Newseal Ltd

Damp probl​em no problem.


Welcome to our Website!

Newseal is a specialist timber and damp company based in Truro Cornwall dealing with woodworm, dry rot, rising damp, cavity wall tie replacement and structural repair. 

We can offer a specialist damp and timber report and we are a family run business that has been established for over 16 years. 

Our surveyor is fully qualified and has gained the CSRT qualification(Certificated Surveyor in Remedial Treatments) through the Property Care Association PCA on their rigorous training course. Our surveyor has also an in depth knowledge of HELICAL SYSTEMS structural reinforcement systems.

Whether you require a specialist timber and damp report in Cornwall or dry rot treatment and woodworm treatment in Truro, Perranporth or Penzance or damp proofing and basement waterproofing in Padstow, Newquay, St Austell, Bodmin, Wadebridge, Falmouth, Helston, Launceston or Looe Click here to contact our experts now for a no obligation quotation.

Our chemical treatments carry our own 20 year guarantee which can also be complemented with an independent 10 year insurance guarantee issued by Guarantee Protection Insurance Ltd GPI

Newseal is the premiere choice for woodworm control, basement cellar waterproofing and damp proofing throughout Cornwall.

Contact Newseal for a fixed price on dry rot treatments in Truro Cornwall.

We are specialists in crack stitching, masonry beaming, bowing walls and remedial cavity wall tie replacement. We also install Helical piles and quick base foundation systems for use with domestic conservatories and other single storey structures covering Cornwall and Devon.

We carry out Timber and Damp surveys of buildings in Cornwall. We can also inspect sub floor and confined areas with the aid of a modern imaging camera without the need to remove floor boards ect.

We work for many local estate agents, home owners, housing associations, local builders right through to working with Cornwall Housing which is a testament to the quality of our services.

We offer a comprehensive survey along with a timber and damp report to estate agents and housing associations. (Professional fees apply to pre-purchase or selling surveys and reports for housing associations including landlords and for local authority grant applications). 



Woodworm treatment
Dry rot treatment
Condensation control
Structural repair
Cavity wall tie replacement
Penetrating damp
Damp Proofing
Tanking Specialist
Basement tanking
Flood Restoration

We are members of the Property Care Association PCA

and also members of the BWPDA British wood preservation 

and damp proofing association.

Our reports are comprehensive and are recognised by all major building societies for mortgage purposes. We will arrange an inspection of the property and issue a full comprehensive report, complete with a quotation to rectify any defects that may be apparent. Please contact our office for further information, either by 

telephone on 01872271615 or CLICK THIS LINK to email us

We are also a TrustMark registered company.​
Trustmark register only Local, trustworthy & reliable tradesmen, operating to Government endorsed standards.
We also offer specialised structural reinforcement installations. This type of work involves the installation of the Helical systems structural re-inforcement systems for the strengthening of cracked masonry and timber structures. The installation of new stainless steel cavity wall ties can also be carried out in conjunction with or without the HeliTie System. We are Helical Systems approved contractors for this system, which is a combination of fixing and tying together of components to provide a cost effective structural repair. Whether you require crack repairs in:
Truro, Penzance, Newquay, St Austell, Bodmin, Wadebridge, Falmouth, Helston, Launceston or Looe we can help please contact us for a hassle free no obligation inspection.
Our main treatments are for the eradication of woodworm and dry rot and to carry out any associated building works to complete the treatment effectively. We also carry out damp-proofing installations to eradicate rising damp.
Our own fully NVQ qualified plasterers can replaster any areas required after damp-proofing with specialist plastering techniques, to include basement waterproofing (tanking).
We are also contractors for the Newton Cavity Drain membrane systems which is a water management system for areas of very high water contents.
We cover the following areas in Cornwall and Devon



NEWSEAL Ltd are members of Guarantee Protection Insurance Ltd. We can offer fully insured guarantees against all treatments carried out by the company. An insured guarantee is backed by an insurance certificate and policy specific to your property for a 10 year period, issued by a UK based insurance company which is authorised and regulated by the Financial Services Authority.