Retrofit Windows: Understanding the Pros and Cons

If you’re considering a window replacement project for your home, you may have come across the term “retrofit windows.” But what exactly does it mean? In this article, we’ll take a closer look at retrofit windows, the differences between retrofit windows and full window replacement, the typical conditions that necessitate a full window replacement, and the conditions that may allow for a retrofit approach. We’ll also explore the pros and cons of retrofit windows and the process of retrofit windows replacement.

The Differences Between Retrofit Windows and Full Window Replacement

There is a major difference between fully replacing your windows versus a retrofit window approach:

Full Window Replacement

As the term implies, the entire existing window assembly is removed and replaced, including all components such as the window frame and sash, along with all other parts and trim. This approach allows for inspection and removal of any other deficient materials around the frame, such as moisture damage.

Retrofit Windows Replacement

The existing window frame and all its components remain in place; only the sash and related components are replaced. This is a less expensive approach, as there are fewer materials and less labor involved.

Let’s dig a little deeper into each option for your window replacement.

1. Vinyl Single Slider Windows Replacement
2. Vinyl Single Hung Windows Replacement
3. Picture Windows Replacement
4. Vinyl Double Hung Windows Replacement
5. Fixed Casement Windows Replacement
6. Vinyl End Vent Slider Windows Replacement
7. Vinyl Double Slider Windows Replacement
8. Vinyl Casement Windows Replacement
9. Vinyl awning windows Replacement

Typical Conditions for a Full Window Replacement

Full window replacement becomes necessary when there are issues with the frame itself, such as major air or moisture leakage through the frame, warpage, or wood rot. In a worst-case scenario, wood rot can also result in the development of mold in the walls, which can compromise the health of the home’s inhabitants.

If you’re aware that your existing window frames are responsible for considerable energy waste, full window replacement can also allow for energy efficiency upgrades.

Full window replacement also allows you to make stylistic changes to both the interior and exterior of your windows.

Conditions Which May Allow for Windows Retrofit

The main concern when considering a retrofit approach is the condition of your existing frame and trim. If they are in good shape, both in terms of performance and appearance, you may be able to take advantage of a window retrofit approach.

Frequently, older houses with high-quality wood frames are good candidates for the window retrofit method.

Retrofit of Window Glass Only

This approach would also fall into the retrofit category. Advancements in window glass technologies such as Low-emissivity (LoE) Glass, Warm-edge Spacers, and Triple Glazing can significantly add to the energy efficiency of a window glass assembly. This type of retrofit is a good option for those who want to improve the energy efficiency of their windows without having to replace the entire window frame.

Low-emissivity (LoE) Glass 

This special treatment to the glass surface of a window allows for higher energy efficiency, by limiting heat transfer in and out of the home interior, without drastically affecting the amount of natural light let into the home.

Warm-edge Spacers 

A plastic insulating material inserted into a window assembly to create a barrier against heat loss.  These can significantly add to the energy efficiency of a window glass assembly.

Triple Glazing 

As the name would imply, these window glass assemblies include three panes, with additional insulating capability built in.

Should your window frame and sash be in acceptable condition, but the glass itself is only single-pane, these window glass upgrades could be a good solution, in a cost-effect manner, towards upgrading your home’s thermal performance.

Pros and Cons of Retrofit Windows

Pros

1. Less expensive than full window replacement
2. Less labor-intensive
3. Allows you to keep the existing frame and trim
4. Allows for energy efficiency upgrades
5. Can improve indoor air quality and comfort

Cons

1. Limited stylistic changes compared to full window replacement
2. May not address underlying issues with the frame
3. May not be suitable for homes with significant frame or trim damage

Retrofit Windows Replacement Process

The process of retrofit windows replacement involves the following steps:

1. Inspection of the existing frame and trim to determine suitability for retrofit approach
2. Removal of the existing sash and related components
3. Installation of the new sash and related components into the existing frame
4. Sealing and weather-stripping to ensure proper energy efficiency

Choosing Your Window Retrofit Approach

It’s pretty clear that there are a range of options when it comes to home window replacement, from full window removal and reinstallation, to retrofit options which can include only upgrades to the glass panels themselves.  The best way to determine what’s best for your home is to consult with an expert.  A qualified window technician will be familiar with all the options; they’ll also be able to assess your specific conditions and provide the best approach custom to your needs.

FAQs

Can I install retrofit windows on any type of frame?

Retrofit windows can be installed on most types of existing window frames, including wood, vinyl, and aluminum.

What are the limitations of retrofit windows?

Retrofit windows have some limitations such as limited stylistic changes compared to full window replacement, may not address underlying issues with the frame, and may not be suitable for homes with significant frame or trim damage.

Are retrofit windows cheaper than full window replacement?

Yes, retrofit windows are generally less expensive than full window replacement as there are fewer materials and less labor involved.

When is full window replacement necessary?

Full window replacement becomes necessary when there are issues with the frame itself, such as major air or moisture leakage, warpage, or wood rot. It is also an option when looking to upgrade the energy efficiency of the windows and/or make stylistic changes to the windows.

Conclusion

Retrofit windows can be a cost-effective and energy-efficient option for homeowners looking to replace their windows. However, it’s important to consider the condition of the existing frame and trim, as well as the potential for underlying issues, before deciding on a retrofit approach. If you’re considering a window replacement project, be sure to consult with a professional to determine the best option for your home.

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With windowreplace.ca, you can choose new windows for your home and have them professionally installed. For decades, we have been installing high-quality doors and replacement windows in Toronto.

Thanks for taking time to read this summary on retrofit window options.  We welcome your questions and comments.  Please contact us.