Expert Advice On Improving Your Home

10 Best Window Replacement Companies in East Islip, NY

Join more than 640 people who have gotten a free quote in the past week.

Written By David Cusick

Last Updated April 2024

Whether you want to increase your home's value or decrease your energy bills, upgrading your windows is a great idea. In East Islip, you could save about $215 per year on your electricity bills after upgrading your windows. Drafty windows can reduce your home’s energy efficiency by up to 30%, according to the Department of Energy. If you can't decide between window installers, this is the best place to get started. Keep reading to find the best window installers in East Islip.

Our Recommended Providers

Top Pick
4.9/5
  • Great quality
  • Free assesment
  • Timely Service
Most Customizable
4.0/5
  • Holds high customer ratings
  • Offers energy-efficient products
  • Provides a lifetime labor warranty
Best Window Selection
4.3/5
  • Transparent pricing
  • Award-winning company
  • Free assessment

Top 10 Best Window Replacement Companies in East Islip

Renewal by Andersen of Long Island

Renewal by Andersen of Long Island Logo

Our Rating

User Rating

Write a Review
2029 New Hwy, Farmingdale, NY 11735 (631) 843-1713 renewalbyandersen.com

Free assessment

Price transparency

Good customer service

Educational website

Services Offered

Window replacement/installation
Bay windows
Glass doors
Double-hung
Skylights

Window World of Long Island

Window World of Long Island Logo

Our Rating

User Rating

Write a Review
33 Hempstead Tpke, Farmingdale, NY 11735 (516) 377-3500 windowworldlongisland.com

Timely service

Educational website

Free assessment

Good customer service

Price transparency

Services Offered

Double-hung
Energy-efficient options
Bay windows
Window replacement/installation
Custom window designs
Glass doors

Smithtown Window Replacement and Doors

Smithtown Window Replacement and Doors Logo

Our Rating

User Rating

Write a Review
43 Landing Ave, Smithtown, NY 11787 (631) 646-2386 smithtownwindowsdoors.com

Free assessment

Educational website

Price transparency

Good customer service

Services Offered

Glass showers
Glass doors
Wood frames
Storm/impact windows
Vinyl frames
Metal frames
Window replacement/installation
Triple pane glass
Bay windows
Custom window designs
Window repair
Energy-efficient options
Fiberglass frames
Tempered glass
Double-hung

Home Services at The Home Depot

Home Services at The Home Depot Logo

Our Rating

User Rating

Write a Review
475 Commack Rd, Deer Park, NY 11729 (631) 315-2297 homedepot.com

Educational website

Free assessment

Price transparency

Good customer service

Services Offered

Vinyl frames
Skylights
Glass showers
Energy-efficient options
Custom window designs
Screen repair
Glass doors
Window replacement/installation
Storm/impact windows

Pro Quality Home Improvements Inc.

Pro Quality Home Improvements Inc. Logo

Our Rating

User Rating

Write a Review
1120 Little East Neck Road, West Babylon, NY 11704 (631) 393-6812 proqualityhomeimprovements.com

Free assessment

Timely service

Educational website

Good customer service

Price transparency

Services Offered

Energy-efficient options
Window repair
Bay windows
Glass doors
Window replacement/installation
Skylights

Sears Window Replacement

Sears Window Replacement Logo

Our Rating

User Rating

Write a Review
4000 Jericho Turnpike, East Northport, NY 11731 (934) 947-2538 searshomeservices.com

Good customer service

Educational website

Timely service

Price transparency

Free assessment

Services Offered

Double-hung
Bay windows
Window replacement/installation
Vinyl frames
Energy-efficient options
Storm/impact windows
Glass doors

EcoView Windows of Long Island

EcoView Windows of Long Island Logo

Our Rating

User Rating

Write a Review
54 Enter Ln, Islandia, NY 11749 (631) 538-4731 ecoviewwindowsli.com

Free assessment

Price transparency

Educational website

Good customer service

Services Offered

Bay windows
Window replacement/installation
Glass doors
Double-hung
Energy-efficient options

Glass Doctor

Glass Doctor Logo

Our Rating

User Rating

Write a Review
354 Smithtown Blvd, Ronkonkoma, NY 11779 (631) 619-6711 glassdoctor.com

Price transparency

Educational website

Good customer service

Services Offered

Glass doors
Energy-efficient options
Custom glass
Window replacement/installation
Window repair
Glass repair
Glass showers
Mirrors

Good Guys Contracting

Good Guys Contracting Logo

Our Rating

User Rating

Write a Review
441 Broadway, West Babylon, NY 11704 (631) 559-6420 goodguyscontracting.com

Free assessment

Educational website

Price transparency

Good customer service

Services Offered

Bay windows
Window replacement/installation
Metal frames
Energy-efficient options

Unified Home Remodeling

Unified Home Remodeling Logo

Our Rating

User Rating

Write a Review
298 Medford Ave, Patchogue, NY 11772 (631) 612-2510 unifiedhomeremodeling.com

Good customer service

Educational website

Price transparency

Timely service

Free assessment

Services Offered

Window replacement/installation
Energy-efficient options
Glass doors
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on window replacement companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How Much Does Window Installation Cost In East Islip?

