Do I need party wall consent for damp proof work to be done?

[Magenta999]

Hello, I need a damp proof course added to practically the whole ground floor of my house. It's a 1920s mid terrace. Do I need the neighbours permission to carry this out?

Who told you that you need a damp proof course? Seriously, they are a waste of time and money and don't even work. My DH is a chartered surveyor and even the RICS think they are pointless. So called damp surveyors are just sales men who will always recommend a damp course, but try claiming on their warranty and the company will say it is condensation or water ingress. Think carefully before wasting your money.

I have a 200yr old cottage and my RICS surveyor said I would have to have a dpc injected (terraced) when I bought it. I didn't get a party wall agreement. The warranty lasts for 20yrs but I won't lie, I have had failure issues and damp patches appearing. The company who did the work came out and re did it all again 6 months ago (it was originally done in October 2018). Touch wood, it seems to be okay now. In hindsight, I wish I'd never bought the house because of the damp.

@fairydustandpixies did the damp come up in the survey when you bought the house? Is the damp really obvious in your home? I'm asking because we moved into an Edwardian end of terrace last year. Nothing camp up on the valuation, yet I can clearly see damp patches under the windows and on the party wall in the kitchen. We accepted that houses of this age, with wooden framed sash windows, are always going to have some damp. It's not black or mouldy, so we aren't highly concerned. The house, however, isn't for me so we are planning to sell up next year. We are considering getting the damp treated beforehand though could just paint over it too. How much have you been quoted?

Party wall in the kitchen?

I'd start by looking for a plumbing leak.

The UK is the only country obsessed with injection damp proofing, despite the fact it doesn't work. Houses from centuries past worked perfectly well without them. Damp is either water ingress or condensation.