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How much does it cost to install radiant heat flooring?

Author

Sarah Cherry

Published Mar 09, 2026

How much does it cost to install radiant heat flooring?

Cost to Install Radiant Heat To have a pro install radiant floor heating, expect to pay around $20 per square foot, which also includes materials.

Can concrete floors have radiant heat?

To start, radiant floor heating in your polished concrete floors can provide a warm floor that is evenly distributed throughout a particular room. Rather than purchasing an external radiator or forced-air system to provide heat, you can simply rely on the inherent properties of your polished concrete floor.

How thick should concrete be for radiant floor heating?

Radiant heat can be used in slabs as thin as 1.5″ (such as in cases where it’s placed over existing floors). However, for new construction, the slab should be typically at least 4″ thick and is dependent upon the soils conditions in your area.

Can you install heated floors on concrete slab?

You can install floor heating with your existing concrete floor or subfloor. If you already have a polished concrete floor, you may be able to fit insulation and a low-profile electric floor heater before adding a new layer of leveling compound and a polished concrete overlay.

How much does it cost to heat a concrete floor?

How much does adding radiant floor heating in your concrete slab cost? Costs for a professional to install radiant heating into concrete average $11 per square foot for hydronic systems and $10 per square foot for electric versions.

Is radiant heat more expensive?

Radiant heating is significantly more expensive to install than a forced-air system is. Radiant heating typically ranges from $14,000-$48,000 depending on the type of system (electronic, air-heated, hydronic), whereas furnace installations usually cost $4,500-$9,000 and heat pumps range from $2,500-$10,000.

How do you install radiant heat on concrete?

Starts here4:45How to Install DIY Radiant Floor Heating |This Old House – YouTubeYouTube

How do you insulate a slab of radiant heat?

Once the vapor barrier is in, you should insulate the slab from the earth. Extruded or expanded polystyrene (rigid blue or pink board) is the material of choice. Typically, we recommended 2″ but some states now require 3″ or R-15. Some promote the use of thin sheets of foil/bubble or an insulating blanket.

How deep is concrete in radiant tubing?

This means there’s an optimal tube depth where the slab delivers maximum heat output. The simulations I ran suggest it’s about 1/4 of the slab thickness down from the slab surface. This depth could vary depending on flooring resistance and other factors.

Are heated concrete floors worth it?

Hydronic Heated Floors Larger systems could cost well over $50,000, but are very energy efficient over their lifetime. If you run cold, the simple joy of warm feet is worth the relatively low cost for an electric system. You’ll especially love it with tile or concrete floors.

Can you heat a whole house with radiant floor heating?

Yes! The short answer to “Can you heat your entire home with radiant floor heating”? is yes. In theory, as long as you have a floor, you can utilize radiant floor heating. The heating system goes right into the floor, heating water or using electricity in an infrastructure of pipes.

How expensive is radiant heat per month?

Radiant Heat Cost Per Month You can expect to pay just $3 to $7 a month to heat a room this size. According to Contractor Magazine, installing radiant floor heating in your entire house could save you up to 30% or 40% on your monthly heating bills — though 12% is the average savings.