Damp in property

Morning all looking for some advice is there anything on the market that I can inject to my walls that I can do myself to cure the horrible black stains in my property I don't won't to go down the route of hacking of the plaster or hiring a company any advice would be greatly appreciated. Many thanks mark

The first thing you need to do is to establish the cause of the damp and to resolve that problem before you worry about redecorating or repainting

If the damp is not caused by condensation,  then doing anything to the actual wall from inside will only be a temporary fix but will not help long term

Hi the cause to my knowledge is there is no dpc laid at the foundation when the construction was built in the 80s that's why I'm thinking about injecting a silicone based product to stop the rising damp hope this makes sense

Hi the cause to my knowledge is there is no dpc laid at the foundation when the construction was built in the 80s that's why I'm thinking about injecting a silicone based product to stop the rising damp hope this makes sense

Sorry but this maybe a bit confusing  :-

I had that problem with a villa some years ago.

From the outside I drilled half inch diameter holes, every nine inches along the walls, pointing downwards at about  10 degrees,  through the walls just above the inside floor level, to just through the brickwork to the plaster, but not through it .

Then over a couple of weeks, every day,  I 'injected'  a silicone water proofer  (Thompsons)  using a tube, which I withdrew slowly as I poured the water proofer in  with using a funnel, so that I was leaving a deposit throughout the thickness of the wall.  The water proofer soaked into the brickwork of the wall and created a water proof layer.  Like a thick DPC.

The black plasterwork I sprayed with bleach a couple of times then repainted and the problem was solved.

Best of luck.

PS  What I did amounted a DIY process similar to pressurised  waterproofing  but at a fraction of the cost.  I have used the same system in my sons apartment where there was water penetration

Thanks for the advice your solution is something that I will look into some more once again thanks

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