Whole-home
What does it cost to fully upgrade a home in St. Peters, MO? (2026)
St. Peters · full-home upgrade
$31,000 – $77,750
Estimated total to modernize the major systems of a typical St. Peters home, localized to your area.
Few homeowners do everything at once — but if you're planning a full modernization in St. Peters, here's how the major projects add up. Each line is a localized 2026 estimate; click any project for the full breakdown.
| Project | St. Peters 2026 range |
|---|---|
| HVACFurnace Replacement | $3,950 – $7,100 |
| RoofingAsphalt Shingle Roof Replacement | $5,850 – $12,050 |
| Water HeatersTank Water Heater Replacement | $1,250 – $3,200 |
| WindowsVinyl Window Replacement | $5,050 – $14,900 |
| PaintingInterior House Painting | $3,900 – $11,750 |
| FlooringHardwood Flooring Installation | $5,900 – $14,750 |
| PlumbingWhole House Repipe | $3,600 – $8,100 |
| InsulationAttic Insulation | $1,500 – $5,900 |
| Complete home upgrade | $31,000 – $77,750 |
Totals sum one representative project per category, localized to St. Peters (mixed climate) using local labor price levels and permit fees. Most homeowners phase these over years — use it for planning, not a quote.