GDM Group Dba Trio Heating & Air is a general contractor with 20 tracked San Francisco building-permit projects on record, with the latest filing in that record 7 days ago. Its filings (Jan 2025 to Sep 2026) are concentrated in Outer Richmond and Castro/Upper Market, 100% residential. A typical project in the record declares $7K–$13K. If you work at GDM Group Dba Trio Heating & Air, claim this page to add a description.
Filed 7 days ago
#501
by SF filing activity
among SF general contractors, 90 days to Oct 4, 2026
20
projects
from 44 filings
1/16
active week
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
$21K Outer Richmond HVAC upgrade
Active 6 months ago · 9 filings · GDM Group Dba Trio Heating & Air: GC
Electrical for hvac system. customer stated less than 10 outlets. reference pm20260317008
GC named · 2 specialty contractors identified
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$13K Presidio Heights renovation
Grade DActive 7 days ago · GDM Group Dba Trio Heating & Air: GC
Furnace change like for like same location in garage and duct replacement rf 5 supply runs like for like
GC named
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$10K Presidio Heights renovation
Active 7 days ago · GDM Group Dba Trio Heating & Air: GC
Furnace change like for like same location in garage and duct replacement rf 5 supply runs like for like
GC named
View project details →
17 more
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20 project records for GDM Group Dba Trio Heating & Air: addresses, values, project teams
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Typical project$7K–$13K$10K typical58% of the SF median ($17K)Last filed7 days agoPresidio Heights · Sep 30, 2026Last 90 days2 active2 newly filed
Filing activity · 16 weeks to Oct 4, 2026 · peak Sep 2026
JUN
JUL
AUG
SEP
Project mix · by use
Residential100%
Geography · by neighborhood
Outer Richmond28%
Castro/Upper Market18%
Excelsior18%
Inner Richmond18%
Marina18%
Shared-project connections
| # | Firm | Primary role | Shared | Relative |
|---|---|---|---|---|
| None on shared filings. | ||||
| 1 | Axia Solar Corp | General contractor | 1 | |
| 2 | Dennis Webb Construction | General contractor | 1 | |
| 3 | DKJ Associates Inc Dba Pella Doors & Win | General contractor | 1 | |
| 4 | Elm Roofing Contractors Inc Dba Element | General contractor | 1 | |
| 5 | Blaze Fireplaces Of No Cal | Plumbing 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 licenseCSLB Contractor #1061107As filed on 4 permits
Repeat working relationships0 firmsFirms 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 GDM Group Dba Trio Heating & Air appear on?▾
PermitPipeline tracks 20 San Francisco building-permit projects for GDM Group Dba Trio Heating & Air (Jan 2025 to Sep 2026). 2 had filing activity in the last 90 days.
Does GDM Group Dba Trio Heating & Air work on commercial or residential projects?▾
Across its tracked San Francisco filings, 0% of GDM Group Dba Trio Heating & Air'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 GDM Group Dba Trio Heating & Air work?▾
28% of GDM Group Dba Trio Heating & Air's tracked San Francisco projects are in Outer Richmond.
What is a typical GDM Group Dba Trio Heating & Air project worth?▾
The median declared value across the 19 San Francisco projects GDM Group Dba Trio Heating & Air has on record that state one is $10K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as GDM Group Dba Trio Heating & Air?▾
GDM Group Dba Trio Heating & Air most frequently appears on the same San Francisco permit filings as Axia Solar Corp, Dennis Webb Construction, DKJ Associates Inc Dba Pella Doors & Win. Appearing together indicates association on shared filings, not a proven working relationship.
Is GDM Group Dba Trio Heating & Air a general contractor?▾
GDM Group Dba Trio Heating & Air is listed as a general 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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