20 Best Window Companies in Newmarket, NH (2023 Reviews)
Are you looking to upgrade your windows? Our list of the best window installation companies can help you narrow down which one to pick.
We analyzed all the top-rated window companies in Newmarket and selected the best 20 based on:
-
Customer reviews
-
Window installation expertise
-
Popularity with home-owners like you
Please enter a valid 5-digit zip code!

Updated September 15, 2023
Why you can trust EcoWatch
A guide on the top window replacement companies in Newmarket may not seem like the most riveting article on EcoWatch, but trust us, windows have more of an impact on your life than you might think. If you have traditional, outdated windows, your HVAC system could be working overtime to heat or cool your house. This means higher power bills.
Installing efficient windows on your house can help you save money every month on your electricity bills — and you can help the environment as well.
So if you're constructing a new home, renovating or updating your windows in Newmarket, this is the best place to get started.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Newmarket
The EcoWatch Reviews team assessed dozens of window companies in Newmarket to find the top ones for our readers. The providers in this article scored the best in our review categories, which include energy-efficient offerings, availability, customer service, local expertise, price and more.

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 is the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has about 27 years of industry experience, and it currently serves 200 locations nationwide. The provider has many glowing reviews from customers on online review websites.
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, this may be the right provider for you.
Energy Efficiency of Window World WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World’s windows are Energy Star certified, so make sure you mention that you’d like Energy Star windows when inquiring.
How much does Window World cost in Newmarket?Window World doesn’t have any prices listed on its website, but it's known for offering some of the most affordable window installations around. The best way to know for sure is to receive a free quote from the company.

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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has about 27 years of experience in the window replacement sector.
You may want to consider picking Andersen if you're interested in a installer that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen’s commitment to sustainability can be seen 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 Newmarket?Prices aren’t available on Andersen’s website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more detailed information on the cost, you can receive a quote from the company.

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 has the best window installation for businesses in Newmarket. It's an installer that mainly serves commercial and multifamily properties, and also specializes in railings. If you’re looking for residential window installations, you should probably refer to one of the other companies on this list. Aeroseal has been in the window business for around 23 years. Hundreds of positive reviews on customer review websites back the company's reputation.
It has established itself as a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThere are a wide range of window types that Aeroseal Windows offers, some of which are Energy Star products. 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 Newmarket?Aeroseal doesn’t have any cost information displayed on its website, but it provides high-quality windows at a competitive price point. You can ask for a free quote on its website for more information about pricing.

