Missouri cost guide
Window replacement cost in Missouri
In Missouri, window replacement prices run below the national average — whether you're in Kansas City, St. Louis, or Springfield. Here's what a complete, permitted job should cost, and how to tell whether the quote in your hand is fair.
Typical Missouri range
$5,600 – $22,600
Replacement windows commonly run $600–$1,600 each installed.
Included at this price: Unit, installation, flashing, interior/exterior trim, and disposal.
Missouri prices by project type
| Project | Missouri range | Unit check |
|---|---|---|
| Insert (retrofit) replacement windows | $4,700 – $16,900 | Insert replacements commonly run $500–$1,200 each installed. |
| Full-frame replacement windows | $7,500 – $28,200 | Full-frame replacements commonly run $900–$2,000 each installed. |
| Specialty, bay, or oversized windows | $2,800 – $18,800 | Bay and picture windows commonly run $1,800–$6,000 each installed. |
Reviewed 2026. Editorial benchmarks from public cost surveys (Zonda Media / Remodeling magazine, Houzz, Angi / HomeAdvisor), adjusted by a state construction-cost index. Not a bid, appraisal, or licensed estimating data.
What a common size costs in Missouri
Replacement window, installed: $600–$1,600 per window, adjusted for Missouri construction costs.
| Size | Missouri estimate |
|---|---|
| 5 windows | $2,800 – $7,500 |
| 10 windows | $5,600 – $15,000 |
| 15 windows | $8,500 – $22,600 |
| 20 windows | $11,300 – $30,100 |
Per-unit rate from the public cost guides cited above, multiplied by size and the Missouri construction-cost index. Access, demolition, repairs, and permits can add to it — this is a benchmark, not a bid.
Red flags in Missouri window replacement quotes
- Insert (pocket) versus full-frame replacement
- Manufacturer, series, glass package, and U-factor
- Flashing and sealing method at the opening
- Interior and exterior trim restoration
- Disposal of old units
Commonly missing line items: interior trim and paint restoration, exterior capping or wrap, rot repair at sills, disposal and haul-away, lead-safe practices on pre-1978 homes.
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Related cost guides
Homeowners in Missouri can also read and write contractor reviews before choosing who to hire.