26 Best Window Replacement Companies in Lake Ronkonkoma, NY (Mar 2023)
Window Companies Near Me

Thinking about replacing your windows? We've got all the information you need in this list of the best window installation companies.

We analyzed all the top window installers in Lake Ronkonkoma and selected the top 26 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.

Although renewable energy sources like wind and solar are important when it comes to reducing your carbon footprint, improving your home's energy efficiency can also have a big impact on home energy conservation. Outdated windows could lead to spending more on energy bills during the winter or summer months.

Thankfully, saving you energy with more efficient windows also aligns with our goals of conserving energy and the resources it takes to produce it.

So if you're constructing a new home, renovating or updating your windows in Lake Ronkonkoma, this is the best place to get started.

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Award-winning company
  • Manufactures products in-house
  • No lifetime warranty

Best Affordability

Window World

★★★★★
4.5

  • Large serice area
  • EnergyStar Partner
  • Lifetime warranty
  • Quality of service will depend on your area

Best Warranty

Universal Windows Direct

★★★★★
4

  • Makes charitable contributions
  • Wide variety of products and services
  • Manufactures products in-house
  • Some installations carried out by third-party contractors

Best Window Replacement Companies in Lake Ronkonkoma

The EcoWatch team examined dozens of installers that serve the Lake Ronkonkoma area to find the best window installation companies by our standards. The providers mentioned in this article passed our review standards for energy-efficient offerings as well as customer service, local expertise, price and beyond.

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 Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty

Renewal by Andersen provides the best availability in Lake Ronkonkoma. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of industry experience, and it currently provides services to nearly every state except Mississippi and West Virginia. The company has many positive reviews from customers on online review websites.

You may want to consider choosing Andersen if you're interested in 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 Windows

Renewal 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 Lake Ronkonkoma?

Pricing details are not available on Andersen's website because the cost of window installment 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. You can inquire about a free quote on its website for more information about the cost.

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

Window World

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

Window World offers windows expertise in Lake Ronkonkoma. This provider has 27 years of experience in the windows business, and it has proved to be one of the best companies in Lake Ronkonkoma. The company has many glowing reviews from customers on online review websites.

It is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.

Energy Efficiency of Window World Windows

Window World 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 make sure to ask your Window World representative when inquiring about services.

How much does Window World cost in Lake Ronkonkoma?

Window World doesn't have any cost information listed on its website, but it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to know for sure.

Universal Windows Direct logo
FAST QUOTE
as little as 30 seconds
Best Warranty

Universal Windows Direct

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 2002
Pros:
  • Pros icon Makes charitable contributions
  • Pros icon Wide variety of products and services
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon Some installations carried out by third-party contractors

Universal Windows Direct is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has around 20 years of experience in the window installation business.

If you're looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, this may be the perfect provider for you.

Energy Efficiency of Universal Windows Direct Windows

There are a wide range of window types that Universal Windows Direct offers, some of which are Energy Star products. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.

How much does Universal Windows Direct cost in Lake Ronkonkoma?

Prices aren't available on Universal's website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. You can ask for a free quote on its website for more information about the cost.

We try to stay unbiased and transparent by listing pros and cons for each company we review. Additionally, our rankings are not affected by any partnerships.

More Window Replacement Companies in Lake Ronkonkoma

Sky Windows and Doors

Freeport, NY
4.7
★★★★★
  • Pros icon Helps Educate Customers
  • Pros icon Reliable Service
  • Pros icon Free Quotes
  • Pros icon Price Transparency

Services Offered

  • Service icon Residential Windows
  • Service icon Architectural Glass
  • Service icon Energy-Efficient Options
  • Service icon Doors
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://www.skywindowsnj.com/
Address: 145 N Main St, Freeport, NY 11520
Phone: (516) 686-8485

Renewal by Andersen of Long Island

Farmingdale, NY
4.6
★★★★★
  • Pros icon Award-Winning
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon No-fee Quotes

Services Offered

  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Stained Glass
  • Service icon Sliding Glass
  • Service icon Bay & Bow Windows

Website: https://www.renewalbyandersen.com/window-company/800-long-island-ny/retailer
Address: 2029 New Hwy, Farmingdale, NY 11735
Phone: (631) 843-1713

Renewal by Andersen - Branford

Branford, CT
4.6
★★★★★
  • Pros icon Consistent Workmanship
  • Pros icon Locally Recognized for Quality
  • Pros icon Good Customer Service
  • Pros icon Free Quotes

