Looking for cost of replacement windows and installation in Ontario, CA? Call ReplacementWindows Services for a contact a provider — no obligation. Licensed window pros serve Ontario and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

What affects the price

Replacing windows is a custom project, so the final total depends on a few specific variables. The size and style of the frames you choose—like double-hung versus casement—will change the materials cost. We also look at the glass packages, such as double or triple-pane options, and any energy-efficient coatings that help with insulation. The number of windows being replaced and the current condition of your home’s exterior framing play a role in the labor needed. Exact pricing confirmed free on the call.

About this service

When you replace your windows, the total price depends on the size of the openings, the style of window you choose, and the condition of the frames underneath. If your current windows are drafty, hard to open, or showing rot, it is time to look into an upgrade. Exact pricing confirmed free on the call.

Frequently asked in Ontario

What's the average cost of replacement windows in Ontario?

What are the best windows for the money in California?

Vinyl windows are a popular, cost-effective choice in California for their durability and low maintenance. Aluminum offers good strength, while wood provides a classic look but requires more upkeep. The pros you call can recommend the best fit for your Ontario home.

Is it worth replacing 30-year-old windows?

Yes, especially if they're showing signs of wear or poor insulation. Older windows can be major culprits for energy loss, leading to higher cooling costs in Ontario. New windows can enhance comfort, reduce outside noise, and improve your home's curb appeal.

How much does it usually cost to replace a single window?

The price for one window depends on its dimensions, style, and whether it includes special features like low-E glass. Frame material and installation complexity also influence the cost. Get a personalized quote for an exact figure for your specific window in Ontario.

Who competes with Andersen windows locally?

What's the most affordable way to replace windows?

Also serving nearby: Chino · Rancho Cucamonga · Jurupa Valley · Pomona · Fontana

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More on this: ENERGY STAR windows — efficiency ratings.

Service area details

182,457residents

3,650per sq mile

4ZIP codes served

Serving all of Ontario — population 182,457; about 3,650 residents per square mile across 50.0 sq mi. ZIP codes covered include 91758, 91761, 91762, 91764.

Neighborhoods served in Ontario: Central Ontario, East Ontario, West Ontario, North Ontario, Guasti, Indian Hills — and every surrounding area.