What does it cost to fully upgrade a home in Ontario, CA? (2026)
A localized estimate to bring a typical Ontario home's major systems up to date.
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 Ontario — each line is a localized 2026 estimate, and you can click any project for the full breakdown.
| Project | Ontario 2026 range |
|---|---|
| HVACFurnace Replacement | $4,150 – $7,500 |
| RoofingAsphalt Shingle Roof Replacement | $6,200 – $12,750 |
| Water HeatersTank Water Heater Replacement | $1,300 – $3,350 |
| WindowsVinyl Window Replacement | $5,300 – $15,600 |
| PaintingInterior House Painting | $4,150 – $12,500 |
| FlooringHardwood Flooring Installation | $6,200 – $15,550 |
| PlumbingWhole House Repipe | $3,800 – $8,550 |
| InsulationAttic Insulation | $1,550 – $6,200 |
| Complete home upgrade | $32,650 – $82,000 |
Renovating a home in Ontario
How much does it cost to fully renovate a home in Ontario?
Ontario homeowners tackling a full renovation should budget $32,650–$82,000 in 2026, covering one representative project per major category, localized for local labor, climate and permits.
Which home upgrade is most expensive in Ontario?
Budget the most for Hardwood Flooring Installation ($6,200–$15,550) — the smallest line is Tank Water Heater Replacement at $1,300–$3,350.
Should I do every upgrade at once in Ontario?
Phasing is the norm — prioritize failing or high-impact systems first (flooring tends to be the biggest line in Ontario), 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 California cities
These totals add one representative project per category, localized for Ontario's mixed climate, local labor rates and permit fees. Treat this as a planning tool, not a quote — most homeowners phase the work over years.