I don't know why not - they expertly repaired my laptop keyboard, and for free, in just a few minutes
Gut feeling is they can't since it's more of a second hand shop rather than a repair shop, but doesn't hurt to call and ask. You should search for computer repair shop instead.
We repair screens on Macbooks, and Macbook Airs all the time. Bring in the laptop for us to check out if you would like.
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