Don’t want your budget to skyrocket? Don't move your plumbing. On the surface, switching your sink and toilet around may look easy enough, but the problem lies underneath and all the costs involved in moving that plumbing. Besides, if you spend less money on moving fixtures, you’ll have more to spend on that new sleek shower system or vanity you’ve been eyeing.
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.
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.
I agree with everything you said. I think the trick is to convey those concerns when discussing what work will be needed. Everyone will have concerns but if you come across as too needy or pushy they may think you will be a pain in the butt homeowner. I have seen this before where you have to come back 3 or 4 times for something not dealing with the work, but you are trying to be polite and helpful for business. Word of mouth is the best way to get more buisness, in my opinion.
Once your new materials have arrived, the tearout begins. This involves removing everything from your bathroom right down to the studs. At this point in time, if there are issues with water leaks or mold, they can be addressed. It is at this stage that hidden issues are usually uncovered. Keep in mind that issues can dramatically impact your costs, depending on what is found. For example, mold remediation starts at $500 and water damage can cost as much as $2,700.
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