20 Best Window Companies in Mount Sinai, NY (2024 Reviews)
When you need to upgrade your windows, our reviews of the best window installation companies can help you find the provider for you.
We analyzed all the top-rated window companies in Mount Sinai 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 team is all about helping Mount Sinai homeowners make their homes more eco-friendly. If your windows are made of traditional materials, or are outdated or damaged, you could be losing 25-30% of your home’s heat or cool air out of them.
Installing efficient windows on your house can help you save money each month on your power bills — and you can help the environment, too.
Unlike other sites, EcoWatch ranks window replacement companies on energy efficiency while also considering cost, customer satisfaction and service area.
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 Mount Sinai
The EcoWatch Reviews team researched dozens of companies that service the Mount Sinai area to find the top window installation companies by our standards. The providers in this article scored best in our review categories, such as energy-efficient offerings, availability, customer service, local expertise, price 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 been in the window installation industry for about 27 years.
You may want to consider going with Window World if you're looking for 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 WindowsThere are a wide variety of window types that Window World offers, some of which are Energy Star products. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Mount Sinai?Window World does not detail prices on its website, but it's known for offering some of the most affordable window installations around. You can inquire about 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 been in the window installation industry for about 27 years.
You may want to consider going with Andersen if you're looking for a installer 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 WindowsThere are a wide variety of window types that Renewal by Andersen offers, some of which are Energy Star products. 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 Mount Sinai?Andersen does not detail prices 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. You can inquire about a free quote on its website for more information about the cost.
Please note that the following companies are national, meaning the quality of customer service may vary depending on your local crew. We have tried to stay unbiased and transparent by mentioning pros and cons for each company.
More Window Companies in Mount Sinai
Renewal by Andersen of Long Island
Farmingdale, NYGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Glass Doors
Bay Windows
Window Replacement/Installation
Double-Hung
Skylights
Power Home Remodeling
Trumbull, CTTimely Service
Good Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Window Nation
Wallingford, CTEducational Website
Free assessment
Price Transparency
Services Offered
Double-Hung
Energy-Efficient Options
Glass Doors
Custom Window Designs
Window Replacement/Installation
Bay Windows
Flawless Glass & Mirror LLC
Holbrook, NYFree assessment
Free in-home consultation
Price Transparency
Owner-operated small business
Educational Website
Customized glass options
Good Customer Service
Services Offered
Mirrors
Window Replacement/Installation
Glass Showers
United Home Experts
Norwalk, CTEducational Website
Good Customer Service
Free assessment
Price Transparency
Services Offered
Fiberglass Frames
Window Replacement/Installation
Window Depot USA of Southern CT
Trumbull, CTPrice Transparency
Timely Service
Good Customer Service
Educational Website
Free assessment
Services Offered
Glass Doors
Double-Hung
Vinyl Frames
Bay Windows
Triple Pane Glass
Energy-Efficient Options
Window Replacement/Installation
Bert Falsetti's Home Improvement LLC
Shelton, CTServices Offered
Double-Hung
Energy-Efficient Options
Vinyl Frames
Window Replacement/Installation
Greenwich Windows Replacement
Greenwich, CTFree assessment
Educational Website
Price Transparency
Good Customer Service
Services Offered
Bay Windows
Double-Hung
Window Replacement/Installation
Doors & Windows
Albertson, NYPrice Transparency
Online product shopping
Educational Website
Sunday availability
Good Customer Service
Free assessment
Free in-home or virtual consultation
Services Offered
Wood Frames
Bay Windows
Vinyl Frames
Window Replacement/Installation
Double-Hung
Parco Home Improvement Corp.
Franklin Square, NYFree assessment
Price Transparency
Services Offered
Energy-Efficient Options
Vinyl Frames
Window Replacement/Installation
Edge Remodeling, Inc.
Franklin Square, NYLabor warranties available
Free same-day estimates
Family-owned and operated
Good Customer Service
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
M & R Windows
Bronx, NYTimely Service
Price Transparency
Services Offered
Window Replacement/Installation
Cityproof Soundproof Windows
Long Island City, NYFree assessment
Good Customer Service
Timely Service
Educational Website
Trademark soundproof Citiwindows
Over 50,000 installations completed
Price Transparency
No-construction services available
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Custom Window Designs
Aspen Home Remodeling, LLC.
