30 Best Window Replacement Companies in Loudon, NH (Mar 2023)
Window Companies Near Me
Looking to improve your house's energy efficiency? The best window replacement companies can help.
We analyzed all the top window installers in Loudon and selected the top 30 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated March 14, 2023
Why you can trust EcoWatch
A review of the best window installation companies in Loudon may not seem like the most captivating article on EcoWatch, but trust us, windows have more of an impact on your life than you might realize. Damaged or outdated windows can cost you in energy bills. As a matter of fact, the Department of Energy estimates that 25-30% of your home's heat or cool air could be lost through your windows.
That's also bad for the environment, as the extra energy used by drafty windows increases your carbon footprint.
Because windows have such a great impact on your home, picking 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 installation companies, so you can make an informed decision more easily.
Best Affordability
Window World
- Great industry reputation
- EnergyStar Partner
- Lifetime warranty
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Member of US Green Building Council
- Great industry reputation
- No lifetime warranty
Best for Businesses
Aeroseal Windows
- Low number of customer complaints
- Custom Designs
- Many years of experience
- Not ideal for residential installations
Best Window Replacement Companies in Loudon
The EcoWatch Reviews team examined dozens of installers in Loudon to find the top window installation companies for our readers. We assessed the installers based on their energy-efficient offerings, local experience, coverage area, customer service, price and more.

Window World
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Great industry reputation
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EnergyStar Partner
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Lifetime warranty
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Quality of service will depend on your area
Window World has windows expertise in Loudon. Window World has about 27 years of industry experience, and it currently serves 200 locations nationwide. Many positive reviews from customers online back the company'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 WindowsThere 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 Loudon?Prices aren't available on Window World's website, but 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
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Award-winning company
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Member of US Green Building Council
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Great industry reputation
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No lifetime warranty
Renewal by Andersen provides the best availability in Loudon. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This window installation company has been in business since 1995 and currently serves nearly every state except Mississippi and West Virginia. Many positive reviews from customers online back the company's reputation.
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 WindowsRenewal by Andersen is an Energy Star partner and has a variety of energy-efficient windows that are Energy Star certified. 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 Loudon?While pricing information is not readily 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. If you'd like more accurate information, you can get a quote on the company's website.

Aeroseal Windows
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Low number of customer complaints
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Custom Designs
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Many years of experience
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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 established itself as one of the most reputable companies in Loudon.
It installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows is an Energy Star partner with a variety of energy-efficient windows that are Energy Star certified. 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 Loudon?Though prices are not available on Aeroseal's website, it provides high-quality windows at a competitive price point. The best way to know for sure is to receive a free quote from the company.

Universal Windows Direct
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Makes charitable contributions
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Manufactures products in-house
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Wide variety of products and services
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Lifetime warranty
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Limited service area
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Some installations carried out by third-party contractors
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Quality of service will depend on your area
Universal Windows Direct provides the best warranty in Loudon. Universal has been in the window installation business for about 20 years. Hundreds of positive reviews on customer review websites back the company's reputation.
You may want to consider opting for Universal if you're looking for a installer that has an industry-leading warranty covering products, parts and workmanship for life.
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 want Energy Star windows when inquiring.
How much does Universal Windows Direct cost in Loudon?Pricing information is not available on Universal's website since the cost of window installment depends on how many and what type(s) of windows you need. However, 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 inquire about a free quote on its website for more information about the cost.
Please note that the companies in this section are national, meaning the quality of customer service may vary depending on your local crew. We have tried to remain unbiased and transparent by including pros and cons for each provider.
