Unified Home Remodeling

How Much Does It Cost For Sliding Windows?

Ideal Unified Slider Window

On average, you can expect to pay $400 to $2,100 for a new sliding window.

Sliding windows are among the most common window styles available today because they provide beautiful, unobstructed views of your surroundings. These windows open left or right and have several advantages over casement windows and double-hung windows. They are generally easier to operate, have fewer parts, and tend to allow for wider installations which provide you with a wider view.

Our sliding windows are available in a few different configurations, so it’s important to consult a professional window contractor to ensure you’re getting the right sliding windows for your home.

This cost includes both materials and labor, but keep in mind that the cost can go up, or down, depending on the window brand, materials, and features you choose. Despite their large size, they’re often an affordable choice for window replacement thanks to their simple construction.

Average cost of a sliding window
ranges from$400$2,100

Available Options for Replacement Windows

Unified has been replacing and repairing windows for more than 30 years, and windows remain our top-selling product with a lifetime warranty on labor and materials. All of our windows are custom-made to fit the unique opening in your home, ensuring windows function properly and there is no air leakage into (or out of) your home. We are a preferred window contractor for all our manufacturers, including leading brands like Andersen, Pella, and Ideal.

slider window installed by window contractor on Long Island, NY


Sliding windows come in larger sizes than double-hung windows since they move right to left instead of up and down. Just by turning the window on its side, you can install a larger slider than you could with a double-hung. Sliding windows are not suitable for window spaces that are tall and narrow—they are almost always wider than they are tall—but they are beautiful options for homes that have expansive landscapes.

Our windows are always custom ordered and made to fit the spaces in your home as airtight as possible, whereas a traditional double-hung window might not fit as well.

You should schedule a free consultation with our home remodeling experts by calling 888-631-2131 or filling out our online form for information on custom sizes and associated costs to install.


There are three main types of slider windows:

  • A single-panel sliding window has one fixed pane and one moveable pane. The moveable pane slides back and forth on the sash.
  • A two-panel sliding window has two or three panes of glass, but they have two panes that move. You can open either side of the window for more ventilation.
  • A three-panel sliding window has three panels of glass within one window frame. The middle panel is usually fixed, while both outer sashes move left or right to open the window.


The cost for new windows will vary depending on the different window frame materials you choose. Our sliding window frames are available in wood, vinyl, and composite materials.

Vinyl windows can be a practical choice. We have partnered with Ideal Windows, the No. 1 vinyl window in the industry, since 1989 and we’re proud to be a certified dealer. Each of our slider window options features clean lines offering a streamlined look. An advanced track system allows the sashes to glide smoothly, making them easy to operate. For comfort, easy operation, and solid performance our sliding windows get the job done.

What do vinyl sliding windows cost?

The average cost to install a vinyl sliding window ranges from $400 to $800.

Aluminum sliding windows are durable, lightweight, affordable, available in a variety of styles, and energy efficient, making them a great choice for any home.

What do aluminum sliding windows cost?

The average cost to install an aluminum sliding window ranges from $1,000 to $1,700.

Composite windows are made from a combination of wood, fiberglass, and vinyl. Get the best of both worlds: a low-maintenance exterior that encases a more efficient mix of wood and fiberglass interior. The Andersen 100 Series gliding windows feature low-maintenance exteriors and real wood interiors. They have a single sash that glides horizontally to allow for full top-to-bottom ventilation and are an excellent choice for rooms that face walkways, porches, or decks because the sash does not open outward.

What do composite sliding windows cost?

The average cost to install a composite sliding window ranges from $1,200 to $2,100.

Wood windows offer a natural beauty that gives your home a traditional appearance. They offer the best insulative value, but also require more regular maintenance than the other options. A well-built wood window will stand the test of time. We offer Pella 250 Series windows that are rated #1 by homeowners for the highest quality. These windows come with an optional AutoLock, which automatically locks the window when it’s shut.

Average cost to install a sliding window made of
vinyl ranges from$400$800
aluminum ranges from$1,000$1,700
composite material ranges from$1,200$2,100


We are a preferred window contractor for some of the top-rated window brands, including Ideal, Andersen, and Pella. Here is a breakdown of the average prices for the best sliding windows by brand. Note these prices are just an average. Depending on what you order, the cost could be more or less. 

BrandPrice Per Window
Ideal Windows$400-$1000
Andersen 100 Series$700-$2500
Andersen 200 Series$1200-$2500
Andersen 400 Series$2500-$6000
Pella 250 Series$700-$2500
Pella Impervia$1200-$2500
Unified Window - Slider Window

Glass Types

A key component of any window is its glass—and the right glass, optimized for Long Island’s unique climate, can help reduce the heating and cooling costs by slowing thermal transfer.

Energy-efficient dual-pane or triple-pane glass options with argon help slow the transfer of heat, keeping your home more comfortable year-round—through the heat of the summer and the cold of the winter. An insulating foam inside the frame is also available for increased energy efficiency.

You likely won’t need to look much further than the window’s glass to determine the unit’s efficiency, as all windows in the Energy Star program will have a sticker on them with a rating from the National Fenestration Rating Council.

Contact us at (888) 631-2131 or visit www.unifiedhomeremodeling.com for a free estimate. Our professionals will help you build a replacement window package that maximizes style, energy efficiency, and performance specifically to fit your lifestyle. All purchases with Unified are completed with an expert installation and a lifetime of peace and happiness.


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