Services Offered

  • Service icon Residential Windows
  • Service icon Custom Windows
  • 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 Arrives on Time
  • Pros icon Price Transparency
  • Pros icon Reliable Service
  • Pros icon Free Quotes

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

Renewal by Andersen

Stamford, CT
4.3
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Reliable Appointment Windows
  • Pros icon Dependable Service
  • Pros icon Price Transparency

Services Offered

  • 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: https://www.renewalbyandersen.com/window-company/710-westchester/retailer
Address: 2041 W Main St, Stamford, CT 06902
Phone: (203) 406-0545

Pella Windows & Doors of Roslyn Heights

Roslyn Heights, NY
4.2
★★★★★
  • Pros icon Dependable Service
  • Pros icon Educational Website
  • Pros icon No-Hassle Pricing
  • Pros icon Award-Winning

Services Offered

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

Website: https://www.pellabranch.com/long-island/showrooms/roslyn-heights/
Address: 79 Powerhouse Rd, Roslyn Heights, NY 11577
Phone: (516) 938-7655

Storefront Glass & Metal

Huntington Station, NY
4.2
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Timely Service

Services Offered

  • Service icon Architectural Glass
  • Service icon Heavy Glass
  • Service icon Custom Window Designs
  • Service icon Aluminum Window Frames
  • Service icon Business Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: https://www.storefrontglassandmetal.com/
Address: 505 E Jericho Turnpike, Huntington Station, NY 11746
Phone: (516) 522-1203

Mr. Handyman of Upper Fairfield County

Fairfield, CT
4.1
★★★★★
  • Pros icon Locally Recognized for Quality
  • Pros icon Reliable Service
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers

Services Offered

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

Website: https://www.mrhandyman.com/upper-fairfield-county/
Address: 2480 Black Rock Turnpike, Fairfield, CT 06825
Phone: (866) 550-1710

The Window People

Stamford, CT
4.1
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Free Quotes
  • Pros icon Helps Educate Customers
  • Pros icon Excellent Customer Service

Services Offered

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

Website: http://www.thewindowpeople.net/
Address: 42 Magee Ave, Stamford, CT 06902
Phone: (203) 323-1804

Eastern Glass & Shower Door

Milford, CT
4.0
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Free Quotes

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

Window Depot Usa Of Lower NY

South Hempstead, NY
3.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Consistent Workmanship
  • Pros icon Award-Winning
  • Pros icon Reliable Appointment Windows

Services Offered

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

Website: http://windowdepotlowerny.com/
Address: 1096 Grand Ave, South Hempstead, NY 11550
Phone: (516) 564-4400

Sears Window Replacement

New Rochelle, NY
3.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Reliable Appointment Windows
  • Pros icon Free Quotes
  • Pros icon Consistent Workmanship

Services Offered

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

Website: https://www.searshomeservices.com/locations/hi/window-replacement/ny/newrochelle
Address: 5 Plain Ave, New Rochelle, NY 10801
Phone: (914) 243-1427

Tri State Window Factory

Deer Park, NY
3.9
★★★★★
  • Pros icon Price Transparency
  • Pros icon Award-Winning
  • Pros icon No-fee Quotes
  • Pros icon Consistent Workmanship

Services Offered

  • Service icon Custom Windows
  • Service icon Fast Delivery
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: http://www.tristatewindowfactory.com/
Address: 360 Marcus Blvd, Deer Park, NY 11729
Phone: (631) 667-8600

Mr. Handyman of Guilford, North and East Haven

East Haven, CT
3.9
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Award-Winning
  • Pros icon Excellent Customer Service
  • Pros icon Consistent Workmanship

Services Offered

  • Service icon Custom Window Designs
  • 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

Tri State Window Factory

Seaford, NY
3.9
★★★★★
  • Pros icon Reliable Service
  • Pros icon Price Transparency
  • Pros icon No-fee Quotes
  • Pros icon Award-Winning

Services Offered

  • Service icon Custom Windows
  • Service icon Fast Delivery
  • Service icon Sliding Glass
  • Service icon Double-Hung

Website: http://www.tristatewindowfactory.com/
Address: 3657 Merrick Rd, Seaford, NY 11783
Phone: (800) 645-4568

Window World of Long Island

Farmingdale, NY
3.8
★★★★★
  • Pros icon No-Hassle Pricing
  • Pros icon Good Customer Service
  • Pros icon Dependable Service
  • Pros icon Free Quotes

