We are considering adding external wall insulation to the south-facing facade of a mid-terrace Victorian house.

Has anyone done it? Does anyone have experience with architects / builders / installers etc?

When I asked a similar question a year ago, the only reply I got was from OLBC, a construction company https://nappyvalleynet.com/community/viewtopic.php?p=292911&hilit=external+wall+insulation#p292911

I wonder if anyone else has done it in the meanwhile and has some feedback?