Whole-home
What does it cost to fully upgrade a home in Longmont, CO? (2026)
Longmont · full-home upgrade
$32,600 – $81,800
Estimated total to modernize the major systems of a typical Longmont home, localized to your area.
Few homeowners do everything at once — but if you're planning a full modernization in Longmont, here's how the major projects add up. Each line is a localized 2026 estimate; click any project for the full breakdown.
| Project | Longmont 2026 range |
|---|---|
| HVACFurnace Replacement | $4,350 – $7,800 |
| RoofingAsphalt Shingle Roof Replacement | $6,250 – $12,900 |
| Water HeatersTank Water Heater Replacement | $1,300 – $3,350 |
| WindowsVinyl Window Replacement | $5,350 – $15,750 |
| PaintingInterior House Painting | $4,000 – $12,000 |
| FlooringHardwood Flooring Installation | $6,000 – $15,000 |
| PlumbingWhole House Repipe | $3,750 – $8,500 |
| InsulationAttic Insulation | $1,600 – $6,500 |
| Complete home upgrade | $32,600 – $81,800 |
Totals sum one representative project per category, localized to Longmont (cold climate) using local labor price levels and permit fees. Most homeowners phase these over years — use it for planning, not a quote.