30 Best Window Replacement Companies in Killingworth, CT (2023 Reviews)
Window Companies Near Me

Are you thinking of upgrading your windows? Our guide to the top window installation companies can help you narrow down which one to choose.

We analyzed all the top window installers in Killingworth and selected the top 30 based on:

  • Customer reviews
  • Window replacement expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated March 14, 2023

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

A guide on the best window replacement companies in Killingworth may not seem like the most captivating article on the EcoWatch site, but trust us, windows have more of an impact on your life than you might realize. Traditional or damaged windows can cost you in electricity bills. In fact, the Department of Energy estimates that about 30% of your house's heat or cool air could be lost through your windows.

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.

Efficient windows are particularly important in Killingworth, where the temperature varies throughout the year. According to Energy Star, switching to energy-efficient windows can save the average homeowner up to $403 a year.

Best Affordability

Window World

★★★★★
4.5

  • Great industry reputation
  • Lifetime warranty
  • EnergyStar Partner
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Member of US Green Building Council
  • Great industry reputation
  • Manufactures products in-house
  • No lifetime warranty

Best for Businesses

Aeroseal Windows

★★★★★
4

  • Custom Designs
  • Great industry reputation
  • Many years of experience
  • Not ideal for residential installations

Best Window Replacement Companies in Killingworth

The EcoWatch Reviews team assessed many window installation companies across Killingworth to narrow our list down to the top ones. We assessed the installers on energy-efficient offerings, price, customer service, coverage area, local experience and more.

Window World logo
FAST QUOTE
as little as 30 seconds
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
  • Pros icon EnergyStar Partner
Cons:
  • Pros icon Quality of service will depend on your area

Window World has windows expertise in Killingworth. Window World has been in the window installation industry for around 27 years. Its reputation is backed by all the positive reviews from customers online.

You may want to consider picking Window World if you're interested in a company 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 Windows

Window World has some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want 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 Killingworth?

Window World does not display prices on its website, but it's known for offering some of the most affordable window installations around. You can request a free quote on its website for more information about pricing.

Renewal by Andersen logo
FAST QUOTE
as little as 30 seconds
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Member of US Green Building Council
  • Pros icon Great industry reputation
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty

Renewal by Andersen has the best availability in Killingworth. This company has been in business since 1995 and currently provides services to nearly every state except Mississippi and West Virginia. The company has a lot of positive reviews from customers on online review websites.

Andersen may be the company for you if you're interested in 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 Windows

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. Not all of Andersen's windows are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.

How much does Renewal by Andersen cost in Killingworth?

Andersen doesn't have any prices available on its website, but 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 pricing information, you can request a quote on the company's website.

Aeroseal Windows logo
FAST QUOTE
as little as 30 seconds
Best for Businesses

Aeroseal Windows

★★★★★
BBB Rating: A+
Locations: Regional
Founded: 1999
Pros:
  • Pros icon Custom Designs
  • Pros icon Great industry reputation
  • Pros icon Many years of experience
Cons:
  • Pros icon Not ideal for residential installations

Aeroseal Windows provides the best window installation for businesses in Killingworth. Aeroseal has around 23 years of experience in the window replacement sector.

Aeroseal may be the company for you if you're interested in one that installs windows and doors at businesses across the Eastern U.S.

Energy Efficiency of Aeroseal Windows Windows

Aeroseal Windows is an Energy Star partner and has a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so be sure to ask your Aeroseal representative when inquiring about services.

How much does Aeroseal Windows cost in Killingworth?

While prices are not readily available on Aeroseal's website, 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 logo
FAST QUOTE
as little as 30 seconds
Best for Residential Windows

Window Nation

★★★★★
BBB Rating: A
Locations: Regional
Founded: 2006
Pros:
  • Pros icon Award-winning company
  • Pros icon Manufactures products in-house
  • Pros icon Custom designs
  • Pros icon Wide variety of products and services
Cons:
  • Pros icon Installation not covered by warranty
  • Pros icon Limited service area

Window Nation provides the best residential windows in Killingworth. It's 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. The provider has many glowing reviews from customers on online review websites.

You may want to consider choosing Window Nation if you're interested in a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.