Window installation and replacement costs will be influenced by a number of factors, including the materials you choose, how difficult your windows are to access or install, and the number and size of the windows. On average, East Islip homeowners spend roughly $290 per window*. Below are additional cost breakdowns. *Cost data based on sample pricing for window installation from multiple retailers and adjusted for local cost of living.

When To Replace Windows

Replacing your old windows with new energy-efficient ones can significantly improve your home's insulation, value, appearance, comfort, and noise reduction. Signs it's time to invest in new windows include:

  • Drafts and cold air leaking in through old, loose-fitting windows.
  • Outdated and inefficient window styles that take away from your house's curb appeal.
  • Windows that are hard to open, close, and lock properly due to wear and age.
  • Fogging between window panes, condensation issues, or rotting window frames that let in moisture.
  • High energy bills and a chilly house due to poor insulation around windows.

How To Choose a Window Company

For a successful window replacement, you need to locate an installer with proven expertise. Below, we cover the most important considerations when selecting a window installer.

Experience

Find well-established local installers with extensive experience. Providers that have served East Islip homeowners for years are more likely to know the local climate and how to best meet your needs. Request references from recent customers to confirm a company’s reputation.

Certifications

Choose an installer that’s accredited like leading window companies, and that has Fenestration and Glazing Industry Alliance (formerly AAMA) certification. Suitable credentials indicate they've received suitable education in installation best practices. Verify that installers are staff, not subcontracted laborers, and confirm that the technicians assigned to your job have certification.

Reputation

Read through online customer feedback, check the Better Business Bureau (BBB), and ask for local references. Review customer feedback to make sure that the company consistently provides quality work and good customer service. Avoid companies that have complaints of shoddy work or unfinished jobs.

Process

A reputable provider will give you a comprehensive project plan, detailed timeline, clear expectations, and an overview of all material and installation options. Avoid providers that offer unclear quotes or timelines. Ask for continual contact throughout the process, so you aren't caught off guard later on.

Warranties

Look into window installers that back their installations with warranties on materials and labor. This demonstrates confidence in their work. Target companies that offer unlimited lifetime warranties that can pass to new homeowners.

Materials

Make sure your window installer offers durable, long-lasting window options and top energy-saving window brands that fit your budget. Look for good energy ratings, enhanced UV protection, and design flexibility. Check that the window materials also have manufacturer warranties.

Frequently Asked Questions About Window in East Islip, NY

In East Islip, the best time to install windows is during the early fall when the temperatures are milder, so the windows can seal and settle properly. A professional local window installer in East Islip will be able to explain when the best time is to install windows on your house.

The best type of replacement window for your East Islip home will depend on your home's age, as well as your style preference and budget. You'll want to consider the style of your home — such as if it's old — so your new windows match. Wood windows can give a traditional look and feel, while vinyl windows are more popular in newer homes. Fiberglass-framed windows are also a popular choice, as they are energy efficient and durable.

Windows made from vinyl, wood, or fiberglass tend to last the longest, with some lasting more than 45 years. Vinyl windows are particularly durable and low-maintenance, making them an excellent choice if you want windows that will last a long time. Adding more glazing can help reduce your heating and cooling bills in the long run.

The window installation process typically involves measuring and ordering the windows, preparing the area for installation, removing the existing window, installing the new one, and insulating the frame. Depending on the type of window being put in, additional steps may be required.

Replacing your own windows can be a difficult task, especially in East Islip, where temperatures can get quite warm. It's generally recommended to hire a skilled window installer. A professional installer has the knowledge and experience that ensures your windows are properly installed and that you get the most out of your investment.

After window installation, it's important to check for any air leaks and make sure the windows are properly sealed. You should also wash the windows at least once a year to prevent debris from accumulating and causing damage. Additionally, if you live in an area with abundant rainfall, you should inspect the window sills and frames regularly to ensure that the seals are not wearing away or cracking.

Yes, many window companies provide financing options. Some installers offer low-interest loans, although you may not qualify if your income is on the higher end, while other companies offer unique financing plans with terms and conditions that vary depending on the project.

Other East Islip, NY Home Services