Montana cost guide
Door replacement cost in Montana
In Montana, door replacement prices run close to the national average — whether you're in Billings, Missoula, or Bozeman. Here's what a complete, permitted job should cost, and how to tell whether the quote in your hand is fair.
Typical Montana range
$900 – $6,300
Entry doors commonly run $900–$4,000 each installed; patio doors more.
Included at this price: Door, hardware, threshold, flashing, and finish trim.
Montana prices by project type
| Project | Montana range | Unit check |
|---|---|---|
| Front / entry door | $900 – $5,800 | Entry doors commonly run $900–$4,000 each installed. |
| Patio or sliding glass door | $1,700 – $8,700 | Sliding and French patio doors commonly run $1,800–$6,500 installed. |
| Garage door | $1,200 – $6,800 | Single doors commonly run $1,200–$3,000; doubles $2,000–$6,000 installed. |
| Interior doors | $400 – $3,900 | Interior doors commonly run $350–$900 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.
Red flags in Montana door replacement quotes
- Slab versus pre-hung unit
- Threshold, sill pan, and flashing
- Hardware, lockset, and keying
- Interior and exterior trim and paint
- Insulation and sealing at the rough opening
Commonly missing line items: sill pan flashing, trim and paint restoration, hardware and lockset, storm door coordination, disposal of the old unit.
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