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Window installation in new cavity wall with 2 leaves not aligned
Anonymous user 24/08/2026 - 3.10 PM
Had a brickie that built a cavity wall with insulation, however he left the inside wall a little bit higher than the outside wall. New window is due to be installed and need a cavity closer put in, however the 2 leaves are not aligned. Is different levels between the inside & outside wall correct? if so, how to go around installing cavity closer?
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2 Answers
Iman
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Hi, thanks for the detailed explanation. The two leaves of the cavity wall don’t necessarily have to be perfectly level, but the difference in height should be checked before installing the new window and cavity closer. The cavity closer needs to be fitted correctly to provide proper insulation, weather protection and a suitable finish around the window opening.
Answered24 August 2026
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