20 Best Window Companies in Derry, NH (2025 Reviews)
Thinking about replacing your home's windows? We’ve got all the information you need in this list of the best window installation companies.
We analyzed all the top-rated window companies in Derry and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
Whether you're updating for style or have damaged windows, windows play a key role in conserving electricity in your home. Traditional, outdated windows can cost you in energy bills. As a matter of fact, the Department of Energy estimates that about 30% of your home’s heat or cool air could be lost through your windows.
Replacement windows improve your home’s insulation, not only making you more comfortable during extreme temperatures, but also saving you some money and helping the environment.
So if you’re constructing a new home, renovating or updating your windows in Derry, this guide is the best place to get started.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
Best Window Installation & Replacement Companies in Derry
The EcoWatch Reviews team researched dozens of installers across the country to find the best window installation companies for our readers. The companies mentioned in this article passed our review standards for energy-efficient offerings as well as customer service, local expertise, price and beyond.

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. This provider has 27 years of experience in the windows business, and it has proved to be one of the most respected companies in Derry. Hundreds of positive reviews on customer review websites back the company's reputation.
You may want to consider choosing Window World if you're interested in a installer 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 WindowsWindow World 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 make sure to ask your Window World representative when inquiring about services.
How much does Window World cost in Derry?Although pricing information is not available on Window World’s website, it's known for offering some of the most affordable window installations around. The best way to get more accurate information is to request 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. This provider has 27 years of experience in the windows business, and it has proved to be one of the most respected companies in Derry. Hundreds of positive reviews on customer review websites back the company's reputation.
You may want to consider choosing 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 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 make sure to ask your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Derry?Although pricing information is not available on Andersen’s website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. The best way to get more accurate information is to request a free 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 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. This provider has 23 years of experience in the windows business, and it has proved to be one of the most respected companies in Derry. Hundreds of positive reviews on customer review websites back the company's reputation.
You may want to consider choosing Aeroseal if you're interested in a installer that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal 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 make sure to ask your Aeroseal representative when inquiring about services.
How much does Aeroseal Windows cost in Derry?Although 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 information is to request a free quote from the company.
Please note that the following companies are national, meaning the quality of customer service may vary depending on your local team. We have tried to be unbiased and transparent by describing pros and cons for every provider.
More Window Companies in Derry
Renewal by Andersen of Boston
Northborough, MAGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Double-Hung
Skylights
Window Replacement/Installation
Bay Windows
Glass Doors
Power Home Remodeling
Marlborough, MAGood Customer Service
Services Offered
Energy-Efficient Options
Window Replacement/Installation
DaBella
Salem, NHTimely Service
Good Customer Service
Services Offered
Glass Doors
Vinyl Frames
Window Replacement/Installation
Double-Hung
Window Nation
Norwood, MAFree assessment
Good Customer Service
Educational Website
Price Transparency
Services Offered
Vinyl Frames
Bay Windows
Energy-Efficient Options
Double-Hung
Window Replacement/Installation
Custom Window Designs
Glass Doors
Pro Entry Installs LLC
Salem, NHEducational Website
Timely Service
Price Transparency
Good Customer Service
Services Offered
Glass Doors
Double-Hung
Window Replacement/Installation
Bay Windows
Manny's Roofing
Pelham, NHTimely Service
Price Transparency
Free assessment
Educational Website
Good Customer Service
Services Offered
Skylights
Window Replacement/Installation
Roof Windows
Affordable Vinyl Windows & Siding Inc
Auburn, NHGood Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Vinyl Frames
Geno the Handyman
Stoneham, MAFree assessment
Timely Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Window Repair
First Choice Construction, LLC
Beverly, MAGood Customer Service
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Great Bay Roofing & Exteriors
Rochester, NHGood Customer Service
Free assessment
Price Transparency
Educational Website
Services Offered
Bay Windows
Window Replacement/Installation
Skylights
Mighty Dog Roofing Metro West Boston
Needham, MAFree assessment
Timely Service
Price Transparency
Good Customer Service
Services Offered
Skylights
Window Repair
Window Replacement/Installation
Rogers Insulation Specialists
Framingham, MAPrice Transparency
Free assessment
Timely Service
Good Customer Service
Services Offered
Triple Pane Glass
Window Replacement/Installation
Energy-Efficient Options
H & J Homes Solutions LLC
Shrewsbury, MAFree assessment
Good Customer Service
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Lighthouse Contracting Group, LLC
Gilford, NHGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Closet & Storage Systems
Auburn, MAGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Mirrors
Glass Showers
Dependable J M R Siding
Manchester, NHFree assessment
Services Offered
Vinyl Frames
Window Replacement/Installation
Energy-Efficient Options
Dracut Window & Door
Dracut, MAFree assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Glass Routes Co
Madbury, NHPrice Transparency
Good Customer Service
Educational Website
Free assessment
Services Offered
Glass Showers
Vinyl Frames
Custom Glass
Mirrors
Window Replacement/Installation
Dover Roofing LLC
Dover, NHGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Skylights
Window Replacement/Installation
Odds & Ends Handyman Service
Salem, MAPrice Transparency
Services Offered
Window Replacement/Installation
Glass Doors
Calculate how much you can expect to pay for window installation and replacement in Derry, 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 Derry Saves You Money
Upgrading to energy-efficient windows can help improve the comfort of your home and help you save on power bills. Here are more details about how upgrading your windows could benefit you:
- Save money on power bills: According to the Department of Energy, heat gained or lost through windows makes up around 25-30% of residential energy use. Replacing your windows with energy-efficient models can help decrease how much you have to pay, therefore saving you about 12% more on your bills.
