Do these "surveyors" happen to work for companies that sell chemical injection?
There aren't many houses left that were built without a DPC, and chemicals will not cure water leaks. Neither will they ventilate subfloors whose airbricks are blocked.
We had another poster recently who dug out the damp material under his hearth so the area could be ventilated and dry out.
There’s deffo no water leaks from any pipe works under the floor in that area as none run along that side nor in their house and doesn’t appear to be any damp patches on the floor underneath (we have suspended floors) and some sort of concrete base where we worked.
next door on the party wall have no damp issues there side either.
The company is a family run business and there surveyours are in house and do all sorts off work not just Damp related stuff, very good reviews on check a trade, that’s as much as I know for the company. I did get two quotes and both said rising damp - chemical DPC. One wanted over 2k and the 2nd no where near that price and issue a 20 year warranty.
The airbricks ain’t blocked and there have been extra ones put in many years ago to allow increased ventilation (the only issue I know previously from a burst pipe from the neighbour they had to get the wood treated? There’s prob more but he denied any knowledge, so who knows if his telling porkies or not)
However when changing the floor boards as they were no good we established that 8/10 joists were rotten and had to be replaced as they was just no good. One of the joists run along the old hearth base and was wet most likely from rising damp, we made sure we put new damp course down on the new joists and lay DPC on the hearth bricks as well as removing the wet material off the party wall below what looks like the DPC and it’s still showing the same High readings?
Surly if the company offer a warranty, and I still have wet walls, what actually happens?
Do party walls contain DPC? It’s a 1950s built property.
Thanks in advance