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

How Installing Energy-Efficient Windows in Derry Saves You Money

Energy-efficient windows can offer benefits in more than one way. Here are a few reasons you may want to take the plunge and make the switch:

• 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 need less energy to heat or cool your house.
• Protect your valuables from fading: When you switch to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will be protected from fading because of their ability to filter out damaging UV rays.
• Protect your investment: The older your home is, the more likely you are to benefit from switching to energy-efficient windows. Older homes usually have windows that are outdated, leaky or maybe even damaged in some way. Upgrading your windows could help raise the value of your home if you decide to sell.
• Reduce your carbon footprint: By using less energy once upgrading to energy-efficient windows, you’ll also be decreasing your carbon dioxide emissions by about 12%, according to Energy Star.

Estimated Cost of Window Replacement in Derry

Windows come in varying styles, shapes and purposes, so costs and services will differ remarkably based on several factors. Below, we describe the average cost and services that you’ll find from window installation companies.

How Much Do New Windows Cost?

Though the national average cost of installing a single window is around $600, it can range from $200 to $1,200. This is because the cost of window installations depend on a variety of factors specific to your home, including the size, material and number of windows you need to install, as well as where your property is located.

With windows, efficiency is one of the most important factors for many homeowners. Windows with higher efficiency may cost more upfront, but by increasing the efficiency of your home — especially during the winter — they can give you many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Derry homeowners $435+ a year after replacing single-pane windows.

Something else that influences the total cost is the material of the frame you choose. Aluminum frames are generally the least expensive and are sturdy and relatively maintenance-free, but they offer poor insulation. On the other hand, wood frames are the most expensive because they are aesthetically pleasing and provide decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.

What Services do Window Installers Offer?

The first step when planning an installation is to figure out whether you should get a full-frame or pocket installation.

Full-frame installations entail replacing the full window, including the trim, sill and frame. You most likely need a full-frame installation when you want to change the style of your windows or your window has considerable deterioration. These installations are more involved and will raise overall costs. Pocket installations are simpler and won’t carry as large a bill, as they entail simply replacing the window within its existing frame. But if the frame has any damage or deterioration, you may need a full-frame installation instead.

If you’re hiring a reputable window installation company, your company can advise you on the best type for your project. In Derry, the choice will mostly depend on how much damage there is currently and the condition of your existing frames.

How We Choose the Best Window Installers in Derry

EcoWatch reviews differ from other reviews since we look at these companies through a sustainability lens. Along with energy efficiency, we analyzed each installer and ranked them based on the following methodology:

Service Area

Since this is a guide for Derry, we paid more attention to companies that provide services to the city. There are certainly reputable providers that didn’t make our list because they wouldn’t be able to serve homeowners in Derry.

Work Quality

When choosing new windows, the quality and breadth of services can often play just as important of a role in insulation and performance as the type of window you choose. We do give window installers higher marks if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.

Customer Reviews

We analyzed trends in recent online reviews to find the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction may be the most important factor, as it indicates the quality of services across nearly every category, including warranty, quality of parts, quality of installation, cost, professionalism and more.

Cost

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

Warranty

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

Years of Experience

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