Home › California › San Francisco › Alpha Construction Co
68of 100 · v2

Alpha Construction Co

General Building Contractor · San Francisco, CA
Active license Disciplinary flag
Is this your business? Claim it free →
License1 record · Active license
Permits98 on file
Discipline / legal1 flagged license record(s)
BBBNot yet available
Phone(415) 822-8246
Address1600 Armstrong Avenue

Report verdict

Licensed & active (expires 2027-12-31) · Board discipline/legal flag on record — read the board record first · 98 permits on file

68/100 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
1 flagged license record(s) — read the board record.
✓ Permits
Checked
98 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 flags0/20
Disciplinary action on board record
Permit history20/20
98 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: 2026-07-09.

What we checked

LicenseCheckedCA Sole Owner #908507 · active
BondChecked$25,000 with PHILADELPHIA INDEMNITY INSURANCE COMPANY · as of 2026-10-14
Workers' compCheckedWorkers' Compensation Insurance (AMERICAN CASUALTY COMPANY OF READING PA) · as of 2026-10-14
Years licensedCheckedLicensed since 2007
Business registrationNot available in CAState business registry not loaded yet
PermitsChecked98 permits on record
DisciplineCheckedboard action 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 2007 (earliest original issue date on these state license records; not a business start date)

License #TypeStatusIssuedExpiresSource
CA 908507Sole Owner (B)
Workers' comp: Workers' Compensation Insurance (AMERICAN CASUALTY COMPANY OF READING PA); Contractor bond: $25000 (PHILADELPHIA INDEMNITY INSURANCE COMPANY)		bnd pay en susp discipline2007-12-282027-12-31State board

Bond & workers' comp

Contractor bond$25,000 · PHILADELPHIA INDEMNITY INSURANCE COMPANY · effective 2026-02-24
Workers' compWorkers' Compensation Insurance · AMERICAN CASUALTY COMPANY OF READING PA · effective 2025-02-25 · expires 2027-02-25

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
2026-07-09202607084721otc alterations permit904 Kansas St$2,000
2026-02-12202601264549otc alterations permit785 Columbus Av$1
2026-02-12202601264547otc alterations permit785 Columbus Av$1
2026-02-12202602125873otc alterations permit785 Columbus Av$1
2026-02-12202602125874———
2026-01-28202601284768otc alterations permit3109 16th St$1
2026-01-21202601204159otc alterations permit785 Columbus Av$1
2025-12-16202412025898otc alterations permit4830 Mission St$15,000
2025-12-05202512010622otc alterations permit91 Marietta Dr$650
2025-12-05202512041000otc alterations permit237 Harvard St$850
2025-11-06202511048932otc alterations permit4830 Mission St$85,000
2025-10-21202510217794otc alterations permit470 14th St$77,000
2025-10-08202508153209otc alterations permit3033 24th St$15,000
2025-08-25202508253839otc alterations permit904 Kansas St$1,500
2025-08-13202505196777otc alterations permit470 14th St$1
2025-06-10202506108300otc alterations permit563 Webster St$1
2024-10-10202408057946otc alterations permit3109 16th St$15,000
2024-03-20202403198190otc alterations permit2227 Taylor St$10,000
2024-03-19202403198201otc alterations permit561 Webster St$4,000
2024-03-19202403198194otc alterations permit466 14th St$4,000
2024-03-19202403198197otc alterations permit470 14th St$4,000
2024-01-12202311019917otc alterations permit785 Columbus Av$45,000
2024-01-12202311019922otc alterations permit785 Columbus Av$50,000
2023-11-28202311281545otc alterations permit1263 11th Av$1
2023-07-19202307182412otc alterations permit3021 Anza St$60,000
2023-03-14202303143630otc alterations permit870 Valencia St$1
2023-03-14202303143637otc alterations permit504 Valencia St$1
2023-03-14202303143635otc alterations permit504 Valencia St$1
2022-12-23202212239133otc alterations permit870 Valencia St$1
2022-11-09202211096145otc alterations permit1627 Sanchez St$6,500
2022-09-06202208261356otc alterations permit590 York St$16,000
2022-08-11202208110392otc alterations permit3021 Anza St$500
2022-07-08202207087994additions alterations or repairs139 Naples St$20,000
2022-02-18202202188338otc alterations permit340 Jersey St$800
2021-11-23202111232998otc alterations permit829 Arguello Bl$3,000
2021-07-16202107144365otc alterations permit1139 Market St$20,000
2021-06-18202104279430otc alterations permit11 College Tr$65,000
2021-05-18202101192920otc alterations permit30 Bernice St$8,000
2021-04-14202104148568additions alterations or repairs1724 Revere Av$63,500
2021-01-28202101283497otc alterations permit226 Claremont Bl$6,500
2020-12-14202012140962otc alterations permit139 Naples St$20,000
2020-06-03202006018047otc alterations permit438 Bright St$8,500
2020-05-12202002033426otc alterations permit1042 Montgomery St$30,000
2020-02-24202002245192otc alterations permit658 Mangels Av$5,000
2019-07-12201906062659otc alterations permit1019 Lincoln Wy$10,000
2019-03-22201902284083otc alterations permit1651 Kirkwood Av$1
2019-03-18201903185478otc alterations permit518 46th Av$8,000
2019-03-08201809069276otc alterations permit1785 San Jose Av$97,000
2019-02-08201902082442otc alterations permit1263 11th Av$7,500
2018-10-24201810123135otc alterations permit3149 22nd St$18,000
2018-09-05201808288592otc alterations permit19 Homestead St$11,000
2018-06-21201307161976additions alterations or repairs7 Progress St$15,000
2018-05-17201805179440otc alterations permit19 Homestead St$25,000
2018-02-22201802222009otc alterations permit1449 38th Av$1
2018-01-23201705307900otc alterations permit2201 Powell St$250
2017-12-21201712146539otc alterations permit1651 Kirkwood Av$15,000
2017-11-06201711063259otc alterations permit1449 38th Av$1
2017-08-28201610130213additions alterations or repairs139 Capistrano Av$300,000
2017-07-27201707061056otc alterations permit1449 38th Av$95,720
2017-06-14201701096792otc alterations permit165 Marview Wy$30,000
2017-05-24201705247522otc alterations permit124 Waverly Pl$16,000
2017-05-15201705126517otc alterations permit2490 17th Av$5,500
2017-01-19201612124741otc alterations permit1550 Plymouth Av$90,000
2017-01-11201512245923additions alterations or repairs1136 Hampshire St$204,000
2016-04-01201603293326otc alterations permit608 Ofarrell St$3,000
2015-08-21201508214912otc alterations permit138 Hyde St$2,500
2015-05-12201504224321otc alterations permit74 06th St$210,000
2014-09-12201409116121otc alterations permit41 San Jose Av$1,000
2014-07-11201406239069otc alterations permit882 Sutter St$10,000
2014-05-27201405165972otc alterations permit38 Fair Av$1,500
2014-04-24201404244024otc alterations permit138 Hyde St$12,500
2014-04-08201404082759otc alterations permit445 Ofarrell St$600
2014-03-28201401065606otc alterations permit4 Hardie Pl$12,500
2014-03-13201403130683otc alterations permit360 Hyde St$400
2014-03-13201403130699otc alterations permit233 Eddy St$600
2014-03-05201403059954otc alterations permit130 Eddy St$300
2013-12-27201312275159otc alterations permit445 Ofarrell St$3,750
2013-10-15201310159210otc alterations permit1440 Steiner St$5,000
2013-09-16201309166952otc alterations permit3300 Clay St$1,000
2013-08-15201308154462otc alterations permit118 Taylor St$12,000
2013-08-05201308053534otc alterations permit371 Turk St$1,500
2013-07-26201307262920otc alterations permit118 Taylor St$12,000
2013-07-16201306240287otc alterations permit3248 18th St$3,800
2013-07-11201307111622otc alterations permit1627 Sanchez St$1,000
2013-07-10201307051225otc alterations permit1637 Pierce St$75,000
2013-06-12201306129288otc alterations permit1637 Pierce St$2,500
2013-05-06201304225144otc alterations permit118 Taylor St$2,500
2013-04-05201304043796otc alterations permit2646 Hyde St$25,000
2013-02-06201302069568otc alterations permit309 Steiner St$350
2009-05-01200905017552otc alterations permit1214 Polk St$1
2009-05-01200905017551otc alterations permit1214 Polk St$1
2008-09-04200809040763otc alterations permit3300 Clay St$5,500
2008-08-15200808159227otc alterations permit1124 Stanyan St$80,000
2008-07-07200807076111otc alterations permit54 Palm Av$1,000
2008-06-26200806174707otc alterations permit1214 Polk St$1
2008-04-07200804079052otc alterations permit1214 Polk St$19,362
2008-04-07200804078972otc alterations permit87 Virgil St$20,000
2007-12-31200709273933additions alterations or repairs2526 Francisco St$300,000

