20 Best Window Companies in Portsmouth, NH (2023 Reviews)

How Installing Energy-Efficient Windows in Portsmouth Saves You Money

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

• Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
• More efficient energy use in your household: Because the winters can get cold in Portsmouth, homeowners usually rely on their heater a lot. Energy-efficient windows decrease how much heat is lost through your windows, making it easier to keep your home warm.
• Save money on energy bills: Because energy-efficient windows decrease the amount of energy needed to heat or cool your home, they can help you save around $435 annually on your energy bills in Portsmouth.
• Protect your investment: The older your home is, the more likely you are to benefit from switching to energy-efficient windows. Older homes tend to have windows that are outdated, drafty or maybe even damaged in some way. Updating your windows could help increase the value of your home if you decide to sell.

Estimated Cost of Window Replacement in Portsmouth

Windows come in different shapes and sizes, so costs and services will differ considerably. Here are the average costs and the primary services that you'll find from the average window installation company.

How Much Do New Windows Cost?

The typical cost to replace a single window is about $600 but can range anywhere from $200 to $1,200. Costs will differ considerably based on the current condition of your home, the number of windows you need, the quality of your products and your location. Many window companies also offer door installations and other add-ons like coating, baths, shutters and more. Additional services will increase your overall project costs.

Keep in mind that energy-efficient windows may have a higher price, but Energy Star estimates the upgrade will save you between $101 and $583 per year when you install single-pane windows and between $27 and $197 per year when you install double-pane, clear glass windows. These savings vary depending on your local climate, energy rates and individual home characteristics.

How much your window installation costs will also vary depending on the type of window material you choose for the frames. Wood windows are usually the most expensive, though it depends if they are solid wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are shown to be more efficient.

What Services do Window Installers Offer?

The first step of a window replacement is to figure out whether you need a full-frame or pocket installation.

Full-frame installations are usually done when you want a new style or your window has significant deterioration. With this service, your installers will replace the whole window, including the sill, trim and frame. Pocket installations (or retrofits) involve installing a new window within the existing frame, which makes pocket installations more simple and affordable. However, if the frame has any damage or rot, you should opt for a full-frame installation instead.

Your window installer should be able to help you choose which type of installation you need.

How We Choose the Best Window Installers in Portsmouth

EcoWatch differs from other reviewers, as we assess these companies through a sustainability lens. We have evaluated the best window replacement companies in Portsmouth mostly based on their energy efficient offerings, as it's the most sustainable option and the best one for homeowners. Energy Star certified windows can reduce your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:

Service Area

This one is pretty self-explanatory, but we've chosen to highlight window installation companies that serve Portsmouth so you can find the right window installation company near you.

Work Quality

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

Customer Reviews

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

Cost

This one is a give-and-take: as with other services, cheap window companies are not going to provide the most quality service. On the other hand, we want to make sure we're highlighting companies that provide a wide range of price and financing options so they're accessible to most homeowners.

Warranty

Protecting your investment in new windows is important. For that reason, window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

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