Services Offered

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

Website: http://www.windowworldlongisland.com/
Address: 33 Hempstead Turnpike, Farmingdale, NY 11735
Phone: (516) 377-3500

Long Island Storefronts

Shirley, NY
3.8
★★★★★
  • Pros icon Award-Winning
  • Pros icon No-fee Quotes
  • Pros icon Excellent Customer Service
  • Pros icon Consistent Workmanship

Services Offered

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

Website: https://www.longislandglassandstorefronts.com/
Address: 60 Northern Blvd Ste #2, Shirley, NY 11967
Phone: (631) 803-8346

Lowe's Home Improvement

Riverhead, NY
3.8
★★★★★
  • Pros icon Free Quotes
  • Pros icon Consistent Workmanship
  • Pros icon Good Customer Service
  • Pros icon Reliable Appointment Windows

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

Window King of Connecticut

Stamford, CT
3.7
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Educational Website
  • Pros icon Price Transparency
  • Pros icon Excellent Customer Service

Services Offered

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

Website: http://windowking.biz/
Address: Stamford, CT
Phone: (203) 717-4910

Cascella And Sons Construction Corp.

Central Islip, NY
3.7
★★★★★
  • Pros icon Free Quotes
  • Pros icon Educational Website
  • Pros icon Charitable Giving
  • Pros icon Price Transparency

Services Offered

  • Service icon Custom Windows
  • Service icon Business Windows
  • Service icon Double-Hung

Website: https://www.cascellaandsons.com/
Address: 70 Carleton Ave, Central Islip, NY 11722
Phone: (631) 582-0100

THE GLASS EMPORIUM INC.

Kings Park, NY
3.6
★★★★★
  • Pros icon Free Quotes
  • Pros icon No-Hassle Pricing
  • Pros icon Arrives on Time
  • Pros icon Excellent Customer Service

Services Offered

  • Service icon Residential Windows
  • Service icon Heavy Glass
  • Service icon Tempered Glass
  • Service icon Custom Window Designs
  • Service icon Commercial Windows
  • Service icon Double-Hung
  • Service icon Sliding Glass

Website: http://glassemporium.biz/
Address: 132 Pulaski Rd, Kings Park, NY 11754
Phone: (631) 544-4284

Ring's End

South Salem, NY
3.6
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Excellent Customer Service
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers

Services Offered

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

Website: https://www.google.com/aclk
Address: South Salem, NY
Phone: (914) 533-2517

Mike the Glazier Inc

Mineola, NY
3.6
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free Quotes
  • Pros icon Arrives on Time
  • Pros icon No-Hassle Pricing

Services Offered

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

Website: http://www.miketheglazier.com/
Address: 133 E Jericho Turnpike, Mineola, NY 11501
Phone: (516) 248-1900

Mikita Door & Window

Freeport, NY
3.6
★★★★★
  • Pros icon Reliable Appointment Windows
  • Pros icon Price Transparency
  • Pros icon Helps Educate Customers
  • Pros icon Good Customer Service

Services Offered

  • Service icon Custom Window Designs
  • Service icon Sliding Glass
  • Service icon Double-Hung
  • Service icon Bay & Bow Windows

Website: https://mikitadoorandwindow.com/
Address: 136 W Sunrise Hwy, Freeport, NY 11520
Phone: (516) 867-4100

Sears Window Replacement

East Northport, NY
3.6
★★★★★
  • Pros icon No-fee Quotes
  • Pros icon Locally Recognized for Quality
  • Pros icon Price Transparency
  • Pros icon Educational Website

Services Offered

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

Website: https://www.searshomeservices.com/locations/hi/window-replacement/ny/east-northport
Address: 4000 Jericho Turnpike, East Northport, NY 11731
Phone: (631) 606-2190

Competition Glass

Port Washington, NY
3.4
★★★★★
  • Pros icon Price Transparency
  • Pros icon Excellent Customer Service
  • Pros icon Consistent Workmanship
  • Pros icon Free Quotes

Services Offered

  • Service icon Fast Delivery
  • Service icon Custom Window Designs
  • Service icon Full-Service Installations
  • Service icon Business Windows
  • Service icon Sliding Glass

Website: http://www.competitionglassny.com/
Address: 439 Main St, Port Washington, NY 11050
Phone: (516) 883-3200

How Installing Energy-Efficient Windows in Lake Ronkonkoma Saves You Money

By upgrading to energy-efficient windows, you and your family can benefit in several ways, including:

  • Save money on energy bills: The Department of Energy estimates that heat gained or lost via windows accounts for around 25-30% of household energy use. Upgrading to energy-efficient windows can help lower that number, which helps you save some money on your bills.
  • Protect your valuables from fading: The low-emissivity coatings on some energy-efficient windows filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
  • Protect your investment: If your home is on the older side, your windows are most likely in need of replacement. Updating your windows can make your home more comfortable and also help increase the value of your house if you decide to sell.
  • Decrease your carbon footprint: By using less energy after you upgrade to energy-efficient windows, you'll also be cutting your carbon dioxide emissions by about 12%, according to Energy Star.

