Mechanical Permits
Mechanical permits with the right calcs attached.
Mechanical permits for HVAC equipment, ductwork, gas piping, and ventilation. PermitJunkie ties Manual J/D/S to your jurisdiction's IMC/UMC edition.
Overview
HVAC change-outs
We surface Manual J/D/S requirements, refrigerant-line-set length checks, and condensate routing for like-for-like and upsized swaps.
Gas piping
Sizing tables, BTU loads, and shutoff-valve locations are pre-checked against the adopted IFGC / UPC.
Ventilation
Kitchen hoods, bathroom exhaust, and dryer venting are all bundled with the right test/balance forms.
Frequently asked questions
- Do I always need a mechanical permit?
- In most U.S. jurisdictions, yes — any mechanical work that affects structure, life-safety, or utility connections requires a permit. PermitJunkie checks your local rules against your project scope so you never guess.
- How long does a mechanical permit take to approve?
- Approval times vary by municipality and project complexity — from 24 hours for a counter permit to 6–12 weeks for plan review. PermitJunkie's Municipality Intelligence shows live processing times for every jurisdiction in our network.
- What documents do I need for a mechanical permit?
- Typical packets include an application, scope of work, site plan, scaled drawings, and licensed-contractor proof. PermitPal builds your personalized checklist in seconds based on your address and project type.
- Can PermitJunkie submit the mechanical permit for me?
- Yes. Our Permit Filing Concierge tier handles preparation, final AI review, and submission to your jurisdiction, then tracks status until it's issued.