27 Best Window Replacement Companies in Newmarket, NH (2023 Reviews)
Window Companies Near Me

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 window installers in Newmarket and selected the top 27 based on:

  • Customer reviews
  • Window replacement expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated March 14, 2023

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

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 If you have traditional, outdated windows, your HVAC system could be working overtime to heat or cool your house.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 Affordability

Window World

★★★★★
4.5

  • Large serice area
  • Great industry reputation
  • Low prices relative to competitors
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Member of US Green Building Council
  • Great industry reputation
  • Manufactures products in-house
  • More expensive than competition

Best Warranty

Universal Windows Direct

★★★★★
4

  • Manufactures products in-house
  • Wide variety of products and services
  • Makes charitable contributions
  • Limited service area

Best Window 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 logo
FAST QUOTE
as little as 30 seconds
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Large serice area
  • Pros icon Great industry reputation
  • Pros icon Low prices relative to competitors
Cons:
  • Pros icon 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. This provider has 27 years of experience in the window installation industry, and it has established itself as one of the most respected companies in Newmarket. Many positive reviews from customers online back the provider's reputation.

Window World may be the company for you if you're looking for one that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.

Energy Efficiency of Window World Windows

Window World carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want Energy Star windows when inquiring. 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 Newmarket?

Window World does not mention prices on its website, but it's known for offering some of the most affordable window installations around. Getting a free quote on its website is the best way to get more accurate information.

Renewal by Andersen logo
FAST QUOTE
as little as 30 seconds
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Member of US Green Building Council
  • Pros icon Great industry reputation
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon More expensive than competition

Renewal by Andersen provides the best availability in Newmarket. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window business for around 27 years. Its reputation is backed by hundreds of positive reviews from customers online.

Andersen may be the company for you if you want one 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 Windows

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. Not all of Andersen's offerings are Energy Star certified, so make sure you mention that you're interested in Energy Star windows when inquiring.

How much does Renewal by Andersen cost in Newmarket?

Andersen does not mention prices on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Getting a free quote on its website is the best way to know for sure.

Universal Windows Direct logo
FAST QUOTE
as little as 30 seconds
Best Warranty

Universal Windows Direct

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 2002
Pros:
  • Pros icon Manufactures products in-house
  • Pros icon Wide variety of products and services
  • Pros icon Makes charitable contributions
Cons:
  • Pros icon Limited service area

Universal Windows Direct is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. This company has 20 years of experience in the window installation industry, and it has become one of the most respected companies in the business. Hundreds of positive reviews on customer review websites back the company's reputation.

If you're looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, this may be the perfect provider for you.

Energy Efficiency of Universal Windows Direct Windows

Universal Windows Direct is an Energy Star partner with a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Universal representative when inquiring about services.

How much does Universal Windows Direct cost in Newmarket?

Even though pricing is not available on Universal's website, 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. You can request a free quote on its website for more information about pricing.

Aeroseal Windows logo
FAST QUOTE
as little as 30 seconds
Best for Businesses

Aeroseal Windows

★★★★★
BBB Rating: A+
Locations: Regional
Founded: 1999
Pros:
  • Pros icon Many years of experience
  • Pros icon Great industry reputation
  • Pros icon Low number of customer complaints
  • Pros icon Manufactures products in-house
  • Pros icon Custom Designs
Cons:
  • Pros icon No lifetime warranty
  • Pros icon Not ideal for residential installations

Aeroseal Windows offers the best window installation for businesses in Newmarket. Aeroseal has around 23 years of experience in the window replacement sector.

It installs windows and doors at businesses across the Eastern U.S.

Energy Efficiency of Aeroseal Windows Windows

Aeroseal Windows is an Energy Star partner and has a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so be sure to ask your Aeroseal representative when inquiring about services.

How much does Aeroseal Windows cost in Newmarket?

