Double glazing Victorian sash windows

[DameHelena]

Does anyone know a ballpark figure for this? It's three windows making up one large window, IYSWIM. Tall Victorian proportions. I fear the answer but I am going to have to get it done, so...

TIA

If you're in south london I'd recommend London Box Sash - I've no idea if they cover north although I can't see why they wouldn't.

Timbertherm is another company we used.

We had ours’ done 6 Years ago. House built in 1872 and the original windows were in surprisingly good condition so on the advice of the glazier we opted for secondary double glazing. Cost was around £5000 but there were 12 windows. Very pleased with result.

I'm am a traditional sash window renovation specialist with 23+ experience based in Dorset.

We had 7 victian windows restored. Original sash restored, wood stripped back and repaired and then slimline double glazing units fitted, we had them placed behind the stained glass panels in the larger windows. £30k.