Energy Efficiency of Window Nation Windows

Window Nation's commitment to sustainability shows in its energy-efficient window offerings. 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 Killingworth?

Pricing details are not available on Window Nation's website since the cost of window installment varies greatly based 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 pricing information is to receive a free quote from the company.

One thing to note is that the companies in this section are national, which means the quality of customer service may depend on your local team. We have tried to remain unbiased and transparent by including both pros and cons for every company.

More Window Replacement Companies in Killingworth

Renewal by Andersen - Branford

Branford, CT
4.6
★★★★★
  • Pros icon Consistent Workmanship
  • Pros icon Good Customer Service
  • Pros icon No-fee Quotes
  • Pros icon Locally Recognized for Quality

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Stained Glass
  • Service icon Sliding Glass
  • Service icon Bay Windows

Website: http://www.renewalbyandersen.com/window-company/865-southern-connecticut.aspx
Address: 38 N Harbor St, Branford, CT 06405
Phone: (203) 274-8950

TL Home Improvement LLC

Shelton, CT
4.6
★★★★★
  • Pros icon Free Quotes
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Educational Website

Services Offered

  • Service icon Residential Windows
  • Service icon Fast Delivery
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Double-Hung

Website: https://www.tlhomeimprove.com/
Address: 176 Ripton Rd, Shelton, CT 06484
Phone: (203) 870-5582

Nu-Face Home Improvements

Plantsville, CT
4.3
★★★★★
  • Pros icon Arrives on Time
  • Pros icon Dependable Service
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://nufacect.com/
Address: 5 Atwater St, Plantsville, CT 06479
Phone: (860) 385-8530

Advanced Window Systems LLC

Cromwell, CT
4.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon No-fee Quotes
  • Pros icon Price Transparency
  • Pros icon Arrives on Time

Services Offered

  • Service icon Glass Showers
  • Service icon Energy-Efficient Options
  • Service icon Custom Window Designs
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay Windows

Website: https://www.advancedwindowsystems.com/
Address: 14 Alcap Ridge, Cromwell, CT 06416
Phone: (860) 744-5770

North Shore Window Inc.

Bridgehampton, NY
4.0
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Award-Winning
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Fast Delivery
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung

Website: http://northshorewindowinc.com/
Address: 48 Foster Ave #2, Bridgehampton, NY 11932
Phone: (631) 537-6400

Eastern Glass & Shower Door

Milford, CT
4.0
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Doors
  • Service icon Full-Service Installations
  • Service icon Custom Window Designs
  • Service icon Tempered Glass
  • Service icon Residential Windows
  • Service icon Business Windows
  • Service icon Aluminum Window Frames
  • Service icon Sliding Glass
  • Service icon Glass Showers

Website: https://easternglassco.com/
Address: 940 Boston Post Rd, Milford, CT 06460
Phone: (203) 874-5754

Mainville Windows & Doors

Newington, CT
4.0
★★★★★
  • Pros icon Dependable Service
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://mainvillewindows.com/
Address: 187 Foxboro Dr, Newington, CT 06111
Phone: (860) 539-9988

United Glass & Mirror Co

Bozrah, CT
4.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service
  • Pros icon Locally Recognized for Quality

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Glass Showers
  • Service icon Heavy Glass
  • Service icon Tempered Glass
  • Service icon Doors
  • Service icon Custom Windows
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: http://www.neglassmirror.com/residential-2/
Address: 15 Stockhouse Rd, Bozrah, CT 06334
Phone: (860) 886-0539

Window World of Hartford

Manchester, CT
3.9
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Educational Website
  • Pros icon Reliable Service
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Fast Delivery
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: https://www.windowworldct.com/
Address: 409 New State Rd, Manchester, CT 06042
Phone: (860) 643-4568

V. Nanfito Roofing & Siding

Meriden, CT
3.9
★★★★★
  • Pros icon Dependable Service
  • Pros icon No-fee Quotes
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Full-Service Installations
  • Service icon Custom Windows

Website: https://www.vnanfito.com/
Address: 558 Hanover St, Meriden, CT 06451
Phone: (203) 639-1634

