Whole-home
What does it cost to fully upgrade a home in Olathe, KS? (2026)
Olathe · full-home upgrade
$30,000 – $75,300
Estimated total to modernize the major systems of a typical Olathe home, localized to your area.
Few homeowners do everything at once — but if you're planning a full modernization in Olathe, here's how the major projects add up. Each line is a localized 2026 estimate; click any project for the full breakdown.
| Project | Olathe 2026 range |
|---|---|
| HVACFurnace Replacement | $3,800 – $6,850 |
| RoofingAsphalt Shingle Roof Replacement | $5,700 – $11,650 |
| Water HeatersTank Water Heater Replacement | $1,200 – $3,100 |
| WindowsVinyl Window Replacement | $4,900 – $14,450 |
| PaintingInterior House Painting | $3,800 – $11,350 |
| FlooringHardwood Flooring Installation | $5,700 – $14,300 |
| PlumbingWhole House Repipe | $3,450 – $7,850 |
| InsulationAttic Insulation | $1,450 – $5,750 |
| Complete home upgrade | $30,000 – $75,300 |
Totals sum one representative project per category, localized to Olathe (mixed climate) using local labor price levels and permit fees. Most homeowners phase these over years — use it for planning, not a quote.