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REGIONAL COST GUIDE · Beaverhead County, MT

How Much Does Exterior Door Replacement Cost in Beaverhead County, MT?

Exterior door replacement in Beaverhead County, MT costs $800 to $4,500. See 2026 pricing for entry doors, patio doors, and storm doors.

Cost range $800 – $3,000
Average $1,500
Updated May 17, 2026
COST BREAKDOWN

What homeowners in Beaverhead County actually pay.

Local market ranges built from regional labor, materials, and permitting data — not national averages.

Entry Door Replacement (Fiberglass)

$800 Avg: $1,500 $3,000

Sliding Patio Door Replacement

$1,500 Avg: $2,800 $4,500

Storm Door Installation

$300 Avg: $500 $800

National avg $1,500 × 1x local adjustment = $1,500

Why Beaverhead County prices look like this.

With 7,498 heating degree-days annually and a Relatively High winter weather risk score of 86.09, exterior doors in Beaverhead County face demanding conditions that make thermal performance and weatherproofing essential. Replacing an entry door runs $800 to $3,000, while sliding patio doors cost $1,500 to $4,500 and storm doors $300 to $800. The median home value here sits at $282,000, making door upgrades a practical investment in both comfort and energy savings. IECC climate zone 6B classification means building codes require higher R-values and tighter air sealing than milder regions. Choosing doors rated for cold climates (look for U-factors below 0.30) will reduce heat loss during Montana's long winters.

Labor Costs and Contractor Availability

Carpenter wages nationally average $29.58 per hour, translating to $61,533 annually. Beaverhead County lacks sufficient local wage data for a metro-specific estimate, so expect rates to align with broader regional norms. Labor accounts for roughly 30-40% of a door replacement project, with installation times varying by door type. A standard entry door takes 3-5 hours to install, while sliding patio doors require 4-8 hours due to larger openings and more complex framing. Storm doors are quicker at 1-2 hours. Rural Montana contractors may charge travel fees for properties far from population centers, so request itemized quotes that separate materials from labor.

Weather Hazards and Door Durability

FEMA's National Risk Index gives Beaverhead County an overall risk score of 42.88 (Relatively Low), but specific hazards warrant attention. Winter weather scores 86.09 (Relatively High), meaning doors must withstand heavy snow loads, ice buildup, and freeze-thaw cycles. Wildfire risk at 84.32 suggests considering fire-rated doors for homes near forested areas. Hail (12.53) and tornado (6.81) risks remain Very Low, so impact resistance matters less here than thermal and moisture performance. Steel doors resist dents but can transfer cold; fiberglass offers better insulation and won't warp from temperature swings. For exposed entries, a storm door adds a protective buffer against the elements.

Climate Zone Considerations

Beaverhead County falls within IECC climate zone 6B, a cold and dry classification that shapes door selection. The county records 7,498 heating degree-days annually, more than double the national median of 3,700 HDD. This means furnaces and heating systems run significantly harder here, making every air leak costly. Cooling demand is minimal at just 434 cooling degree-days. For exterior doors, prioritize low U-factor ratings (0.25-0.30 or better), proper weatherstripping, and insulated cores. Fiberglass and insulated steel doors outperform wood in this climate because they resist warping from moisture cycling. Triple-pane glass inserts in entry doors reduce heat transfer through glazing sections.

Energy Efficiency and Utility Impact

Montana residents pay $0.133 per kWh for electricity as of February 2026. While door replacement won't slash bills like insulation upgrades, drafty doors contribute to measurable heat loss. An older door with worn weatherstripping can leak air equivalent to leaving a window open several inches. Replacing a poorly sealed entry door with an ENERGY STAR certified model reduces heating costs by limiting infiltration. For homes considering future solar installations, Beaverhead County receives 4.94 peak sun hours daily, enough for a 6kW system to generate 8,432 kWh annually. Reducing baseline energy consumption through better doors and insulation stretches those solar kilowatt-hours further.

Financing Your Door Replacement

The current 30-year mortgage rate of 6.36% (as of May 14, 2026) affects home equity borrowing options for larger projects. For a sliding patio door at $2,800, many homeowners pay cash or use a credit card for the 0% promotional period. Larger projects involving multiple doors may justify a home improvement loan. With median home values at $282,000 and annual property taxes around $1,876, most Beaverhead County homeowners have equity available. Some utility companies and state programs offer rebates for ENERGY STAR doors, particularly in high-HDD regions like zone 6B. Check with NorthWestern Energy or Montana DEQ for current incentive programs before purchasing.
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FREQUENTLY ASKED · 07

Questions buyers ask about exterior door replacement in Beaverhead County.

Short answers to the most common things we hear about local pricing, scope, and timing.

  1. How long does exterior door replacement take in Beaverhead County?

    A standard entry door installation takes 3-5 hours. Sliding patio doors require 4-8 hours due to larger openings and additional framing work. Storm doors are fastest at 1-2 hours. Weather delays are possible during winter months given the county's 86.09 winter weather risk score.

  2. What door material works best for Montana's cold climate?

    Fiberglass doors perform well in Beaverhead County's IECC zone 6B climate with 7,498 annual heating degree-days. They resist warping from temperature swings and offer better insulation than wood. Steel doors are durable but conduct cold. Look for U-factors below 0.30 for best thermal performance.

  3. How much does a fiberglass entry door cost installed?

    Entry door replacement with fiberglass runs $800 to $3,000 in Beaverhead County, with $1,500 being typical. The range depends on door style, glass inserts, hardware quality, and any framing repairs needed during installation.

  4. Should I add a storm door to my entry door?

    Storm doors make sense in Beaverhead County given the Relatively High winter weather risk (86.09 score) and 7,498 heating degree-days. At $300 to $800 installed, they add an insulating air gap and protect your primary door from ice and snow exposure.

  5. Do exterior doors qualify for energy rebates in Montana?

    ENERGY STAR certified doors may qualify for utility rebates or state incentives, particularly in high-heating-demand areas like zone 6B. Contact NorthWestern Energy or Montana DEQ for current programs. Federal tax credits for energy efficiency may also apply to qualifying doors.

  6. What is the cost difference between entry doors and patio doors?

    Sliding patio door replacement costs $1,500 to $4,500 (average $2,800), while entry doors run $800 to $3,000 (average $1,500). Patio doors cost more due to larger glass panels, heavier frames, and more complex installation involving bigger rough openings.

  7. How do I find a contractor for door installation in rural Beaverhead County?

    Carpenter wages nationally average $29.58 per hour. In rural areas, request quotes from contractors in nearby towns and ask about travel fees. Get itemized estimates separating labor from materials, and verify the installer has experience with cold-climate door specifications for zone 6B requirements.

SOURCES · 08

How these numbers were built.

Cost estimates are derived from government data including the U.S. Census Bureau (ACS), Bureau of Labor Statistics (OEWS), FEMA National Risk Index, EIA energy data, IECC climate zone classifications, Federal Reserve (FRED), and HUD Fair Market Rents.

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