Carpentry & Joinery Question

Large gap between hardwood sill and concrete.

I have just had a timber window frame replaced on my ground floor, and a new aluminium sliding patio door is to be installed within the frame in a couple of weeks time. The original hardwood timber door sill on which the verticals sat directly, was rotting so the sill was replaced too. The thickness of the new hardwood sill is less than that of the original 1960's one, so my joiner has had to chock it up from underneath in order for the rest of the pre-machined frame to fit the gap as planned. Consequently there is a gap of about an inch between the concrete on which the whole thing sits and the new hardwood sill. Do you think that the frame will last as long as I should expect it to without risk of movement?

2 Answers

hi there I don't think you will have a problem but you may want to get a mortar gun or pointing gun like a sealant one but for mortar it will make your live easy. And you can fill the gap. expanding foam can also be used but I personal don't like to under a sill if all is done right it should last for many years to come

Answered 23rd Sep 2017

RCH Refurbishment

Member since 29 Aug 2017

The joiner should not have left a gap under the cill.
This needs pointing in sand and cement as soon as possible.

Answered 23rd Oct 2017

Wolf Joinery

Member since 20 Sep 2017

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