Yes, if an existing GFCI-protected circuit can carry the heating mat. We install electric radiant mats under the tile, controlled by a programmable thermostat, and check the circuit before planning one. A mat that needs its own new circuit requires a permit and is outside the projects we take on.
Electric radiant heat uses a thin mat set in the floor assembly beneath the tile. A programmable thermostat lets you warm the floor for the hours you actually use the room, such as early morning. Because the mat goes under the tile, the time to add it is when the old flooring is already coming out. It works best under porcelain or natural stone, which hold and pass along heat well. Heated floors are most often part of a primary suite remodel, which typically runs $35,000 to $50,000+.
Whether your bathroom qualifies comes down to the existing electrical circuit. The mat adds a steady load, so that circuit needs enough spare capacity after accounting for what it already serves, such as outlets, lights or a fan, and it needs GFCI protection. We check this at the consultation, along with the size of the floor area to be heated. A smaller mat placed in the open floor area, not under the vanity or toilet, keeps the load down and puts the warmth where your feet actually land.
If the existing circuit cannot carry the mat, a new circuit would be required, and that means a permit. We keep our projects within the scope that does not require a building permit, and we tell you at the first visit if what you have in mind would need one. In that case, the room can still be comfortable without floor heat. A porcelain floor paired with a good bath mat costs less, and you can put the money toward the shower, the vanity or better lighting on the existing circuits.
Answered by Legacy Construction & Design · CA License #790442 · October 2026