Source: DataSF (Building Permits + Building Permits Contacts)

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

Discipline, complaints & legal

Board record 1 license record(s) carry a disciplinary/legal-action flag from the state board: CA B 908507 (Sole Owner). Our board data records that a flag exists but not its date, description or resolution — read the full action at the board.

Around the web

Search other sites — these open a search for this name and location. They are not verified matches; check the business name, address and license number on the result.

Search Google Maps ↗ Search Angi ↗ Search Yelp ↗ Search BBB ↗ Search HomeAdvisor ↗

Outside ratings are shown for context only and are not part of the HomeProFax Score. Why?

Reviews

External review checks (we link out; we do not store or score Google, Angi, Yelp or Houzz ratings):

Check Google reviews ↗ Search BBB ↗

Homeowner reviews on HomeProFax

No published homeowner reviews yet.

Leave a review

Reviews are moderated before publishing.

Is this your business?

Claim this profile for free to correct details, add insurance and photos, and get a verified badge.

Claiming this profile
Alpha Construction Co · General Building Contractor
San Francisco, CA
License on file: CA ••••8507
I am the…

Next: enter the 6-digit code we email you (good for 48 hours). Most claims get a decision right after that, along with your website badge and a link to finish your profile. If yours needs a person to check it, you will hear back within 1 business day. After approval you’ll get a short “complete your profile” step for insurance, service areas, website and photos — none of that is needed now.

Something wrong with the name, city or license above?

Only fill this in if the license on file is not yours. Otherwise leave it blank — we already have it.

For a wrong business name or city, submit the claim and note it via Request a correction — an admin reviews every claim.

Sources for this report

See something wrong? Request a correction. This report is compiled from public records and is not a consumer report.

Compare other contractors in San Francisco

See other San Francisco profiles side by side by license status, permits and score, or ask HomeProFax to help match you.

Compare contractors in San Francisco → Get matched

Get matched stores your request on HomeProFax for matching review; no contractor is sent or sold your details today.

More General Contractors in San Francisco, CA

Compare 604 general contractors in San Francisco by license status, permits and score.

See general contractors in San Francisco → All contractors in San Francisco