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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Building Questions >> Injecting DPC https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1245949784 Message started by Zambezi on Jun 25^th, 2009, 6:09pm

Title: Injecting DPC
Post by Zambezi on Jun 25^th, 2009, 6:09pm

Has anybody tried to DIY injection damp proofing? There are loads of systems on the market. Depending on who you ask, they are either a waste of money/con or really good :-?
Somebody I know has a damp problem in a Victorian semi (mainly because it has no DPC).

Title: Re: Injecting DPC
Post by woodsmith on Jun 25^th, 2009, 6:22pm

I did one years ago, worked OK, at least we didn't get any damp.

Its effectiveness does depend on the wall construction and the type of brick, some bricks won't take up the fluid so well.

I'd consider doing it for myself again but I wouldn't do it for anyone else, it's a specialist job really, especially if you are going to give a guarantee.

Title: Re: Injecting DPC
Post by Zambezi on Jun 25^th, 2009, 6:59pm

Thanx WS.
They are trying to do it cheaply because they want to sell the place and are not too worried about guarantees etc. I will Google it later and see what is available and put the ball back in their court.

Title: Re: Injecting DPC
Post by woodsmith on Jun 25^th, 2009, 7:32pm

I just went to a hire centre and hired the compressor and bought a big drum of treatment from them

Title: Re: Injecting DPC
Post by TIMBA-WOLF on Jun 26^th, 2009, 7:05pm

th actual fluid used makes a difference as well... and having used the stuff on a few occasions now, Palace Chemicals , Liquid DPC is really good stuff........

Title: Re: Injecting DPC
Post by londonman on Jul 11^th, 2009, 4:01pm

I had my walls done by Mercian and they used a waxy type substance rather than liquid - which to my simple brain will just run away to nowhere. The initial injection only managed to make it as far as the inner wall and didn't actually get to the external wall and so after we'd painted outside, damp started to come through.

I always judge a company on how they react to a problem and Mercian were tops. They came out and did the external wall foc (I paid for the material which would have got used in the first place) and the damp has gone.