Mr. Handyman of Norwich, New London and Glastonbury

Norwich, CT
3.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Locally Recognized for Quality
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.mrhandyman.com/norwich-newlondon-ct/
Address: 66 Franklin St Suite 11, Norwich, CT 06360
Phone: (860) 300-3486

Mr. Handyman of Guilford, North and East Haven

East Haven, CT
3.9
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Dependable Service
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung

Website: https://www.mrhandyman.com/guilford-north-east-haven/
Address: 310 Main St Suite LL-4, East Haven, CT 06512
Phone: (203) 864-3287

Turner Home Improvement Contractors, LLC,

Glastonbury, CT
3.8
★★★★★
  • Pros icon Free Quotes
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers
  • Pros icon Arrives on Time

Services Offered

  • Service icon Residential Windows
  • Service icon Business Windows
  • Service icon Full-Service Installations
  • Service icon Custom Windows

Website: https://www.turnerhomeimprovement.com/
Address: 109 Commerce St H, Glastonbury, CT 06033
Phone: (860) 633-1400

Lowe's Home Improvement

Riverhead, NY
3.8
★★★★★
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.google.com/aclk
Address: Riverhead, NY
Phone: (631) 208-2190

Capitol Glass Co Inc

West Hartford, CT
3.8
★★★★★
  • Pros icon Price Transparency
  • Pros icon No-fee Quotes
  • Pros icon Excellent Customer Service
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Doors
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: http://www.capitolglass.com/
Address: 75 Grassmere Ave, West Hartford, CT 06110
Phone: (860) 236-1936

Clinton Glass

Clinton, CT
3.7
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Glass Showers
  • Service icon Fast Delivery
  • Service icon Custom Windows
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: https://www.clintonglassct.com/
Address: 221 E Main St, Clinton, CT 06413
Phone: (860) 664-3711

Plymouth Glass & Mirror, Inc.

Thomaston, CT
3.7
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Locally Recognized for Quality
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Doors
  • Service icon Custom Windows
  • Service icon Commercial Windows

Website: http://www.plymouthglass.com/
Address: 142 E Main St, Thomaston, CT 06787
Phone: (800) 227-0262

Villwell Builders, LLC

Waterbury, CT
3.7
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Helps Educate Customers
  • Pros icon Consistent Workmanship
  • Pros icon Locally Recognized for Quality

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Business Windows

Website: https://www.villwell.com/
Address: 2714 E Main St, Waterbury, CT 06705
Phone: (203) 879-2118

Thomas Garbati Builders, LLC

Waterford, CT
3.7
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Custom Window Designs
  • Service icon Residential Windows
  • Service icon Double-Hung

Website: http://garbatibuilders.com/
Address: 179 Butlertown Rd, Waterford, CT 06385
Phone: (860) 443-1232

Renewal by Andersen Windows Connecticut

Cromwell, CT
3.6
★★★★★
  • Pros icon Reliable Service
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency
  • Pros icon Free Quotes

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Double-Hung
  • Service icon Sliding Glass
  • Service icon Bay & Bow Windows

Website: http://www.renewalbyandersenct.com/
Address: 800 Corporate Row, Cromwell, CT 06416
Phone: (866) 337-4191

Wallingford Glass

Wallingford, CT
3.6
★★★★★
  • Pros icon Reliable Service
  • Pros icon Excellent Customer Service
  • Pros icon Free Quotes
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Tempered Glass
  • Service icon Doors
  • Service icon Custom Window Designs
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Stained Glass

Website: http://wallingfordglass.com/
Address: 801 N Main Street Ext, Wallingford, CT 06492
Phone: (203) 284-1220

Ring's End

Madison, CT
3.6
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon No-fee Quotes
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Custom Windows
  • Service icon Commercial Windows
  • Service icon Aluminum Window Frames
  • Service icon Architectural Glass
  • Service icon Fast Delivery

Website: https://www.google.com/aclk
Address: Madison, CT
Phone: (203) 245-0414

Ring's End

Branford, CT
3.6
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Double-Hung
  • Service icon Full-Service Installations
  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Aluminum Window Frames
  • Service icon Architectural Glass
  • Service icon Fast Delivery

