Need advice on fill deep holes so can re-hang radiator.

Hi,

I took a radiator down to drain and paint. In the meantime the walls were replastered. When I attempted to redrill holes to re-hang the radiator I hit the old wooden raw plugs which disintegrated as well as a small part of the surrounding walls, which are not in good condition beneath the new plastering. The drilling went into the brick work and I expanded the holes slightly to try and make for more uniform filling.

Basically I'm looking for advice on how to fill these holes (with what?) and make them strong enough to hold the radiator. I couldn't see anything that looked up to it at the hardware shop and the guy there launched into a long story that left me confused.

Left hole: approx. 27mm width x 25mm height x 67mm depth
Right hole: approx. 36mm width x 35mm height x 62mm depth

Anyway advice would be much appreciated! I've attached some photos below to make the problem clearer.

Thanks!!

Fill the hole with gripfill flush with plaster, insert rawlplug and let set...mind the hole needs to go past the plaster and into brick.

thanks for the gripfill tip. Also I think that will be okay re brick as I have already drilled that far.

Sorry if this is a stupid question, but what do you mean by flush with plaster?

Fill the hole with gripfill till it is level with the surface of the plaster then insert the plug whilst till wet.

ah see what you mean. Thanks a lot for your help!

if that fails drill a bigger hole and fill it with anchorfix or something similar, put your rawl plug in and wait , but work quick cos that stuff goes off fast, you could probably hang a filled radiator in under half an hour. the only problem with the 2pac tubes is you tend to waste quite a lot of it

i used the stuff to hang a gate post when all else had failed and couldnt fault it

Car body filler works a treat. Goes off in 15 mins.