✓Gas permit required for furnace or boiler replacements
✓New ductwork and ventilation systems require permits
✓Licensed HVAC contractor must pull the permit in most provinces
✅ Exemptions
Routine furnace filter replacement, thermostat swap, or duct cleaning does not require a permit.
Required Inspections
1
Rough-in inspection
2
Final inspection
How to Apply in Fredericton
1
Check if you need a permit
Review the requirements above. For a hvac / mechanical, a permit is always required.
2
Prepare your documents
Gather drawings, site plans, and specifications. For larger projects, you may need drawings stamped by a licensed engineer or architect.
3
Submit to Building Inspection
Apply in person or by phone at 397 Queen St, Fredericton, NB E3B 1B5. Call 506-460-2260 to confirm requirements before visiting.
4
Wait for approval
Fredericton typically processes hvac / mechanical permits in 1–3 weeks. You will receive a permit number when approved.
5
Post permit & book inspections
Post your permit on site. Book required inspections at each stage — do not cover work before it is inspected.
FAQs — HVAC / Mechanical Permit in Fredericton
How much does a hvac / mechanical permit cost in Fredericton?
HVAC / Mechanical permit fees in Fredericton typically range from $100–$400. Fees are usually based on the estimated project value. Contact Building Inspection at 506-460-2260 to get an exact quote for your project.
Can I do my own hvac / mechanical without a contractor?
Homeowners can often pull their own permits for work on their primary residence. However, electrical and plumbing work typically requires a licensed trade. Check with Building Inspection for specific rules.
What happens if I skip the permit?
Unpermitted work can result in fines, orders to undo completed work, problems with home insurance claims, and difficulty selling your home. It is always worth the time to verify permit requirements.