20 Best Window Companies in Londonderry, NH (2025 Reviews)

When it’s time to replace your windows, our guide to the best window installation companies can help you find the provider for you.

We analyzed all the top-rated window companies in Londonderry and selected the best 20 based on:

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

By EcoWatch Local Advisors

Updated January 24, 2025

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.

The EcoWatch Reviews team is all about helping Londonderry homeowners make their homes more eco-friendly. The Department of Energy estimates that heat gained or lost through traditional or outdated windows could be responsible for about 30% of heating and cooling use. In Londonderry, where the electricity bills are an average of $35 per month, that’s almost $$124 per year wasted.

That’s bad for both your wallet and the environment, but one of the top window installation companies can help with that.

Unlike other sites, EcoWatch ranks window replacement companies on energy efficiency while also taking into consideration cost, customer satisfaction and service area.

Advertisement

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

Best Window Installation & Replacement Companies in Londonderry

The EcoWatch Reviews team researched many window providers across Londonderry to narrow our list down to the top ones. The installers in this article passed our review standards for energy-efficient offerings as well as customer service, local expertise, price and beyond.

Window World logo
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
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. Window World has about 27 years of experience in the window installation sector.

It has established itself as a company 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

There are a wide range of window types available from Window World, some of which are Energy Star products. 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 Londonderry?

Prices aren’t displayed on Window World’s website, but it's known for offering some of the most affordable window installations around. If you’d like more accurate information, you can request a quote on the company’s website.

Renewal by Andersen logo
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon 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 installation sector.

It has established itself as a company 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

There are a wide range of window types available from Renewal by Andersen, some of which are Energy Star products. 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 Londonderry?

Prices aren’t displayed 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. If you’d like more accurate information, you can request a quote on the company’s website.

Aeroseal Windows logo
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 is 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 about 23 years of experience in the window installation sector.

It has established itself as a company that installs windows and doors at businesses across the Eastern U.S.

Energy Efficiency of Aeroseal Windows Windows

There are a wide range of window types available from Aeroseal Windows, 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 Londonderry?

Prices aren’t displayed on Aeroseal’s website, but it provides high-quality windows at a competitive price point. If you’d like more accurate information, you can request a quote on the company’s website.

We have tried to stay unbiased and transparent by mentioning pros and cons for each company. Additionally, any partnerships do not influence our rankings.

More Window Companies in Londonderry

Renewal by Andersen of Boston

Northborough, MA
4.8
★★★★★
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Bay Windows
  • Service icon Double-Hung
  • Service icon Glass Doors
  • Service icon Skylights

Website: https://www.renewalbyandersen.com/window-company/096-boston-ma/about-us
Address: 30 Forbes Rd, Northborough, MA 01532
Phone: (508) 351-2236

Power Home Remodeling

Marlborough, MA
2.9
★★★★★
  • Pros icon Good Customer Service

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation

Website: https://powerhrg.com/
Address: 362 Elm St, Marlborough, MA 01752
Phone: (508) 460-1943

DaBella

Salem, NH
4.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames
  • Service icon Glass Doors
  • Service icon Double-Hung

Website: https://dabella.us/location/salem/
Address: 13 Red Roof Ln Suite 201, Salem, NH 03079
Phone: (603) 691-2339

Window Nation

Norwood, MA
4.6
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Custom Window Designs
  • Service icon Bay Windows
  • Service icon Energy-Efficient Options
  • Service icon Vinyl Frames
  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Double-Hung

Website: https://www.windownation.com/boston-showroom/
Address: 575 University Ave, Norwood, MA 02062
Phone: (781) 619-8591

Affordable Vinyl Windows & Siding Inc

Auburn, NH
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Vinyl Frames

Website: http://www.affordwindow.com/
Address: 320 Rockingham Rd STE 5, Auburn, NH 03032
Phone: (603) 647-7474

Pro Entry Installs LLC

Salem, NH
5.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Doors
  • Service icon Bay Windows
  • Service icon Double-Hung

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

Manny's Roofing

Pelham, NH
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Timely Service
  • Pros icon Free assessment

Services Offered

  • Service icon Roof Windows
  • Service icon Window Replacement/Installation
  • Service icon Skylights

Website: http://www.mannysroofing.com/
Address: 1197 Bridge St, Pelham, NH 03076
Phone: (603) 800-7663