Oradell, NJPrice Transparency
Educational Website
Good Customer Service
Free assessment
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Skylights
HDL Construction LLC — Windows replacement, Roofing, Roof service, Siding replacement, Chimney, Deck, Masonry
Hasbrouck Heights, NJSaturday and Sunday availability
Good Customer Service
Free assessment
24-hour emergency service
Price Transparency
Educational Website
Free in-home consultation
Services Offered
Window Replacement/Installation
Smithtown Window Replacement and Doors
Smithtown, NYPrice Transparency
Educational Website
Weekend availability
Free assessment
Family-owned and operated
Good Customer Service
Energy-efficient windows and doors
Services Offered
Storm/Impact Windows
Glass Doors
Triple Pane Glass
Bay Windows
Glass Showers
Metal Frames
Energy-Efficient Options
Double-Hung
Window Replacement/Installation
Wood Frames
Window Repair
Tempered Glass
Custom Window Designs
Fiberglass Frames
Vinyl Frames
Mr. Handyman of Huntington and Smithtown
East Northport, NYFree assessment
Timely Service
Price Transparency
Good Customer Service
Educational Website
Services Offered
Bay Windows
Window Replacement/Installation
Window Repair
Homestead Window Treatments
Huntington Station, NYPrice Transparency
Good Customer Service
Saturday availability
Online appointment scheduling
Educational Website
Family-owned and operated
Free assessment
Services Offered
Custom Window Designs
Window Replacement/Installation
MK Window Treatments
Greenwich, CTGood Customer Service
Free assessment
Services Offered
Window Replacement/Installation
Life Restoration Inc
Roosevelt, NYGood Customer Service
Saturday availability
Educational Website
Price Transparency
Transparent and upfront pricing
Free in-home consultation
Free assessment
Services Offered
Window Repair
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in Mount Sinai, 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 Mount Sinai Saves You Money
Energy-efficient windows can benefit you in more than one way. Here are some reasons you may want to think about making the switch:
- Decrease your carbon footprint: You can reduce your carbon footprint by about 12% when you install Energy Star certified windows. In Mount Sinai, that’s about 307 pounds per year on average.
- Protect your investment: If your home is on the older side, your windows are most likely outdated. Updating your windows can improve the insulation in your home and also help raise the value of your property if you decide to sell.
- Protect your valuables from fading: The low-emissivity coatings on many energy-efficient windows filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
- Save on energy bills: Since energy-efficient windows lower how much energy you need to heat or cool your home, the switch can help you save around $215 annually on your energy bills in Mount Sinai.
Estimated Cost of Window Replacement in Mount Sinai
Each window installer offers various services and has different price points based on several factors.
How Much Do New Windows Cost?
Generally, homeowners in Mount Sinai can anticipate that most replacement window installations will cost between $250 and $1,200, with the most common installations sitting at around $600. But costs differ considerably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also offer door replacements, which will add extra costs to your project.
With windows, efficiency is the most important factor for most homeowners. High efficiency windows may cost more upfront, but by increasing the efficiency of your home — especially during the summer and winter — they can provide decades of energy savings. According to Energy Star, buying certified energy-efficient windows can save Mount Sinai homeowners $215+ each year after replacing single-pane windows.
We advise requesting free quotes from several window installers to find the one that works best for you.
What Services do Window Installers Offer?
There are generally two types of window installation services: full-frame and pocket installations.
A full-frame installation replaces the entire window, including the sill, frame, trim and the window panes. Because this type of installation requires more time, it will cost more than a pocket installation. A pocket installation means replacing a window within the existing frame, which tends to be cheaper than a full-frame installation.
If you’re not sure which window installation service you should get, your installer can advise you. Typically, the choice is influenced by factors like the age and condition of the home, the type of building material, budget and time restrictions.
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 Mount Sinai
EcoWatch reviews differ from most reviews, as we evaluate these companies through a sustainability lens. Along with energy efficiency, we analyzed window companies all across the state and assigned rankings using the following methodology:
Service Area
This one is self-explanatory, but we’ve chosen to highlight window installation companies that serve a wide variety of states and cities so you can find a quality window installation company near you.
Work Quality
When it comes to new windows, the quality and variety 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
We analyzed patterns in recent online reviews to find the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction may be the factor we place the most value on, as it indicates the quality of services across most other categories, including warranty, cost, quality of installation, quality of parts, professionalism and more.
Cost
This one is a give-and-take: as with most services, cheap window installation companies may not provide the most quality service. Still, we want to make sure we’re highlighting companies that provide a wide range of price and financing options so they’re accessible to most homeowners.
Warranty
Protecting your investment in new windows is important. For that reason, window installation companies with lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Because of Mount Sinai’s climate, homeowners will want to mitigate water damage, rot and low efficiency. We factored in local experience to reflect the ability of Mount Sinai window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Mount Sinai, NY Window Replacement FAQs
How much does a window install cost?
The typical cost of installing a window can range between $450 and $650. There are a variety of factors that affect the cost, such as your property’s location, styles and sizes of windows, the materials used in designing the windows, how energy-efficient the windows are, local labor costs and the number of windows.
What kind of window is the best for energy efficiency?
A window’s energy efficiency is influenced by a number of factors, including the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are typically the most energy-efficient since they are certified by the U.S. Department of Energy.
Can I replace my own windows?
While it is possible to install your own windows, doing so requires a lot of time and handiness. Hiring a professional can help ensure that the job is done properly and that you can avoid spending the time and effort of doing it yourself.
Should I replace all my windows at the same time?
If you want to get more efficient windows and save money on energy costs, replacing all the windows at the same time is the only way to gain that benefit. On the other hand, if you have just a few windows that are broken or leaky, you can replace just those.
How long does window installation generally take?
Each window takes about 30 minutes to install based on the type of window. However, the window installation can be a two-day job — or more — if you need to have a lot of windows installed.