25 Best Window Replacement Companies in Derby, CT (Feb 2023)
Window Companies Near Me
When it's time to replace your windows, our reviews of the top window installation companies can help you find the right provider for you.
We analyzed all the top window installers in Derby and selected the top 25 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 January 12, 2023
Why you can trust EcoWatch
A guide on the top window installation companies in Derby may not seem like the most riveting article on the EcoWatch site, but trust us, windows have a more direct impact on your life than you might realize. 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 some money and helping the environment.
We've put together this list of the best installation companies to help you in your search, so you can not only enjoy brand new windows, but also save money on your electric bills.
Best Affordability
Window World
- Lifetime warranty
- Great industry reputation
- EnergyStar Partner
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Member of US Green Building Council
- Great industry reputation
- More expensive than competition
Best for Businesses
Aeroseal Windows
- Low number of customer complaints
- Great industry reputation
- Manufactures products in-house
- Not ideal for residential installations
Best Window Replacement Companies in Derby
The EcoWatch team assessed dozens of installers across the country to find the top window replacement companies for our readers. The installers mentioned in this article scored best in our review categories, such as energy-efficient offerings, customer service, price, local expertise, availability and more.

Window World
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Lifetime warranty
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Great industry reputation
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EnergyStar Partner
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Quality of service will depend on your area
Window World offers windows expertise in Derby. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has about 27 years of industry experience, and it currently serves 200 locations nationwide. Many positive reviews from customers online back the provider's reputation.
It 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 WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World's offerings are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.
How much does Window World cost in Derby?Window World does not outline prices on its website, but it's known for offering some of the most affordable window installations around. For more detailed information on the cost, you can get a quote from the company.

Renewal by Andersen
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Manufactures products in-house
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Member of US Green Building Council
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Great industry reputation
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More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the window installation industry, and it has become one of the best companies in the business. Its reputation is backed by a considerable amount of positive reviews on customer review websites.
You may want to consider picking Andersen if you're looking for 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 has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality Energy Star windows when inquiring. 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 Derby?Pricing details are not available on Andersen's website since 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. If you'd like more accurate information, you can request a quote on the company's website.

Aeroseal Windows
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Low number of customer complaints
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Great industry reputation
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Manufactures products in-house
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Not ideal for residential installations
Aeroseal Windows offers the best window installation for businesses in Derby. It's 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 company has been operating since 1999 and currently services 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 WindowsThe 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. Not all of Aeroseal's windows are Energy Star certified, so make sure you mention that you're interested in Energy Star windows when inquiring.
How much does Aeroseal Windows cost in Derby?Prices aren't displayed on Aeroseal's website, but it provides high-quality windows at a competitive price point. For more detailed information on pricing, you can receive a quote from the company.

Window Nation
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Award-winning company
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Manufactures products in-house
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Custom designs
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Wide variety of products and services
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Installation not covered by warranty
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Limited service area
Window Nation is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has been in the window industry for about 16 years. Its reputation is backed by several positive reviews on customer review websites.
It gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. Each product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation.
How much does Window Nation cost in Derby?Prices aren't listed on Window Nation's website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. For more detailed information on pricing, you can inquire about a quote from the company.
We strive to be unbiased and transparent by including pros and cons for every company we review. Additionally, our rankings are not affected by any partnerships.
