Here is another question asked by a member of the public relating to dampproofing. We hope that it and the answer which we include below are useful.

My utility area, 3 rooms behind the kitchen ( including a cloakroom) have damp problems. I have been told it's all rising damp. A dpc drilled and injected about 12 years ago failed and it will have to be done again.

I had 2 quotes  of about £4700.00 each to inject all internal and external walls and tank all internal walls floor to ceiling. The cost element for injection alone is about £1000 in each of those quotes.

I have found on your web site the DIY dpc solutions with low pressure application. If I purchase your products, I could do the injection job for about £100, a big difference in price.

How does this compare to the 'professional' applied high pressure injection. Are the chemicals different? Do they go deeper and further through the bricks? Will your solution perform  just as well? I am concerned about costs but not to the point where I have to do the job again a year later.

Can you please advise?

Our answer:

First I would say that the products we offer arethe same as those used by professionals who we also supply. The use of Injection Cream is the next generation of products after pressure impregnation. If you look at our dampprofing page and read thorugh the product information you will see what is involved. Providing you follow the instructions you should be able to achieve the same results as those that you have been quoted for. If you require more information you can call our team on 0116 2301955 who will be happy to talk through tecnical issues and let you know what you will need in order to undertake a professional, thorough job.

If you have a question, that you'd like us to answer, please email John Oxley: john@constructionchemicals.co.uk

Construction Chemaicals offer a free 'Ask John' service and he will be happy to answer any questions you have.