For a Naperville address, plan on $2,100 to $20,500 per job for bathroom addition, with the midpoint near $11,500.
Typical bathroom addition cost
$2,100 – $20,500
per job · typical $11,500
- Low
- $2,100
- High
- $20,500
- Typical
- $11,500
- Unit
- per job
A planning estimate, not a quote.
Contractors serving Naperville fold travel time and the Illinois market rate into every bid. Ask for a written scope so two quotes compare like for like.
Benchmarked against 5 nearby cities in Illinois.
Bathroom addition cost breakdown
| Scope | Low | High | Typical | Unit |
|---|---|---|---|---|
| Complete bathroom addition at standard grade | $2,100 | $20,500 | $11,500 | per job |
| Single-issue patch or repair | $375 | $7,400 | $3,900 | per job |
| Assessment visit with written scope | $65.00 | $1,200 | $625 | per job |
| Upgraded materials or custom finish | $3,300 | $43,000 | $23,000 | per job |
| Weekend, holiday or rush callout | $2,700 | $33,000 | $18,000 | per job |
Bathroom addition cost guide
What bathroom addition covers
A quote for Bathroom Addition normally bundles labour, the materials or parts, and any follow-up visit. The way a provider splits those pieces is the main reason two quotes for the same Bathroom Addition look different.
Because two providers can describe the same Bathroom Addition in different ways, ask each one to break the total into the same line items before you compare them.
Choosing a contractor for bathroom addition
Ask whether a licence or registration is required for this kind of work, confirm it with the regulator, and request proof of insurance before work starts.
Ask for two recent local jobs you can call, and read the written scope for what it leaves out as carefully as what it includes.
The things that move a bathroom addition price
The scale of the work, the grade of materials, how easy the work area is to reach, permit requirements and how quickly you need it finished.
Where you are matters too: outlying areas add travel, and dense cities add access and permit overhead.
Ways to keep bathroom addition costs down
Collect two or three written quotes and compare them line by line instead of on the bottom line, then ask what the price would be for payment in full.
When the work can be scheduled, moving it out of the busiest season usually lowers the bill. Ask whether a bundle or off-peak rate exists.
Nearby cities
Compare Bathroom Addition costs across Illinois