- Protect your valuables: The low-emissivity coatings on many Energy Star certified windows help prevent your floors, carpets and furniture from fading by filtering out UV rays.
- Protect your investment: When you have an older home, your windows could also be outdated or leaky. Keeping your windows up to date is an important part of maintaining your property and its real estate value.
- Decrease your carbon footprint: Because energy-efficient windows improve the insulation in your home, you can reduce your indirect greenhouse gas emissions by about 12%, according to Energy Star.
Estimated Cost of Window Replacement in Derry
Let’s go over the cost of replacing your windows and the types of services offered by installers.
How Much Do New Windows Cost?
Even though the national average cost to install one window is around $600, it can range from $200 to $1,200. But costs will vary considerably depending on the current condition of your home, the quality of your products, the number of windows you need and your location. Many window companies also offer replacement door installations and other add-ons like shutters, baths, coating and more. Additional services will increase overall project costs.
Whether or not you want energy-efficient windows is another factor that will determine 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 Derry.
Asking for free quotes from several companies is the best way to find out which one is right for you.
What Services do Window Installers Offer?
The first question to ask yourself when planning a window installation is: Should you get a full-frame installation or a pocket installation?
Full-frame installations entail replacing the full window, including the frame, trim 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 rot. These installations are more involved and will raise overall costs. A pocket installation means replacing a window within the existing frame, which tends to be less expensive than a full-frame installation.
If you’re hiring a reputable window installation company, your company will be able to recommend the best type for your project. In Derry, the choice will mostly be based on how much damage there is currently and how old your existing frames are.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
How We Choose the Best Window Installers in Derry
EcoWatch reviews are different from most reviews since we’re examining these companies through a sustainability lens. Along with energy efficiency, we evaluated window companies all across the state and assigned rankings using the following methodology:
Service Area
Because this is a guide for Derry, we paid more attention to companies that cover the city. There are certainly reputable providers that didn’t make the list because they wouldn’t be able to serve homeowners in Derry.
Work Quality
When selecting new windows, the quality and breadth of services often plays just as important of a role in insulation and performance as the brand you get. We do rate window installers higher if they offer high-quality products, but we also factor in 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 feedback about their experience with a certain window installation company, you won’t see it featured on EcoWatch.
Cost
This one is a give-and-take: as with most services, cheap window installation companies may not provide the highest quality service. On the other hand, we want to ensure we’re highlighting companies that provide 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. For that reason, window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of Derry’s climate, homeowners will want to mitigate low efficiency, water damage and rot. We factored in local experience to reflect the ability of Derry window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Derry, NH Window Replacement FAQs
How much does a window install cost?
The average cost of installing one window can range from $450 to $650. There are a variety of factors that influence the cost, such as local labor costs, the number of windows, how energy-efficient the windows are, your property’s location, the materials used in designing the windows and styles and sizes of windows.
Which kind of window should I get?
A window’s energy efficiency is affected by a number of factors, such as the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are typically the most energy-efficient since they are certified by the U.S. Department of Energy.
When do I have to use a window installation company?
Unless you’re handy and have the tools needed to replace your own windows, we recommend hiring a professional installer. The process of installing windows is quite involved and can take anywhere from four to six hours for one window. Although it’s tempting to try to save money by doing it yourself, hiring a professional is a faster, more efficient and safer option.
When is the best time of year to replace windows?
While you can install windows any time of year, warmer weather is generally better for replacing windows. Additionally, the weather should be dry, since rain can make the installation harder.