Interior bathroom demolition costs $1,000 to $2,300. Prices can go higher if you’re removing and moving walls to create a different footprint. For the experienced DIYer, this is a good place to save money by doing it yourself or assisting the contractor. However, demo can get expensive quickly if you take out a load bearing wall, cut electrical lines or break a water pipe. Avoid the risk by hiring a pro.
Interior bathroom demolition costs $1,000 to $2,300. Prices can go higher if you’re removing and moving walls to create a different footprint. For the experienced DIYer, this is a good place to save money by doing it yourself or assisting the contractor. However, demo can get expensive quickly if you take out a load bearing wall, cut electrical lines or break a water pipe. Avoid the risk by hiring a pro.

Follow Fig. B, for the new drain/vent plan. The new shower drain is vented separately into the main stack (Photos 10, 12 and 13). Most bathrooms have the main stack positioned directly behind the toilet. The wall-mounted toilet shown here cannot be positioned directly behind the stack because there’s not room for the necessary elbows. If your stack is more than 12 in. to the side of the existing toilet, you can keep the same location for the wall-hung toilet. But if it’s directly behind it, you’ll need to swap the sink and toilet locations like we did.
The parts of the country with the worst ROI, ranging between 58.8 percent and 59.2 percent, are the East North Central region (Wisconsin, Illinois, Indiana, Michigan and Ohio), the West North Central region (North Dakota, Minnesota, South Dakota, Nebraska, Iowa, Kansas and Missouri) and the Middle Atlantic region (Pennsylvania, New Jersey and New York).
Low-flow toilets, which use 1.6 gallons of water per flush, are required by law in all new and remodeled baths. Pressure-assisted toilets effectively clear the bowl with one flush, but make considerable noise in the process. Gravity models sometimes require two flushes to clean the bowl properly. For maximum efficiency, choose a bowl with a large water surface. Make sure there's sufficient space around the toilet for comfortable access—ideally, at least 16 inches from the centerline of the toilet and walls or fixtures on either side. Also allow at least 30 inches from the front of the toilet to the nearest object.
A DIY bathroom remodel is a big project. If you can only work weekends, your bathroom will be out of commission for two months or more. You’ll need all your expertise as an experienced do-it-yourselfer because you’ll have to tackle electrical, plumbing, tiling, drywalling, taping and even exterior siding. In this DIY shower remodel article, we’ll deal mostly with the nuts and bolts of ripping out existing plumbing and replacing it correctly with new, easily installed PVC piping.
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