20 Best Window Companies in Windham, NH (2025 Reviews)
When you need to upgrade your windows, our reviews of the top window installation companies can help you find the right provider for you.
We analyzed all the top-rated window companies in Windham 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 aesthetics or have windows that need repairs, windows play a vital role in conserving electricity in your home. Potential leaks or drafts from your windows can make your AC or heater work extra hard in the summer or winter.
Replacement windows improve the insulation in your home, not only making you and your family more comfortable during the summer and winter, but also saving you money and helping the environment.
As windows are so important for your home, selecting the right company for you is a big choice to make. That’s why the EcoWatch team has put together this list of the best window replacement companies, so you can make an informed decision more easily.
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 Energy-Efficient Features
DaBella
- Great warranty
- Friendly sales representatives
- Offers good financing options
Best Window Installation & Replacement Companies in Windham
The EcoWatch team researched many window installation companies across Windham to narrow our list down to the best ones. The companies in this article scored the best in our review categories, which include energy-efficient offerings, local expertise, availability, customer service, 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 over 27 years of experience in the windows industry, and it currently serves 200 locations nationwide.
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 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 mention that you want energy-efficient windows to your Window World representative when inquiring about services.
How much does Window World cost in Windham?Prices are not available on Window World’s website because the cost of window replacement varies greatly based 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. The best way to know for sure is to ask for 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 over 27 years of experience in the windows industry, and it currently serves nearly every state except Mississippi and West Virginia.
Andersen may be the company for you if you're looking for 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 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 mention that you want energy-efficient windows to your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Windham?Prices are not available on Andersen’s website because the cost of window replacement varies greatly based 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. The best way to know for sure is to ask for 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. Aeroseal has over 23 years of experience in the windows industry, and it currently serves 13 states and Washington D.C.
Aeroseal may be the company for you if you're looking for one 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 mention that you want energy-efficient windows to your Aeroseal representative when inquiring about services.
How much does Aeroseal Windows cost in Windham?Prices are not available on Aeroseal’s website because the cost of window replacement varies greatly based on how many and what type(s) of windows you need. However, it provides high-quality windows at a competitive price point. The best way to know for sure is to ask for a free quote from the company.
We strive to stay unbiased and transparent by including pros and cons for each company we review. Additionally, our rankings are not affected by any partnerships.
More Window Companies in Windham
Renewal by Andersen Window Replacement
Smithfield, RIFree assessment
Price Transparency
Educational Website
Good Customer Service
Services Offered
Double-Hung
Custom Window Designs
Window Replacement/Installation
Bay Windows
Energy-Efficient Options
Vinyl Frames
Glass Doors
Power Home Remodeling
Marlborough, MAGood Customer Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
DaBella
Salem, NHGood Customer Service
Timely Service
Services Offered
Vinyl Frames
Glass Doors
Double-Hung
Window Replacement/Installation
Window Nation
Norwood, MAGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Vinyl Frames
Custom Window Designs
Double-Hung
Bay Windows
Energy-Efficient Options
Glass Doors
Pro Entry Installs LLC
Salem, NHGood Customer Service
Educational Website
Timely Service
Price Transparency
Services Offered
Glass Doors
Double-Hung
Window Replacement/Installation
Bay Windows
Manny's Roofing
Pelham, NHTimely Service
Price Transparency
Free assessment
Good Customer Service
Educational Website
Services Offered
Skylights
Roof Windows
Window Replacement/Installation
Affordable Vinyl Windows & Siding Inc
Auburn, NHGood Customer Service
Price Transparency
Services Offered
Vinyl Frames
Window Replacement/Installation
Geno the Handyman
Stoneham, MAFree assessment
Timely Service
Services Offered
Window Repair
Energy-Efficient Options
Window Replacement/Installation
First Choice Construction, LLC
Beverly, MAGood Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Mighty Dog Roofing Metro West Boston
Needham, MATimely Service
Good Customer Service
Price Transparency
Free assessment
Services Offered
Window Repair
Window Replacement/Installation
Skylights
Great Bay Roofing & Exteriors
Rochester, NHPrice Transparency
Educational Website
Good Customer Service
Free assessment
Services Offered
Skylights
Bay Windows
Window Replacement/Installation
Rogers Insulation Specialists
Framingham, MAPrice Transparency
Free assessment
Good Customer Service
Timely Service
Services Offered
Window Replacement/Installation
Triple Pane Glass
Energy-Efficient Options
H & J Homes Solutions LLC
Shrewsbury, MAFree assessment
Good Customer Service
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Closet & Storage Systems
Auburn, MAPrice Transparency
Good Customer Service
Free assessment
Educational Website
Services Offered
Glass Showers
Mirrors
Window Replacement/Installation
Lighthouse Contracting Group, LLC
Gilford, NHEducational Website
Good Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
N.E. Building & Restoration LLC
Attleboro, MAGood Customer Service
Price Transparency
Free assessment
Services Offered
Vinyl Frames
Window Replacement/Installation
Dracut Window & Door
Dracut, MAFree assessment
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Dependable J M R Siding
Manchester, NHFree assessment
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Vinyl Frames
Odds & Ends Handyman Service
Salem, MAPrice Transparency
Services Offered
Window Replacement/Installation
Glass Doors
Cechinel Siding & Windows
Somerville, MAGood Customer Service
Educational Website
Free assessment
Services Offered
Bay Windows
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in Windham, 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 Windham Saves You Money
Energy-efficient windows can offer benefits in several ways. Here are a few reasons you may want to make the switch:
- Save money on energy bills: Installing energy-efficient windows reduces your energy bills by about 12% because you need less energy.
