20 Best Window Companies in Portsmouth, NH (2024 Reviews)
Looking to improve your home’s energy efficiency? The top window replacement companies can help.
We analyzed all the top-rated window companies in Portsmouth and selected the best 20 based on:
- Customer reviews
- Window installation expertise
- Popularity with home-owners like you
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Updated February 01, 2024
Why you can trust EcoWatch
Whether you're updating for style or have windows that need repairs, windows play a key role in conserving your home's electricity. The Department of Energy estimates that heat or cool air lost through traditional or outdated windows could make up about 30% of residential energy climate usage. In Portsmouth, where the electric bills are an average of $33 per month, that’s almost $$120 per year wasted.
That’s not great for either your wallet or the environment, but one of the best window installation companies can help with that.
So if you’re building a new home, renovating or replacing your windows in Portsmouth, you’ve found the best place to get started.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Portsmouth
The EcoWatch Reviews team researched dozens of window installation companies across Portsmouth to narrow our list down to the best ones. The providers we’ve reviewed in this article scored best in our categories, which include energy-efficient offerings, price, availability, customer service and more.
Renewal by Andersen
- Great industry reputation
- Award-winning company
- Member of US Green Building Council
- Manufactures products in-house
- No lifetime warranty
- More expensive than competition
Renewal by Andersen offers the best availability in Portsmouth. This provider has 27 years of experience in the window installation business, and it has established itself as one of the most respected companies in the business.
If you’re looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, Andersen may be the right company for you.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen’s commitment to sustainability shows in its energy-efficient window offerings. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in Portsmouth?Pricing information is not available on Andersen’s website, as the cost of window replacement varies greatly depending on how many and what type(s) of windows you need. However, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Requesting a free quote on its website is the best way to get more accurate pricing information.
Window World
- EnergyStar Partner
- Large serice area
- Low prices relative to competitors
- Great industry reputation
- Lifetime warranty
- Quality of service will depend on your area
Window World offers windows expertise in Portsmouth. This provider has 27 years of experience in the window installation business, and it has established itself as one of the most respected companies in the business.
If you’re looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, Window World may be the right company for you.
Energy Efficiency of Window World WindowsWindow World’s commitment to sustainability shows in its energy-efficient window offerings. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Portsmouth?Pricing information is not available on Window World’s website, as the cost of window replacement varies greatly depending on how many and what type(s) of windows you need. However, it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to get more accurate pricing information.
Universal Windows Direct
- Makes charitable contributions
- Manufactures products in-house
- Wide variety of products and services
- Lifetime warranty
- Limited service area
- Some installations carried out by third-party contractors
- Quality of service will depend on your area
Universal Windows Direct offers the best warranty in Portsmouth. This provider has 20 years of experience in the window installation business, and it has established itself as one of the most respected companies in the business.
If you’re looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, Universal may be the right company for you.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct’s commitment to sustainability shows in its energy-efficient window offerings. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.
How much does Universal Windows Direct cost in Portsmouth?Pricing information is not available on Universal’s website, as the cost of window replacement varies greatly depending on how many and what type(s) of windows you need. However, installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. Requesting a free quote on its website is the best way to get more accurate pricing information.
Aeroseal Windows
- Many years of experience
- Great industry reputation
- Low number of customer complaints
- Manufactures products in-house
- Custom Designs
- No lifetime warranty
- Not ideal for residential installations
Aeroseal Windows offers the best window installation for businesses in Portsmouth. This provider has 23 years of experience in the window installation business, and it has established itself as one of the most respected companies in the business.
If you’re looking for a company that installs windows and doors at businesses across the Eastern U.S, Aeroseal may be the right company for you.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows’s commitment to sustainability shows in its energy-efficient window offerings. The company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more.
How much does Aeroseal Windows cost in Portsmouth?Pricing information is not available on Aeroseal’s website, as the cost of window replacement varies greatly depending on how many and what type(s) of windows you need. However, it provides high-quality windows at a competitive price point. Requesting a free quote on its website is the best way to get more accurate pricing information.
We strive to be unbiased and transparent by including pros and cons for every company. Additionally, any partnerships do not affect our rankings.