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 is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has about 20 years of industry experience, and it currently serves 27 states nationwide. The provider has many glowing reviews from customers on online review websites.
If you’re looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, this may be the right provider for you.
Energy Efficiency of Universal Windows Direct WindowsThe 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. Not all of Universal’s windows are Energy Star certified, so make sure you mention that you’d like Energy Star windows when inquiring.
How much does Universal Windows Direct cost in Newmarket?Universal doesn’t have any prices listed on its website, but 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. The best way to know for sure is to receive a free quote from the company.
One thing to note is that the following companies are national, which means the quality of customer service may vary depending on your local team. We have tried to stay unbiased and transparent by mentioning pros and cons for every provider.
More Window Companies in Newmarket
Renewal by Andersen Window Replacement
Saco, ME-
Free assessment
-
Educational Website
-
Good Customer Service
-
Price Transparency
Services Offered
-
Bay Windows
-
Energy-Efficient Options
-
Custom Window Designs
-
Fast Delivery
-
Full-Service Installations
-
Window Replacement
-
Aluminum Window Frames
-
Residential Windows
-
Double-Hung
-
Sliding Glass
Window World of New Hampshire
Manchester, NH-
Timely Service
-
Educational Website
-
Good Customer Service
-
Price Transparency
-
Free assessment
Services Offered
-
Residential Windows
-
Custom Window Designs
-
Sliding Glass
-
Window Replacement
-
Bay Windows
-
Double-Hung
-
Fast Delivery
Pella Windows & Doors of Newington
Newington, NH-
Free assessment
-
Educational Website
-
Good Customer Service
-
Price Transparency
Services Offered
-
Custom Window Designs
-
Fast Delivery
-
Sliding Glass
-
Double-Hung
-
Window Replacement
-
Bay Windows
-
Residential Windows
Granite State Glass
Portsmouth, NH-
Good Customer Service
-
Educational Website
-
Price Transparency
Services Offered
-
Custom Window Designs
-
Aluminum Window Frames
-
Fast Delivery
-
Residential Windows
-
Glass Showers
-
Commercial Windows
-
Window Replacement
Portland Glass of Dover
Dover, NH-
Educational Website
-
Good Customer Service
-
Price Transparency
-
Free assessment
Services Offered
-
Custom Window Designs
-
Commercial Windows
-
Window Replacement
-
Residential Windows
The Window Source NH
Seabrook, NH-
Educational Website
-
Price Transparency
-
Free assessment
-
Good Customer Service
Services Offered
-
Residential Windows
-
Custom Window Designs
-
Bay Windows
-
Double-Hung
-
Energy-Efficient Options
-
Window Replacement
-
Sliding Glass
Focalpoint Renovations
Seabrook, NH-
Price Transparency
-
Educational Website
-
Free assessment
Services Offered
-
Full-Service Installations
-
Commercial Windows
-
Window Replacement
-
Residential Windows
-
Custom Window Designs
-
Glass Showers
Window Woman of New England
Amesbury, MA-
Good Customer Service
-
Price Transparency
Services Offered
-
Energy-Efficient Options
-
Window Repair
-
Window Replacement
-
Residential Windows
Refined Home Services
Atkinson, NH-
Educational Website
-
Good Customer Service
-
Free assessment
-
Price Transparency
-
Timely Service
Services Offered
-
Commercial Windows
-
Stained Glass
-
Custom Window Designs
-
Double-Hung
-
Window Replacement
-
Residential Windows
-
Glass Showers
-
Fast Delivery
Atlantic Window Warehouse
Newburyport, MA-
Good Customer Service
-
Free assessment
-
Price Transparency
-
Timely Service
-
Educational Website
Services Offered
-
Fast Delivery
-
Double-Hung
-
Custom Window Designs
-
Residential Windows
-
Window Replacement
Corporate Office for Pella of Boston
Haverhill, MA-
Price Transparency
-
Good Customer Service
-
Free assessment
-
Educational Website
Services Offered
-
Sliding Glass
-
Energy-Efficient Options
-
Residential Windows
-
Custom Window Designs
-
Window Replacement
-
Double-Hung
-
Commercial Windows
-
Bay Windows
Universal Windows Direct of Manchester
Manchester, NH-
Timely Service
-
Good Customer Service
-
Free assessment
-
Price Transparency
-
Educational Website
Services Offered
-
Commercial Windows
-
Custom Window Designs
-
Window Replacement
-
Double-Hung
-
Full-Service Installations
-
Residential Windows
-
Bay Windows
-
Sliding Glass
Morgan Exteriors
Hooksett, NH-
Good Customer Service
-
Educational Website
-
Free assessment
Services Offered
-
Double-Hung
-
Residential Windows
-
Custom Window Designs
-
Window Replacement
-
Sliding Glass
-
Bay Windows
DaBella
Salem, NH-
Free assessment
-
Good Customer Service
-
Price Transparency
-
Educational Website
Services Offered
-
Double-Hung
-
Window Replacement
-
Bay Windows
-
Custom Window Designs
-
Glass Showers
-
Residential Windows
-
Commercial Windows
Dependable J M R Siding
Manchester, NH-
Price Transparency
-
Free assessment
-
Good Customer Service
-
Educational Website
Services Offered
-
Sliding Glass
-
Residential Windows
-
Commercial Windows
-
Custom Window Designs
-
Window Replacement
-
Fast Delivery
-
Double-Hung
Clear Choice Home Improvements
Manchester, NH-
Free assessment
-
Price Transparency
-
Timely Service
-
Good Customer Service
Services Offered
-
Custom Window Designs
-
Residential Windows
-
Commercial Windows
-
Fast Delivery
-
Glass Showers
-
Bay Windows
-
Window Replacement
-
Sliding Glass
-
Double-Hung
Manny's Roofing
Pelham, NH-
Educational Website
-
Good Customer Service
-
Timely Service
-
Price Transparency
-
Free assessment
Services Offered
-
Window Replacement
-
Custom Window Designs
-
Commercial Windows
-
Residential Windows
Fiori Construction LLC
Londonderry, NH-
Free assessment
-
Price Transparency
-
Good Customer Service
-
Educational Website
Services Offered
-
Custom Window Designs
-
Commercial Windows
-
Window Replacement
-
Residential Windows
HI Tech Window and Siding Installations Inc.
Methuen, MA-
Price Transparency
-
Good Customer Service
-
Free assessment
-
Educational Website
Services Offered
-
Residential Windows
-
Energy-Efficient Options
-
Window Replacement
-
Custom Window Designs
PIC Home Pros
Londonderry, NH-
Price Transparency
-
Good Customer Service
-
Educational Website
-
Free assessment
Services Offered
-
Glass Showers
-
Window Replacement
-
Residential Windows
-
Fast Delivery
-
Custom Window Designs
Calculate how much you can expect to pay for window installation and replacement in Newmarket, 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 Newmarket Saves You Money
