Radiant floor heat installation costs about $3,800 on average, according to HomeAdvisor. Typical installation costs can range from $3 to $7 per square foot, but certain factors can increase these costs.
Factor that can impact installation cost include the square footage of the space and the type of radiant heating. Three different types of radiant heating can be installed in floors: electric, radiant air and hydronic. The cost of installing electric radiant floors is higher than the cost of installing radiant air or hydronic floors.
The radiant heating equipment required may increase installation costs. For example, hydronic systems use a boiler to heat water and a pump to circulate the hot water, so a boiler and pump are installed. Other factors that may affect the installation cost include removing existing flooring and installing a programmable thermostat.