More Window Companies in Portsmouth
Renewal by Andersen Window Replacement
Saco, ME- Good Customer Service
- Free assessment
- Price Transparency
- Educational Website
Services Offered
- Andersen
- Vinyl Frames
- Bay Windows
- Aluminum Frames
- Energy-Efficient Options
- Sliding Glass Doors
- Custom Window Designs
- Window Install & Replacement
Window World of New Hampshire
Manchester, NH- Good Customer Service
- Price Transparency
- Free assessment
- Timely Service
- Educational Website
Services Offered
- Double-Hung
- Window Install & Replacement
- Sliding Glass Doors
- Bay Windows
Pella Windows & Doors of Newington
Newington, NH- Free assessment
- Price Transparency
- Good Customer Service
- Educational Website
Services Offered
- Window Repair
- Fiberglass Frames
- Sliding Glass Doors
- Double-Hung
- Pella
- Vinyl Frames
- Bay Windows
- Window Install & Replacement
- Wood Frames
- Glass Doors
Portland Glass of Portsmouth
Portsmouth, NH- Good Customer Service
- Educational Website
- Price Transparency
- Free assessment
Services Offered
- Mirrors
- Glass Repair
- Window Install & Replacement
- Window Repair
- Custom Glass
- Commercial Windows
- Glass Showers
Glass Routes Co
Madbury, NH- Educational Website
- Good Customer Service
- Price Transparency
- Free assessment
Services Offered
- Window Install & Replacement
- Mirrors
- Vinyl Frames
- Commercial Windows
- Window Repair
- Glass Showers
- Custom Glass
Southers Construction
Dover, NH- Good Customer Service
- Educational Website
- Price Transparency
- Timely Service
- Free assessment
Services Offered
- Window Install & Replacement
- Double-Hung
- Bay Windows
- Window Repair
Portland Glass of Dover
Dover, NH- Price Transparency
- Free assessment
- Educational Website
- Good Customer Service
Services Offered
- Custom Glass
- Window Repair
- Glass Repair
- Mirrors
- Window Install & Replacement
- Commercial Windows
- Glass Showers
The Window Source NH
Seabrook, NH- Good Customer Service
- Educational Website
- Free assessment
- Price Transparency
Services Offered
- Vinyl Frames
- Bay Windows
- Window Install & Replacement
- Storm Windows
- Energy-Efficient Options
- Sliding Glass Doors
Clearview Sunroom & Window LLC
Barrington, NH- Educational Website
- Free assessment
- Good Customer Service
Services Offered
- Window Install & Replacement
Interstate Glass & Mirror Inc
Somersworth, NH- Price Transparency
Services Offered
- Mirrors
- Screen Repair
- Window Repair
- Window Install & Replacement
- Glass Showers
- Storm Doors
- Bay Windows
Granite State Glass
Portsmouth, NH- Price Transparency
- Good Customer Service
- Educational Website
Services Offered
- Commercial Windows
- Aluminum Frames
- Screen Repair
- Window Install & Replacement
- Window Repair
- Glass Showers
Dover Roofing LLC
Dover, NH- Price Transparency
- Educational Website
- Good Customer Service
- Free assessment
Services Offered
- Window Install & Replacement
- Aluminum Frames
- Window Repair
- Skylights
- Commercial Windows
Nick's Door And Window
Portsmouth, NHServices Offered
- Window Install & Replacement
- Storm Doors
- Andersen
- Glass Doors
- Fiberglass Frames
- Aluminum Frames
Broken Glass Company
Wells, ME- Educational Website
- Good Customer Service
Services Offered
- Commercial Windows
- Window Install & Replacement
- Glass Doors
- Window Repair
- Skylights
- Glass Showers
- Glass Repair
- Custom Glass
Norton Exteriors
Epping, NH- Free assessment
- Price Transparency
- Good Customer Service
- Timely Service
Services Offered
- Window Install & Replacement
- Residential Windows
Atlantic Window Warehouse
Newburyport, MA- Good Customer Service
- Timely Service
- Price Transparency
- Educational Website
- Free assessment
Services Offered
- Screen Repair
- Window Install & Replacement
- Vinyl Frames
- Window Repair
- Glass Repair
Great Bay Roofing & Exteriors
Rochester, NH- Educational Website
- Good Customer Service
- Free assessment
- Price Transparency
Services Offered
- Window Repair
- Skylights
- Window Install & Replacement
- Bay Windows
Corporate Office for Pella of Boston
Haverhill, MA- Price Transparency
- Educational Website
- Free assessment
- Good Customer Service
Services Offered
- Window Install & Replacement
- Glass Doors
- Pella
- Fiberglass Frames
- Double-Hung
- Sliding Glass Doors
- Bay Windows
- Custom Window Designs
- Commercial Windows
- Energy-Efficient Options
Affordable Vinyl Windows & Siding Inc
Auburn, NH- Good Customer Service
- Price Transparency
Services Offered
- Commercial Windows
- Window Install & Replacement
- Vinyl Frames
DaBella
Salem, NH- Price Transparency
- Educational Website
- Good Customer Service
- Free assessment
Services Offered
- Window Install & Replacement
- Bay Windows
- Glass Showers
- Vinyl Frames
Calculate how much you can expect to pay for window installation and replacement in Portsmouth, NH using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Portsmouth Saves You Money
There are several perks of upgrading to energy-efficient windows. A few reasons you may want to consider making the switch are the following:
- Protect your investment: If your home is on the older side, your windows are most likely outdated. Upgrading your windows can improve the insulation in your home and also help raise the value of your house if you decide to sell.
