Cost of Window Replacement in Ontario, CA — 2026 Price Guide
Looking for a reliable window replacement professional in Ontario? Thousands of Ontario homeowners tackle window replacement projects each year, and the average cost in 2026 sits around $705 per window. As a Southern California city with 175,265 residents, Ontario has qualified contractors ready to compete for your business.
2026 Window Replacement Cost in Ontario, CA
| Cost Level | Price (per window) | What to Expect |
|---|---|---|
| Budget / Low-End | $282 | Basic scope, standard materials, smaller projects |
| Average / Mid-Range | $705 | Typical project scope with quality materials |
| Premium / High-End | $1,410 | Large scope, premium materials, complex projects |
Prices are estimates for Ontario, CA in 2026 and reflect local market conditions in San Bernardino County County. Your actual cost will depend on the specifics of your project.
Factors That Affect Window Replacement Cost in Ontario
When you request a quote for window replacement in Ontario, contractors evaluate these factors.
- Window type (single-hung, double-hung, casement, sliding)
- Frame material (vinyl, wood, aluminum, fiberglass)
- Glass type (double-pane, triple-pane, Low-E coating)
- Number of windows being replaced
- Size and shape of the window openings
- Whether structural modifications are needed
- Interior and exterior trim work required
What Ontario Homeowners Should Know
Window Replacement projects in Ontario typically require a permit from San Bernardino County. Your contractor should handle the permit application.
Always verify your Ontario window replacement contractor's CSLB license at cslb.ca.gov before signing a contract.
How to Save Money on Window Replacement in Ontario
You don't have to pay top dollar for quality window replacement in Ontario. Try these strategies.
- Replace all windows at once for volume discounts of 10-20%
- Choose vinyl frames for the best value and low maintenance
- Apply for utility company energy efficiency rebates
- Schedule installation during off-peak seasons
- Consider retrofit installation instead of full-frame to reduce costs
Frequently Asked Questions
How much does window replacement cost in Ontario, CA?
The average cost of window replacement in Ontario is approximately $705 per window in 2026. Prices range from $300 to $1,500 depending on project scope.
How long does window replacement take in Ontario?
Most window replacement projects in Ontario take 1-3 days to complete. Factors like project complexity and weather in San Bernardino County can affect the schedule.
Do I need a permit for window replacement in Ontario?
Yes, window replacement projects in Ontario typically require a permit from San Bernardino County.
How do I choose a window replacement contractor in Ontario?
Get at least three quotes from Ontario contractors, verify their CSLB license, check reviews, and never pay more than 10% or $1,000 upfront.
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