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Garage Conversion Cost in Naperville, IL
Detailed pricing guide with local market adjustments and material comparisons
Naperville Average
$17,250–$46,000
Market Tier
Large City
Cost Breakdown
Garage Conversion Cost in Naperville
Large CityLowAverageHigh
$17,250$31,625$46,000
Market Tier
Large City (1.15x)
Large city with competitive market and moderate-high costs
Material Cost Comparison
Framing lumber(Budget)
$12,938–$34,500Insulation(Mid-Range)
$17,250–$46,000Drywall(Premium)
$24,150–$64,400Factors that affect your cost
- Garage size
- Scope (room vs full ADU with kitchen/bath)
- Foundation and floor leveling
- Insulation and drywall
- Window and door installation
- HVAC extension
- Electrical and plumbing
- Permit and zoning requirements
- Parking replacement
Get Quotes in Naperville
Naperville Housing Market
Median Home Price
$669,700
Homes for Sale
80
Price per Sq Ft
$280
Local Pros
581
Home Service Professionals Near Naperville
lender 83multimedia_specialist 81Landscapers 80Painters 75Inspectors 68Cleaners 66Electricians 65Roofers 63
Track Your Costs
Renovation
Garage Conversion
Date
April 2026
Cost
$31,625
Vendor
Your local pro
Warranty
5-year material warranty
Naperville average: $17,250–$46,000
Before
Issue documented with photos
After
Repair completed, area sealed
Materials Used
Framing lumberInsulationDrywallFlooring
Warranty Details
5-year material warranty
Auto-Checkup Created
"Conversion Inspection" — every 24 months
Added by youApril 2026
Property Health Score
Fair
78
interior category +12 pts(66 → 78)
Documentation19/25
Maintenance20/25
Warranty22/25
Investment21/25
Your health score is calculated based on documentation completeness, maintenance currency, warranty coverage, and investment tracking.
Get a Personalized Estimate
Find a remodeling near me
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SM
Smith & Sons
Connectedremodeling contractor
4.9(47)
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JR
J&R Home Services
remodeling contractor
4.7(23)
From $95/hr
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Title:remodeling
Category:remodeling contractor
Date:2026-04-08
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Cost FAQ
What is the average cost of garage conversion in Naperville?
The average cost of garage conversion in Naperville, IL ranges from $17,250 to $46,000. The final price depends on Garage size, Scope (room vs full ADU with kitchen/bath), Foundation and floor leveling.
What factors affect garage conversion cost?
Key factors include: Garage size, Scope (room vs full ADU with kitchen/bath), Foundation and floor leveling, Insulation and drywall, Window and door installation, HVAC extension, Electrical and plumbing, Permit and zoning requirements, Parking replacement. In Naperville, local labor rates and material availability also influence pricing.
How do I get accurate quotes for garage conversion in Naperville?
Get at least 3 quotes from licensed professionals in Naperville. Use Fizbo SmartSearch to find and compare local remodelings, read reviews, and request estimates — all in one place.