20 Best Window Companies in Issaquah, WA (2025 Reviews)

How Installing Energy-Efficient Windows in Issaquah Saves You Money

By upgrading to energy-efficient windows, you can benefit in several ways, such as:

• Reduce your carbon footprint: In Issaquah, you can reduce your indirect greenhouse gas emissions by about 271 pounds per year once you install energy-efficient windows.
• Protect your valuables from fading: The low-emissivity coatings on many energy-efficient windows filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
• Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its real estate value, especially if your home is on the older side.
• Save money on electricity bills: Once you install energy-efficient windows, you can expect a reduction in your bills by about 12% because you’ll require less energy to heat or cool your home.

Estimated Cost of Window Replacement in Issaquah

Windows come in various shapes and sizes, so costs and services will vary remarkably. Here are the average costs and services that you can find from window installers.

How Much Do New Windows Cost?

According to our market research, the typical cost of replacing a single window is around $600. However, window replacement costs can range from $200 to $1,200 a window. Costs will differ considerably depending on the quality of your products, the current condition of your home, the number of windows you need and your location. A lot of window companies also offer replacement door installations and other add-ons like coating, baths, shutters and more. These extra services will increase overall project costs.

Keep in mind that energy-efficient windows may cost more, but Energy Star predicts the upgrade will save you between $101 and $583 a year when replacing single-pane windows and between $27 and $197 per year when you replace double-pane, clear glass windows. Your savings will vary based on your local climate, energy rates and individual home characteristics.

Costs will also vary based on the material of your frame. Aluminum frames have the lowest price. They’re sturdy, light and maintenance-free, but provide poor insulation. Vinyl frames are a bit more expensive and offer good insulation. Composite frames made with wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames cost the most and are the most in-demand. They’re also aesthetically pleasing and provide decent insulation for your home.

What Services do Window Installers Offer?

In regard to window replacements, in general there are two types that your installer will have: full-frame and pocket installations.

A full-frame installation is a total window replacement. It involves removing the old window, the sill, and the exterior and interior trim. It can also involve extra materials, like insulation and drip edges, which increase the total cost of the project. Also worth noting: it’s not uncommon for homeowners to have to touch up the paint surrounding the window after a full-frame installation. A pocket installation involves replacing a window without replacing the frame. This means instead of taking out the whole window and rebuilding it, the contractor will just put the replacement window (also called a retrofit or insert window) into the frame.

If you’re hiring a reputable window installation company, your company will be able to recommend the best type for your project. In Issaquah, the choice will mostly be influenced by how much damage there is currently and the age and condition of your existing frames.

How We Choose the Best Window Installers in Issaquah

EcoWatch reviews differ from other reviews, as we evaluate these companies through a sustainability lens. Along with energy efficiency, we analyzed several window installers in Issaquah and ranked them using the following methodology:

Service Area

This one is self-explanatory, but we’ve chosen to highlight window installers that serve Issaquah so you can find a quality window installation company near you.

Work Quality

We’re certain that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each company included in our guide to make sure its contractors are well-qualified and that the company has received a lot of positive customer feedback to vouch for its service.

Customer Reviews

Another self-explanatory yet super important review factor is customer feedback. If most customers don’t have good things to say about their service from a certain company, you won’t see it featured on EcoWatch.

Cost

Cheaper windows certainly don’t mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing providers’ prices, we awarded higher scores to companies with reasonable prices and accessible financing rather than “cheaper” services.

Warranty

Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies that have lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Because of Issaquah’s climate, homeowners will want to mitigate rot, water damage and low efficiency. We factored in local experience to reflect the ability of Issaquah window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.