More Window Replacement Companies in Derby
Renewal by Andersen - Branford
Branford, CT-
Good Customer Service
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Price Transparency
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Timely Service
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Educational Website
Services Offered
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Residential Windows
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Custom Windows
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Business Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay & Bow Windows
TL Home Improvement LLC
Shelton, CT-
Arrives on Time
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Locally Recognized for Quality
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No-fee Quotes
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Price Transparency
Services Offered
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Residential Windows
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Fast Delivery
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
Renewal by Andersen
Stamford, CT-
No-fee Quotes
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Dependable Service
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Award-Winning
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Arrives on Time
Services Offered
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Custom Windows
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Commercial Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay Windows
Nu-Face Home Improvements
Plantsville, CT-
Reliable Appointment Windows
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No-fee Quotes
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Price Transparency
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Dependable Service
Services Offered
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Residential Windows
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Glass Showers
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Energy-Efficient Options
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Custom Windows
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Double-Hung
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Sliding Glass
Mr. Handyman of Upper Fairfield County
Fairfield, CT-
Educational Website
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Excellent Customer Service
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No-Hassle Pricing
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Award-Winning
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
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Residential Windows
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Business Windows
The Window People
Stamford, CT-
Good Customer Service
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Dependable Service
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Educational Website
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No-Hassle Pricing
Services Offered
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Residential Windows
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Architectural Glass
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Advanced Window Systems LLC
Cromwell, CT-
Price Transparency
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Arrives on Time
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Educational Website
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Reliable Service
Services Offered
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Glass Showers
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Energy-Efficient Options
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Eastern Glass & Shower Door
Milford, CT-
Price Transparency
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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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Doors
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Full-Service Installations
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Custom Windows
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Tempered Glass
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Residential Windows
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Business Windows
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Aluminum Window Frames
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Sliding Glass
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Glass Showers
Mainville Windows & Doors
Newington, CT-
Timely Service
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Good Customer Service
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Educational Website
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No-Hassle Pricing
Services Offered
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Residential Windows
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
V. Nanfito Roofing & Siding
Meriden, CT-
Consistent Workmanship
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No-Hassle Pricing
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Arrives on Time
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Good Customer Service
Services Offered
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Residential Windows
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Business Windows
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Full-Service Installations
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Custom Window Designs
Mr. Handyman of Guilford, North and East Haven
East Haven, CT-
Award-Winning
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Arrives on Time
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Good Customer Service
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Consistent Workmanship
Services Offered
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Custom Windows
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Residential Windows
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Commercial Windows
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Double-Hung
Lowe's Home Improvement
Riverhead, NY-
No-fee Quotes
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No-Hassle Pricing
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Excellent Customer Service
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Educational Website
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Capitol Glass Co Inc
West Hartford, CT-
No-fee Quotes
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Educational Website
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Good Customer Service
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No-Hassle Pricing
Services Offered
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Residential Windows
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Architectural Glass
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Doors
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Commercial Windows
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Sliding Glass
Torrington Replacement Windows
Torrington, CT-
No-Hassle Pricing
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Good Customer Service
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Free Quotes
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Helps Educate Customers
Services Offered
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Architectural Glass
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Energy-Efficient Options
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Custom Windows
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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
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Bay & Bow Windows
Clinton Glass
Clinton, CT-
Free Quotes
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Helps Educate Customers
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Good Customer Service
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Award-Winning
Services Offered
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Residential Windows
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Glass Showers
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Fast Delivery
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Custom Window Designs
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Business Windows
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Sliding Glass
Plymouth Glass & Mirror, Inc.
Thomaston, CT-
Free Quotes
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Good Customer Service
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Locally Recognized for Quality
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No-Hassle Pricing
Services Offered
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Glass Showers
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Residential Windows
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Architectural Glass
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Doors
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Custom Window Designs
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Business Windows
Villwell Builders, LLC
Waterbury, CT-
Consistent Workmanship
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No-Hassle Pricing
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No-fee Quotes
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Award-Winning
Services Offered
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Custom Window Designs
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Residential Windows
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Business Windows
Window King of Connecticut
Stamford, CT-
Good Customer Service
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Price Transparency
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Helps Educate Customers
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Timely Service
Services Offered
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Residential Windows
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Custom Windows
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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
Renewal by Andersen Windows Connecticut
Cromwell, CT-
Good Customer Service
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Reliable Service
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Free Quotes
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Price Transparency
Services Offered
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
THE GLASS EMPORIUM INC.
