At AGranger, we'll always communicate with you about your options and help you decide on the best installation type for your situation.
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There are two types of window installations: full replacements & retrofit. In most cases, a full replacement is the correct approach when replacing windows in an existing home or building. Retrofits can technically be used anytime, but they are not an appropriate standard approach and are only recommended in rare circumstances.
The Standard Approach
METHOD 1 – FULL REPLACEMENT
Also known as complete, or stud-to-stud, replacement, this approach involves removing, disposing and replacing the entire window frame right back to the original framing/studs. This is crucial to the long-term success of new windows, as it allows for a thorough inspection for any signs of rot and moisture damage. By starting fresh with new higher quality materials and proper insulation, you can be assured your windows are air and watertight, and that you will fully benefit from energy efficiency and longevity – making the most of your investment. This type of install is the correct approach for most replacements.
Advantages of full replacement
- Guaranteed air & watertight installation plus new foam insulation results in peak energy efficiency, performance and longevity
- New frames will result in a brand new & refreshed look from both the interior and exterior
- Opportunity for a thorough inspection, removal, and remedy of any rot or damage to building structure
- No size changes to glass/viewing area
Disadvantages of full replacement
- More complex & labour intensive than retrofit
- Blinds and curtains will need to be removed for the new installation
- There will be some interior trim that will need to be painted
For Rare Cases
METHOD 2 – RETROFIT REPLACEMENT
There are only certain circumstances where this approach is warranted, such as historical homes and buildings.
This method involves installing a new window insert into the existing frame of the old window. It is quick and easy but does not allow for any changes to insulation, or for inspection of mold, rot, or moisture damage that may be occurring under the old existing frame. If these are present, retrofits will not address the issue and they will persist – although unnoticed, as they will now be hidden in the wall. Any water or air leakage that may be present WILL NOT be addressed. The old window frame will remain visible, and the glass/viewing area will become smaller.
In the case of heritage homes, it may help to preserve the existing look of your home – however in many circumstances experienced installers can achieve the same, or very close to, with a full replacement.
Advantages to retrofits
- Much less labour intensive, which means it will be less expensive
- May help to preserve the look of heritage homes and buildings
- Existing draperies and curtains can remain in place
Disadvantages to retrofits
- No opportunity to inspect and remedy any rot, mold, or moisture damage. These issues will likely continue to persist (unnoticed) if they are present.
- Will not address insulation around the windows
- The old frame will still be visible
- Will have a smaller glass/viewing area than the old windows
Retrofit windows can provide a temporary/visual fix without addressing any of the underlying issues such as potential structural or insulation deficiencies. While retrofits may provide a fast and cheap option on the surface, and can be the appropriate approach for a handful of situations, it may be more expensive in the long run and won’t deliver the long-term benefits that the more in-depth and complex full replacement method offers.
