cost to put electric floor heat in bathroom
1 This Old House estimates the cost of electric radiant heat in an average-size bathroom at $400-$700 (including new tile) for a thin electric mat installed in thinset cement and controlled by a timer-thermostat, and says it is not a difficult do-it-yourself job for those who know how to set floor tiles. If concrete is added to an existing floor when installing hot water radiant heat, it might be necessary to reinforce the floor supports. 2  The additional cost will depend on the amount of additional support needed, but if this is required be sure it's included in all cost estimates.