El Maestro Plumbing Inc is a plumbing contractor with 4 tracked San Francisco building-permit projects on record, with the latest filing in that record 85 days ago. Its filings (Oct 2025 to Jul 2026) are concentrated in Bernal Heights and Castro/Upper Market, 100% residential. A typical project in the record declares $5K–$1.8M. If you work at El Maestro Plumbing Inc, claim this page to add a description.
Filed 85 days ago
#881
by SF filing activity
among SF specialty contractors, 90 days to Oct 4, 2026
4
projects
from 8 filings
3/16
active weeks
weeks with a filing (16 weeks to Oct 4, 2026)
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Permit-backed projects · PermitPipeline’s independent record
$1.8M Mission multifamily renovation
Active 2 months ago · 2 filings · El Maestro Plumbing: specialty contractor
All plumbing work, including sub-slab work, for remodel project
GC named · 2 architects identified · Engineer identified
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Bernal Heights multifamily renovation
Grade AActive 2 months ago · 2 filings · El Maestro Plumbing: specialty contractor
Revisions to. change function of 2 windows on rear elevation
GC named · 2 engineers identified · Specialty contractor identified · 1 anticipated category not yet filed
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$5K Noe Valley renovation
Active 3 months ago · 2 filings · El Maestro Plumbing: specialty contractor
Replace existing 40-gallon water heater with like for like 50-gallon atmospheric vent. run approx 35 ft of 1/2" gas pipe from near gas…
No GC named · Specialty contractor identified
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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 El Maestro Plumbing Inc: addresses, values, project teams
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Typical project$5K–$1.8M$550K typical32× the SF median ($17K)Last filed85 days agoMission · Jul 14, 2026Last 90 days2 active0 newly filed
Filing activity · 16 weeks to Oct 4, 2026 · peak Jul 2026
JUN
JUL
AUG
SEP
Project mix · by use
Residential100%
Geography · by neighborhood
Bernal Heights25%
Castro/Upper Market25%
Mission25%
Noe Valley25%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Malcolm Davis Architecture | Architecture | 1 | |
| 2 | Semco | Engineering | 1 | |
| 3 | Semco Engineering Inc. | Engineering | 1 | |
| 4 | Zfa Structural Engineer | Architecture | 1 | |
| 1 | Alward Const. Co Inc A Ca Corp | General contractor | 1 | |
| 2 | Mueller Nicholls Inc | General contractor | 1 | |
| 3 | Walsh Electric SF | 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 relationships0 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 El Maestro Plumbing Inc appear on?▾
PermitPipeline tracks 4 San Francisco building-permit projects for El Maestro Plumbing Inc (Oct 2025 to Jul 2026). 2 had filing activity in the last 90 days.
Does El Maestro Plumbing Inc work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of El Maestro Plumbing Inc'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 El Maestro Plumbing Inc work?▾
25% of El Maestro Plumbing Inc's tracked San Francisco projects are in Bernal Heights.
What is a typical El Maestro Plumbing Inc project worth?▾
The median declared value across the 4 San Francisco projects El Maestro Plumbing Inc has on record that state one is $550K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as El Maestro Plumbing Inc?▾
El Maestro Plumbing Inc most frequently appears on the same San Francisco permit filings as Alward Const. Co Inc A Ca Corp, Malcolm Davis Architecture, Mueller Nicholls Inc. Appearing together indicates association on shared filings, not a proven working relationship.
Is El Maestro Plumbing Inc a plumbing contractor?▾
El Maestro Plumbing Inc 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 Oct 4, 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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