No published contact details.
National Plumbing is a plumbing contractor with 18 tracked San Francisco building-permit projects on record, with the latest filing in that record 55 days ago. Its filings (Jan 2025 to Aug 2026) are concentrated in West of Twin Peaks and Bernal Heights, 67% residential. A typical project in the record declares $8K–$80K. If you work at National Plumbing, claim this page to add a description.
Filed 55 days ago
#603
by SF filing activity
among SF specialty contractors, 90 days to Oct 4, 2026
18
projects
from 47 filings
2/16
active weeks
weeks with a filing (16 weeks to Oct 4, 2026)
Portfolio · $399/yearFree during launch
Work at National Plumbing?
Claim your firm and publish up to three projects with photographs. Claiming also gives you your logo, a short introduction and your own contact details.
Permit-backed projects · PermitPipeline’s independent record
$825K Oceanview/Merced/Ingleside new multifamily building
Active 10 months ago · 2 filings · National Plumbing: specialty contractor
Online electrical permit: category 4a: installation of fire warning and controlled devices of up to 2,500 ft². installation of a new…
GC named · Architect identified · 3 Design firms identified · Engineer identified · 5 specialty contractors identified
View project details →
$15K North Beach renovation
Active 2 months ago · 3 filings · National Plumbing: specialty contractor
Work category: 1p; add seven earthquake valve
GC named · Design firm identified · Specialty contractor identified
View project details →
$80K Tenderloin commercial renovation
Last active Aug 2025 · National Plumbing: specialty contractor
Work category: 8p; remove heater with from the record; provide and install new dhw unit ( yet known)
GC named · 2 Design firms identified · 3 specialty contractors identified
View project details →
15 more
National Plumbing projects with project intelligence
Scopes, values, teams and filing history for every one
Start your 14-day trial →
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.
18 project records for National Plumbing: addresses, values, project teams
Start 14-day free trial
Typical project$8K–$80K$45K typicalLast filed55 days agoMission · Aug 13, 2026Last 90 days2 active1 newly filed
Filing activity · 16 weeks to Oct 4, 2026 · peak Aug 2026
JUN
JUL
AUG
SEP
Project mix · by use
Commercial33%
Residential67%
Geography · by neighborhood
West of Twin Peaks34%
Bernal Heights22%
Sunset/Parkside22%
Bayview Hunters Point11%
Hayes Valley11%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | RKD Consulting Corp | Architecture | 2 | |
| 2 | Lawrence Liao STR. Eng | Architecture | 1 | |
| 3 | MML Architect | Architecture | 1 | |
| 1 | Y & C Electrical.Inc | General contractor | 3 | |
| 2 | ZH Mechanical Inc | General contractor | 2 | |
| 3 | Amone Corp | General contractor | 1 | |
| 4 | Area Development Inc. | General contractor | 1 | |
| 5 | Best Care Fire Protection | General contractor | 1 |
Create a free account to see every firm on these projects and how many projects each one shares.
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.
Get an email when National Plumbing files a new project. Monitor up to 10 firms free.
Create your free account
Already have an account? Log in
Need full project records — addresses, values, parties? Start 14-day free trial
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 relationships3 firmsFirms this one appears with on more than one project, out of 19 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does National Plumbing appear on?▾
PermitPipeline tracks 18 San Francisco building-permit projects for National Plumbing (Jan 2025 to Aug 2026). 2 had filing activity in the last 90 days.
Does National Plumbing work on commercial or residential projects?▾
Across its tracked San Francisco filings, 33% of National Plumbing's projects are commercial and 67% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in San Francisco does National Plumbing work?▾
34% of National Plumbing's tracked San Francisco projects are in West of Twin Peaks.
What is a typical National Plumbing project worth?▾
The median declared value across the 10 San Francisco projects National Plumbing has on record that state one is $45K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as National Plumbing?▾
National Plumbing most frequently appears on the same San Francisco permit filings as Y & C Electrical.Inc, RKD Consulting Corp, ZH Mechanical Inc. Appearing together indicates association on shared filings, not a proven working relationship.
Is National Plumbing a plumbing contractor?▾
National 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 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.
Firm directories by market