29 Best Window Replacement Companies in Oakville, CT (2023 Reviews)
Window Companies Near Me
Looking to replace your home's windows? We've got all the information you need in this guide to the top window installation companies.
We analyzed all the top window installers in Oakville and selected the top 29 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 guide on the top window replacement companies in Oakville 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. Traditional or damaged windows could lead to having higher power bills during the winter or summer months.
Replacement windows improve the insulation in your home, not only making you and your family more comfortable during extreme temperatures, but also saving you money and helping the environment.
Unlike other sites, EcoWatch ranks window companies on energy efficiency while also balancing cost, customer satisfaction and service area.
Best Affordability
Window World
- Large serice area
- EnergyStar Partner
- Low prices relative to competitors
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Great industry reputation
- Member of US Green Building Council
- No lifetime warranty
Best for Residential Windows
Window Nation
- Manufactures products in-house
- Wide variety of products and services
- Custom designs
- Installation not covered by warranty
Best Window Replacement Companies in Oakville
The EcoWatch Reviews team evaluated dozens of window providers in Oakville to find the best ones for our readers. The installers in this article scored best in our review categories, which include energy-efficient offerings, availability, customer service, price, local expertise and more.

Window World
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Large serice area
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EnergyStar Partner
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Low prices relative to competitors
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Quality of service will depend on your area
Window World has windows expertise in Oakville. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This company has 27 years of experience in the window installation industry, and it has proved to be one of the most respected companies in the business.
You may want to consider picking 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 has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for Energy Star windows when inquiring. 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 Oakville?While pricing information is not readily available on Window World's website, it's known for offering some of the most affordable window installations around. If you'd like to know for sure, you can request a quote on the company's website.

Renewal by Andersen
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Manufactures products in-house
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Great industry reputation
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Member of US Green Building Council
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No lifetime warranty
Renewal by Andersen offers the best availability in Oakville. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has over 27 years of experience in the industry, and it currently provides services to nearly every state except Mississippi and West Virginia. Its reputation is backed by several positive reviews on customer review websites.
Andersen may be the company for you if you want 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 WindowsA 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. Not all of Andersen's offerings are Energy Star certified, so make sure you mention that you're interested in Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Oakville?Pricing details are not available on Andersen's website because the cost of window replacement depends 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 to know for sure, you can ask for a quote on the company's website.

Window Nation
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Manufactures products in-house
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Wide variety of products and services
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Custom designs
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Installation not covered by warranty
Window Nation is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This window installation company has been operating since 2006 and currently services residents within 75 miles of its showrooms, which are in 13 states. Its reputation is backed by many positive reviews on customer review websites.
Window Nation may be the company for you if you're looking for one that 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 carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for 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 Oakville?Pricing details are not available on Window Nation's website because the cost of window replacement varies greatly depending on how many and what type(s) of windows you need. However, 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. The best way to get more accurate information is to request a free quote from the company.

Aeroseal Windows
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Many years of experience
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Great industry reputation
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Low number of customer complaints
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Manufactures products in-house
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Custom Designs
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No lifetime warranty
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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 company has 23 years of experience in the window installation industry, and it has become one of the most respected companies in the business. The company has a lot of glowing reviews from customers online.
You may want to consider picking Aeroseal if you're looking for 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 that are Energy Star certified. 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 Oakville?Aeroseal doesn't have any cost information available on its website, but 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, which means the quality of the service may depend on your local team. We have tried to remain unbiased and transparent by listing both pros and cons for every provider.
