What does it cost to fully upgrade a home in St. Louis, MO? (2026)
What it typically takes to modernize the major systems of a St. Louis home, localized for local labor and climate.
Most homeowners spread this out rather than doing it all at once. Here's how the major projects add up for a full modernization in St. Louis — each line is a localized 2026 estimate, and you can click any project for the full breakdown.
| Project | St. Louis 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 |
Renovating a home in St. Louis
How much does it cost to fully renovate a home in St. Louis?
A full modernization of a typical St. Louis home costs roughly $31,000–$77,750 in 2026, adding up one representative project from each category (HVAC, roofing, windows, flooring, plumbing and more), localized for St. Louis.
Which home upgrade is most expensive in St. Louis?
Hardwood Flooring Installation is typically the largest line at $5,900–$14,750, while Tank Water Heater Replacement is the most affordable at $1,250–$3,200.
Should I do every upgrade at once in St. Louis?
Phasing is the norm — prioritize failing or high-impact systems first (flooring tends to be the biggest line in St. Louis), then tackle the rest over a few years. It's easier on the budget and lets you get competitive local quotes for each job.
Complete home costs in nearby Missouri cities
Totals sum one representative project per category, localized to St. Louis (mixed climate) using local labor price levels and permit fees. Most homeowners phase these over years — use it for planning, not a quote.