26 Best Window Replacement Companies in Portsmouth, NH (2023 Reviews)
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How Installing Energy-Efficient Windows in Portsmouth Saves You Money

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

• Reduce your carbon footprint: Because energy-efficient windows improve the insulation in your house, you can lower your indirect greenhouse gas emissions by about 12%, according to Energy Star.
• Protect your valuables from fading: When you switch to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will fade less because of their ability to filter out harmful UV rays.
• Protect your investment: If you have an older home, your windows are most likely outdated. Updating your windows can improve the insulation in your home and also help increase the value of your home if you decide to sell.
• Save on power bills: According to the Department of Energy, heat gained or lost through windows makes up about 25-30% of household energy use. Switching to energy-efficient models can help decrease how much energy is used in your home, therefore saving you about 12% more on your bills.

Estimated Cost of Window Replacement in Portsmouth

Windows come in different purposes, shapes and styles, so costs and services will vary greatly depending on several factors. Below, we describe the average cost and services that you can get from window replacement companies.

How Much Do New Windows Cost?

Though the typical of replacing a single window is about $600, it can range from $200 to $1,200. How much it will cost you is based on several factors, including the location of your home, size, number of windows, material, type and more.

With windows, efficiency is the most important factor for most homeowners. High efficiency windows may cost more off the bat, 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, purchasing certified energy-efficient windows can save Portsmouth homeowners $435+ a year after replacing single-pane windows.

How much your window installation costs will also vary depending on the kind of material you choose for the frames. Wood windows are usually the most expensive, but it depends if they are completely 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?

In general, there are two types of window installation services you can get: full-frame and pocket installations.

A full-frame installation replaces the complete window, such as the sill, frame, trim and the window panes. Because this type of installation requires more time, it will be more expensive than a pocket installation. A pocket installation entails replacing a window within the frame that's already there. So, instead of taking out the whole window and rebuilding it, the contractor will just put the replacement window (also called a retrofit or insert window) into the frame.

Your window installation company will be able to help you figure out what's best for your needs. In Portsmouth, the decision will mostly be based on the age of your windows and if there's any moisture damage. Wood can decay if it's not maintained properly over the years, so it's a good idea to have a professional assess your frames and window sills.

How We Choose the Best Window Installers in Portsmouth

In our search to find the most reliable, eco-friendly window installers in Portsmouth, the EcoWatch team landed on the above companies as the top window installation companies in the city. We have assessed the top window replacement companies in Portsmouth mostly based on their energy efficient offerings, as the most sustainable option also benefits homeowners in many ways. Energy-efficient windows can cut your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:

Service Area

Since this is a guide for Portsmouth, we paid more attention to companies that cover the city. There are certainly reputable providers that didn't make our list because of the low odds that they would serve the average homeowner in Portsmouth.

Work Quality

We're certain that you're looking for professionals who do a great job installing windows. We've vetted each installer included in our guide to ensure its contractors are well-qualified and that the company has gotten plenty of positive customer feedback to vouch for its service.

Customer Reviews

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

Cost

Cheaper windows certainly don't mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing providers' prices, we gave higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.

Warranty

As discussed previously, windows are a significant investment, so you'll want to make sure that investment is protected. 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 good track record in the industry. Window installers that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.