Reviewed by Mario Garcia, General Manager at Windows Hawaii
If you’re pricing new windows on Oahu, you’ve probably noticed that mainland cost guides don’t line up with the quotes you get here. Everything has to be shipped in, labor costs more, and windows near the ocean need hardware that won’t rust. This guide walks through what homeowners in Hawaii actually pay, what drives the price up or down, and how to get the most for your money.
The Short Answer
For a standard-size vinyl replacement window on Oahu, most homeowners pay somewhere around $550 to $950 per window installed. A typical 10-window project lands in the $5,500 to $9,500 range. Large picture windows, impact glass and full-frame installs push the price higher.
For context, HomeBlue put vinyl double-hung windows in Honolulu at $500 to $600 each installed back in 2024, and Angi reports a national average of about $750 per window. Prices have gone up since 2024, and Hawaii usually runs above the mainland average.
Hawaii Window Replacement Cost Calculator
Enter your windows to get a ballpark range. The math uses Oahu market averages for installed replacement windows, so treat it as a planning number, not a quote.
Estimates are rounded market ranges and include installation. They do not include permits, rot or termite repair, or unusual access. Your exact price comes from a free in-home measurement.
Why Windows Cost More in Hawaii
- Shipping. Windows, glass and frames are built on the mainland and shipped across the Pacific. Freight and handling get built into every window.
- Labor. Skilled installers cost more in Hawaii, like most trades here.
- General excise tax. Hawaii charges general excise tax on most sales and services. On Oahu the rate is 4.5%, and it applies to both the product and the installation.
- Coastal-grade materials. Salt air eats cheap hardware. Windows built for the islands use stainless steel locks and UV-stable vinyl, which cost more upfront but last a lot longer.
Window Replacement Cost by Frame Material
Frame material is one of the biggest factors in your price. These are typical Oahu ranges per window, installed, for a standard-size window:
| Frame material | Typical cost per window on Oahu | What to know |
|---|---|---|
| Vinyl | $550 to $950 | The most popular choice in Hawaii. It won’t rust, rot or need paint, and quality vinyl handles salt air well. |
| Wood or wood-clad | $900 to $1,500 | Beautiful, but wood needs regular upkeep in humid weather and can attract termites. HomeBlue put wood double-hung windows in Honolulu at $800 to $1,100 in 2024. |
| Fiberglass | $1,100 to $1,800 | Very strong and stable. A good fit for large openings, but it costs more and is less common on the islands. |
Cost by Window Style
Style matters too. Windows that crank open or have more moving parts cost more than simple sliders. Here’s how national per-window pricing from Angi compares by style. Expect Oahu prices to land toward the upper end.
| Window style | National cost per window, installed | Good for |
|---|---|---|
| Single-hung | $100 to $400 | Basic bedroom and living room windows |
| Double-hung | $150 to $650 | Easy cleaning, both sashes move |
| Casement | $150 to $1,000 | Catching trade winds, replacing jalousies |
| Vinyl (any style) | $100 to $900 | Best overall value |
Impact and Hurricane Windows
Impact windows use laminated glass that holds together when something hits it. According to Angi, they cost roughly 25% to 35% more than regular windows of the same size and style, and the average single impact window runs about $1,800 nationally. On Oahu, many homeowners add impact glass to the windows that face the ocean or the prevailing wind rather than doing the whole house. Our Ali’i hurricane windows are tested against debris traveling 40 feet per second and built for winds up to 120 mph. For a full breakdown, see our impact windows cost guide and our comparison of hurricane shutters vs. impact windows.
What It Costs to Replace Jalousie Windows
Swapping an old jalousie for another jalousie is cheap. LawnStarter puts that at about $285 per window nationally. Most Hawaii homeowners replace jalousies with casement or sliding windows instead, which costs about the same as any other replacement window, plus some extra work if the old frame needs to be built out or repaired. Our jalousie windows guide explains when repair still makes sense.
Retrofit vs. Full-Frame Installation
A retrofit install puts the new window inside the existing frame. It’s faster, cheaper and works for most homes where the old frame is solid. A full-frame install removes everything down to the rough opening, which is the right call when the frame is rotted, termite-damaged or out of square. Full-frame typically adds a few hundred dollars per window, and the calculator above accounts for that. Our guide to retrofit windows vs. full-frame replacement explains how to tell which one you need.
Other Things That Change the Price
- Number of windows. Bigger projects usually cost less per window because setup and travel are spread out.
- Size and custom shapes. Oversized, arched and odd-shaped windows cost more.
- Glass options. Low-E coatings, obscure bathroom glass and laminated glass all change the price.
- Access. Second-story windows and tight spots take more time.
- Repairs. Rot or termite damage around the opening has to be fixed before the new window goes in.
- Condo rules. Some associations require specific colors or styles, which can limit options.
Are New Windows Worth It in Hawaii?
For most homes, yes. Hawaii has the highest residential electricity prices in the country, according to the U.S. Energy Information Administration, so cutting heat gain through the glass matters more here than almost anywhere. New windows also stop the leaks and drafts that come with old aluminum and jalousie windows, cut down on outside noise and make your home harder to break into. If condensation is a problem, our guide to window condensation in Hawaii explains when it means a failed seal.
How to Save on Window Replacement
- Do it in one project. Replacing more windows at once usually lowers the per-window price.
- Check current promotions. We run specials regularly, and many require a minimum number of windows.
- Spread out the cost. Financing lets you pay over time.
- Prioritize. Start with the windows in the worst shape or the ones that face the afternoon sun.
- Stick with standard options. Standard colors and common sizes keep the price down.
Window Replacement Cost FAQs
How much does it cost to replace 10 windows in Hawaii?
For standard vinyl windows on Oahu, a 10-window project usually falls between about $5,500 and $9,500 installed. Impact glass, large windows or full-frame installs raise the total.
Is it cheaper to replace windows a few at a time?
It can feel easier on the budget, but it usually costs more per window. Each visit has its own setup and travel time, and you may miss out on promotions that require a minimum order.
Do I need a permit to replace windows on Oahu?
It depends on the work. Like-for-like replacements are handled differently than projects that change the size of an opening. We confirm what your project needs with the City and County of Honolulu before work starts.
How long does window replacement take?
Windows are custom-built to your measurements, so there’s a wait for manufacturing and shipping to the islands. Once your windows arrive, installation moves quickly, and we’ll give you a schedule before work starts.
Window Buying Guides
Still deciding what to buy? Compare vinyl vs. aluminum windows, casement vs. sliding windows and learn how Low-E glass keeps rooms cooler.
Other Cost Guides
Planning more than windows? See our guides to sliding glass door replacement cost, entry door replacement cost and James Hardie siding cost.
Get Your Exact Price
A calculator can only get you close. The real number comes from measuring your openings and looking at the condition of your frames. Windows Hawaii offers free in-home estimates all over Oahu, including Honolulu, Kapolei, Kailua and the North Shore. Call 808-671-0808 or request your free estimate.
