You could try boxing to the ceiling and re fixing a new bit of coving.
Just a side note what is it carrying? I guess water, but any gas pipes in boxing should be ventilated at both ends.
Chances are it is partly sized which broke the handle It would be better to replace the valve if possible.
You could try finding a ring spanner that fits and securing it with the original screw and a washer.
Try pouring boiling water over the heads to expand them, wear gloves when they come off your knuckles will suffer! Try an adjustable spanner adjusted to fit just under the bottom of the head and lever it up. Vinegar left in the top recess under the coloured cap overnight may help to dissolve scale
As a last resort try a reset I had another problem and after trying lots of things took a chance and reset.
Settings/System/ Recovery/Reset this PC, IMPORTANT then click the save my files option.
Took a while but everything went back to normal all I lost were a couple of apps I had downloaded...
AS said couple of coats of paint or perhaps pva first coat diluted on both.
Decant paint into container to avoid contaminating rest of paint and dispose of the brush.
I would look at the flooring you need a draft under floor, Do you have bare boards, if so those gaps add up! Hardboard under carpet and underlay for a start with mastic between the skirting and flooring, also board cupboard floors like under stairs.
Sounds like you are trying to use the filling loop to drain. Can you post a picture of the boiler connections?
Best way if you cannot find a drain cock is pick the smallest downstairs radiator turn off both ends, open the air vent and undo the rad connection enough to drain into a bowl. Then...
SDS will not "hammer" when you squeeze the trigger and pull. Try putting a normal hammer drill on the bit and reversing with that. You can try clamping mole grips on the shaft an inch or so from the wall and using a crowbar behind the jaws levering against the wall. Otherwise the only thing I...
Sounds like crappy paper regardless of price.
A thin paper will highlight defects regardless of PTW or normal. Sorry but unless your walls are perfect a textured or at least heavyweight paper is the way to go. I don't know how much is done or needs to be stripped off if not much perhaps using...