- Reduce your carbon footprint: Since energy-efficient windows improve the insulation in your home, you can lower your carbon footprint by about 12%, according to Energy Star.
- Save money on electricity bills: According to the Department of Energy, heat gained or lost through windows accounts for around 25-30% of household energy use. Replacing your windows with energy-efficient models can help lower that number, therefore saving you about 12% more on your bills.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out damaging UV rays, reducing fading of your furniture, carpet and other valuables.
Estimated Cost of Window Replacement in Portsmouth
Each window installation company provides varying services and has different price points depending on several factors.
How Much Do New Windows Cost?
Though the typical cost of replacing one window is around $600, it can range from $200 to $1,200. This is because the cost of window installations depend on several factors specific to your home, like the size, material and number of windows you need to install, as well as the location of your property.
Bear in mind that energy-efficient windows may cost more upfront, but Energy Star predicts the upgrade will save you between $101 and $583 a year when you install single-pane windows and between $27 and $197 a year when installing double-pane, clear glass windows. Your savings will vary depending on your local climate, energy rates and individual home characteristics.
Requesting free quotes from several installers is the best way to find out which one will work best for your budget.
What Services do Window Installers Offer?
The first step of a window replacement is to think about whether you should get a full-frame or pocket installation.
Full-frame installations require replacing the full window — the sill, frame, trim and all. These are most common when you want a different style for your windows or when it has a great amount of rot or deterioration. Full-frame installations are more comprehensive and will increase overall costs. Pocket installations are simpler and won’t cost as much because they involve simply replacing the window within its existing frame. But if the frame has any damage, you may need a full-frame installation instead.
Your window installation company should be able to help you decide 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.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Portsmouth
The EcoWatch Reviews team differs from most reviewers since we examine these companies through a sustainability lens. Along with energy efficiency, we reviewed each installer and ranked them using the following methodology:
Service Area
This one is pretty self-explanatory, but we’ve chosen to highlight window installation companies that serve the Portsmouth area so you can find the right window installation company near you.
Work Quality
We’re willing to bet that you’re looking for professionals who do a great job installing windows. We’ve vetted each installer featured on this list to ensure its technicians are well-qualified and that the company has received plenty of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed patterns in recent customer feedback to find the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction may be the factor we place the most value on, as it indicates the quality of services across most other categories, including cost, quality of installation, professionalism, warranty, quality of parts and more.
Cost
This one is a give-and-take: as with other services, cheap window installers won’t always provide the most quality service. On the other hand, we want to ensure we’re highlighting companies that offer a wide range of price and financing options so they’re accessible to most homeowners.
Warranty
Protecting your investment in new windows is important to many homeowners. That’s why 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 been in the industry for quite some time. Window installation companies that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.
Portsmouth, NH Window Replacement FAQs
How much should window installation cost?
The average cost of replacing a single window can range between $450 and $650. There are a variety of factors that influence the cost, including styles and sizes of windows, how energy-efficient the windows are, the number of windows, local labor costs, the materials used in designing the windows and your property’s location.
What are the types of windows?
There are various kinds of windows you can get for your house, such as bay windows, transom windows, casement windows, picture windows, double-hung and single-hung windows, awning windows and slider windows.
When do I need to use a window installation company?
You should use a window installation company whenever you want new windows. Installing windows is a complicated process that can take a lot of time, so it’s best handled by the professionals.
What time of year should I replace my windows?
Replacement windows can be installed at any time, but autumn might be the best season. No matter when you install them, the contractors will take steps to make sure that too much hot or cold air doesn’t get into your home, so the temperature outside doesn’t necessarily matter that much. Most importantly, the weather should be dry.