Does radiant floor heating require a permit in New Brunswick?

Yes, radiant floor heating installations in New Brunswick generally require permits, though the type of permit depends on whether you are installing a hydronic (hot water) or electric system. Both systems involve regulated trades, and getting the proper permits ensures your installation meets code requirements, protects your home insurance, and keeps your family safe.

Hydronic radiant floor heating circulates hot water through tubing embedded in or beneath your flooring. In New Brunswick, this type of system requires a plumbing permit and must comply with the NB Plumbing Installation and Inspection Act. The work must be performed by a licensed plumber, and the system must be inspected before being concealed by flooring. If the hydronic system connects to a new or modified boiler, additional mechanical permits may apply. This is not a DIY project — the combination of plumbing connections, pressure testing, and integration with your home's heating system demands professional expertise.

Electric radiant floor heating uses thin heat mats or cables installed beneath tile, stone, laminate, or engineered hardwood. The mats themselves generally do not require a permit to place on the subfloor, but the electrical connections absolutely must be completed by a licensed electrician who will pull an electrical permit. The installation must comply with the Canadian Electrical Code, and the circuit must be protected by a ground-fault circuit interrupter (GFCI). Many NB homeowners install electric mats in bathrooms and kitchens — these are more affordable than hydronic systems and easier to retrofit, but the electrical work is still a licensed-trade requirement.

From a flooring perspective, radiant heat adds important considerations for product selection in New Brunswick. Not all flooring products are rated for use over radiant heat. Solid hardwood is particularly risky — NB's already extreme humidity swings are amplified by the heating and cooling cycles of a radiant system, increasing the risk of gapping, cupping, and cracking. Engineered hardwood with a stable plywood core performs much better and is rated by most manufacturers for radiant heat use, provided the surface temperature stays below 27°C (80°F). Porcelain tile is the ideal flooring over radiant heat — it conducts warmth efficiently, handles temperature cycling without any dimensional change, and is the most popular pairing in NB bathrooms and mudrooms. Quality LVP can also work over radiant heat, but check the manufacturer's maximum temperature rating, as some products are limited to 26-27°C surface temperature.

Installation costs for radiant floor heating in NB run approximately $10-$20/sq ft for electric mat systems and $15-$30/sq ft for hydronic systems, not including the flooring itself. For a typical NB bathroom of 60-100 sq ft, an electric radiant mat system costs roughly $600-$2,000 installed including electrical connections.

Always hire a professional for radiant floor heating installation. The flooring installer and the plumber or electrician need to coordinate their work — the heating system must be tested before the flooring goes down, and the flooring must be installed according to both the flooring manufacturer's and the heating system manufacturer's specifications. Find qualified tradespeople through the New Brunswick Construction Network at newbrunswickconstructionnetwork.com.

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Looking for experienced contractors? The New Brunswick Construction Network connects homeowners with qualified professionals:

• Forever Epoxy Inc
• FRS Flooring Solutions
• The Garbage Guys Ltd
• Thirty Four Renovations
• 3Tone Construction Ltd