In Ottawa, HVAC permits are required for: installing a new furnace, boiler, or heating system, installing central air conditioning, installing a heat pump (air-source or ground-source), modifying or extending ductwork, installing a new HRV or ERV, installing gas piping for heating equipment, and installing a wood-burning fireplace or stove (WETT inspection also required).
In Ottawa, HVAC permits are required for: installing a new furnace, boiler, or heating system, installing central air conditioning, installing a heat pump (air-source or ground-source), modifying or extending ductwork, installing a new HRV or ERV, installing gas piping for heating equipment, and installing a wood-burning fireplace or stove (WETT inspection also required). Work that typically does NOT require a permit: replacing an existing furnace with the same type and capacity in the same location (check with your contractor — some jurisdictions vary), replacing an air filter or thermostat, and cleaning ducts. HVAC permit fees: $200–$500 depending on scope. Gas permits (TSSA) are separate and cost $100–$300.
Ontario HVAC work involves multiple regulatory bodies: TSSA (Technical Standards and Safety Authority): Oversees gas-fired equipment (furnaces, water heaters, fireplaces). Gas work must be done by a TSSA-registered contractor with certified gas fitters. Ontario College of Trades: HVAC technicians hold certificates of qualification as refrigeration and air conditioning mechanics (for AC and heat pump work). When hiring an HVAC contractor in Ottawa, verify: TSSA registration for gas work, Ontario College of Trades certification for refrigeration work, WSIB coverage and liability insurance, and that they obtain all required permits. A qualified HVAC contractor handles all permit applications, inspections, and regulatory compliance as part of their service.
Furnace replacement: $4,000–$8,000 including permit. Replacing an aging furnace with a high-efficiency model (96%+ AFUE). Gas and building permits required. Timeline: 1 day for installation, plus inspection scheduling. Central AC installation: $3,000–$6,000 including permit. Adding AC to an existing forced-air system. Electrical and building permits required. Timeline: 1–2 days. Heat pump installation: $8,000–$15,000 including permits. Air-source heat pumps provide both heating and cooling. Electrical, building, and potentially gas permits required. Timeline: 1–2 days. Ductwork modification: $2,000–$6,000 including permit. Extending or reconfiguring ductwork for renovations. Building permit required. Timeline varies with renovation scope. HRV/ERV installation: $2,000–$4,000 including permit. Required for new construction and recommended for renovations that improve air tightness. Building permit required.
HVAC inspections are conducted by City of Ottawa building inspectors and TSSA inspectors: City building inspection: Verifies ductwork installation, equipment placement, and clearances meet building code. Scheduled through the City's inspection line. TSSA gas inspection: Verifies gas piping, connections, venting, and equipment installation meet gas safety code. The TSSA inspector issues a compliance certificate that your gas utility requires before turning on new gas equipment. Common inspection failures: improper venting (high-efficiency furnaces require specific venting configurations), inadequate combustion air supply, incorrect gas pipe sizing, insufficient clearances around equipment, and missing or improper CO detection. Schedule inspections promptly after installation. Gas equipment cannot be operated until the TSSA inspection passes and the utility approves the connection.
Ottawa homeowners can access significant rebates for HVAC upgrades: Enbridge Home Efficiency Rebate: Up to $5,000 for qualifying heating system upgrades, including furnaces, boilers, and heat pumps. Canada Greener Homes Grant: Up to $5,000 for energy efficiency improvements including HVAC upgrades. Canada Greener Homes Loan: Up to $40,000 in interest-free financing for eligible energy upgrades. Hydro Ottawa programs: Incentives for heat pump installation and other electrification projects. To qualify for most rebates, you need a pre-retrofit EnerGuide home evaluation ($300–$500) to establish baseline energy performance, then a post-retrofit evaluation to verify improvement. Your HVAC contractor should be familiar with these programs and can guide you through the application process. High-efficiency HVAC equipment typically reduces heating costs by 20–40% compared to standard-efficiency equipment. The combination of energy savings and available rebates makes upgrading Ottawa HVAC equipment a strong financial decision.
Yes in most cases. A building permit and TSSA gas inspection are required for furnace installation. Your HVAC contractor should handle all permits and inspections as part of their service.
Building permits for HVAC work cost $200–$500. TSSA gas permits cost $100–$300. These fees should be included in your HVAC contractor's quote. Total permit costs: $300–$800.
No. Gas furnace installation must be done by a TSSA-registered contractor with certified gas fitters. Self-installation is illegal and extremely dangerous. Even non-gas HVAC equipment requires permits and inspections.
Enbridge offers up to $5,000 for heating upgrades. The Canada Greener Homes Grant provides up to $5,000. Interest-free loans up to $40,000 are available. A pre-retrofit energy evaluation is required for most programs.
Furnace replacement: 1 day. Central AC addition: 1–2 days. Heat pump installation: 1–2 days. HRV installation: 1 day. Add time for permit applications (1–2 weeks) and inspection scheduling (3–5 business days).