20 Best Window Companies in Exeter, NH (2025 Reviews)

How Installing Energy-Efficient Windows in Exeter Saves You Money

When you switch to energy-efficient windows, you may see a few perks, such as:

• Decrease your carbon footprint: Decreasing how much energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by about 152 pounds.
• Save on electricity bills: According to the Department of Energy, heat gained or lost through windows makes up about 25-30% of household energy use. Replacing your windows with energy-efficient models can help reduce that amount, therefore saving you about 12% more on your bills.
• Protect your valuables from fading: The low-emissivity coatings on many energy-efficient windows filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
• Protect your investment: When your home is on the older side, your windows could also be outdated or damaged. Upgrading your windows is an important part of maintaining your property and its real estate value.

Estimated Cost of Window Replacement in Exeter

Windows come in different purposes, styles and shapes, so costs and services will differ greatly based on several factors. Below, we detail the typical cost and services that you can get from window installation companies.

How Much Do New Windows Cost?

Typically, homeowners in Exeter can anticipate that most window installations will cost between $250 and $1,200, with the average cost sitting at around $600. But costs differ remarkably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also offer door replacements, which will add extra costs to your project.

With windows, efficiency is the most important factor for most homeowners. High efficiency windows may cost more upfront, but by increasing the efficiency of your home — particularly during the winter — they can give you decades of energy savings. According to Energy Star, buying certified energy-efficient windows can save Exeter homeowners $435+ a year after replacing single-pane windows.

Another factor that influences the overall cost is the material of the frame you select. Aluminum frames are usually the least expensive and are sturdy and relatively maintenance-free, but they provide poor insulation. On the other hand, wood frames are the most expensive, as they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation and cost somewhere between the other two.

What Services do Window Installers Offer?

There are typically two kinds of window installation services: full-frame and pocket installations.

A full-frame installation replaces the total window, such as the windowsill, frame, trim and the window panes. As this type of installation requires more time, it will be more expensive than a pocket installation. A pocket installation involves replacing a window without removing the complete frame, which is generally cheaper than a full-frame installation.

Your window replacement company should be able to help you understand what’s best for your needs. In Exeter, the decision will mostly depend on the age of your home and if there’s any moisture damage. Wood can decay if not properly maintained over the years, so it’s good to have a professional evaluate your frames and window sills.

How We Choose the Best Window Installers in Exeter

In our hunt to find the most reliable, eco-friendly window installers in Exeter, the EcoWatch team chose the above companies as the top window installation companies in the city. Along with energy efficiency, we reviewed each installer and ranked them using the following methodology:

Service Area

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

Work Quality

When installing new windows, the quality and range of services often plays just as important of a role in insulation and performance as the type of window you get. We do rate window installers higher if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.

Customer Reviews

We analyzed patterns in recent customer feedback to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction may be the most important factor, as it indicates the quality of services across most other categories, including cost, quality of installation, quality of parts, warranty, professionalism and more.

Cost

This one is a give-and-take: as with most services, cheap window companies may not provide the highest quality service. Still, we want to make sure we’re highlighting companies that offer a range of price and financing options so they’re accessible to most homeowners.

Warranty

As discussed, windows are a sizable investment, so you’ll want to be certain that investment is protected. Window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Due to Exeter’s climate, homeowners need to be wary of low efficiency, rot and water damage. We factored in local experience to reflect the ability of Exeter window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.