There are two main ways to seal a chimney, with a liner or with slip casting. Both methods cost around 2000 SEK per meter a couple of years ago when I had it done in an apartment in Stockholm, (it was 8 meters up to the roof and it cost 16000 if I recall correctly...)
I rebuilt the chimney above the roof (knocked down the stone and rebuilt it with new mortar), using the stone from before.
Lining casting approximately 24m 3*8m
Rendered with Sto's system with mesh etc. the entire exterior chimney.
Poured a new crown of about 150kg.
This cost just under 3000kr, not including the scaffolding, and I did everything myself and bought ceramic mortar cheaply online.
Maybe this gives you some info.
However, the question is, are you repointing the chimney because the stone is loose or because the flue is leaking?
Lining casting approximately 24m 3*8m
Rendered with Sto's system with mesh etc. the entire exterior chimney.
Poured a new crown of about 150kg.
This cost just under 3000kr, not including the scaffolding, and I did everything myself and bought ceramic mortar cheaply online.
Maybe this gives you some info.
However, the question is, are you repointing the chimney because the stone is loose or because the flue is leaking?
From what I can understand, the pipe is sealed but the chimney needs to be repointed.
Additionally, the surface layer has peeled? Paint?. on the chimney stack in a closet. Furthermore, the chimney sweep suggested that I should brick up a soot door in the attic.
Additionally, the surface layer has peeled? Paint?. on the chimney stack in a closet. Furthermore, the chimney sweep suggested that I should brick up a soot door in the attic.
Aha, then I misunderstood the question. If only a little fog is needed, it probably isn't very expensive.
In general, one can say that if repointing is needed, then it's time to redo the masonry. It is possible to extend it a few years with repointing, but the mortar in the joints is leached out.
It depends on the current condition of the chimney and the time horizon you are aiming for.Henri said:
If the chimney only has superficially weathered joints, then repointing is suitable.
A repointing might last for 20-30 years?
Whether repointing is sensible or not probably depends a bit on how far it has gone. In the summer cottage, I intended to fix the joints a few years ago, but it ended up with me replacing bricks instead. So, it ended in rebuilding. In the house where I live permanently, the joints on the chimney above the roof are also quite bad, but there are several flues internally lined with ceramic mortar, so the chimney still feels completely solid and stable. This summer, I will spend some time on the ridge and repoint.