Plastering old boiler hole

[Laurap]

I have just had a new boiler fitted but I know need to plaster where the old boiler was. The area is the size of a boiler (obviously!) & is approx 1 cm to 3cm deep where the flue was. What would be best to use to fill/level it off?
I'm pretty new to this so any help would be much appreciated

Untitled

• Laurap
• 20 Oct 2009
• 2

 

[mikej2005]

I would probably seal it with PVA and then build up layers of undercoat plaster to just below the level of the surrounding wall, then finish off with a topcoat.

Undercoat plaster is coarser than topcoat/finishing plaster, so is more suitable for filling deeper areas. Alternatively, you could use plasterboard initially to cut down on the amount of undercoat paster needed.

If you're not used to making up plaster to the right consistency, then buy a tub of ready-mixed plaster to do the final coats so that you get a good finish.

I've actually used a tub of Wickes jointing compound for this in the past as it's fairly cheap and can be easily sanded to a smooth finish, however this does create a lot of dust, so you need to make sure you wear a proper face mask and make sure it doesn't get into your new boiler or any adjacent rooms !