Kings Park, NY-
Excellent Customer Service
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No-Hassle Pricing
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No-fee Quotes
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Reliable Appointment Windows
Services Offered
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Residential Windows
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Heavy Glass
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Tempered 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
Wallingford Glass
Wallingford, CT-
No-fee Quotes
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Price Transparency
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Reliable Service
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Excellent Customer Service
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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Commercial Windows
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Double-Hung
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Stained Glass
Ring's End
Madison, CT-
Excellent Customer Service
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Free Quotes
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Educational Website
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Price Transparency
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
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Commercial Windows
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Aluminum Window Frames
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Architectural Glass
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Fast Delivery
Ring's End
Branford, CT-
Price Transparency
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Helps Educate Customers
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Excellent Customer Service
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Free Quotes
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Windows
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Business Windows
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Aluminum Window Frames
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Architectural Glass
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Fast Delivery
Ring's End
South Salem, NY-
Excellent Customer Service
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Free Quotes
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Helps Educate Customers
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No-Hassle Pricing
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
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Business Windows
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Aluminum Window Frames
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Architectural Glass
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Fast Delivery
Fiderio & Sons
Meriden, CT-
Free Quotes
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Excellent Customer Service
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Helps Educate Customers
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No-Hassle Pricing
Services Offered
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
How Installing Energy-Efficient Windows in Derby Saves You Money
Energy-efficient windows can benefit you in several ways. Here are some reasons you may want to take the plunge and make the switch:
- Protect your valuables from fading: The low-emissivity coatings on many energy-efficient windows filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
- Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its value, especially if your home is on the older side.
- Reduce your carbon footprint: Decreasing the amount of energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by 147 pounds per year on average.
- Save on energy bills: Once you switch to energy-efficient windows, you can see a reduction in your bills by about 12% since you'll require less energy to heat or cool your house.
Estimated Cost of Window Replacement in Derby
Each window replacement company provides various services and has different costs depending on a few factors.
How Much Do New Windows Cost?
According to our market research, the average cost to install a single window is about $600. However, window replacement costs can range from $200 to $1,200 per window. This is because window installations depend on several factors specific to your home, like the size, material and number of windows you need to replace, as well as the location of your property.
Whether or not you want energy-efficient windows is another factor that will affect the cost. These will usually cost more than other windows, but on the other hand, you can save about $510 a year on your energy bills in Derby.
The cost of your window installation will also vary based on the kind of window material you choose for the frames. Wood windows are usually the most expensive, though it depends if they are 100% wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are more efficient.
What Services do Window Installers Offer?
There are typically two types of window installation services: full-frame and pocket installations.
A full-frame installation replaces the total window, such as the windowsill, frame, trim and the window panes. Because this kind of installation requires more time, it will be more expensive than a pocket installation. Pocket installations (or retrofits) involve replacing a window within the existing frame, which makes pocket installations less labor-intensive and costly. However, if the frame has any damage or rot, you will most likely need a full-frame installation instead.
If you're still trying to decide which kind of installation to get, you can ask your installer and get their advice. The choice mostly is influenced by how old the frames are and if there's any damage present.
Best Affordability
Window World
- Lifetime warranty
- Great industry reputation
- EnergyStar Partner
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Member of US Green Building Council
- Great industry reputation
- More expensive than competition
Best for Businesses
Aeroseal Windows
- Low number of customer complaints
- Great industry reputation
- Manufactures products in-house
- Not ideal for residential installations
How We Choose the Best Window Installers in Derby
The EcoWatch Reviews team differs from most reviewers because we assess these companies through a sustainability lens. Along with energy efficiency, we assessed each installer and ranked them using the following methodology:
Service Area
Because this is a guide for Derby, we paid more attention to companies that serve the city. There are certainly other reputable providers that didn't make our list because of the low odds that they would serve the average homeowner in Derby.
Work Quality
When picking new windows, the quality and range of services often plays just as important of a role in overall efficiency and performance as the brand of window you opt for. 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 service from a certain company, you won't see it featured on EcoWatch.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers want to keep costs as low as possible. When analyzing the prices of providers, 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 to many homeowners. For that reason, window installation companies that offer lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to Derby's climate, homeowners will want to mitigate water damage, low efficiency and rot. We factored in local experience to reflect the ability of Derby window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Derby, CT Window Replacement FAQs
What is the typical cost to install windows in a home?
The national average cost to replace a window is about $600 but can range from $200 to $1,200, based on a few different factors. The price is generally influenced by the size of the window, the location of your property and the type and material of the window. Also, keep in mind that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.
What are the most common kinds of replacement windows?
There are several different kinds of windows you can get for your house, including transom windows, awning windows, picture windows, slider windows, bay windows, double-hung and single-hung windows and casement windows.
What services do window replacement companies do?
Window installation professionals travel to your property to remove your old windows and replace them with new ones. Some companies install products manufactured by other companies, whereas others install their own windows. The installer will also clean up after the installation is complete.
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 installing replacement windows. Additionally, the weather should be dry, since rain can make the installation harder.