Upgrading to energy-efficient windows can improve the comfort of your home and help you save on energy bills. Here are more details about how upgrading your windows could help you:
- Protect your valuables from fading: The low-emissivity coatings on some energy-efficient windows filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
- Save money on power bills: According to the Department of Energy, heat gained or lost through windows makes up about 25-30% of household energy use. Upgrading to energy-efficient models can help lower how much energy is used in your home, therefore saving you about 12% more on your bills.
- Decrease your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% after you install Energy Star certified windows. In Newmarket, that's about 152 pounds per year on average.
- Protect your investment: When your home is on the older side, your windows could also be outdated or leaky. Keeping your windows up to date is an important part of maintaining your property and its value.
Estimated Cost of Window Replacement in Newmarket
Each window replacement company provides various services and has different price points based on several factors.
How Much Do New Windows Cost?
Typically, homeowners in Newmarket can expect that most window installations will cost between $250 and $1,200, with the most common installations sitting at around $600. How much it will cost is based on several factors, such as material, number of windows, the location of your home, type, size and more.
It's also worth keeping in mind that energy-efficient windows will usually cost more initially, but Energy Star estimates that switching out the windows on your Newmarket home translates to an average energy savings of $236 to $319 each year for single-pane window replacement, or between $87 to $126 each year for double-pane windows. How much you'll save by upgrading to energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.
Another factor that affects the overall cost is the material you choose for your frame. Aluminum frames are generally the least pricey and are sturdy and relatively maintenance-free, but they offer poor insulation. On the other hand, wood frames cost the most, as they are aesthetically pleasing and offer 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 considering a window installation is to think about whether you should get a full-frame or pocket installation.
Full-frame installations entail replacing the total window, including the trim, frame and sill. You most likely need a full-frame installation when you want to change the style of your windows or your window has considerable damage or rot. Because full-frame installations are more involved, they will increase the total cost. Pocket installations (or retrofits) entail installing a new window within its existing frame, which makes pocket installations take less time and therefore cost less. However, if the frame has any damage or rot, you should opt for a full-frame installation instead.
Your window installation company should be able to help you figure out what's best for your needs. In Newmarket, the decision will mostly depend on the age of your windows and if there's any moisture damage. Wood can decay if not maintained properly over the years, so it's a good idea to have a professional check on your frames and window sills.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Newmarket
EcoWatch reviews are different from most reviews since we evaluate these companies through a sustainability lens. Along with energy efficiency, we reviewed several window installers in Newmarket and assigned rankings using the following methodology:
Service Area
Because this is a guide for Newmarket, we only included companies that provide services to the city. There are certainly other reputable providers that didn't make the cut because they wouldn't be able to serve homeowners in Newmarket.
Work Quality
When it comes to new windows, the quality and variety of services can often play just as important of a role in insulation and performance as the brand of window you opt for. 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
Another self-explanatory yet super important review factor is customer feedback. If the majority of customers don't have nice things to say about their service from a certain company, you won't see it featured on EcoWatch.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing providers' prices, we awarded higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed previously, windows are a sizable investment, so you'll want to make sure that investment is well protected. Window installation companies that provide lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Because of Newmarket's climate, homeowners will want to mitigate low efficiency, rot and water damage. We factored in local experience to reflect the ability of Newmarket window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Newmarket, NH Window Replacement FAQs
What is the average cost to install new windows in a home?
The national average cost of replacing a window is around $600 but can range between $200 and $1,200, depending on a few different factors. The price is generally influenced by the type and material of the window, the size of the window and the location of your property. Also, keep in mind that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.
What kind of window is the best for energy efficiency?
A window's energy efficiency depends on several factors, including the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are typically the most energy-efficient and are certified by the U.S. Department of Energy.
What services do window replacement companies provide?
Window installers travel to your property to remove your old windows and replace them with new ones. Some providers install products made by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation is complete.
When is the best time of year to replace windows?
Replacement windows can be installed any time of the year, but warmer weather is typically better. 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 the home, so the temperature outside doesn't necessarily matter that much. What's most important is that the weather should be dry.
When is it time to replace your windows?
Windows generally have a lifespan of around 20 to 30 years, but anytime you notice damage on your windows, it's a good time to have an expert take a look at them to determine if they are in need of a repair or replacement.