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10 Best Window Replacement Companies in Darien, CT

More than 380 people have received a free quote in the last 60 days.

Last Updated: February 25, 2025

Whether you're looking to upgrade your home or are simply in need of a change, upgrading your windows is a great plan. Your windows play an important role in your home's value and its energy efficiency. According to the Department of Energy, heat gained or lost through outdated windows could account for 25–30% of the heating and cooling use in your home. By upgrading to energy-efficient windows, you could save an extra $441 on your power bills annually in Darien. Picking a window installer can be difficult, which is why we've compiled a guide to the top window installation companies in Darien.

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.
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 Darien

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

Good customer service

Free assessment

Price transparency

Educational website

Services Offered

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

Power Home Remodeling

Power Home Remodeling Logo

Our Rating

User Rating

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

Timely service

Price transparency

Free assessment

Good customer service

Services Offered

Window replacement/installation
Energy-efficient options

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

Energy-efficient windows and doors

Family-owned and operated

Free assessment

Educational website

Price transparency

Weekend availability

Good customer service

Services Offered

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

The Glass Guru

The Glass Guru Logo

Our Rating

User Rating

130 Hackensack St, East Rutherford, NJ 07073 (201) 366-3699 theglassguru.com

Good customer service

Educational website

Free assessment

Services Offered

Glass repair
Metal frames
Skylights
Window repair
Glass showers
Energy-efficient options
Custom glass
Mirrors
Vinyl frames
Fiberglass frames
Screen repair
Wood frames
Triple pane glass
Window replacement/installation
Tempered glass
Storm/impact windows
Glass doors

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

Good customer service

Price transparency

Timely service

Services Offered

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

Glass Doctor

Glass Doctor Logo

Our Rating

User Rating

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

24/7 emergency service

Price transparency

Home and auto glass

Membership plans for glass repair

Good customer service

Educational website

Services Offered

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

Window King LLC

Window King LLC Logo

Our Rating

User Rating

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

Free in-home consultation

Good customer service

Timely service

Free assessment

Estimate price matching

Educational website

No-interest financing

Price transparency

Services Offered

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

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

Free in-home consultation

Timely service

Free assessment

Educational website

Small business

Price transparency

Good customer service

Services Offered

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

Alure Home Solutions

Alure Home Solutions Logo

Our Rating

User Rating

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

Online appointment scheduling

Good customer service

No-interest financing available

Special warranties for military

Free assessment

Price transparency

Educational website

Services Offered

Glass doors
Double-hung
Glass showers
Window replacement/installation

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

Free assessment

Educational website

Good customer service

Timely service

Price transparency

Services Offered

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

The cost of window installation or replacement is influenced by a number of factors, including the number and size of the windows, how difficult your windows are to access or install, and the materials you choose. On average, Darien homeowners will spend roughly $280 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 noise reduction, value, appearance, comfort, and insulation. Some clear signs it's time for new windows include the following:

  • Inefficient and outdated window styles that reduce your home’s curb appeal.
  • Windows that are difficult to open, close, and lock properly due to age and wear.
  • Drafts and cold air coming in from old, loose-fitting windows.
  • Fogging between window panes, condensation issues, or rotting window frames letting in moisture.
  • High energy bills and discomfort from poor insulation.

How To Choose a Window Company

Selecting a window installer with appropriate qualifications helps ensure a smooth installation. We cover the most important considerations for choosing a qualified company below.

Experience

Look for well-established local installers with considerable experience. Installers that have been installing windows locally for many years are more likely to know the local climate and how to best meet your needs. Ask for references from recent customers to verify that a provider delivers quality work.

Certifications

Select an installer that is certified by major window brands and groups like the Fenestration and Glazing Industry Alliance, formerly known as the AMMA. Suitable credentials show that a contractor has training in window installation best practices. Confirm that installers are staff, not subcontracted workers, and verify that any technicians working on your home are certified.

Reputation

Spend time reviewing online feedback, checking the Better Business Bureau, and requesting local references. Review customer feedback to verify that a company delivers consistent quality workmanship and great service. Avoid companies with complaints of shoddy work or unfinished jobs.

Process

A reputable window installer will be able to provide a detailed project plan, precise timelines, clear expectations, and an overview of all material and installation options. Avoid companies that provide vague quotes or schedules. Look for continual contact throughout to avoid surprises once installation is underway.

Warranties

Look into window installers that back their installations with warranties on materials and labor. This indicates confidence in their work. Research companies with unlimited lifetime warranties that can be transferred to new homeowners.

Materials

Verify that your window provider works with long-lasting, durable brands, offers energy-saving window options, and fits your budget. Look for window options with design flexibility, enhanced UV protection, and good energy ratings. Check whether the materials come with their own manufacturer warranties.

Frequently Asked Questions About Window in Darien, CT

The ideal time to install windows in Darien is when temperatures are moderate, generally in the spring or fall. These conditions allow professionals to do their work with less worry about the weather.

The best type of replacement window for your Darien home will vary based on the age of your home, as well as your personal style and budget. You'll want to consider the style of your home — such as if it's old — so your new windows match. Wooden windows can provide a classic look and feel, while vinyl-framed windows are more popular in more modern homes. Fiberglass windows are also a popular choice, as they can be energy efficient and long-lasting.

Windows made from wood, fiberglass, or vinyl can last the longest, with some lasting up to 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 over time.

It depends on your budget and the condition of your existing windows. If your windows are in reasonable condition, you might only replace the ones that need replacing. If you're in an area that has average energy costs, you may want to consider replacing all your windows at once to get the highest energy savings.

In some cases, you can replace your own windows, but it's 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 Darien can reach an average low of 44, so you should consider energy-efficient windows that can protect from the cold. It's also important to measure correctly and understand the instructions for installation. Hiring a professional for your window replacement project will guarantee that everything is done correctly.

Window companies in Darien usually offer a wide range of services, including measuring and installing new windows, fixing existing windows, swapping out window glass, and hanging window treatments. They may also offer extra services such as weatherproofing or cleaning.

Other Darien, CT Home Services