Replace like for like residential boiler/ add new expansion tank/backflow and auto vent
Mechanical (HVAC) at 3117 Bell Dr, Boulder
Boulder Planning and Development Services permit MEC2026-00401: issued Mar 19, 2026 for mechanical (hvac) work at 3117 Bell Dr. Replace like for like residential boiler/ add new expansion tank/backflow and auto vent. Also correct venting on existing tankless water. 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
- MEC2026-00401
- Issued
- Type of work
- Mechanical (HVAC)
- Status
- Finished
- Reported cost
- $6,750
- ZIP code
- 80301
- City's category
- Mechanical Permit, Mechanical HVAC/Solar
- City's status
- Letter of Completion
- Source
- Boulder Planning and Development Services permit data (this record)
Type of work and status are our own standard labels, so permits compare across cities. The city's wording is in the "City's category" and "City's status" rows. We show costs under $100 as not listed, because filers often enter $0 or $1 when the city doesn't require a cost.
All permits at 3117 Bell Dr, and what's permitted nearby
Boulder Planning and Development Services updated its data Oct 6, 2026. We checked it Oct 7, 00:19 UTC. See the city's official records.
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