- Protect your investment: When your home is on the older side, your windows could also be outdated or drafty. Upgrading your windows is an important part of maintaining your property and its value.
- 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.
- Reduce your carbon footprint: By using less energy after you upgrade to Energy Star certified windows, you’ll also be reducing your indirect greenhouse gas emissions by about 12%, according to Energy Star.
Estimated Cost of Window Replacement in Windham
When researching window installation, each company offers varying services and costs. Let’s look at some typical costs and services.
How Much Do New Windows Cost?
Generally, homeowners in Windham can expect that most window installations will cost between $250 and $1,200, with the most common installations sitting at about $600. How much it will cost is based on several factors, such as size, the location of your home, type, number of windows, material and more.
It’s also worth bearing in mind that energy-efficient windows will typically cost more initially, but Energy Star estimates that upgrading the windows on your Windham home can mean an average energy savings of $236 to $319 per year for single-pane window replacement, or between $87 to $126 per year for double-pane windows. The amount of money you’ll save by upgrading to energy-efficient windows varies based on your local climate, energy rates and other factors unique to your home.
Something else that affects the total cost is the material you choose for your frame. Aluminum frames are typically the least pricey and are sturdy and light, 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?
When considering window installations, there are typically two kinds that your installer will have: full-frame and pocket installations.
Full-frame installations involve replacing the full window — the sill, frame, trim and all. These are typically done when you want a new style for your windows or when it has a great amount of deterioration. Full-frame installations are more comprehensive and will increase overall costs. Pocket installations are on the simpler end and won’t cost as much because they entail merely replacing the window within its existing frame. But if the frame has any damage or deterioration, you may have to get a full-frame installation instead.
Your window replacement company should be able to help you choose what’s best for your needs. In Windham, the decision will mostly depend 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 a good idea to have a professional check your frames and window sills.
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 Energy-Efficient Features
DaBella
- Great warranty
- Friendly sales representatives
- Offers good financing options
How We Choose the Best Window Installers in Windham
EcoWatch differs from other reviewers because we evaluate these companies through a sustainability lens. We have decided to evaluate the top window installers in Windham mostly based on their energy efficient offerings, as it’s the most sustainable option and the best one for homeowners. Energy Star certified windows can lower energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:
Service Area
Because this is a guide for Windham, we only included companies that cover the city. There are other reputable providers that didn’t make our list because they wouldn’t be able to serve homeowners in Windham.
Work Quality
When installing new windows, the quality and variety of services can often play just as important of a role in overall efficiency and performance as the type of window you opt for. We do give window installers more points if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
We analyzed trends in recent online reviews to determine the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it reflects the quality of services across most other categories, including warranty, cost, quality of installation, professionalism, quality of parts and more.
Cost
Cheaper windows don’t necessarily mean better windows, but we know many of our readers want to keep costs as low as possible. When analyzing providers’ prices, we gave higher scores to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
Protecting your investment in new windows is important. That’s why window installation companies that give you 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 installers that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.
Windham, NH Window Replacement FAQs
What is the average cost to install windows in a home?
The national average cost of installing one window is around $600 but can range from $200 to $1,200, based on several factors. The price is usually dependent on the size of the window, the location of your property and the type and material of the window. Also, remember that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.
Which kind of window is the best?
Generally, double-pane windows will be more efficient than single-pane windows and windows that don’t open will be more efficient than windows that do. To be sure you’ll get the most energy-efficient windows, look for models that have the blue Energy Star certification — that means they’re certified energy-efficient by the U.S. Department of Energy.
Can I install my own windows?
Even though it is possible to install your own windows, doing so requires a lot of time and experience with home improvement projects. Using a window replacement company can help guarantee that the installation is done properly and that you can avoid spending the time and effort of doing it yourself.
Should I replace my windows all at the same time?
If you’re upgrading your windows because of energy-efficiency, replacing all the windows together is the only way to see a noticeable difference. On the other hand, if you have only one or two windows that are broken or drafty, you can replace just those.