Damaged Floor Under Toilet

If the floor joists are extensively damaged it will be.

Damaged floor under toilet.

Ceramic tile high end vinyl and certain engineered wood materials can all help protect floors against future water damage repair. If your toilet has been leaking there is a danger the wooden subfloor will be damaged as a result. There can be water under engineered wood floor as well as water under wood laminate flooring. Water leaks can happen under various types of flooring.

Unless the toilet leaked for a long time the joists are probably not completely rotten and sistering a piece of 2 by 8 inch lumber by screwing it to a rotted joist is. But if your floor is severely rotted say more than an inch beyond the flange you re stuck replacing the flooring around the toilet. The cost to repair a subfloor starts at 36 89 56 75 per square foot but can vary significantly with site conditions and options. See typical tasks and time to repair a subfloor along with per unit costs and material requirements.

Regardless of the type of wood flooring if water or moisture has been sighted the method above can be used to remove the moisture and return the floor to a dry state. However this also presents an opportunity to install new waterproof flooring in the area. How to repair the sub floor under a leaky toilet. Total costs will depend on the extent of the damage and the ease of access to the joists through a basement or crawlspace but in general sistering averages 100 300 or more per joist and could run 1 000 3 000 or more to repair a tilted wavy or bouncy floor under an average room.

If the subfloor is spongy under your leaking toilet the toilet may have started to wobble and the problem is quickly going to get worse unless. It goes under the flange and transfers the load of the flange and toilet and you out onto more solid surrounding wood. Get fair costs for your specific project requirements. If only the area directly below the flange is rotted you can install a two piece steel closet flange support.