No published contact details.
Mc Mahon Plumbing is a plumbing contractor with 3 tracked San Francisco building-permit projects on record, with the latest filing in that record 72 days ago. Its filings (May 2025 to Sep 2025) are concentrated in Marina and Castro/Upper Market, 100% residential. If you work at Mc Mahon Plumbing, claim this page to add a description.
Filed 72 days ago
#1,373
by SF filing activity
among SF specialty contractors, 90 days to Aug 23, 2026
3
projects
from 11 filings
1/16
active week
weeks with a filing (16 weeks to Aug 23, 2026)
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Permit-backed projects · PermitPipeline’s independent record
$30K Castro/Upper Market single-family renovation
Active 11 months ago · 2 filings · Mc Mahon Plumbing: specialty contractor
Work category: 1m; new heat pump
GC named · 2 specialty contractors identified
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$35K Marina single-family renovation
Last active May 2025 · Mc Mahon Plumbing: specialty contractor
Work category: 1m; replace furnace and ac with heat pump
GC named · 2 specialty contractors identified
View project details →
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owner names and mailing addresses, and full filing histories are part of the paid product.
3 project records for Mc Mahon Plumbing: addresses, values, project teams
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Declared values3 on filetoo few for a rangeLast filed72 days agoCastro/Upper Market · Jul 7, 2026Last 90 days1 active0 newly filed
Filing activity · 16 weeks to Aug 23, 2026 · peak Jul 2026
MAY
JUN
JUL
AUG
Project mix · by use
Residential100%
Geography · by neighborhood
Marina67%
Castro/Upper Market33%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| None on shared filings. | ||||
| 1 | Jfieco | General contractor | 2 | |
| 2 | KLM Utilities, LLC | General contractor | 1 | |
| 3 | Schmitt Heating Co Inc | General contractor | 1 | |
| 4 | LMJ HVAC | Plumbing contractor | 1 | |
| 5 | Pauric 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 relationships1 firmFirms this one appears with on more than one project, out of 5 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does Mc Mahon Plumbing appear on?▾
PermitPipeline tracks 3 San Francisco building-permit projects for Mc Mahon Plumbing (May 2025 to Sep 2025). 1 had filing activity in the last 90 days.
Does Mc Mahon Plumbing work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Mc Mahon 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 Mc Mahon Plumbing work?▾
67% of Mc Mahon Plumbing's tracked San Francisco projects are in Marina.
Which firms appear most often on the same filings as Mc Mahon Plumbing?▾
Mc Mahon Plumbing most frequently appears on the same San Francisco permit filings as Jfieco, KLM Utilities, LLC, Schmitt Heating Co Inc. Appearing together indicates association on shared filings, not a proven working relationship.
Is Mc Mahon Plumbing a plumbing contractor?▾
Mc Mahon 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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