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Hydronics Inc. is a plumbing contractor with 8 tracked San Francisco building-permit projects on record, with the latest filing in that record 82 days ago. Its filings (Jan 2025 to Sep 2025) are concentrated in Chinatown and Haight Ashbury, 100% residential. A typical project in the record declares $9K–$77K. If you work at Hydronics Inc., claim this page to add a description.
Filed 82 days ago
#770
by SF filing activity
among SF specialty contractors, 90 days to Oct 4, 2026
8
projects
from 40 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
$300K Sunset/Parkside single-family renovation
Last active Sep 2025 · 2 filings · Hydronics: specialty contractor
Work category: 1p; shower pan inspection
GC named · Architect identified · Engineer identified · 3 specialty contractors identified
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$19K Pacific Heights single-family renovation
Last active Sep 2025 · Hydronics: specialty contractor
Work category: 1p; shower pan
GC named · 2 Design firms identified · 8 specialty contractors identified
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$23K Inner Sunset single-family renovation
Last active May 2025 · Hydronics: specialty contractor
Work category: 1m; installing flue and one fireplace
GC named · 2 Design firms identified · 6 specialty contractors 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.
8 project records for Hydronics Inc.: addresses, values, project teams
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Typical project$9K–$77K$23K typicalLast filed82 days agoInner Sunset · Jul 17, 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
Chinatown20%
Haight Ashbury20%
Inner Sunset20%
Marina20%
Mission20%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| 1 | Acco Engineered Systems Inc. | Architecture | 1 | |
| 2 | Double -D Engineering | Engineering | 1 | |
| 3 | Harvey Architecture | Architecture | 1 | |
| 4 | LTD Architecture | Architecture | 1 | |
| 1 | Blaze Fireplaces Of No Cal | Plumbing contractor | 2 | |
| 2 | Allied Fire Protection | General contractor | 1 | |
| 3 | Control Fire Inc. | General contractor | 1 | |
| 4 | D K G Construction Inc | General contractor | 1 | |
| 5 | Mc Millan Electric | 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 relationships1 firmFirms this one appears with on more than one project, out of 27 in total.
Permit speed—Too few filings with a recorded issue date to publish a median.
Frequently asked questions
How many SF projects does Hydronics Inc. appear on?▾
PermitPipeline tracks 8 San Francisco building-permit projects for Hydronics Inc. (Jan 2025 to Sep 2025). 2 had filing activity in the last 90 days.
Does Hydronics Inc. work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of Hydronics 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 Hydronics Inc. work?▾
20% of Hydronics Inc.'s tracked San Francisco projects are in Chinatown.
What is a typical Hydronics Inc. project worth?▾
The median declared value across the 7 San Francisco projects Hydronics Inc. has on record that state one is $23K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as Hydronics Inc.?▾
Hydronics Inc. most frequently appears on the same San Francisco permit filings as Blaze Fireplaces Of No Cal, Acco Engineered Systems Inc., Allied Fire Protection. Appearing together indicates association on shared filings, not a proven working relationship.
Is Hydronics Inc. a plumbing contractor?▾
Hydronics 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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