Home Cost Atlas

Montana Home Cost Factors

Modeled state planning factors for U.S. homeowners. These pages use national cost bands multiplied by the state rate-book factor, then add state-specific climate, permit, and housing-stock context. They are not observed contractor invoices.

Labor multiplier

1.03x

Permit complexity

medium

Model status

Approved

State-specific planning factors

  • Cold winters affect heating, roofing underlayment, freeze protection, and exterior concrete timing
  • Regional labor availability and contractor backlog can move bids above or below national planning midpoints
  • Permit rules, inspection timing, and utility coordination vary by municipality within the state
  • Housing age, foundation type, and common exterior materials change access and repair scope
  • Use modeled state bands for budgeting only, then compare written local bids for the same scope

Pilot state cost pages

Q1 money pages are the first state-level batch. Each link keeps the modeled disclosure visible and uses the same quality gate as future scale batches.

  • Roof Replacement

    Montana modeled range

    Typical unit: per project

    Low
    $9,270
    Typical
    $20,600
    High
    $32,960

    Not in the first pilot allowlist.

  • Roof Repair

    Montana modeled range

    Typical unit: per repair

    Low
    $412
    Typical
    $1,236
    High
    $3,090

    Not in the first pilot allowlist.

  • HVAC Replacement

    Montana modeled range

    Typical unit: per system

    Low
    $6,695
    Typical
    $12,360
    High
    $18,540

    Not in the first pilot allowlist.

  • Window Replacement

    Montana modeled range

    Typical unit: per home (typical)

    Low
    $4,120
    Typical
    $9,270
    High
    $15,450

    Not in the first pilot allowlist.

Methodology note

State pages use the national cost record and calculator rate-book multiplier for planning. City pages remain gated until unique local observations or approved modeled disclosures pass review.