# Mechanical (HVAC) permit MEC2026-00689 at 3356 Sentinel Dr, Boulder

Boulder Planning and Development Services permit MEC2026-00689: issued May 4, 2026 for mechanical (hvac) work at 3356 Sentinel Dr. INSTALL REPLACEMENT 99% 70K BTU FURNACE AND REPLACE EXISTING AC W/A NEW 25 SEER 2 TON HEAT PUMP W/RECONNECTS ON BOTH FURNACE & HEAT PUMP in single family detached dwelling - includes electrical PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: All new plastic glued vents for fuel burning appliances must undergo pressure testing. To facilitate the inspection process, please provide photographic evidence of the pressure test directly to the assigned inspector on the day the rough mechanical inspection is scheduled. Approved tests: 10 ft water test, 5 PSI positive pressure, or Negative 5 psi air pressure test for 15 Minutes.

- Permit number: MEC2026-00689
- Issued: May 4, 2026
- Type of work: Mechanical (HVAC) (city: Mechanical Permit, Mechanical with Electrical)
- Status: Finished (city: Letter of Completion)
- Reported cost: $23,991
- ZIP code: 80301
- All permits at this address: https://nearbypermits.com/boulder/address/3356-sentinel-dr/

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 14:18 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 3356 Sentinel Dr: https://nearbypermits.com/boulder/address/3356-sentinel-dr/