Sovereign approved

Sovereign LogoHere at Troughtons Builders we are Sovereign approved contractors. This means that we are able to carry out damp proofing, tanking, and timber treatment work with insurance backed guarantees to give you extra peace of mind.

We can provide damp proofing works, chemical injection, tanking systems, timber preservation, wet and dry rot removal, and structural assessments; and all to the highest Sovereign approved standards.

As a Sovereign approved contractor we use a range of the highest quality damp proofing products for installing a damp proof course in masonry walls. We also offer a surface applied damp proof membrane for floors, and we make good use of Sovereign’s most popular damp proofing product, Injection Cream, which is a new development in damp proofing that is much easier to install than traditional techniques.

All of the Sovereign damp proofing products for masonry that we use in our work are independently tested and approved by the BBA (British Board of Agrément).

If you are purchasing a house we can also provide a damp proof report to ensure you are fully in the picture and there are no post-purchase surprises.

Please also see our pages on Sovereign approved damp proofing and Sovereign approved tanking systems.


  • Renovation Great Langdale

    Jim Troughton has done various jobs for me over the last 12 years, commercial and domestic, including two major bathroom renovations. I've always found him to be totally professional and very competent. All jobs were completed on time and to budget and the quality of work is exceptional. Jim has employed the same small team of quality tradesmen for many years, which means you can be confident of getting the same high standard of work on every job. Jim is happy to take charge of the whole project, leaving the customer with the peace of mind to know that the job will be done properly and the site returned to the customer in a clean and tidy condition – very important in Cumbria where the job may be a holiday home where the owner cannot be on site continuously. I am currently undertaking a major bungalow renovation and I had no hesitation once again in trusting Jim and his team to do the work.
    Terry Graham, Great Langdale