Questions to Ask Before Starting a Bathroom Remodel

What Should You Ask Before Signing a Bathroom Remodel Contract?

These questions separate quality bathroom contractors from those who cut the corners that cause problems 5 to 10 years later.

What Waterproofing System Will You Use in the Shower?

Ask for the specific product name and a description of how it is applied. Acceptable answers: ‘We use Schluter Kerdi membrane over cement board,’ ‘We apply two coats of Laticrete Hydro Ban over cement board,’ or ‘We use a foam shower wall system with integrated waterproofing.’ Not acceptable: ‘We use cement board’ (cement board alone is not a waterproof system — it requires a bonded membrane over it in wet areas). ‘We use a moisture barrier’ (vague, does not confirm a bonded membrane system). The contractor’s ability to specifically name and describe the waterproofing system is a direct indicator of their quality standards. (For more on this, see Questions to Ask a Bathroom Remodeling Contractor.)

How Is Contingency Handled?

Ask specifically: ‘If you find water damage or mold behind the tile during demo, what is the process and how is it priced?’ A quality contractor has a clear protocol: they stop work, show you the finding with photos, provide a specific additional cost quote for remediation, and wait for your authorization before proceeding. A contractor who says ‘we’ll handle it’ or who cannot describe a clear authorization process for additional scope is setting up for after-the-fact billing surprises. (For more on this, see How to Find the Best Bathroom Remodel Contractor.)

Can I See Tile and Material Samples Before We Start?

Confirm that you will see and approve the specific tile, grout color, vanity, fixtures, and all major finishes before any materials are ordered or installed. Color decisions made from small showroom samples sometimes look dramatically different in the actual bathroom — the ability to revisit selections before materials are purchased is essential. A contractor who orders materials without your sign-off on samples is creating avoidable finish disputes.

Is the Permit Included and Who Obtains It?

Confirm permit responsibility and whether permit fees are included in the quoted price. Some contractors include permit fees; others charge them separately or expect the homeowner to obtain them. The contractor should pull all required permits — not the homeowner on a trade project. Unpermitted bathroom work creates disclosure obligations at home sale and may affect insurance coverage.

Working With a Contractor on This Project

Getting the right outcome on any home services project starts before the work begins. A few consistent practices make the difference between a smooth project and a frustrating one.

Get at least two or three quotes. A single quote gives you no basis for comparison. Two or three quotes reveal the market rate for the work, expose scope differences between bidders, and let you assess contractor communication quality before any commitment is made. The lowest bid is not automatically the best value if the scope is thin or the materials are underspecified.

Ask for licenses and insurance before work starts. Verify current general liability insurance and, for any work involving workers on your property, workers compensation coverage. Licensing requirements vary by state and trade; confirm the specific requirements in your jurisdiction. A licensed contractor who carries appropriate insurance protects both parties if something goes wrong during the project.

Get the scope in writing. A written proposal that specifies materials, labor scope, timeline, what is included (permits, cleanup, disposal), and warranty terms is the foundation of a professional engagement. Verbal agreements on any of these points invite misunderstanding. For any project over $500, written scope is non-negotiable.

Clarify the payment schedule upfront. A reasonable payment schedule ties major payments to project milestones: a deposit at signing, a payment at material delivery or project start, and a final payment at completion after a walkthrough confirms satisfaction. A contractor who requires full payment upfront before work begins is a red flag in any trade.

Making a Confident Decision

The information in this article is designed to help you ask better questions of the professionals you work with, evaluate their answers with more confidence, and understand the decisions involved in this type of home services project. It is not a substitute for professional assessment of your specific home.

Every home is different. Roof slopes, local weather, tree exposure, soil conditions, and existing system condition all affect what the right solution is for your specific situation. The general principles here apply broadly, but a professional who assesses your home in person will give you guidance that accounts for the details that general articles cannot.

When you are ready to move forward, getting at least two or three quotes from licensed, insured, local contractors is the most important practical step. It lets you compare approaches, assess contractor quality, and confirm that the solution proposed matches your specific situation and budget.