While pricing information is not available on Aeroseal's website, it provides high-quality windows at a competitive price point. The best way to get more accurate pricing information is to ask for 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 Replacement Companies in Newmarket

Merrimack Valley Glass & Mirror

Newburyport, MA
4.3
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Arrives on Time
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Custom Window Designs
  • Service icon Stained Glass
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Sliding Glass
  • Service icon Aluminum Window Frames
  • Service icon Glass Showers

Website: https://www.merrimackvalleyglass.com/
Address: 5 Perry Way #7, Newburyport, MA 01950
Phone: (978) 463-9990

Nashua Glass

Nashua, NH
4.1
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon No-fee Quotes
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Tempered Glass
  • Service icon Doors
  • Service icon Custom Window Designs
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.nashuaglass.com/
Address: 110 Chestnut St, Nashua, NH 03060
Phone: (603) 882-0648

Northern Glass LLC

Ipswich, MA
4.1
★★★★★
  • Pros icon Price Transparency
  • Pros icon No-fee Quotes
  • Pros icon Dependable Service
  • Pros icon Good Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Tempered Glass
  • Service icon Doors
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: https://northern-glass.com/
Address: 29 Hayward St, Ipswich, MA 01938
Phone: (978) 356-7942

The Window Source NH

Seabrook, NH
4.0
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service
  • Pros icon Reliable Service
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.windowsourcenh.com/
Address: 779 Lafayette Rd Suite 1, Seabrook, NH 03874
Phone: (888) 282-2912

Glass Unlimited

Wells, ME
3.9
★★★★★
  • Pros icon Reliable Service
  • Pros icon No-Hassle Pricing
  • Pros icon Free Quotes
  • Pros icon Timely Service

Services Offered

  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: https://www.glassunlimitedme.com/
Address: 1213 Post Rd, Wells, ME 04090
Phone: (207) 646-8268

Timberlane Glass and Mirror

Plaistow, NH
3.7
★★★★★
  • Pros icon Consistent Workmanship
  • Pros icon Excellent Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon Free Quotes

Services Offered

  • Service icon Full-Service Installations
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Sliding Glass
  • Service icon Commercial Windows

Website: http://www.timberlaneglass.com/
Address: 108 Main St, Plaistow, NH 03865
Phone: (603) 382-6969

Southers Construction

Dover, NH
3.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Dependable Service
  • Pros icon Free Quotes
  • Pros icon Award-Winning

Services Offered

  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Custom Windows

Website: http://southersconstruction.com/
Address: 12 Crosby Rd, Dover, NH 03820
Phone: (603) 605-8037

Pro Entry Installs LLC

Salem, NH
3.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon Consistent Workmanship
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Double-Hung
  • Service icon Bay Windows

Website: https://proentry.com/
Address: 7 Cassidy Ave #2863, Salem, NH 03079
Phone: (603) 765-1312

Window World of New Hampshire

Manchester, NH
3.6
★★★★★
  • Pros icon Free Quotes
  • Pros icon Gives to charity
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Windows
  • Service icon Architectural Glass
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: https://www.windowworldnewhampshire.com/
Address: 735 E Industrial Park Dr Unit A, Manchester, NH 03109
Phone: (603) 935-9878

Guaranteed Aluminum & Vinyl Inc

Lowell, MA
3.3
★★★★★
  • Pros icon Free Quotes
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Reliable Service

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://lowell-window-replacement-glass-repair.com/
Address: 349 Bridge St, Lowell, MA 01850
Phone: (978) 452-2392

Demers Plate Glass Co

Haverhill, MA
3.3
★★★★★
  • Pros icon Free Quotes
  • Pros icon Helps Educate Customers
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Doors
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Business Windows

Website: https://www.demersplateglass.com/
Address: 373 River St, Haverhill, MA 01832
Phone: (978) 374-6387

Clear Choice Home Improvements

Manchester, NH
3.3
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Custom Windows
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: http://www.clearchoicehomeimprovement.com/
Address: 8025 S Willow St #107, Manchester, NH 03103
Phone: (603) 232-0237

Queen City Glass & Mirror

Manchester, NH
3.2
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Consistent Workmanship
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: http://qcglass.com/
Address: 295 Elm St, Manchester, NH 03101
Phone: (603) 666-0302

Pane Free Glass

Manchester, NH
3.2
★★★★★
  • Pros icon Price Transparency
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Custom Windows
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://panefreeglass.com/
Address: 270 Amory St #17, Manchester, NH 03102
Phone: (603) 497-1830

Blind Gallery New England

Stratham, NH
3.2
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency
  • Pros icon Free Quotes
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Energy-Efficient Options
  • Service icon Sliding Glass

