Cost to Install Windows – How Much to Budget in 2025 ?

Windows act as the link between your home’s interior and the outside world, letting in fresh air and natural light. They also provide a certain level of insulation, creating a cozy and pleasant indoor environment.

Windows are one of the most important elements of a home. Over time, they may need to be renovated or replaced to meet modern needs. So, how much does it actually cost to install a window?

Replacing windows is no small project—it involves working with glass, a delicate material. That’s why, if you’re planning to replace the windows in your home, it’s important to do your homework to understand what’s involved in this kind of job.

Replacing Your Windows: What budget should you plan for in Quebec?

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What is the cost based on the installation type?

Full-frame Installation

Full-frame installation is usually recommended when your existing windows need to be completely removed and replaced. This involves taking out the entire window, including the frame and all anchor components. This type of installation is necessary when there’s rot in the wood or moisture buildup that has damaged the surrounding area. These problems can only be properly addressed if the full frame is removed. This method is more expensive, with average prices ranging from $500 to $1,500 per window.

Retrofit Installation

A retrofit installation involves fitting a new window into an existing frame. With this type of work, most of the original frame components stay in place. Depending on the style of the existing window, aluminum capping might be needed to cover the exposed frame. This is a more affordable option compared to a full-frame replacement, with prices ranging from $300 to $850 per window (glass only).

Storm Windows

Storm windows are secondary windows installed on the inside or outside of an existing window, primarily to improve thermal and sound insulation. They’re often used in older homes where replacing the original windows isn’t feasible or desirable. In addition to their energy efficiency, storm windows can provide extra protection against the elements while preserving a home’s architectural character. This is generally a more economical option, with installation costs ranging from $120 to $250 per window (glass only).

In some cases, contractors may offer discounts or reduced rates per window if multiple windows are installed at once. Be sure to do your research and consult experts when you’re ready to move forward with your project!

What is the cost for different types of windows?

There are several types of windows available on the market, each with its own unique features and benefits. The double-hung window is a timeless classic known for its practicality and efficiency. It opens from both the top and bottom, allowing warm air to escape through the top while cooler air enters from below. This dual-opening feature also makes cleaning easier, as both sashes tilt inward. However, when both sections are open, the reduced opening space can slightly limit airflow. This type of window typically costs between $400 and $1,100, while the single-hung window costs between $200 and $900. 

Casement windows, on the other hand, open outward using a crank mechanism with side hinges. This design offers excellent ventilation and a tight seal for better insulation. Although they only open up to about 5 inches, which may be a drawback in terms of aesthetics, they remain a popular choice for energy efficiency. Casement windows generally range from $350 to $1,200.

What factors influence the average price of window replacement in a home?

Source : Service Vitrerie ComExpress & Filles inc.

Several elements can affect the cost of installing new windows, including:

Type of Window

The window model you choose has a significant impact on cost. For instance, casement and awning windows typically cost more than sliding or double-hung models due to their more complex opening mechanisms and superior sealing.

Window Size

Larger windows naturally cost more. Custom-made or oversized windows require more materials and more complex installation, increasing the overall price.

Materials Used

The frame material (PVC, wood, aluminum, or hybrid) also directly affects cost. PVC is often the most affordable, while aluminum and hybrid frames offer greater durability and performance at a higher price point.

Installation Accessibility

Where the windows are located in the house can also influence the price. Windows installed on upper floors or hard-to-access areas may require scaffolding or special equipment, leading to additional charges.

Installer or Supplier

Pricing can vary depending on the experience, reputation, and warranty provided by the installer. It’s always wise to request multiple quotes to find the best value without compromising on quality.

Glazing

Double Glazing

Double-glazed windows are very common and widely available in various shapes and frames. While not the cheapest option, they offer solid performance. They feature a sealed gap filled with inert gas, which improves thermal efficiency and sound insulation. Compared to single-pane glass, double glazing helps block more outdoor noise and contributes to better temperature control. Though more expensive upfront, these windows can help reduce long-term energy costs.

High-Performance Glass

High-performance glass is the most expensive option on this list. Various types of specialized glass are available, including:

• Triple glazing

• Soundproof windows

• Impact-resistant glass

• Tinted glass to reduce thermal conduction

Depending on your individual needs and living environment, one of these advanced options may be worth considering.

Our Tips for Making an Informed Decision

Replacing or installing new windows is a major investment that can enhance the comfort, energy efficiency, and curb appeal of your home. Before you start, take time to assess your needs, budget, and home’s specific characteristics. Compare installation types, available materials, and window models to find the right solution for your situation. Don’t hesitate to request multiple quotes from certified professionals to get the best quality at a fair price. With the right information, you’ll be ready to make a smart, lasting choice.

To find out about the average prices of different home renovation projects, check out our Home renovation price guide.

FAQ

Is it worth replacing 20 year old windows with new ones?

Yes, it absolutely is! Windows that are 20 years old have likely reached the end of their typical lifespan, and advancements in energy-efficient technology mean that newer windows can offer significant improvements. Replacing them with more energy-efficient options could lead to immediate savings on your energy bills, as modern windows are designed to better insulate your home and reduce heat loss.