More Window Replacement Companies in Oakville
Renewal by Andersen - Branford
Branford, CT-
Locally Recognized for Quality
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Free Quotes
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Reliable Appointment Windows
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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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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
TL Home Improvement LLC
Shelton, CT-
Award-Winning
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Timely Service
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No-Hassle Pricing
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Reliable Service
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 Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
Renewal by Andersen - Southern New England
Windsor Locks, CT-
Educational Website
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Arrives on Time
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Award-Winning
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No-fee Quotes
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 Windows
Nu-Face Home Improvements
Plantsville, CT-
Free Quotes
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No-Hassle Pricing
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Award-Winning
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Consistent Workmanship
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-
Award-Winning
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Price Transparency
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Consistent Workmanship
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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
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Residential Windows
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Business Windows
Advanced Window Systems LLC
Cromwell, CT-
Price Transparency
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Consistent Workmanship
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Good Customer Service
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Helps Educate Customers
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 Windows
Eastern Glass & Shower Door
Milford, CT-
No-fee Quotes
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Price Transparency
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Excellent Customer Service
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Helps Educate Customers
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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Commercial 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-
Educational Website
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Free Quotes
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Reliable Service
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Arrives on Time
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
Window World of Hartford
Manchester, CT-
No-fee Quotes
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Excellent Customer Service
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Price Transparency
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Helps Educate Customers
Services Offered
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Custom Windows
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Fast Delivery
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Sliding Glass
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Double-Hung
V. Nanfito Roofing & Siding
Meriden, CT-
Free Quotes
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Timely Service
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Price Transparency
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Award-Winning
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 Windows
Mr. Handyman of Guilford, North and East Haven
East Haven, CT-
Good Customer Service
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Award-Winning
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Free Quotes
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No-Hassle Pricing
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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Double-Hung
Turner Home Improvement Contractors, LLC,
Glastonbury, CT-
No-Hassle Pricing
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Helps Educate Customers
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Dependable Service
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Arrives on Time
Services Offered
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Residential Windows
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Commercial Windows
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Full-Service Installations
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Custom Window Designs
Peter L Brown
Granby, CT-
Helps Educate Customers
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Good Customer Service
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Dependable Service
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Timely Service
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-
Helps Educate Customers
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Free Quotes
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Price Transparency
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Excellent Customer Service
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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Business Windows
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Sliding Glass
Torrington Replacement Windows
Torrington, CT-
Excellent Customer Service
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Helps Educate Customers
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Price Transparency
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No-fee Quotes
Services Offered
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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
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Bay Windows
Plymouth Glass & Mirror, Inc.
Thomaston, CT-
Price Transparency
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Good Customer Service
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Free Quotes
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Award-Winning
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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Commercial Windows
Villwell Builders, LLC
Waterbury, CT-
Reliable Service
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No-fee Quotes
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Locally Recognized for Quality
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Good Customer Service
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
Renewal by Andersen Windows Connecticut
Cromwell, CT-
No-fee Quotes
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Price Transparency
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Good Customer Service
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Consistent Workmanship
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
Wallingford Glass
Wallingford, CT-
Consistent Workmanship
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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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Tempered Glass
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Doors
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Custom Windows
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Business 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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Price Transparency
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Free Quotes
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Helps Educate Customers
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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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-
Free Quotes
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Helps Educate Customers
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Price Transparency
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Excellent Customer Service
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
Ring's End
South Salem, NY-
Price Transparency
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Helps Educate Customers
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Good Customer Service
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No-fee Quotes
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
Cussons Sash
Glastonbury, CT-
No-Hassle Pricing
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Good Customer Service
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Helps Educate Customers
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No-fee Quotes
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
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Sliding Glass
Fiderio & Sons
Meriden, CT-
No-fee Quotes
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Arrives on Time
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Consistent Workmanship
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Educational Website
Services Offered
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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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Double-Hung
J C Tonnotti Window Co
Southington, CT-
Reliable Service
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Reliable Appointment Windows
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Free Quotes
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Excellent Customer Service
Services Offered
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Custom Window Designs
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Aluminum Window Frames
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Sliding Glass
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Double-Hung
Window Nation
Wallingford, CT-
Reliable Service
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Educational Website
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Good Customer Service
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Free Quotes
Services Offered
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Sliding Glass
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Custom Windows
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Energy-Efficient Options
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Double-Hung
Pella Windows & Doors of Monroe
Monroe, CT-
Good Customer Service
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Award-Winning
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Free Quotes
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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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Commercial Windows
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Double-Hung
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Sliding Glass
A Plus Exterior LLC
Milford, CT-
No-fee Quotes
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Reliable Service
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No-Hassle Pricing
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Reliable Appointment Windows
Services Offered
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Custom Windows
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Sliding Glass
Superior Remodelers
Newtown, CT-
Award-Winning
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Excellent Customer Service
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Free Quotes
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Price Transparency
Services Offered
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Residential Windows
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Energy-Efficient Options
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Custom Window Designs
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Commercial Windows
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Double-Hung
How Installing Energy-Efficient Windows in Oakville Saves You Money
When you switch to energy-efficient windows, you may see a few benefits, such as:
- Decrease your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% once you install Energy Star certified windows. In Oakville, that's about 147 pounds per year on average.