More Window Replacement Companies in Loudon
Southers Construction
Dover, NH-
Locally Recognized for Quality
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Consistent Workmanship
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Excellent Customer Service
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Timely Service
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
Window World of New Hampshire
Manchester, NH-
Helps Educate Customers
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Consistent Workmanship
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Price Transparency
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Free Quotes
Services Offered
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Custom Windows
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Architectural Glass
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Sliding Glass
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Double-Hung
Clear Choice Home Improvements
Manchester, NH-
Excellent Customer Service
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No-fee Quotes
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Timely Service
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Locally Recognized for Quality
Services Offered
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Custom Window Designs
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Sliding Glass
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Double-Hung
Pella Windows & Doors of New London
New London, NH-
Educational Website
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Price Transparency
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No-fee Quotes
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Excellent Customer Service
Services Offered
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Architectural Glass
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Custom Window Designs
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
Queen City Glass & Mirror
Manchester, NH-
Good Customer Service
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Dependable Service
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Price Transparency
Services Offered
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Residential Windows
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Glass Showers
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Business Windows
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Sliding Glass
Pane Free Glass
Manchester, NH-
Free Quotes
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Excellent Customer Service
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Price Transparency
Services Offered
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Residential Windows
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Glass Showers
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Custom Windows
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Full-Service Installations
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Commercial Windows
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Double-Hung
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Sliding Glass
Blind Gallery New England
Stratham, NH-
Good Customer Service
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Educational Website
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Price Transparency
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No-fee Quotes
Services Offered
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Custom Window Designs
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Aluminum Window Frames
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Energy-Efficient Options
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Sliding Glass
Window Works Home Services, LLC
Wolfeboro, NH-
No-fee Quotes
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Supports Charities
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Price Transparency
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Good Customer Service
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
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Stained Glass
Pella Windows & Doors of Bedford
Bedford, NH-
Helps Educate Customers
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No-fee Quotes
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Good Customer Service
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No-Hassle Pricing
Services Offered
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Architectural Glass
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Custom Windows
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Commercial Windows
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Double-Hung
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Sliding Glass
Newell and Crathern
Loudon, NH-
Educational Website
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Price Transparency
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No-fee Quotes
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Excellent Customer Service
Services Offered
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Residential Windows
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Energy-Efficient Options
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Custom Windows
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Commercial Windows
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Double-Hung
Pella Windows & Doors of Meredith
Meredith, NH-
Price Transparency
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No-fee Quotes
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Helps Educate Customers
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Excellent Customer Service
Services Offered
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Architectural Glass
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Custom Windows
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Business Windows
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Double-Hung
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Sliding Glass
Glass Routes Co
Madbury, NH-
No-Hassle Pricing
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Free Quotes
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Good Customer Service
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Educational Website
Services Offered
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Glass Showers
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Residential Windows
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Custom Windows
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Commercial Windows
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Sliding Glass
Universal Windows Direct of Manchester
Manchester, NH-
Free Quotes
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Award-Winning
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Price Transparency
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Consistent Workmanship
Services Offered
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Custom Window Designs
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Sliding Glass
Traynor Glass Co. Inc
Hampstead, NH-
Free Quotes
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Good Customer Service
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Price Transparency
Services Offered
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Full-Service Installations
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Sliding Glass
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Glass Showers
F.B.I. Contracting LLC
Cofran Ave, NH-
No-fee Quotes
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Award-Winning
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Educational Website
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Excellent Customer Service
Services Offered
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Custom Windows
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Residential Windows
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Double-Hung
MasterCraft Roofing Siding Windows
Moultonborough, NH-
Dependable Service
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Educational Website
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No-fee Quotes
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Excellent Customer Service
Services Offered
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Custom Windows
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Sliding Glass
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Double-Hung
Northlite Glass & Mirror
Derry, NH-
Excellent Customer Service
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No-Hassle Pricing
Services Offered
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Residential Windows
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Tempered Glass
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Doors
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Sliding Glass
Anything & Everything Home improvement, LL
Tilton, NH-
Consistent Workmanship
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Free Quotes
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Good Customer Service
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Price Transparency
Services Offered
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Custom Windows
Glass America
10+ years in business · Meredith, NH-
Educational Website
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Free Quotes
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Excellent Customer Service
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Locally Recognized for Quality
Services Offered
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Custom Windows
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Business Windows
Beckett Glass & Aluminum
Concord, NH-
Excellent Customer Service
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Helps Educate Customers
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Price Transparency
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Free Quotes
Services Offered
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
Sensible Home Roofing Company
Derry, NH-
Excellent Customer Service
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No-fee Quotes
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Educational Website
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No-Hassle Pricing
Services Offered
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Custom Windows
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Sliding Glass
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Double-Hung
Affordable Vinyl Windows & Siding Inc
Auburn, NH-
Good Customer Service
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No-Hassle Pricing
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Dependable Service
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
Morgan Exteriors
Hooksett, NH-
Free Quotes
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Good Customer Service
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Helps Educate Customers
Services Offered
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Custom Windows
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Sliding Glass
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Double-Hung
Energy Improvements of NH, LLC
Pembroke, NH-
Good Customer Service
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No-fee Quotes
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Helps Educate Customers
Services Offered
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Custom Windows
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Aluminum Window Frames
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Double-Hung
Pemi Glass Company, Plymouth
Plymouth, NH-
Educational Website
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No-Hassle Pricing
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Good Customer Service
Services Offered
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Custom Windows
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Glass Showers
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Business Windows
Clearview Sunroom & Window LLC
Dover, NH-
Excellent Customer Service
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Dependable Service
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No-fee Quotes
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Educational Website
Services Offered
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Custom Window Designs
Premier Glass and Glazing
Brentwood, NH-
No-Hassle Pricing
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No-fee Quotes
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Educational Website
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Good Customer Service
Services Offered
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Custom Window Designs
S R Windows & Doors Plus Inc
Amherst, NH-
No-Hassle Pricing
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Excellent Customer Service
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Sliding Glass
H & H Exteriors
Pittsfield, NH-
No-fee Quotes
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Excellent Customer Service
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Price Transparency
Services Offered
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Custom Windows
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Full-Service Installations
KCS Replacement Windows & Siding
Rochester, NH-
No-Hassle Pricing
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Free Quotes
Services Offered
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Custom Window Designs
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Sliding Glass
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Double-Hung
How Installing Energy-Efficient Windows in Loudon Saves You Money
Switching to energy-efficient windows can improve the comfort of your home and help you save on power bills. Here's more information on how switching out your windows could help you:
- Protect your investment: The older your home is, the more likely it is that getting new windows will benefit you. Older homes tend to have windows that are outdated, drafty or potentially even damaged in some way. Updating your windows could help raise the value of your property if you decide to sell.
