The remodel is needed due to water leakage from the tub surround into the wall cavity. I recommended she get an estimate of extra costs that cannot be foreseen until demolition occurs but would be entailed if the contractor has to do any structural work like putting in new studs and or has to install new insulation. I urged her to get at least an upper ceiling estimate before work begins lest the contractor make her an offer she can't refuse once the room is gutted. I urged her to be flexible on any adjustment to the estimate that can be made only after demolition begins. But I told her to insist that the rest of the estimate be binding. No surprises.
We own a kitchen and bath company. If you are going to do the work yourself, you will save money....if you act as the GC, that is great as long as you have the time to manage the project. If you are using a guy out of his truck, the job will be less expensive. BUT check their references and insurance. WE run a legitimate business and a showroom. We are not inexpensive but are not high priced. YOU MUST have realistic expectations of what things cost, both in material and labor costs. We pull permits also....all this costs money. We have 30 years in business. Do not expect a full demo of a bathroom to be $11,000 in CT. If someone gives you a price like that RUN, it is too good to be true. You are looking at 18,000 and up. Cheaper does not mean better. If you are buying all the materials at HD or Lowes, good luck. You will redo your space one more time before you move. Spend a little more on a good, experienced contractor now....in the end it will be worth it.
I just renovated a 6X12 bathroom. Old cast iron tub removed. Removed and saved existing vanity and vanity top. Removed the toilet and replaced the existing rotten flooring and added on to the existing partially rotten floor joist. Removed the drywall and tile from around the old tub. After the new flooring was in I had to modify the existing plumbing to accommodate the new tub and shower surround. The hot and cold water lines had to be raised to fit the surround because the new tub is taller and the drains had to be installed and moved to fit the new tub. Drywall was finished and painted. New faucets,New tub,Tub Surround, and flooring materials were purchased by the home owner. Labor cost was 4,584.00
The average cost to gut and demolish a bathroom is $400 to $2,000. Prices depend on the room size, type of materials, which fixtures are being removed, if walls are being demolished, and if any damage is found in the subflooring or inner wall structure. You can DIY to save money, but hire a professional to inspect your electrical wiring and plumbing.

Top that with contractors that don’t even provide a drawings, plans or official documentation of their intent and we can see where their seemingly in control of the market. Their swagger is even more overloaded when they’re excited to come view your home yet can’t call you back week after week months later because they’re too busy to even consider your meager $30-50k one-room remodel.
A punitive approach to what could be unforseen and atypical delays may be a bad idea. I would suggest offering a bonus for the job being completed early rather than a penalty for it being delayed. If material is ordered, we can't make it arrive faster if something delays the shipment. We recently ordered a bathtub requested by a customer. It was promised by our supplier for a Wednesday delivery. Bad weather hit Texas and it just didn't leave the warehouse until the following Monday. It blew up our schedule for the project and it wasn't anyone's fault or mistake. If we have an employee critical to the project get sick or injured, we may not be able to get things done as originally scheduled. Jobs can get off schedule for a lot of reasons outside the contractor's control. Charging them for those things is likely to turn them away.
The angles where any two planes meet in a wet area, such as the shower, tub, and countertop need to be filled with a flexible material to absorb movement and seal up this section to keep it watertight. This is usually done with some form of caulk 6, either latex or silicone. A tube of caulk 6 costs around $20 and this is usually installed with the tile, shower, or counter with the cost included in the tiling.
I just renovated a 6X12 bathroom. Old cast iron tub removed. Removed and saved existing vanity and vanity top. Removed the toilet and replaced the existing rotten flooring and added on to the existing partially rotten floor joist. Removed the drywall and tile from around the old tub. After the new flooring was in I had to modify the existing plumbing to accommodate the new tub and shower surround. The hot and cold water lines had to be raised to fit the surround because the new tub is taller and the drains had to be installed and moved to fit the new tub. Drywall was finished and painted. New faucets,New tub,Tub Surround, and flooring materials were purchased by the home owner. Labor cost was 4,584.00
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