What should you budget?
Record hallway and doorway constraints and photograph the existing unit. Ask for the model dimensions, drain position and the installation sequence before placing an order.
Remodaro illustrative planning assumption per project for tub to prefab shower. The exact work in this guide can fall outside that broader scope.
Use the planner above to choose the work you actually want, enter your area or quantity and identify your project ZIP. The result shows a starting target alongside the wider planning range. For ZIPs we can resolve, the model uses a disclosed state-level regional price factor. The target is a budgeting aid, and actual contractor proposals depend on specifications and site conditions.
Check access before choosing the unit
Include stairs, turns and the bathroom doorway in the access discussion. Do not assume that a unit matching the alcove can be carried into it. Ask who takes responsibility for the final access check and any necessary finish restoration.
Compare a complete replacement scope
List demolition, hauling, wall preparation, base support, plumbing connection and the enclosure. Discuss how joints are sealed and what maintenance the selected system requires. Product and workmanship coverage should be documented separately.
What changes the cost of this project?
- Shower system and waterproofing approach
- Drain location and access below the floor
- Tile area, glass and accessibility details
Start by deciding whether the problem is a fixture, the wet area, or the entire room. A new shower arm will not solve a concealed pipe leak. For a conversion, confirm the drain position, shower footprint and entry height before choosing tile or glass. For a full remodel, record the room dimensions and every fixture you want to replace.
Build a scope that contractors can price
Make a short list of the work you want included and photograph the existing condition. Record approximate dimensions, access restrictions and anything you want to retain. Keep product names or inspiration images with the brief, but let the installer confirm final dimensions before anything is ordered. This gives every bidder the same starting information.
Hidden water damage, structural floor work, extensive plumbing relocation and specialty accessibility work require an on-site quote.
Ask for unknown work to be identified as an allowance or a unit-priced repair. Before accepting a change, request the reason, the price and the effect on the schedule in writing. Set a separate contingency based on the age and condition of the home and the uncertainty the contractor identifies, rather than treating every possible repair as already included.
Choose the contractor as carefully as the materials
Reviews can help you find candidates, but a star rating cannot verify the scope, credentials or availability for your home. Ask about projects similar to this one and check current licensing where required, insurance and recent references. Confirm who supervises the work and which trades are involved.
- Ask who installs and tests the waterproofing before tile is laid.
- Get the drain, shower base, glass and fixture specifications in writing.
- Check with your local building office about plumbing permits and inspections.
Compare written proposals using the same checklist
| Ask each contractor | What to look for |
|---|---|
| Scope and materials | Named products, quantities and exclusions |
| Permits and inspections | Who obtains approvals and schedules checks |
| Timeline | Start conditions, delivery dependencies and completion stages |
| Payment and changes | Written milestones and approval for extra work |
| Warranty and handover | Workmanship terms, product documents and contact details |
Before the first visit, ask whether the on-site quote is free and whether design work or investigative work has a separate fee. Remodaro’s optional matching request is free for homeowners. After you submit your project and phone number, we can review availability and look for up to three suitable contractors. A match or visit needs confirmation before it is arranged.
Common planning questions
Can a one-piece fiberglass shower fit through every doorway?
No. The delivery route must be checked against the actual unit. A multi-piece system may be considered where access is restricted.
Can I start with a smaller project?
Yes. The bathroom planner includes focused work as well as larger projects. Compare the intended scope with another option before committing. Inspection-dependent work gets a project brief so a broad remodel price is not mistaken for a repair quote.
How does my ZIP affect the estimate?
We look up the city and state associated with the ZIP. Where a regional factor is available, we apply the documented state price index as a planning proxy. It measures general price differences, not actual contractor bids in your neighborhood. Scope, access and the condition of your home still need an on-site evaluation.
Do I have to hire a contractor through Remodaro?
No. You can keep the estimate and checklist. The optional phone form requests help reviewing local contractor availability, and there is no obligation to accept a proposal.
Plan your project with a clearer starting point.
Get my personalized plan →Homeowner reference — Federal Trade Commission guidance on hiring for home improvement. This reference supports the hiring checklist. Prices are Remodaro illustrative planning assumptions, not FTC price data.