Permit Required
Do you need a permit to install an HVAC system in Denver, CO?
Mechanical/HVAC work requires a mechanical permit. Homeowners must pass a homeowner exam or hire a licensed contractor; eligible work can be issued as a quick permit.
✓ Verified from official source
Source: Denver CPD — Applying for Permits as a Homeowner — Verified 2026-06-26
Permit rules vary by property and change over time. This is an informational guide, not legal advice — always confirm with Denver Community Planning and Development (CPD) / Development Services before starting work.
How to get the permit in Denver
Building department
Apply online
Phone
720-865-2710
Code in force
2025 Denver Building Code (based on 2024 IRC/IBC), adopted June 13, 2025
Need a permit pulled? Find a licensed HVAC contractor in Denver
Licensed HVAC contractors near you can handle the permit and the work — compare pros on our directory.
Find a HVAC contractor in Denver, CO →See Installing an HVAC System permit rules for other cities →