A blog post

European Damp Proofing System: An Independent Technical Review

Posted on the 18 August, 2010 at 10:54 am Written by in Blog, Damp

At Premier Heritage we see many different kinds of damp proofing systems installed in properties. The document link below is to an independent review of a European system of damp proofing that we have  now seen being fitted into properties in the United Kingdom.

The document is a must read for fellow damp professionals as well as  members of the public considering the installation of a damp proofing system.

European Damp proofing system

A European damp proofing system


A Review of an Environmentally Driven Damp-Proofing System


some comments

There are currently 19 of them
  1. Nick 20 August 2010 at 8:09 am permalink

    I’ve seen this system fitted to several properties; their literature claims it’s the ‘Master cure for all forms of dampness’ and that you don’t need to re-plaster the walls. So, assuming the property has a genuine rising damp problem with damaged decorations and salt contaminated plaster, how does the master cure resolve this, it won’t!

    Also seen it fitted to listed buildings, shouldn’t be done, as firstly, it would probably need LBC and secondly probably wouldn’t be approved.

    As for curing condensation ………….. Laughable.

    Nick Jenkins

  2. PC 28 August 2010 at 3:38 pm permalink

    Hi Nick,

    Good point on the plastering etc there’s no mention of this on the web sites!

    Several Conservation Officers I work with have already indicated that the system wouldn’t be approved if permission were sort for its installation and one is trying to get it removed from a building where it was fitted without permission; they’re ugly looking things and will obviously ruin the aesthetic appearance of a building, look at the 18th Century Listed building in the picture above, lime rendered!!


  3. Eric 1 September 2010 at 2:18 pm permalink

    A couple of points:
    1, If your property is already damp, then re-plastering is of course necessary. Seems the wording of the literature needs re-phrasing to take this into account.
    2, LBC approval notwithstanding, what about the thousands of old properties that have benefitted from this method which is used, I believe, by a company called Holland Damp Proofing. I googled them and they seem genuinely green and clued-up, unlike some of the chemical-injection cowboys I’ve experience of!
    3, Talking of ugly, what’s uglier than studs pressed into Accrington bricks?

  4. PC 11 September 2010 at 5:08 pm permalink

    Hi Eric,

    In response to your recent email

    (1) I would confirm that the advertising for the ‘Green’ Damp Proofing System is very misleading. If being installed because the property has (genuine) rising damp problem, then I’m guessing that the decorations would probably be spoilt and the plaster contaminated with ground salts, which would normally require some degree of replastering as part of the overall damp proofing process.

    However the advertising states no plastering and installed with no fuss and mess!

    (2) Can’t comment on the efficacy of the system in the thousands of properties you mention, although on those I have personally been involved with the clients eventually got their money back (as per the guarantee claim. In these particular cases the system wasn’t doing what it claimed the system would do…… i.e. remove, control, get rid of, or eradicate the dampness for which they were installed!

    (3) I’m in total agreement, but I guess you can easily remove the plastic plugs and make good?


  5. Nick 23 March 2011 at 1:52 pm permalink

    I have spoken to one of the top guys in the country about these systems and he advised me to stay well clear of these systems. one thing is how do you treat a party wall?

  6. Paul 20 April 2011 at 7:39 pm permalink

    Any idea of price for this system

  7. andy 15 January 2012 at 2:30 pm permalink

    I had the system fitted and it the job, had some rising damp and condensation, had an extractor fitted in the bathroom to assist with the condensation and all is now cured.

  8. rob 4 February 2012 at 2:25 pm permalink

    prices vary depending on properties & the size of the job.Also the system does not guarantee on any internal walls only perimeter walls are guranteed. i have had my home treated by Holland damp Proofing & the system is brilliant.The units create a cold spot on the wall just above ground floor level which then attracts moisture the natural air then dying out the walls.My home is rendered & i have painted the units so they arent noticeable & who cares what they look look if my walls arent ndamp & mouldy

  9. tony 24 February 2012 at 8:54 am permalink

    They charge roughly twice what my london based damp proofing firm do. my quote was £545 whilst holland damp proofing was £1300

    I have done 8 jobs now which had all been done with the holland damp proofing system in croydon, some for rising damp some for condensation they had all failed or not worked.

    The reports/survey are not carried out by qualifed surveyors they are just salemen, you dont get a damp report you just get a quote.

    What about internal walls, how can airbricks thats installed only on the external walls dry out the internal walls? magic

    how can these airbricks resolve condensation if the bathroom is tiled vapour will not travel throught the walls, would it not be cheaper to put in a good extractor fan

  10. Pete 27 March 2012 at 5:02 pm permalink

    I see these installed all over the place and they never work. You have missed one vital piece of information… the bricks are installed using….. CEMENT…! No moisture can get through the cement into the brick anyway – it is complete fraud.

