Rotten Floor Under Toilet Cost

Discover swollen discolored wood a sure sign that the subfloor needs replacing.

Rotten floor under toilet cost.

If only the area directly below the flange is rotted you can install a two piece steel closet flange support. If only a few joists are rotted primarily at the bottom they can be repaired using a process known as sistering after the rot is cleaned away and the timber treated to prevent more problems a new joist is laid beside the old one and fastened to it. The cost to repair a subfloor starts at 36 89 56 75 per square foot but can vary significantly with site conditions and options. But if your floor is severely rotted say more than an inch beyond the flange you re stuck replacing the flooring around the toilet.

Peel the flooring several inches beyond the rotted area. Enough to create two square frames to fit between the floor joists and under the cuts. Get fair costs for your specific project requirements. Because of leaky toilet seals pest inspectors often find dry rot in the subflooring beneath the toilet area.

Cost to repair this type of damage will vary greatly depending on the extent of the damage and the type of flooring. The average cost to replace or repair a plywood subfloor in a 306 square foot room costs 555 or between 490 and 600 the average cost to install a new plywood subfloor is 620 or between 572 and 720. See typical tasks and time to repair a subfloor along with per unit costs and material requirements. Cost to replace repair or install subfloor.

It goes under the flange and transfers the load of the flange and toilet and you out onto more solid surrounding wood. A spongy floor around the toilet is a strong indication that the subfloor has absorbed water. In this case the damage was limited to the corner of the floor between the water closet and the tub.