Geno the Handyman

Stoneham, MA
5.0
★★★★★
  • Pros icon Timely Service
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Window Repair
  • Service icon Energy-Efficient Options

Website: http://genothehandyman.com/
Address: 200F Main St #130, Stoneham, MA 02180
Phone: (781) 208-5696

First Choice Construction, LLC

Beverly, MA
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation

Website: http://firstchoiceconstruction.com/
Address: 88 Elliott St, Beverly, MA 01915
Phone: (978) 922-3949

Great Bay Roofing & Exteriors

Rochester, NH
5.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Skylights
  • Service icon Window Replacement/Installation
  • Service icon Bay Windows

Website: https://www.greatbayroofing.com/
Address: 12 N Main St, Rochester, NH 03867
Phone: (603) 748-7254

Mighty Dog Roofing Metro West Boston

Needham, MA
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Timely Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Skylights
  • Service icon Window Repair

Website: https://www.mightydogroofing.com/needham-ma
Address: 50 Dedham Ave R2, Needham, MA 02492
Phone: (781) 206-2717

Rogers Insulation Specialists

Framingham, MA
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Timely Service
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Triple Pane Glass
  • Service icon Energy-Efficient Options

Website: https://www.rogersinsulation.com/
Address: 225 Arlington St Suite G, Framingham, MA 01702
Phone: (508) 875-3700

H & J Homes Solutions LLC

Shrewsbury, MA
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website

Services Offered

  • Service icon Window Replacement/Installation

Website: https://h-j-homes-solutions-llc.business.site/
Address: 516 Boston Turnpike, Shrewsbury, MA 01545
Phone: (508) 202-0097

Lighthouse Contracting Group, LLC

Gilford, NH
5.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment

Services Offered

  • Service icon Window Replacement/Installation

Website: https://lighthousecontractinggroup.com/
Address: 104 Lily Pond Rd Unit A, Gilford, NH 03249
Phone: (603) 567-4172

Closet & Storage Systems

Auburn, MA
5.0
★★★★★
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Showers
  • Service icon Mirrors
  • Service icon Window Replacement/Installation

Website: http://www.closetandstoragesys.com/
Address: 81 Pinehurst Ave, Auburn, MA 01501
Phone: (508) 832-4044

Dependable J M R Siding

Manchester, NH
4.9
★★★★★
  • Pros icon Free assessment

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Vinyl Frames
  • Service icon Window Replacement/Installation

Website: https://jmrsiding.com/
Address: 65 Pine Island Rd, Manchester, NH 03103
Phone: (603) 669-5020

Dracut Window & Door

Dracut, MA
4.9
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation

Website: http://dracutwindowanddoor.com/
Address: 16 Holbrook Ave, Dracut, MA 01826
Phone: (978) 751-3667

Glass Routes Co

Madbury, NH
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website
  • Pros icon Free assessment
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Glass
  • Service icon Vinyl Frames
  • Service icon Window Replacement/Installation
  • Service icon Mirrors
  • Service icon Glass Showers

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

Dover Roofing LLC

Dover, NH
4.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Skylights
  • Service icon Window Replacement/Installation

Website: https://doverroofingcontractors.com/
Address: 120 Durham Rd, Dover, NH 03820
Phone: (603) 498-5741

Country Glass

Hudson, MA
4.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment

Services Offered

  • Service icon Glass Showers
  • Service icon Mirrors
  • Service icon Custom Glass
  • Service icon Energy-Efficient Options
  • Service icon Window Replacement/Installation

Website: http://www.countryglass.com/
Address: 78 Cherry St, Hudson, MA 01749
Phone: (978) 562-2332
Londonderry Window Cost Calculator

Calculate how much you can expect to pay for window installation and replacement in Londonderry, NH using our customized window cost calculator.

Estimated Window Cost:
161 homeowners have requested a free estimate in the last 3 days.

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 Londonderry Saves You Money

By upgrading to energy-efficient windows, you and your family can benefit in several ways, including:

  • Protect your investment: When your home is on the older side, your windows could also be outdated or drafty. Keeping your windows up to date is an important part of maintaining your property and its real estate value.
  • Reduce your carbon footprint: Reducing the amount of energy you use also lowers your carbon emissions. You could reduce it by about 152 pounds.
  • Protect your valuables: The low-emissivity coatings on many energy-efficient windows help reduce damage from the sun's UV rays to your floors, carpets and furniture.
  • Save on energy bills: Because energy-efficient windows decrease how much energy you need to heat or cool your home, they can help you save around $435 annually on your energy bills in Londonderry.