Website: https://www.google.com/aclk
Address: Branford, CT
Phone: (203) 488-3551

Cussons Sash

Glastonbury, CT
3.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free Quotes
  • Pros icon Excellent Customer Service
  • Pros icon Gives to charity

Services Offered

  • Service icon Custom Windows
  • Service icon Residential Windows
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.cussonsash.com/
Address: 128 Addison Rd, Glastonbury, CT 06033
Phone: (860) 659-0354

Fiderio & Sons

Meriden, CT
3.6
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Arrives on Time
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers

Services Offered

  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Full-Service Installations
  • Service icon Double-Hung

Website: https://www.fiderio.com/
Address: 687 Broad St, Meriden, CT 06450
Phone: (203) 580-4948

J C Tonnotti Window Co

Southington, CT
3.6
★★★★★
  • Pros icon Consistent Workmanship
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Custom Windows
  • Service icon Aluminum Window Frames
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: http://www.jctonnotti.com/
Address: 205 Bristol St, Southington, CT 06489
Phone: (860) 621-1642

Window Nation

Wallingford, CT
3.6
★★★★★
  • Pros icon Excellent Customer Service
  • Pros icon Award-Winning
  • Pros icon Helps Educate Customers
  • Pros icon Dependable Service

Services Offered

  • Service icon Sliding Glass
  • Service icon Custom Windows
  • Service icon Energy-Efficient Options
  • Service icon Double-Hung

Website: https://www.windownation.com/hartford-ct-showroom/
Address: 1070 N Farms Rd Unit 1, Wallingford, CT 06492
Phone: (475) 253-0015

Pella Windows & Doors of Monroe

Monroe, CT
3.4
★★★★★
  • Pros icon Award-Winning
  • Pros icon Helps Educate Customers
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Windows
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.pellabranch.com/hartford/showrooms/monroe/
Address: 220 Monroe Turnpike, Monroe, CT 06468
Phone: (203) 880-6000

A Plus Exterior LLC

Milford, CT
3.4
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Arrives on Time
  • Pros icon Award-Winning
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Window Designs
  • Service icon Sliding Glass

Website: http://www.trustinaplus.com/
Address: 215 Bridgeport Ave, Milford, CT 06460
Phone: (203) 693-2225

AA Glass Inc

Bloomfield, CT
3.4
★★★★★
  • Pros icon Free Quotes
  • Pros icon Excellent Customer Service
  • Pros icon No-Hassle Pricing
  • Pros icon Reliable Service

Services Offered

  • Service icon Glass Showers
  • Service icon Residential Windows
  • Service icon Custom Window Designs
  • Service icon Commercial Windows
  • Service icon Sliding Glass

Website: https://www.aaglassinc.com/
Address: 1393 Blue Hills Ave, Bloomfield, CT 06002
Phone: (860) 243-3440

How Installing Energy-Efficient Windows in Killingworth Saves You Money

Energy-efficient windows can benefit you in several ways. Here are some reasons you may want to make the switch:

  • Protect your investment: If you have a relatively old home, your windows are most likely outdated. Updating your windows can improve the insulation in your home and also help increase the value of your house if you decide to sell.
  • Protect your valuables: The low-emissivity coatings on many Energy Star certified windows help prevent damage from the sun's UV rays to your floors, carpets and furniture.
  • Save on power bills: Switching to energy-efficient windows lowers your energy bills by about 12% since you use less energy.
  • Reduce your carbon footprint: By using less energy after switching to energy-efficient windows, you'll also be lowering your indirect greenhouse gas emissions by about 12%, according to Energy Star.

Estimated Cost of Window Replacement in Killingworth

Windows come in different purposes, shapes and styles, so costs and services will differ greatly based on your project. Below, we detail the typical cost and services that you can get from window installation companies.

How Much Do New Windows Cost?

According to our market research, the typical cost to replace a single window is about $600. However, window installation costs can range from $200 to $1,200 a window. Costs will differ significantly depending on your location, the quality of your products, the current condition of your home and the number of windows you need. A lot of window companies also offer replacement door installations and other add-ons like baths, coating, shutters and more. Additional services will increase your overall project costs.

