20 Best Window Companies in Southold, NY (2025 Reviews)
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-rated window companies in Southold and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
The EcoWatch Reviews team is all about helping Southold homeowners find eco-conscious solutions for their homes. If your windows are outdated or drafty, you could be losing 25-30% of your home’s heat or cool air right out of them.
Installing new, efficient windows on your house can help you save money each month on your electric bills — and you can help the environment, too.
So if you’re constructing a new home, renovating or changing out old windows in Southold, this is the best place to get started.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
Best Window Installation & Replacement Companies in Southold
The EcoWatch Reviews team examined dozens of installers in Southold to find the best window companies for our readers. The providers in this article scored best in our review categories, which include energy-efficient offerings, customer service, price, availability, local expertise and more.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World is the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has around 27 years of experience in the window installation industry. The provider has many glowing reviews from customers on online review websites.
You may want to consider choosing Window World if you're looking for 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 WindowsWindow World appeals to eco-conscious consumers by providing energy-efficient window offerings. 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 Southold?Though pricing is not readily available on Window World’s website, it's known for offering some of the most affordable window installations around. You can ask for a free quote on its website for more information about the cost.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window installation industry. The provider has many glowing reviews from customers on online review websites.
You may want to consider choosing 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 appeals to eco-conscious consumers by providing energy-efficient window offerings. 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 Southold?Though pricing is not readily available on Andersen’s website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. You can ask for a free quote on its website for more information about the cost.
We aim to stay unbiased and transparent by including pros and cons for each company. Additionally, any partnerships do not affect our reviews.
More Window Companies in Southold
Renewal by Andersen - Branford
Branford, CTEducational Website
Good Customer Service
Price Transparency
Free assessment
Services Offered
Bay Windows
Glass Doors
Skylights
Window Replacement/Installation
Double-Hung
Power Home Remodeling
Trumbull, CTFree assessment
Price Transparency
Timely Service
Good Customer Service
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Window Nation
Wallingford, CTPrice Transparency
Free assessment
Educational Website
Services Offered
Bay Windows
Energy-Efficient Options
Window Replacement/Installation
Custom Window Designs
Double-Hung
Glass Doors
Calvary Remodeling
Mystic, CTPrice Transparency
Free assessment
Good Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Bert Falsetti's Home Improvement LLC
Shelton, CTServices Offered
Vinyl Frames
Energy-Efficient Options
Window Replacement/Installation
Double-Hung
Paramount Gallery
West Hartford, CTEducational Website
Free assessment
Good Customer Service
Price Transparency
Services Offered
Energy-Efficient Options
Custom Window Designs
Window Replacement/Installation
Glass Doors
Flawless Glass & Mirror LLC
Holbrook, NYEducational Website
Free assessment
Good Customer Service
Owner-operated small business
Price Transparency
Free in-home consultation
Customized glass options
Services Offered
Window Replacement/Installation
Mirrors
Glass Showers
Window Depot USA of Southern CT
Trumbull, CTGood Customer Service
Price Transparency
Free assessment
Educational Website
Timely Service
Services Offered
Bay Windows
Energy-Efficient Options
Vinyl Frames
Window Replacement/Installation
Glass Doors
Double-Hung
Triple Pane Glass
Big Dawg Home Improvements
South Windsor, CTPrice Transparency
Free assessment
Timely Service
Good Customer Service
Services Offered
Skylights
Window Replacement/Installation
Window Repair
Energy-Efficient Options
ZN Construction
Canton, CTFree assessment
Good Customer Service
Price Transparency
Timely Service
Educational Website
Services Offered
Window Replacement/Installation
Energy-Efficient Options
United Home Experts
Norwalk, CTPrice Transparency
Good Customer Service
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Fiberglass Frames
Budget Blinds of Enfield and Hartford
Somers, CTFree assessment
Educational Website
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Custom Window Designs
Bencar Building Systems LLC
Wallingford, CTGood Customer Service
Services Offered
Window Replacement/Installation
Advanced Window Systems LLC
Cromwell, CTPrice Transparency
Free assessment
Good Customer Service
Educational Website
Services Offered
Window Replacement/Installation
Double-Hung
Glass Doors
Glass Showers
Bay Windows
Nu-Face Home Improvements
Berlin, CTEducational Website
Timely Service
Free assessment
Price Transparency
Good Customer Service
Services Offered
Glass Showers
Glass Doors
Window Replacement/Installation
Energy-Efficient Options
Double-Hung
Smithtown Window Replacement and Doors
Smithtown, NYGood Customer Service
Free assessment
Weekend availability
Price Transparency
Educational Website
Family-owned and operated
Energy-efficient windows and doors
Services Offered
Vinyl Frames
Fiberglass Frames
Tempered Glass
Wood Frames
Triple Pane Glass
Glass Doors
Window Repair
Storm/Impact Windows
Glass Showers
Energy-Efficient Options
Custom Window Designs
Window Replacement/Installation
Metal Frames
Bay Windows
Double-Hung
Mr. Handyman of Huntington and Smithtown
East Northport, NYEducational Website
Price Transparency
Free assessment
Timely Service
Good Customer Service
Services Offered
Window Repair
Window Replacement/Installation
Bay Windows
Homestead Window Treatments
Huntington Station, NYOnline appointment scheduling
Educational Website
Price Transparency
Saturday availability
Good Customer Service
Family-owned and operated
Free assessment
Services Offered
Window Replacement/Installation
Custom Window Designs
Venture Window LLC
Cranston, RIFree assessment
Services Offered
Vinyl Frames
Window Replacement/Installation
Custom Window Designs
Glass Doors
Double-Hung
Skylights
Turner Home Improvement Contractors, LLC
Glastonbury, CTEducational Website
Free assessment
Good Customer Service
Price Transparency
Timely Service
Services Offered
Glass Doors
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in Southold, NY using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Southold Saves You Money
There are several perks of upgrading to energy-efficient windows. Some reasons you may want to consider making the switch are the following:
- Reduce your carbon footprint: Because energy-efficient windows improve the insulation in your home, you can lower your carbon footprint by about 12%, according to Energy Star.