- Protect your investment: If your home is on the older side, your windows are most likely in need of replacement. Upgrading your windows can improve the insulation in your home and also help raise the value of your house if you decide to sell.
- Save on power bills: According to the Department of Energy, heat gained or lost through windows accounts for about 25-30% of residential energy use. Upgrading to energy-efficient models can help lower 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.
Estimated Cost of Window Replacement in Oakville
When considering window installation, each company provides different services and prices. Let's look at some typical costs and services.
How Much Do New Windows Cost?
According to our market research, the average cost of installing a single window is about $600. However, window replacement costs can range from $200 to $1,200 a window. But prices differ remarkably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also offer door installations, which will add extra costs to your project.
It's important to keep in mind that windows with the best efficiency may cost more initially but can save you hundreds of dollars by lowering your energy bills. Investing in certified energy-efficient windows can save Oakville homeowners $486+ a year when replacing single-pane windows.
We recommend requesting free quotes from multiple window installers to find the right windows and the company that works best for you.
What Services do Window Installers Offer?
Generally, there are two kinds of window replacement services companies provide: full-frame and pocket installations.
Full-frame installations are usually recommended when you want to change the style of your windows or your window has significant rot. With this service, your professionals will replace the whole window, including the sill, frame and trim. Pocket installations (or retrofits) involve replacing a window within its existing frame, which makes pocket installations more simple and affordable. But, if the frame has any rot or deterioration, you should opt for a full-frame installation instead.
If you're not sure which window installation service you should get, your installer should be able to help you out. In general, the decision is based on factors like the age and condition of the home, the type of building material, budget and time restrictions.
Best Affordability
Window World
- Large serice area
- EnergyStar Partner
- Low prices relative to competitors
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Great industry reputation
- Member of US Green Building Council
- No lifetime warranty
Best for Residential Windows
Window Nation
- Manufactures products in-house
- Wide variety of products and services
- Custom designs
- Installation not covered by warranty
How We Choose the Best Window Installers in Oakville
EcoWatch reviews are different from other reviews since we evaluate these companies through a sustainability lens. We've reviewed the top window replacement companies in Oakville mainly based on their energy efficient offerings, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows have been shown to lower energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
Because this is a guide for Oakville, we paid more attention to companies that serve the city. There are certainly other reputable providers that didn't make the cut because they wouldn't be able to serve homeowners in Oakville.
Work Quality
When it comes to new windows, the quality and range of services often plays just as important of a role in insulation and performance as the brand of window you opt for. We do give window installers higher marks if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
Another self-explanatory yet very important review factor is customer feedback. If most customers don't have nice things to say about their service from a certain company, it won't be featured on EcoWatch.
Cost
This one is a give-and-take: as with other services, cheap window installation companies are not going to provide the most quality service. Still, we want to ensure we're highlighting companies that offer a spectrum of price and financing options so they're accessible to most homeowners.
Warranty
As discussed previously, windows are a substantial investment, so you'll want to be certain that investment is protected. Window installation companies that have lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Because of Oakville's climate, homeowners need to be wary of low efficiency, water damage and rot. We factored in local experience to reflect the ability of Oakville window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Oakville, CT Window Replacement FAQs
What is the typical cost to replace windows in a home?
The national average cost to install a window is around $600 but can range from $200 to $1,200, depending on a variety of factors. The price is often influenced by the location of your property, the size of the window and the type and material of the window. Also, remember that energy-efficient windows may cost more upfront but can save you a decent amount of money a year in energy bills.
What are the different types of windows?
The most common types of windows for homes include: awning windows, casement windows, slider windows, double-hung and single-hung windows, picture windows, transom windows and bay windows.
What services do window installation companies provide?
Window installers cover the entire process — from replacing your old windows with new ones to cleaning up after the windows have been put in place. Additionally, some companies offer window manufacturing, customization and repairs.
When is the best time of year to replace windows?
Replacement windows can be installed at any time, but autumn might be the best season. Regardless of when you install them, the contractors will take steps to ensure that too much hot or cold air doesn't get into the home, so the temperature outside doesn't necessarily matter that much. What's more important than the temperature is that the weather should be dry.
How often should you replace your windows?
Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, they probably need to be replaced. Other than that, if your windows have any damage on them, or they have become difficult to operate, they may be in need of replacement.