  11. N Slater 30 March 2012 at 5:49 pm permalink

    Had this system fitted 17mths ago, bought a damp meter and checked the wall conditions, maybe not the right damp meter but so long as the meter stays the same then the readings are meaningful,something that the guy from Holland cant agree on. We had the system installed because we were told that it would solve our damp problems which we now find out but were not told about at the time are nothing to do with the walls but are due to internal condensation. The Rep assured us it would cure our problem and on that basis we agreed to the installation but obviously we were not told either the truth or the real issue. We never did have rising damp and the DPC is intact. My advice is to stay clear unless you are qualified enough to sort out the good points from the bad.

  12. elizabeth 12 August 2012 at 4:17 pm permalink

    Victorian semi, next door have Holland damp proofing and are not happy with it, so what solution have Holland come up with? come next door and blame my house!They have concrete floors I have suspended laminate floors, I have had to pay my builder to come and lift a section of the floor near party wall. Timbers dry, ground underneath dry but party wall damp at ground level (next door have a damp patch roughly 2ft x 2 ft.above skirting on the party wall, I have a tiny yellowing spot approx 2 inches across.Thames water are coming out on the 29th as Holland think we may have a leaking water pipe undeerneath our house which is affecting next door!!its a free service so we will wait and see the outcome. Any comments?

  13. mike 15 October 2012 at 1:07 pm permalink

    been doin damp proofing for seven years now. Mainly chemical injection. Last year see a job advertised for holland damp proofing. So went for it thinking it was just a normal damp proofing company. But they werent. All the ‘ surveyors’ are just salesman from bt and such.and most of the customers were very elderly people who beleived the crap they came out with. Blamed neighbours and drains and leaks. Stuff they should have noticed when surveyin it. No one workin there has a clue about damp. Left after six months as didnt wanna be part of connin mostly lovely widowed old ladys. Never use them.

  14. Clare 3 May 2013 at 2:48 pm permalink

    I completely agree with the above – they convinced us that they could solve all of our damp proofing problems but only succeeded in making it much worse – now we have to pay alot of money to repair the walls with replastering and their only response is to say it will cost £100 to come out and look at the problem.

    I would avoid them like the plague.

  15. Yvonne 3 November 2013 at 9:42 am permalink

    Hi all,

    We had Holland put in system 2 years ago and damp as bad as ever. Last year was so wet that we thought that was why it was taking longer to dry. Then the summer was so dry all seemed to be working so we decorated and were happy.UNTIL!!! the weather turned now walls are actually wet and mouldy. We paid just under £3,000 for this and have just come across all the reviews. I’m gutted cant even get hold of them. Gutted now were going have to pay god knows what to rectorfy

  16. PC 4 November 2013 at 5:49 pm permalink


    Sorry to hear your bad news. Unfortunately I am led to believe that Holland in their original guise have gone bust, although are reported to still trading under a different name. Incidentally how old is your house and what did they treat it for?


  17. John 14 May 2015 at 7:28 pm permalink

    Hi All,
    I had Holland Damp proof fitted in 2009. Had them back about 12 months later as was not happy with the damp around the property. Was assured it will get better. Just had the property surveyed for re-mortgage and have to have damp proofing done the convential way. I Paid Holland Damp proof just over £2,500. I am being told the so called surveyors was just salesman and the company in my opinion was just a con. John

  18. Anthony monk 2 January 2019 at 7:23 pm permalink

    I am a, now retired, fully qualitied environmental health officer. After 4 years training I cut my teeth on numerous damp and otherwise unfit houses. I was well aware of the need for removing and applying new plaster to affected areas and the reasons for it. Was this product invented by a member of Merlin the magician. Carebrick UK sent me a brochure for a product similar to that described above and this contained a photo of classic high level condensation being sprayed, presumably with some “damp proofing” chemical. I don’t know what the photo was trying to imply but I do know that consumers need sharp teeth protection from misleading adverts. Has anyone from the trade not reported the firms concerned>? If not, why not?

  19. Jean Grey 6 July 2019 at 4:32 pm permalink

    Hi, I had the Holland Damp Proofing system done in 2006 and it hasn’t worked. I’ve had the inside replastered and now having the outside re-rendered. The builder wants to know if he can cut off the Holland brick part that sticks out and fill it in before re rendering the house. Can anyone provide some advice please? The house is solid brick with render which is being removed as cracked and re done. It has had several damp courses done over the years but nothing has helped so after having it re painted twice I’m having the render fixed.