The Backflow Guy Inc is a plumbing contractor with 3 tracked San Francisco building-permit projects on record, with the latest filing in that record 215 days ago. Its filings (May 2025 to Mar 2026) are concentrated in Hayes Valley and Mission, 100% commercial. If you work at The Backflow Guy Inc, claim this page to add a description.
Filed 215 days ago
#2,450
by SF filing activity
among SF specialty contractors, 90 days to Oct 4, 2026
3
projects
from 4 filings
0/16
active weeks
weeks with a filing (16 weeks to Oct 4, 2026)
Portfolio · $399/yearFree during launch
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Permit-backed projects · PermitPipeline’s independent record
West of Twin Peaks renovation
Active 7 months ago · The Backflow Guy: specialty contractor
Work category: 11p; replacement of existing backflow. old valve info is 1/2" flomatic 6175 sng1736 was replaced with 1/2" wilkins 975xl2 rp…
No GC named
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$25K Mission commercial renovation
Last active May 2025 · The Backflow Guy: specialty contractor
Work category: 11p; three backflows located in kitchen 1, bevi station, courtyard
GC named · Engineer identified
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Hayes Valley renovation
Last active Oct 2025 · The Backflow Guy: specialty contractor
Work category: 11p; backflow was removed 3/4" febco 825y rp sn:ak6543 located in the basement boiler room
No GC named
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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.
3 project records for The Backflow Guy Inc: addresses, values, project teams
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Declared values1 on filetoo few for a rangeLast filed215 days agoWest of Twin Peaks · Mar 6, 2026Last 90 days0 active0 newly filed
Filing activity · 16 weeks to Oct 4, 2026
JUN
JUL
AUG
SEP
Project mix · by use
Commercial100%
Geography · by neighborhood
Hayes Valley34%
Mission33%
West of Twin Peaks33%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | James Spore | Engineering | 1 | |
| 1 | Tristrux LLC Dba Tristrux Construction | General 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 2 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does The Backflow Guy Inc appear on?▾
PermitPipeline tracks 3 San Francisco building-permit projects for The Backflow Guy Inc (May 2025 to Mar 2026). 0 had filing activity in the last 90 days.
Does The Backflow Guy Inc work on commercial or residential projects?▾
Across its tracked San Francisco filings, 100% of The Backflow Guy Inc's projects are commercial and 0% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in San Francisco does The Backflow Guy Inc work?▾
34% of The Backflow Guy Inc's tracked San Francisco projects are in Hayes Valley.
Which firms appear most often on the same filings as The Backflow Guy Inc?▾
The Backflow Guy Inc most frequently appears on the same San Francisco permit filings as James Spore, Tristrux LLC Dba Tristrux Construction. Appearing together indicates association on shared filings, not a proven working relationship.
Is The Backflow Guy Inc a plumbing contractor?▾
The Backflow Guy 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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