Probably too late now but put any crushed fingers under running cold water immediately and until there's no more redness (sometimes as much as 15 minutes). I guess ice would do but that's not always available on site.
Thanks, did so. Electrician coming tomorrow for the hob/extractor and then just plumber to do last bits when I can wrangle one, then it's on to decorating the bastard room. Hopefully injury options are limited now.
Probably too late now but put any crushed fingers under running cold water immediately and until there's no more redness (sometimes as much as 15 minutes). I guess ice would do but that's not always available on site.