Estimated Cost of Window Replacement in Lake Ronkonkoma

When considering window installation, each company offers different services and prices. Let's look at some average costs and services.

How Much Do New Windows Cost?

On average, homeowners in Lake Ronkonkoma can expect that most window installations will cost between $250 and $1,200, with the most common installations sitting at around $600. These numbers vary depending on the specifics of your installation, including type, number of windows, size, material, the location of your home and more.

With windows, efficiency is one of the most important factors for most homeowners. High efficiency windows may cost more off the bat, 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, purchasing certified energy-efficient windows can save Lake Ronkonkoma homeowners $215+ per year after replacing single-pane windows.

The cost of your window installation will also vary depending on the kind of window material you choose for the frames. Wood windows are usually the most expensive, but it depends if they are 100% wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are shown to be more efficient.

What Services do Window Installers Offer?

In general, there are two types of window replacement services companies offer: full-frame and pocket installations.

A full-frame installation is a replacement of the total window. It involves removing the old window, the sill, and the exterior and interior trim. It can also involve additional materials, such as insulation and drip edges, which increase the overall cost of the project. Also worth noting: you may have to touch up the paint surrounding the window after a full-frame installation. Pocket installations (or retrofits) entail replacing a window within its existing frame, which makes pocket installations less labor-intensive and costly. But, if the frame has any rot or deterioration, you will most likely need a full-frame installation instead.

Your window installer should be able to help you choose which type of installation you should get.

Best Overall

Renewal by Andersen

★★★★★
4.5

  • Great industry reputation
  • Award-winning company
  • Manufactures products in-house
  • No lifetime warranty

Best Affordability

Window World

★★★★★
4.5

  • Large serice area
  • EnergyStar Partner
  • Lifetime warranty
  • Quality of service will depend on your area

Best Warranty

Universal Windows Direct

★★★★★
4

  • Makes charitable contributions
  • Wide variety of products and services
  • Manufactures products in-house
  • Some installations carried out by third-party contractors

How We Choose the Best Window Installers in Lake Ronkonkoma

In our search to find the most reliable, eco-friendly window installers in Lake Ronkonkoma, the EcoWatch team examined many companies before deciding on these. We have reviewed the best window installation companies in Lake Ronkonkoma mostly based on energy efficiency, as it's what's best for the environment and for you as a homeowner. Energy Star certified windows can lower energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:

Service Area

Because this is a guide for Lake Ronkonkoma, we gave more points to companies that provide services to the city. There are certainly other reputable providers that didn't make the cut because of the low odds that they would serve the average homeowner in Lake Ronkonkoma.

Work Quality

We're willing to bet that you're not looking for a company to do a shoddy job installing windows. We've vetted each installer in our guide to make sure 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 very important review factor. If the majority of 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 would like to keep costs as low as possible. When analyzing the prices of providers, we awarded higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.

Warranty

Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies that have lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Last but not least, we like to see companies that have a proven track record in the industry. Window installers that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.

Lake Ronkonkoma, NY Window Replacement FAQs

How much should window installation cost?

The average cost of installing a window can range from $450 to $650. There are a variety of factors that influence the price, including local labor costs, styles and sizes of windows, how energy-efficient the windows are, your property's location, the materials used in designing the windows and the number of windows.

What kind of window is the best for energy efficiency?

A window's energy efficiency is influenced by several factors, such as the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are usually the most energy-efficient and are certified by the U.S. Department of Energy.

What services do window replacement companies do?

Window installers will do 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?

Although you can install windows any time of year, warmer weather is typically better for installing replacement windows. Additionally, the weather should be dry, because rain can make the installation harder.

Should I replace all my windows at the same time?

If your windows are greater than 20 years old, you most likely need to replace all of them. By that point, they are usually less efficient, leakier and/or more damaged than new windows. Replacing your windows all at the same time will involve less paperwork and less time.

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