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Bathroom · Planning

How to plan a bathroom remodel, step by step

A bathroom remodel goes smoothly or sideways based on decisions you make before demolition. Set the scope and budget, lock your selections early, and understand the order of work, and you avoid the mid-project change orders where time and money disappear. Here is the plan, step by step.

Reviewed for 2026How we estimate

Key takeaways

  • Start with scope and budget: a cosmetic refresh, a same-layout remodel, and a down-to-studs rebuild are very different projects.
  • Keep the existing layout if you can; moving the toilet, shower, or sink means new plumbing and a bigger bill.
  • Lock every fixture and finish selection before work starts; late changes are the top source of scope creep.
  • Build in a 10 to 20 percent contingency for hidden rot, mold, or old wiring found once the walls are open.
  • Confirm who pulls the permit and the realistic timeline before the first day.

Step 1: Set scope and budget

Decide which project you are actually doing before you price anything, because the ranges barely overlap: a tub-to-shower conversion runs about $3,500 to $12,000, a midrange same-layout remodel about $10,000 to $20,000, and a full down-to-studs rebuild about $20,000 to $50,000. Pick the scope that matches your goals and your budget, then hold the line on it.

Step 2: Lock the layout

The single biggest cost lever is whether you move plumbing. Keeping the toilet, shower, and vanity where they are avoids rerouting supply and drain lines, which is expensive and slow. Move fixtures only when the layout genuinely does not work, and if you do, decide it now, not after the walls are open.

Step 3: Choose everything before demolition

  • Select and order tile, vanity, fixtures, lighting, and hardware up front, and confirm lead times so nothing stalls the job.
  • Get an itemized scope from the contractor: demo, plumbing, electrical, tile, fixtures, and finishes priced separately.
  • Agree in writing how change orders are priced, and set a written allowance for hidden damage.
  • Confirm who pulls the permit (the contractor should) and where the inspection points fall.

Step 4: Understand the sequence and timeline

Work runs in a rough order: demolition, then rough-in plumbing and electrical, inspection, then waterproofing and tile, then fixtures, vanity, and finishes, then a final inspection and punch list. A straightforward remodel often takes two to four weeks once it starts, longer if you move plumbing, hit hidden damage, or wait on back-ordered tile. Build a 10 to 20 percent contingency into the budget so a rotted subfloor or outdated wiring does not derail the project.

Your town dashboard shows local bathroom remodel ranges so your budget starts from a real number.

Frequently asked questions

What is the first step in planning a bathroom remodel?
Set the scope and budget. Decide whether you are doing a cosmetic refresh, a same-layout remodel, or a full down-to-studs rebuild, because the cost ranges are very different: roughly $3,500 to $12,000 for a tub-to-shower conversion, $10,000 to $20,000 midrange, and $20,000 to $50,000 for a full remodel. Everything else follows from that.
How long does a bathroom remodel take?
A straightforward remodel usually takes two to four weeks once work begins. Moving plumbing, hidden damage like a rotted subfloor, and back-ordered tile or fixtures all extend it. Locking your selections before demolition is the best way to keep the timeline on track.
How much contingency should I budget?
Plan for 10 to 20 percent on top of the project price. Bathrooms hide their problems, rotted subfloor, mold, or outdated wiring, until demolition opens the walls. A written contingency means those discoveries are handled without a budget crisis or a stalled job.

See the numbers for your town

These ranges are national. Open a dashboard to see bathroom prices modeled for your town, with a live estimator and local factors.

Cost figures in this guide are modeled national ranges for general planning, not quotes. Local pricing varies, always get an on-site assessment from a licensed pro before you commit. Evergreen guide