Estimated Cost of Window Replacement in Londonderry

Let’s go over the cost of installing new windows and the kinds of services you may need for your home.

How Much Do New Windows Cost?

Although the typical cost to replace one window is around $600, it can range from $200 to $1,200. Costs will differ significantly based on your location, the quality of your products, the current condition of your home and the number of windows you need. Many window companies also offer door installations and other add-ons like shutters, coating, baths and more. These extra services will increase your overall project costs.

Whether or not you choose energy-efficient windows is another factor that will influence the cost. These will almost always cost more than other windows, but on the other hand, you can save about $435 a year on your energy bills in Londonderry.

Costs will also vary based on the material you choose for your window frames. Aluminum frames have the lowest price. They’re sturdy, light and maintenance-free, but offer poor insulation. Vinyl frames are a bit more expensive and provide good insulation. Composite frames made with wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames cost the most and are the most in-demand. They’re also aesthetically pleasing and provide decent insulation for your home.

What Services do Window Installers Offer?

The first thing to ask yourself when planning a window installation is: Should you get a full-frame installation or a pocket installation?

A full-frame installation replaces the complete window, including the sill, frame, trim and the window panes. Because this type of installation is more involved, it will be more expensive than a pocket installation. Pocket installations are on the simpler end and won’t cost as much, as they entail merely replacing the window within its existing frame. But if the frame has any damage or rot, you may need a full-frame installation instead.

Your window replacement company should be able to help you decide what’s best for your needs. In Londonderry, the decision will mostly be based on how old your home is and if there’s any moisture damage. Wood can decay if not properly maintained over the years, so it’s good to have a professional check your frames and window sills.

Advertisement

Best Availability

Renewal by Andersen

★★★★★
4.5
  • Great Industry Reputation
  • Award-winning Company
  • Member of US Green Building Council
  • Manufactures products in-house
Save $375 Off Each Window
Get Estimate

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

How We Choose the Best Window Installers in Londonderry

EcoWatch differs from other reviewers, as we look at these companies through a sustainability lens. We have reviewed the best window installers in Londonderry mostly based on their energy efficient offerings, as it’s the most sustainable option and the best one for homeowners. Energy-efficient windows have been shown to lower energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:

Service Area

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

Work Quality

We’re willing to bet that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each installer included on this list to ensure its contractors are well-qualified and that the company has received a lot of positive customer feedback to vouch for its service.

Customer Reviews

Another self-explanatory yet very important review factor is customer feedback. If most customers don’t have nice feedback about their service from a certain company, you won’t see it featured on EcoWatch.

Cost

This one is a give-and-take: as with other services, cheap window installation companies may not provide the most quality service. Still, we want to ensure we’re highlighting companies that provide a spectrum of price and financing options so they’re accessible to most homeowners.

Warranty

As discussed previously, windows are a hefty investment, so you’ll want to make sure that investment is well protected. Window installation companies with lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Due to Londonderry’s climate, homeowners need to be wary of water damage, rot and low efficiency. We factored in local experience to reflect the ability of Londonderry window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.

Londonderry, NH Window Replacement FAQs

How much does a window install cost?

The typical cost of replacing one window can range from $450 to $650. There are many factors that influence the price, such as local labor costs, styles and sizes of windows, the number of windows, your property’s location, the materials used in designing the windows and how energy-efficient the windows are.

Which type of window is the best?

Generally, double-pane windows are more efficient than single-pane windows and windows that do not open are more efficient than windows that do. If you want to be sure you’ll have the most energy-efficient windows, look for models with the blue Energy Star certification attached to them — that means they’re certified energy-efficient by the U.S. Department of Energy.

Can you install your own windows?

If you’re handy and know how to replace a window, you may be able to install your own windows. However, if you don’t have the time or experience, we recommend hiring a professional.

What time of year should I replace my windows?

Though you can install windows any time of year, warmer weather is often better for installing replacement windows. Additionally, it shouldn’t be raining, as rain can make the installation more difficult.

How long does window installation take?

Since a window takes about 30 minutes to install, around 16 windows can be installed during an 8-hour work day.