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

How Installing Energy-Efficient Windows in Manchester Saves You Money

When you switch to energy-efficient windows, you may see some perks, including:

• Save money on energy bills: After you switch to energy-efficient windows, you can see a reduction in your bills by about 12% since you’ll need less energy to heat or cool your house.
• Reduce your carbon footprint: In Manchester, you can lower your indirect greenhouse gas emissions by about 152 pounds per year after you switch to energy-efficient windows.
• Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.
• Protect your investment: If your home is on the older side, your windows are most likely in need of replacement. Upgrading your windows can improve the insulation in your home and also help increase the value of your property if you decide to sell.

Estimated Cost of Window Replacement in Manchester

Let’s take a look at the cost of window replacement and the types of services offered by installers.

How Much Do New Windows Cost?

On average, homeowners in Manchester can anticipate that most replacement window installations will range from $250 to $1,200, with the most common installations sitting at around $600. This is because of the fact that window installations are based on a variety of factors specific to your home, such as the size, material and number of windows you need to install, as well as the location of your property.

With windows, efficiency is the most important factor for most homeowners. Efficient windows may cost more upfront, but by increasing the efficiency of your home — especially during the winter — they can provide many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Manchester homeowners $463+ per year after replacing single-pane windows.

The cost of your window installation will also vary based on the kind of material you choose for the frames. Wood windows are typically the most expensive, but it depends on whether they are 100% wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are shown to be more efficient.

What Services do Window Installers Offer?

The first step of an installation is to decide whether you should get a full-frame or pocket installation.

Full-frame installations entail replacing the full window, including the frame, trim and sill. Full-frame installations are necessary when you want to change the style of your windows or your window has noticeable rot. These installations are more involved and will raise the overall cost. A pocket installation entails installing a new window within the frame that’s already there. So, instead of tearing out the whole unit and reinstalling it, the window installer will just put the replacement window (also called a retrofit or insert window) into the frame.

Your window installation company should be able to help you choose which type of installation you should get.

How We Choose the Best Window Installers in Manchester

The EcoWatch Reviews team differs from most reviewers because we assess these companies through a sustainability lens. Along with energy efficiency, we analyzed window companies all across the state and assigned rankings using the following methodology:

Service Area

Because this is a guide for Manchester, we only included companies that serve the city. There are certainly other reputable providers that didn’t make the list because of the low odds that they would serve the average homeowner in Manchester.

Work Quality

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

Customer Reviews

Another self-explanatory yet super important review factor is customer feedback. If the majority of customers don’t have nice things to say about their experience with a certain installer, it won’t be featured on EcoWatch.

Cost

This one is a give-and-take: as with most services, cheap window installers won’t always provide the highest quality service. On the other hand, we want to ensure we’re highlighting companies that offer a variety of price and financing options so they’re accessible to most homeowners.

Warranty

Protecting your investment in new windows is important. That’s why window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Lastly, we like to see companies that have a proven track record in the industry. Window installation companies that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.