Website: http://www.blindgallerynewengland.com/
Address: 72 Portsmouth Ave, Stratham, NH 03885
Phone: (978) 857-1617

Alton Bay Blinds of New England

Hampton, NH
3.2
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free Quotes
  • Pros icon Locally Recognized for Quality
  • Pros icon Educational Website

Services Offered

  • Service icon Custom Windows
  • Service icon Sliding Glass
  • Service icon Business Windows
  • Service icon Double-Hung

Website: https://www.abblinds.com/
Address: 387 Lafayette Rd, Hampton, NH 03842
Phone: (603) 965-2114

Atlantic Window Warehouse

Newburyport, MA
3.2
★★★★★
  • Pros icon Free Quotes
  • Pros icon Arrives on Time
  • Pros icon Excellent Customer Service
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: https://www.atlwindow.com/
Address: 155 State St, Newburyport, MA 01950
Phone: (978) 465-9696

Methuen Glass 2

Methuen, MA
3.1
★★★★★
  • Pros icon Free Quotes
  • Pros icon No-Hassle Pricing
  • Pros icon Excellent Customer Service
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: http://www.methuenglass.com/
Address: 468 Merrimack St, Methuen, MA 01844
Phone: (978) 682-8233

Pella Windows & Doors of Bedford

Bedford, NH
3.1
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free Quotes

Services Offered

  • Service icon Architectural Glass
  • Service icon Custom Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.pellabranch.com/new-england/showrooms/bedford/
Address: 384 State Rte 101 Unit #2, Bedford, NH 03110
Phone: (603) 725-4670

Newell and Crathern

Loudon, NH
3.1
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Free Quotes
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Residential Windows
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: http://www.newellandcrathern.com/
Address: Loudon, NH
Phone: (603) 228-2102

Glass Routes Co

Madbury, NH
3.1
★★★★★
  • Pros icon Educational Website
  • Pros icon Free Quotes
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.glassroutes.net/
Address: 181 Littleworth Rd, Madbury, NH 03823
Phone: (603) 742-2600

Pella Windows & Doors of Newington

Newington, NH
3.1
★★★★★
  • Pros icon Good Customer Service
  • Pros icon No-fee Quotes
  • Pros icon Helps Educate Customers
  • Pros icon Price Transparency

Services Offered

  • Service icon Architectural Glass
  • Service icon Custom Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.pellabranch.com/new-england/showrooms/newington/
Address: 25 Fox Run Rd Suite 2, Newington, NH 03801
Phone: (603) 725-4690

Port City Glass

Salisbury, MA
3.1
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free Quotes
  • Pros icon Excellent Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.portcity-glass.com/
Address: 141 Bridge Rd, Salisbury, MA 01952
Phone: (978) 255-2803

HI Tech Window and Siding Installations Inc.

Methuen, MA
3.1
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Reliable Service
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Energy-Efficient Options

Website: http://www.hitechcorp.biz/
Address: 20 Aegean Dr #4, Methuen, MA 01844
Phone: (800) 851-0900

Universal Windows Direct of Manchester

Manchester, NH
3.1
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Free Quotes
  • Pros icon Award-Winning
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Windows
  • Service icon Sliding Glass

Website: http://www.universalwindowsmanchester.com/
Address: 720 E Industrial Park Dr #8, Manchester, NH 03109
Phone: (603) 218-3756

Patriot Exteriors

North Andover, MA
3.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Free Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.patriotexteriors.net/
Address: 1 Massachusetts Ave, North Andover, MA 01845
Phone: (978) 957-0454

Traynor Glass Co. Inc

Hampstead, NH
3.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Full-Service Installations
  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Business Windows
  • Service icon Sliding Glass
  • Service icon Glass Showers

Website: http://www.traynorglass.com/
Address: 43 Gigante Dr, Hampstead, NH 03841
Phone: (603) 329-6668

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 Affordability

Window World

★★★★★
4.5

  • Large serice area
  • Great industry reputation
  • Low prices relative to competitors
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Member of US Green Building Council
  • Great industry reputation
  • Manufactures products in-house
  • More expensive than competition

Best Warranty

Universal Windows Direct

★★★★★
4

  • Manufactures products in-house
  • Wide variety of products and services
  • Makes charitable contributions
  • Limited service area

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.

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