The Ultimate Bathroom Remodel Checklist Before You Start

Most bathroom remodel surprises aren't really surprises. They're things nobody told the homeowner to think about before work started. This checklist walks you through the decisions, questions, and numbers you need to sort out first. Get these right upfront and the project runs smoother, stays closer to budget, and ends with a bathroom you actually wanted.

Set a Real Budget Before You Fall in Love with Fixtures

Pick a number before you start browsing tile or vanities. It's easy to spend $800 on a faucet you saw on Instagram and then realize it ate half your budget for one fixture.

A mid-range bathroom remodel in the northwest suburbs of Chicago typically runs between $10,000 and $25,000, depending on size, materials, and how much of the plumbing and electrical you're moving. A basic refresh costs less. A full gut with a new layout costs more.

Split your budget into three buckets: labor, materials, and a contingency fund. Set aside at least 10 to 15 percent for the unexpected. Old homes hide things. Rotted subfloor, outdated wiring, pipes that need rerouting. That contingency money saves you from stopping mid-project.

Decide What You're Actually Changing

There's a big difference between a cosmetic update and a full remodel. Know which one you're doing before any contractor walks through the door.

A cosmetic update swaps out what you can see: new vanity, new tile, new fixtures. The layout stays the same. Plumbing and electrical stay where they are. These projects move faster and cost less.

A full remodel might move the toilet, relocate the shower, or add a double sink where there was one. Moving plumbing adds real cost and usually requires permits. Make sure you want those changes enough to pay for them.

If you're planning a master bathroom remodel or finishing out a basement bathroom, the scope is usually larger and benefits from a clear plan before anyone picks up a tool.

Pull the Right Permits

Permit requirements vary by municipality, and the northwest suburbs of Chicago have different rules depending on whether you're in Schaumburg, Palatine, Arlington Heights, or another town. Don't skip this step.

You generally need a permit when you're moving plumbing, moving electrical, or changing the layout of the room. A like-for-like fixture swap usually doesn't require one, but check with your local building department to be sure.

A good contractor handles this for you. If someone tells you permits aren't necessary when you're moving a drain, that's a red flag. Unpermitted work can cause problems when you sell the house.

Sort Out the Layout and Measurements First

Measure everything before you order anything. This sounds obvious. Homeowners skip it all the time and then find out a 60-inch vanity won't clear the door swing.

Know your rough-in measurements for the toilet. Know where the drain is for the shower or tub. If you're keeping the layout the same, you have more flexibility with fixtures. If you're changing it, your plumber needs to see the plan before any demo starts.

Think through the door swing, the drawer clearance, and how two people actually move through the space in the morning. A bathroom that looks beautiful in a photo can feel cramped in real life if the layout wasn't thought through carefully. Custom bathroom design work addresses these details early, which saves time later.

Make Material Decisions Early

Lead times on tile, vanities, and fixtures can run four to eight weeks. If you wait until demo day to pick your tile, you'll be living without a bathroom while you wait for a back-ordered shipment.

Lock in your tile selection before work starts. Same with the vanity, faucets, and shower fixtures. Get confirmation from your supplier that items are in stock or ask for a realistic ship date.

For tile work specifically, think about the size of the tile relative to the size of the room. Large-format tile on a small bathroom floor can look off. A tile installer with experience in smaller spaces will tell you what actually works versus what looks good on a sample board.

Also decide early whether you want a tub, a walk-in shower, or both. Removing a tub changes the resale conversation. It's fine to do it, just make the decision deliberately.

Plan for Plumbing and Electrical Before Demo Starts

Don't start tearing out tile until you've talked to a plumber and electrician. They need to know what's moving and what's staying. Surprises behind the wall are much cheaper to handle before the walls are opened than after they're already closed back up.

Ask about adding a GFCI outlet if the bathroom doesn't have one. Ask about ventilation. A lot of bathrooms in older homes don't have proper exhaust fans, and that leads to mold problems down the road.

If someone in your household has mobility concerns, this is also the right time to talk about grab bars, curbless showers, or a comfort-height toilet. An accessible bathroom remodel costs about the same as a standard one when the planning happens upfront.

Getting these details sorted before work starts is what separates a smooth project from a stressful one. If you're planning a bathroom remodel in the NW Suburbs of Chicago and want a contractor who'll walk through all of this with you before anything gets touched, reach out to B&C Remodeling for a free estimate. Twenty years of local work means fewer surprises for you.