Bathroom Remodel Planning Guide: Waterproofing, Layout and Quotes
Corvellis Editorial
Plan the bathroom behind the tile before choosing the tile itself. Your written scope should explain how the wet area will be built, what can remain, and what happens if demolition reveals damage. This guide is a homeowner's discussion checklist, not instructions for installing a shower.
Document the starting condition
List recurring leaks, stains, loose finishes, persistent condensation, and fixtures that do not work properly. Photograph visible conditions without dismantling anything. Tell the contractor whether a problem happens only during shower use or is present all the time. Observations help direct an inspection but do not establish the cause.
Decide whether fixture locations must change. Ask for a separate option that retains them, so you can see the trade-off before committing to a new layout. Also identify who needs to use the room, storage needs, and any accessibility goals that the designer should consider.
Ask for a waterproofing specification
Schluter explains that tile and grout are not themselves waterproof. A proposal saying only “install tile” leaves an important question unanswered. Ask the installer to identify the complete approved wet-area assembly and manufacturer instructions they will follow; this is not a recommendation to mix products from different systems.
| Checkpoint | What to request |
|---|---|
| Before ordering | Named system, drain compatibility, and details for niches, benches, and penetrations. |
| After opening the area | Photographs and an explanation of damaged materials requiring additional work. |
| Before covering waterproofing | Confirmation of applicable tests or inspections and who records the results. |
| At handover | Product records, care instructions, and workmanship contact information. |
Separate necessary repairs from optional finishes
Use three scope categories: correcting the underlying problem, rebuilding the functional room, and visual upgrades. Replacing deteriorated backing is not the same decision as choosing a more expensive decorative tile. If both are presented in one change order, ask for separate prices and explanations.
Agree on an authorization method before demolition. For example, request a photo, quantity, proposed repair, price, and schedule impact before approving additional work. This is a planning procedure, not a claim that every hidden condition can be priced in advance.
Plan for living without the bathroom
Ask when the toilet, sink, and shower will each be unavailable. One room can be partly usable while another activity is delayed, but only the contractor can confirm safe access. If this is the only bathroom, resolve temporary arrangements before starting. Do not assume that apparent completion of tile work means the shower is ready for immediate use; obtain the system's curing and use instructions.
Include fan and exhaust-route assessment in the scope. The EPA remodeling guidance emphasizes moisture control and occupant protection. Ventilation planning should not be reduced to choosing a decorative grille.
Finalize selections that affect construction
Provide fixture specifications early, especially concealed components. Keep a list of owner purchases, delivery dates, and who verifies compatibility. Use our fixture selection checklist for this step and the bathroom cost guide for planning context. Local requirements and product instructions take priority over this editorial checklist.
