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.
As I contractor if I am installing a customers product or supplying my own, I am charging full overhead and profit above the install cost. I try not to allow customers to supply materials and when they do I tack on my overhead and profit in to the labor. Remodeling is one of the most time consuming services and if your not covering your overhead and profit in the materials and labor you will not last long in this business. At the end of the day after all said and done, making a 15% profit is respectable. Think about it, your the designer, the gofer, the physiatrist, the builder, shopper and the banker until you get paid. Never be intimidated to support your price, deliver a quality product and support it with proper pricing. Never let the customer supply there own materials. Movie theaters don't let you bring in your own pop corn, so why should contractors be any different.
I have a miserably small master bath with a particle board subfloor (house built 1969), so I must guy it. I bought toilet made for small bathrooms, and plan to pull the cabinet sink, replace with pedestal, raise storage like lighted bulkhead, demolish tile, and widen doorway from 28" to 32". I might gain 6" from tile removal alone, plus but another 6" on entrance with cabinet sink removal. Since large expense is in demolition, I could do that. But, install showers is tricky given the drain leveling so I'll hire a pro for that. Question: gutting, updating and repairing master bath is necessary, but to what extent should I go i, terms of resizing, which would entail bumping out wall into adjoining small room, which then adds expense of finishing that where window placement restricts encroachment. It's a nice older brick house that I bought before I realized the made of lapses and oversights by the home inspector (who also is a local top police official in a town with highly subjective law enforcement). I need to fix, list, well and leave. Any thoughts (and prayers much appreciated).
There are a wide range of costs associated with remodeling a bathroom, including size, the type of materials, its current condition, and the location. Homeonwers spend on average between $15,000 and $25,000 in their bathroom renovation. For example, the average cost of a 100 square foot master bathroom with tile walls and flooring, new fixtures, double vanity, and walk in shower with separate tub is around $20,000.