Dave Katz
- Listed as
- authorized agent-others, contractor
- Firm
- Gdm Group Dba Trio Heating & Air
- Based in
- San Jose
- On San Francisco permits
- Aug 2023 to Sep 2026
16 permits since 2000 (contractor on 16 permits, authorized agent-others on 1 permit): 8 completed, 6 in progress, 2 never finaled.
This is the city’s permit record, not a license check: the role and the number come from what was written on each permit (the number spelled one way). It does not show whether the license is current. Their ranked record as a contractor is on their contractor page. How to read these records
Most recent permits
| Filed | Outcome | Address | Contractor | Work described on the permit | Declared cost |
|---|---|---|---|---|---|
| Sep 30, 2026 | In progress issued Sep 2026 | 11 Iris Av | Gdm Group Dba Trio Heating & Air | furnace change like for like same location in garage and duct replacement rf 5 supply runs like for like.Details
furnace change like for like same location in garage and duct replacement rf 5 supply runs like for like. | $9,830 |
| Sep 30, 2026 | In progress issued Sep 2026 | 9 Iris Av | Gdm Group Dba Trio Heating & Air | furnace change like for like same location in garage and duct replacement rf 5 supply runs like for like.Details
furnace change like for like same location in garage and duct replacement rf 5 supply runs like for like. | $9,830 |
| Jul 18, 2025 | Completed final sign-off Jan 2026 | 735 30th Av | Gdm Group Dba Trio Heating & Air | replacing ductwork permit. 10 supplies, 2 returns.Details
replacing ductwork permit. 10 supplies, 2 returns. | $500 |
| Jul 9, 2025 | Completed final sign-off Jan 2026 | 657 04th Av | Gdm Group Dba Trio Heating & Air | duct work, 6 supplies, over 40 ft.Details
duct work, 6 supplies, over 40 ft. | $13,800 |
| Apr 22, 2025 | In progress issued May 2025 | 2950 Baker St | Gdm Group Dba Trio Heating & Air | install ductless mini split heat pump, 4 ton, 14 seer, 54000 btv in backyard 200 amp panel.Details
install ductless mini split heat pump, 4 ton, 14 seer, 54000 btv in backyard 200 amp panel. | $20,710 |
| Jan 7, 2025 | Completed final sign-off Jan 2025 | 116 Park St | Gdm Group Dba Trio Heating & Air | changeout ductwork only, 5 supplies. like for like. hvac system.Details
changeout ductwork only, 5 supplies. like for like. hvac system. | $6,549 |
| Aug 1, 2024 | In progress filed Aug 2024, not yet issued | 481 Laidley St | Gdm Group Dba Trio Heating & Air | revision to pa # 2024-0606-3868 adminstrative permit to include additional scope of work" duct test exempt due to prescence of possible asbestosDetails
revision to pa # 2024-0606-3868 adminstrative permit to include additional scope of work" duct test exempt due to prescence of possible asbestos | |
| Jun 6, 2024 | Completed final sign-off Sep 2024 | 481 Laidley St | Gdm Group Dba Trio Heating & Air | 25 ft or more of duct work located in basement area of home. furnace permit already issued. ductwork connected to furnace. no structural work.Details
25 ft or more of duct work located in basement area of home. furnace permit already issued. ductwork connected to furnace. no structural work. | $3,372 |
| Jun 4, 2024 | Completed final sign-off Feb 2025 | 5946 Fulton St | Gdm Group Dba Trio Heating & Air | installing more than 25ft of ductwork to furnaceDetails
installing more than 25ft of ductwork to furnace | $3,430 |
| Jun 4, 2024 | Completed final sign-off Feb 2025 | 2330 43rd Av | Gdm Group Dba Trio Heating & Air | installing more than 25ft of ductwork to new furnaceDetails
installing more than 25ft of ductwork to new furnace | $3,430 |
| Feb 9, 2024 | In progress issued Feb 2024 | 2486 44th Av | Gdm Group Dba Trio Heating & Air | 2m; 40000 btus furancec/o same location like for likeDetails
2m; 40000 btus furancec/o same location like for like | $6,000 |
| Jan 22, 2024 | In progress filed Jan 2024, not yet issued | 2486 44th Av | Gdm Group Dba Trio Heating & Air | (2) interior ducts change out like for like (existing location)Details
(2) interior ducts change out like for like (existing location) | $6,000 |
| Jan 18, 2024 | Completed final sign-off Jan 2024 | 929 Monterey Bl | Gdm Group Dba Trio Heating & Air | furnance relocation in garage. new duct work install metal kdDetails
furnance relocation in garage. new duct work install metal kd | $11,200 |
| Sep 20, 2023 | Completed final sign-off Nov 2023 | 485 Chenery St | Gdm Group Dba Trio Heating & Air | new heat pump and air handlerDetails
new heat pump and air handler | $15,000 |
| Aug 2, 2023 | Never finaled filed Aug 2023, never issued | 75 Lansing St | Gdm Group Dba Trio Heating & Air | replace (2) two heat pump condensers 3.5 ton 23 seer (roof top). and install new air handler 24k btus (closet).Details
replace (2) two heat pump condensers 3.5 ton 23 seer (roof top). and install new air handler 24k btus (closet). | $18,000 |
| Aug 2, 2023 | Never finaled filed Aug 2023, never issued | 254 Laguna Honda Bl | Gdm Group Dba Trio Heating & Air | install condenser 5 ton 16 seer (top of shed).Details
install condenser 5 ton 16 seer (top of shed). | $10,000 |