Costs to repair/replace cornice

[Coles]

As our restoration continues , turning our early 1900's house back into one dwelling, there is now a problem with the ceiling in the hallway. The original ceiling is badly damaged, and when it was flats they used plasterboard to replace some and then hid all the mess with a stud wall (now removed). So one part is slightly lower than the other, which wasn't as noticable when there was a diving wall. They also wallpapered over some of the cornice and painted with Artex.

One suggestion is taking down the entire ceiling, which would result in damage to all the cornice. It's already damaged in places.

I am struggling to find someone who is an expert in cornice, I have one, but also like to get a few quotes.

Does anyone have an idea of what you would pay to replicate replace or repair the damage?

We are in London.

Thanks

 

[CliffordPope]

I did once replace the cornice in an entire room, including a jutting out chimney breast. The supplier did a range of styles in cast plaster on a hessian backing, in 10 foot lengths. It was very heavy and a nightmare to put up, but I did eventually manage it singlehanded.

The adhesive supplied was simply sloppy plaster, and was said to be the traditional way. It was totally useless, and had no adhesive power whatsoever because the cornice simply sucked the moisture out of the plaster adhesive and then it fell down.
I found ordinary tile cement worked well, the cornice supported on timber props until the adhesive had dried.

It cost a lot more than polystyrene from B&Q, but a fraction of the price of getting a proper plasterer to cast it in situ !

 

[malcolm]

That's easily repairable by the same people you'll need to repair the plaster on the walls. Take off the high spots/paint on the edges. Then repair/fill the gap until it is just below the surface, then finish with a fine plaster forming it with a steel rule using the adjacent plaster as a former.

 

[Coles]

That's easily repairable by the same people you'll need to repair the plaster on the walls. Take off the high spots/paint on the edges. Then repair/fill the gap until it is just below the surface, then finish with a fine plaster forming it with a steel rule using the adjacent plaster as a former.

Thank you.

This is where they joined the old with new plasterboard.