Can I install heated floors in an existing bathroom?

Yes, you can absolutely install heated floors in an existing bathroom, and it's one of the most popular comfort upgrades Toronto homeowners make during bathroom renovations. The process involves removing your current flooring and installing either electric radiant heating mats or a hydronic (water-based) system before laying new tile or other suitable flooring.

Electric radiant systems are the most practical choice for existing bathrooms in Toronto homes. These thin heating mats or cables can be installed directly over your existing subfloor with minimal height increase (typically just 1/8" to 1/4"). The system connects to a dedicated 240V circuit and uses a programmable thermostat to maintain your desired temperature. Installation typically takes 1-2 days for an average bathroom, plus time for new flooring installation.

Hydronic systems, while more efficient for larger areas, are rarely cost-effective for single bathroom retrofits. These require connecting to your home's boiler system or installing a dedicated water heater, making them better suited for whole-home installations or major renovations where multiple rooms are being upgraded simultaneously.

For Toronto's climate, heated bathroom floors provide exceptional comfort during our long winters, and many homeowners report it's their favorite renovation upgrade. The system works particularly well under ceramic tile, porcelain, or natural stone flooring. Luxury vinyl and engineered hardwood can also work with lower temperature settings, but carpet isn't recommended as it insulates against the heat transfer.

Electrical requirements are crucial - heated floors require a dedicated circuit and GFCI protection, which means you'll need an ESA-certified electrician to handle the electrical connections. The Electrical Safety Authority requires permits for this work, and proper installation is essential for both safety and warranty coverage. Never attempt the electrical connections yourself, as bathroom electrical work has strict safety requirements due to moisture concerns.

Installation costs in the Toronto market typically range from $12-18 per square foot for electric systems, including materials and professional installation. For a standard 50 square foot bathroom, expect $600-900 for the heating system plus $1,500-3,000 for tile removal, installation, and electrical work. The project usually requires removing your existing flooring down to the subfloor, so factor in complete floor replacement costs.

Professional installation is strongly recommended for this project. While the heating mats themselves aren't overly complex to lay out, the electrical connections, proper insulation, and waterproofing details require expertise. Improper installation can lead to system failure, electrical hazards, or moisture problems in your bathroom.

Next steps: Consult with both a bathroom renovation contractor and an ESA-certified electrician to assess your electrical panel capacity and plan the installation. Most contractors can coordinate both trades, and the work integrates well with other bathroom updates like vanity or shower renovations.