20 Best Window Companies in Londonderry, NH (2024 Reviews)

How Installing Energy-Efficient Windows in Londonderry Saves You Money

There are several benefits of upgrading to energy-efficient windows. Some reasons you may want to consider making the switch include the following:

• Protect your investment: Upgrading your windows is an important part of maintaining your property and its real estate value, particularly if your home is on the older side.
• Decrease your carbon footprint: Reducing how much energy you use also lowers your carbon emissions. You could reduce it by about 152 pounds.
• Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent your floors, carpets and furniture from fading by filtering out UV rays.
• Save money on energy bills: Once you switch to energy-efficient windows, you can see a reduction in your bills by about 12% because you’ll need less energy to heat or cool your house.

Estimated Cost of Window Replacement in Londonderry

When considering window installation, each company provides varying services and costs. Let’s take a look at some average costs and services.

How Much Do New Windows Cost?

Though the national average cost of installing a single window is about $600, it can range anywhere from $200 to $1,200. But prices differ considerably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also offer door installations and replacements, which will make your project cost more.

With windows, efficiency is one of the most important factors 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 many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Londonderry homeowners $435+ per year after replacing single-pane windows.

We advise getting free quotes from multiple window companies to find the right windows and the company that works best for your budget.

What Services do Window Installers Offer?

The first step when considering an installation is to think about whether you need a full-frame or pocket installation.

Full-frame installations are usually recommended when you want to change the style of your windows or your window has a lot of rot. With this service, your professionals will replace the entire window, including the sill, trim and frame. A pocket installation entails replacing a window within the existing frame. So, instead of tearing out the whole window and reinstalling it, the installer will just slide the replacement window (also called a retrofit or insert window) into the frame.

Your window installation company will be able to advise you on the best type for your project. In Londonderry, the choice will mostly be influenced by the efficiency of your home and how old your existing frames are.

How We Choose the Best Window Installers in Londonderry

EcoWatch reviews are different from other reviews because we’re examining these companies through a sustainability lens. Along with energy efficiency, we reviewed several window installers in Londonderry and assigned rankings based on the following methodology:

Service Area

Because this is a guide for Londonderry, we only included companies that cover 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 Londonderry.

Work Quality

We’re certain that you’re looking for professionals who do a great job installing windows. We’ve vetted each company on this list to make sure its contractors are well-qualified and that the company has gotten a lot of positive customer feedback to vouch for its service.

Customer Reviews

Customer feedback is another super important review factor. If the majority of customers don’t have good feedback about their service from a certain company, you won’t see it featured on EcoWatch.

Cost

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

Warranty

As discussed, windows are a serious investment, so you’ll want to be certain that investment is well protected. Window installation companies that provide lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Lastly, we like to see companies that have a good 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.