224 Santos St, San Francisco, CA
8a Plumbing is a plumbing contractor with 4 tracked San Francisco building-permit projects on record, with the latest filing in that record 37 days ago. Its filings (Aug 2025 to Jul 2026) are concentrated in Haight Ashbury and Inner Richmond, 100% residential. A typical project in the record declares $7K–$80K. If you work at 8a Plumbing, claim this page to add a description.
Filed 37 days ago
#807
by SF filing activity
among SF specialty contractors, 90 days to Aug 23, 2026
4
projects
from 16 filings
3/16
active weeks
weeks with a filing (16 weeks to Aug 23, 2026)
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Permit-backed projects · PermitPipeline’s independent record
Inner Richmond single-family renovation
Grade DActive 1 month ago · 2 filings · 8a Plumbing: specialty contractor
Work category: 1m; install a direct-vent gas fireplace per the manual specs. gas line by others
GC named · Architect identified · Engineer identified · Specialty contractor identified
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$68K Mission multifamily renovation
Last active Aug 2025 · 8a Plumbing: specialty contractor
New wiring for the entire apartment, 1 sub-panel, 1 kitchen, 1 bathroom, laundry room1
GC named · 2 specialty contractors identified
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$7K Lone Mountain/USF single-family renovation
Active 11 months ago · 8a Plumbing: specialty contractor
Rear building only- no work is visible from street. replace 7 windows in kind. double hung wood frame with exterior aluminum cladding
No GC named · Specialty contractor identified
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1 more
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Scopes, values, teams and filing history for every one
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Neighborhood, filing date, scope and declared value are shown here. Exact addresses,
owner names and mailing addresses, and full filing histories are part of the paid product.
4 project records for 8a Plumbing: addresses, values, project teams
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Typical project$7K–$80K$68K typicalLast filed37 days agoInner Richmond · Aug 10, 2026Last 90 days2 active0 newly filed
Filing activity · 16 weeks to Aug 23, 2026 · peak Aug 2026
MAY
JUN
JUL
AUG
Project mix · by use
Residential100%
Geography · by neighborhood
Haight Ashbury25%
Inner Richmond25%
Lone Mountain/USF25%
Mission25%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | DNM Architect | Architecture | 1 | |
| 2 | WM Structural | Engineering | 1 | |
| 1 | Mario Sarmento | General contractor | 2 | |
| 2 | Okells Inc | General contractor | 2 | |
| 3 | Astorga Construction Inc | General contractor | 1 | |
| 4 | San Francisco Design Build | General contractor | 1 | |
| 5 | Granite Electric | Electrical contractor | 1 |
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Owner and developer names, and the projects behind each connection, are part of the Leads product.
Firms that appear on the same San Francisco permit filings. Association on shared filings, not a proven working relationship.
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State licenseNot connectedTrade licenses are held by BPELSG. That register is not part of the San Francisco permit record, and we do not yet read it.
Repeat working relationships2 firmsFirms this one appears with on more than one project, out of 7 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does 8a Plumbing appear on?▾
PermitPipeline tracks 4 San Francisco building-permit projects for 8a Plumbing (Aug 2025 to Jul 2026). 2 had filing activity in the last 90 days.
Does 8a Plumbing work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of 8a Plumbing's projects are commercial and 100% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in San Francisco does 8a Plumbing work?▾
25% of 8a Plumbing's tracked San Francisco projects are in Haight Ashbury.
What is a typical 8a Plumbing project worth?▾
The median declared value across the 4 San Francisco projects 8a Plumbing has on record that state one is $68K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as 8a Plumbing?▾
8a Plumbing most frequently appears on the same San Francisco permit filings as Mario Sarmento, Okells Inc, Astorga Construction Inc. Appearing together indicates association on shared filings, not a proven working relationship.
Is 8a Plumbing a plumbing contractor?▾
8a Plumbing is listed as a plumbing contractor on its San Francisco permit filings. Roles on this profile are derived from the role each firm holds on public SF DBI filings.
Public aggregate — full project records are part of the paid leads product. Ranking, filing activity, project mix and geography were last recomputed Aug 23, 2026. Project counts, declared values and filing dates are read live from SF DBI filings.
How far back does this record go?▾
This page covers the recent permit record, not the firm’s full history. A firm’s earliest filing here means it was already working when our record opens, not that it started then.
Sources
San Francisco Department of Building Inspection permit filings.
Record source
Read directly from SF DBI filings.
Photography
None are shown until the firm supplies them.
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