hi, @nickpye at this point such kind of integration is under development on both Wix and Editor X, you can vote for it here if you would like to: https://support.wix.com/en/article/wix-stores-request-integrating-wix-bookings
I can understand that you need it now, so in case of repair may take some time, maybe you can create products for all kinds of repairs, so customers will be able to offer everything in same Stores tab but under the different product categories.
There will be 2 categories, like products (screen) and services (repair) visitors can purchase in the same cart. I’ve already seen this approach, so I guess it may work for you. In case you do not like this idea, please ping me, maybe some other ideas will come to mind