It's also worth bearing in mind that energy-efficient windows will usually cost more upfront, but Energy Star predicts that switching out the windows on your Killingworth home translates to an average energy savings of $236 to $319 a year for single-pane window replacement, or between $87 to $126 a year for double-pane windows. The amount of money you'll save by switching to energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.

Costs will also vary based on the material of your frame. Aluminum frames are the least expensive. They're sturdy, light and maintenance-free, but offer poor insulation. Vinyl frames are somewhat expensive and offer good insulation. Composite frames made with wood fibers encased in plastic also offer good insulation and are moderately expensive. Wood frames cost the most and are the most in-demand. They're also aesthetically pleasing and offer decent insulation for your home.

What Services do Window Installers Offer?

The first step of a window replacement is to figure out whether you want a full-frame or pocket installation.

Full-frame installations involve replacing the complete window, including the frame, sill and trim. You most likely need a full-frame installation when you want to change the style of your windows or your window has significant damage or rot. Full-frame installations are more involved and will increase overall costs. Pocket installations (or retrofits) involve replacing a window within the existing frame, which makes pocket installations take less time and therefore cost less. But, if the frame has any rot or deterioration, you will most likely need a full-frame installation instead.

Your window replacement company will be able to help you figure out what's best for your needs. In Killingworth, the decision will mostly depend on how old your windows are and if there's any moisture damage. Wood can decay if not maintained properly over the years, so it's good to have a professional examine your frames and window sills.

Best Affordability

Window World

★★★★★
4.5

  • Great industry reputation
  • Lifetime warranty
  • EnergyStar Partner
  • Quality of service will depend on your area

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Member of US Green Building Council
  • Great industry reputation
  • Manufactures products in-house
  • No lifetime warranty

Best for Businesses

Aeroseal Windows

★★★★★
4

  • Custom Designs
  • Great industry reputation
  • Many years of experience
  • Not ideal for residential installations

How We Choose the Best Window Installers in Killingworth

In our search to make your home improvements easier and more eco-friendly in Killingworth, EcoWatch assessed many companies before landing on these. Along with energy efficiency, we reviewed several window installers in Killingworth and ranked them using the following methodology:

Service Area

Since this is a guide for Killingworth, we gave more points to companies that provide services to the city. There are certainly reputable providers that didn't make the list because they wouldn't be able to serve homeowners in Killingworth.

Work Quality

When installing new windows, the quality and variety of services often plays just as important of a role in overall efficiency and performance as the brand you get. We do give window installers higher marks if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

Customer Reviews

Customer feedback is another super important review factor. If most customers don't have good feedback about their service from a certain company, it won't be featured on EcoWatch.

Cost

This one is a give-and-take: similar to other services, cheap window installation companies are not going to provide the most quality service. On the other hand, we want to ensure we're highlighting companies that offer a variety of price and financing options so they're accessible to most homeowners.

Warranty

As discussed previously, windows are a sizable investment, so you'll want to make sure that investment is well protected. Window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Last but not least, we like to see companies that have been in the industry for a while. Window installers that have more years of experience will earn higher rankings by our standards. We like to see at least ten years of experience.

Killingworth, CT Window Replacement FAQs

How much does a window install cost?

The national average cost of installing a single window is about $600 but can range between $200 and $1,200, based on a variety of factors. The price is often dependent on the size of the window, the type and material of the window and the location of your property. Also, remember 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?

The most common types of windows for homes are picture windows, awning windows, casement windows, transom windows, slider windows, bay windows and double-hung and single-hung windows.

When should I use a window installation company?

Unless you have experience with home improvement projects and have the time needed to replace your own windows, we recommend hiring a professional installer. The window installation process is complicated and can take anywhere from four to six hours for a single window. Although it's tempting to try to do it yourself to save money, hiring a company is a faster, more efficient and much safer alternative.

What time of year should I replace my windows?

Replacement windows can be installed any time of the year, but warmer weather is typically better. No matter when you install them, the contractors will take steps to make sure that too much hot or cold air doesn't get into your house, so the temperature outside doesn't necessarily matter that much. What's most important is that the weather should be dry.

How often should you replace windows?

Windows usually have a lifespan of around 20 to 30 years, but anytime you see damage on your windows, it's a good time to have them looked at by an expert to determine if they need any repairs or replacements.

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