10 Best Window Replacement Companies in Central Islip, NY

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Last Updated: February 25, 2025

Windows play a big role in the appearance of your house, as well as its energy efficiency. Upgrading your windows is a great way to increase the value of your home. In Central Islip, you could save an average of $215 a 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. When looking for a window installation company, it's important to pick the right one, so we've written this guide to the best window installers in Central Islip.

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Top Pick
4.1/5
  • 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 Customer Service
4.0/5
  • Award winning company
  • Products made in the US
  • Knowledgeable sales representatives

Top 10 Best Window Replacement Companies in Central Islip

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.

Renewal by Andersen of Long Island

Renewal by Andersen of Long Island Logo

Our Rating

User Rating

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

Educational website

Good customer service

Price transparency

Free assessment

Services Offered

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

Power Home Remodeling

Power Home Remodeling Logo

Our Rating

User Rating

1660 Walt Whitman Rd #140, Melville, NY 11747 (631) 339-7268 powerhrg.com

Good customer service

Price transparency

Timely service

Free assessment

Services Offered

Energy-efficient options
Window replacement/installation

Smithtown Window Replacement and Doors

Smithtown Window Replacement and Doors Logo

Our Rating

User Rating

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

Educational website

Good customer service

Energy-efficient windows and doors

Weekend availability

Free assessment

Price transparency

Family-owned and operated

Services Offered

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

Melville Window Replacement

Melville Window Replacement Logo

Our Rating

User Rating

560 Walt Whitman Rd, Melville, NY 11747 (631) 710-7533 melvillewindowreplacement.com

Educational website

Free assessment

Price transparency

Good customer service

Timely service

Services Offered

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

Glass Doctor

Glass Doctor Logo

Our Rating

User Rating

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

Home and auto glass

24/7 emergency service

Educational website

Membership plans for glass repair

Good customer service

Price transparency

Services Offered

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

Window King LLC

Window King LLC Logo

Our Rating

User Rating

1075 Morris Park Ave, Bronx, NY 10461 (718) 792-5989 windowking.biz

Price transparency

Free assessment

Free in-home consultation

Timely service

No-interest financing

Estimate price matching

Good customer service

Educational website

Services Offered

Glass doors
Vinyl frames
Energy-efficient options
Double-hung
Window replacement/installation

Pro Quality Home Improvements Inc.

Pro Quality Home Improvements Inc. Logo

Our Rating

User Rating

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

No-interest financing

Good customer service

Small business

Free in-home consultation

Educational website

Price transparency

Free assessment

Timely service

Services Offered

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

Alure Home Solutions

Alure Home Solutions Logo

Our Rating

User Rating

1999 Hempstead Tpke, East Meadow, NY 11554 (516) 296-7777 alure.com

Free assessment

Educational website

No-interest financing available

Price transparency

Special warranties for military

Good customer service

Online appointment scheduling

Services Offered

Window replacement/installation
Double-hung
Glass doors
Glass showers

Sky Windows and Doors

Sky Windows and Doors Logo

Our Rating

User Rating

145 N Main St, Freeport, NY 11520 (516) 686-8485 skywindowsnj.com

Good customer service

Price transparency

Timely service

Free assessment

Educational website

Services Offered

Vinyl frames
Energy-efficient options
Mirrors
Glass doors
Metal frames
Glass showers
Wood frames
Custom glass
Window replacement/installation
Storm/impact windows

Bernie's Glass & Mirror

Bernie's Glass & Mirror Logo

Our Rating

User Rating

1554 Fulton St, Brooklyn, NY 11216 (917) 749-4858 berniesglass.com

Timely service

Educational website

Price transparency

Good customer service

Free assessment

Services Offered

Double-hung
Glass showers
Glass doors
Mirrors
Glass repair
Window repair
Window replacement/installation
Skylights
Energy-efficient options
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 Central Islip?

Window installation and replacement costs are influenced by several factors, including how difficult your windows are to access or install, the materials you choose, and the number and size of the windows. On average, Central 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

Installing new energy-efficient windows can significantly enhance your home's comfort, appearance, value, insulation, and noise reduction. Some clear indicators it's time for new windows include the following:

  • Cold air and drafts leaking in from old, loose-fitting windows.
  • High energy bills and discomfort from poor insulation around windows.
  • Fogging between window panes, condensation issues, or rotting window frames letting in moisture.
  • Outdated and inefficient window styles that detract from your home’s curb appeal.
  • Windows that are difficult to open, close, or lock properly due to age and wear.

How To Choose a Window Company

For a successful window replacement, you want to locate an installation contractor with proven expertise. Below, we cover the most important considerations when picking a window installer.

Experience

Seek out an established local window company with a proven track record of success installing all window types. Experienced providers are more likely to understand Central Islip's climate and will know how to meet your needs. To confirm a company deliver quality work, request references from recent customers.

Certifications

Choose companies that have certifications from major window brands, and that have Fenestration and Glazing Industry Alliance (formerly AAMA) certification. Certification means they've been properly trained in installation best practices. Make sure installers are staff, not subcontractors, and confirm the technicians doing your job are certified.

Reputation

Spend time reading through online reviews, checking the Better Business Bureau (BBB), and requesting local references. Review customer feedback to confirm that the company regularly provides good workmanship and customer service. Avoid companies with complaints of shoddy or unfinished work.

Process

The highest-quality window installers will supply a comprehensive project plan and schedule, clear expectations, and an overview of all product and installation options. Avoid companies that offer unclear quotes or timelines that lack necessary details. Look for ongoing contact throughout to avoid surprises later on.

Warranties

Look for window firms that provide guarantees on their work, and that provide warranties on products and labor. This indicates faith in their work. Also look for unlimited lifetime warranties that can transfer to new homeowners.

Materials

Ensure your provider works with durable, energy-efficient window brands that fit your budget. Look for enhanced UV protection, design flexibility, and good energy ratings. Confirm the window materials come with their own manufacturer warranties as well.

Frequently Asked Questions About Window in Central Islip, NY

The ideal time to install windows in Central Islip is when temperatures are moderate, generally in the spring or fall. This allows installers to work without having to worry about the weather.

The best type of replacement windows for your Central Islip home depends on the year your home was built –the average house in Central Islip was built around 1968. For older homes, you might want to consider energy-efficient windows such as double-pane windows, which are made to keep your home cool in the summer and warm in the winter. Wood frames also have a classic look that's perfect for older homes. For more modern homes, you can consider vinyl windows, which are affordable, durable and have a modern look.

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

The installation process for windows typically takes 1–3 days depending on the number of windows to be installed. Professional window installers should be able to provide an estimate on the time it will take to complete the installation job, but you can expect it to take around 30 minutes per window.

In some cases, you can replace your own windows, but it's generally recommended to hire a professional. It's important to consider the local climate when replacing windows, as it will affect the process. For example, the temperatures in Central Islip can reach an average low of 49, so you need to consider energy-efficient windows that can protect from the cold. It's also important to get the measurements right and understand the instructions for installation. Hiring a professional for your window replacement project will guarantee that everything is installed correctly.

Getting windows installed by a professional can provide a number of benefits. Professional installers can guarantee that your windows are properly installed, weatherproofed, and insulated, preventing air leakage and maximizing energy efficiency. Professional installers are also well-equipped with the necessary tools and techniques to get the job done, saving you time and money.

Other Central Islip, NY Home Services

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