- Save on energy bills: Upgrading to energy-efficient windows reduces your energy bills by about 12% because you use less energy.
- Decrease your carbon footprint: You can reduce your carbon footprint by about 12% when you install Energy Star certified windows. In Loudon, that's about 152 pounds per year on average.
- Protect your valuables from fading: When you upgrade to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will be protected from fading because of their ability to filter out harmful UV rays.
Estimated Cost of Window Replacement in Loudon
When researching window installation, each company offers different services and costs. Let's go over some typical costs and services.
How Much Do New Windows Cost?
On average, Loudon homeowners can expect their window installations to range from $250 to $1,200. The average cost is at around $600. These figures vary depending on specific characteristics of your installation, like the location of your home, number of windows, material, size, type and more.
Whether or not you want 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 $477 a year on your energy bills in Loudon.
Getting free quotes from multiple installers is the best way to find out which one will work best for your budget.
What Services do Window Installers Offer?
There are typically two types of window installation services: full-frame and pocket installations.
A full-frame installation is a total window replacement. It involves taking out the old window, the windowsill, and the exterior and interior trim. It also involves extra materials, such as insulation and drip edges, which raise the total cost of the project. It's also worth noting that you may have to touch up the paint around the window after a full-frame installation. A pocket installation involves replacing a window without replacing the frame. So, instead of tearing out the whole window and rebuilding it, the contractor will just slide the replacement window (also called a retrofit or insert window) into the frame.
If you're still debating which kind of installation to get, you can consult with your provider and get their advice. The choice mostly depends on how old the frames are and if there's any damage.
Best Affordability
Window World
- Great industry reputation
- EnergyStar Partner
- Lifetime warranty
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Member of US Green Building Council
- Great industry reputation
- No lifetime warranty
Best for Businesses
Aeroseal Windows
- Low number of customer complaints
- Custom Designs
- Many years of experience
- Not ideal for residential installations
How We Choose the Best Window Installers in Loudon
EcoWatch reviews are different from most reviews, as we're examining these companies through a sustainability lens. Along with energy efficiency, we evaluated each installer and ranked them using the following methodology:
Service Area
Since this is a guide for Loudon, we paid more attention to companies that provide services to the city. There are certainly other reputable providers that didn't make the list because they wouldn't be able to serve homeowners in Loudon.
Work Quality
When choosing new windows, the quality and range of services can often play just as important of a role in overall efficiency and performance as the type of window 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
We analyzed patterns 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 quality of parts, cost, quality of installation, warranty, professionalism and more.
Cost
This one is a give-and-take: similar to most services, cheap window installation companies may not provide the most quality service. On the other hand, we want to make sure we're highlighting companies that offer a wide range of price and financing options so they're accessible to most homeowners.
Warranty
Protecting your investment in new windows is important. For that reason, window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Because of Loudon's climate, homeowners will want to mitigate water damage, low efficiency and rot. We factored in local experience to reflect the ability of Loudon window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Loudon, NH Window Replacement FAQs
What is the average cost to install new windows in a home?
The national average cost to replace a window is about $600 but can range between $200 and $1,200, based on a few different factors. The price is usually influenced by the location of your property, the type and material of the window and the size of the window. Also, bear in mind that energy-efficient windows may cost more initially but can save you a decent amount of money a year in energy bills.
What are the most common types of replacement windows?
The most common types of windows for homes are awning windows, casement windows, bay windows, picture windows, slider windows, double-hung and single-hung windows and transom windows.
What services do window replacement companies offer?
Window installation professionals cover the entire process — from replacing old windows with brand new ones to cleaning up after the windows have been put in place. In addition, some companies offer window manufacturing, customization and repairs.
How often should you replace windows?
Windows usually have a lifespan of 20 to 30 years, but anytime you notice damage on your windows, it's a good time to have them looked at by an expert to see if they need any repairs or replacements.
Should I replace my windows all at the same time?
If you want to get more efficient windows and save money on your energy bills, replacing all of your windows together is the only way to gain that benefit. On the other hand, if you have just a few windows that are broken or leaky, you can replace just those.