permits; Building Permits Contacts).

Discipline, complaints & legal

No board discipline or complaints found in our current sources. Federal court search (CourtListener): no state-consistent possible match in our last sample run, or not yet run for this contractor.

Around the web

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Reviews

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Homeowner reviews on HomeProFax

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Union Pierce Construction · General Building Contractor
San Francisco, CA
License on file: CA ••••9719
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Sources for this report

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