- Protect your valuables from fading: The low-emissivity coatings on many energy-efficient windows filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
- Save on energy bills: Upgrading to energy-efficient windows lowers your energy bills by about 12% because you use less energy.
- Protect your investment: If your home is on the older side, your windows are most likely outdated. Upgrading your windows can improve the insulation in your home and also help raise the value of your home if you decide to sell.
Estimated Cost of Window Replacement in Southold
Windows come in various shapes and sizes, so costs and services will vary tremendously. Here are the typical costs and the primary services that you can find from window installation companies.
How Much Do New Windows Cost?
According to our market research, the average cost of replacing a single window is about $600. However, window replacement costs can range from $200 to $1,200 for each window. But costs differ remarkably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also provide door replacements, which have a higher price tag.
With windows, efficiency is the most important factor for most homeowners. Windows with higher efficiency may cost more upfront, but by increasing the efficiency of your home — especially during the summer and winter — they can provide many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Southold homeowners $215+ per year after replacing single-pane windows.
Asking for free quotes from several companies is the best way to find out which one will work best for your budget.
What Services do Window Installers Offer?
Generally, there are two types of window installation services you can get: full-frame and pocket installations.
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 considerable deterioration. These installations are more involved and will increase the overall cost. Pocket installations are simpler and won’t carry as large a bill because they entail merely replacing the window within its existing frame. But if the frame has any damage, you should opt for a full-frame installation instead.
Your window installation company can recommend the best type for your project. In Southold, the choice will mostly depend on how much damage there is currently and the age and condition of your existing frames.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
How We Choose the Best Window Installers in Southold
In our hunt to make your home improvements easier and more eco-friendly in Southold, EcoWatch assessed dozens of companies before settling on these. Along with energy efficiency, we assessed each installer and assigned rankings using the following methodology:
Service Area
Since this is a guide for Southold, we paid more attention to companies that cover the city. There are certainly other reputable providers that didn’t make the cut because they wouldn’t be able to serve homeowners in Southold.
Work Quality
We’re willing to bet that you’re looking for a company to do a great job installing windows. We’ve vetted each company included on this list to ensure its technicians are well-qualified and that the company has gotten plenty of positive customer feedback to vouch for its service.
Customer Reviews
Customer feedback is another super important review factor. If most customers don’t have positive feedback about their service from a certain window installation company, it won’t be featured on EcoWatch.
Cost
Cheaper windows don’t necessarily mean better windows, but we know many of our readers want to keep costs as low as possible. When analyzing providers’ prices, we gave higher scores to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
As discussed previously, windows are a hefty investment, so you’ll want to be certain that investment is well protected. Window installation companies that give you 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 quite some time. Window installation companies that have more experience will earn higher rankings by our standards. We like to see at least ten years of experience.
Southold, NY Window Replacement FAQs
How much does window installation cost?
The typical cost to replace one window can range from $450 to $650. There are a variety of factors that influence how much it costs, which include local labor costs, the materials used in designing the windows, how energy-efficient the windows are, styles and sizes of windows, your property’s location and the number of windows.
What are the most common types of replacement windows?
The most common kinds of windows for homes are picture windows, casement windows, double-hung and single-hung windows, slider windows, bay windows, transom windows and awning windows.
Do you really have to use a window installation company?
Unless you have experience with home improvement projects and have the time to replace your own windows, we recommend hiring a professional. The window installation process is quite involved 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 professional is a faster, more efficient and much safer option.
Should I replace my windows all at the same time?
If you’re upgrading your windows to save on your energy bills, replacing all the windows at the same time is the only way to see a noticeable difference. On the other hand, if you have only one or two windows that are broken or leaky, you can replace just those.