Endorsed by Which?

Trustguard Ltd t/a Trustguard Damp Proofing


65 Reviews

Opening Hours
Today - 08:00–17:00
  • Monday 08:00–17:00
  • Tuesday 08:00–17:00
  • Wednesday 08:00–17:00
  • Thursday 08:00–17:00
  • Friday 08:00–17:00
  • Saturday - Closed
  • Sunday - Closed

Organisations and Awards



We are the North East's professional Building Preservation & Damp Proofing Company. Our Director, Don Cellini, is a PCAQT Qualified Technician with vast experience in all aspects of building & preservation.

Having carried out hundreds of surveys over the years, Don knows the housing stock of the North East 'inside out'.

We offer the following services;

Damp Proofing (Rising Damp & Penetrating Damp)
Woodworm Treatment
Structural Wall Repairs
Roof Renewals & Repairs
Wet Rot & Dry Rot Treatment
Condensation/Black Mould Control
Cavity Wall Tie Replacement
Basement Waterproofing
Extraction of Cavity Wall Insulation

Comprehensive survey reports by our experienced surveyor for Damp, Timber, Wall Ties, Woodworm & Basement Waterproofing.


Mortgage Retention or been let down by another company? Don't worry - with a team of qualified staff, we can usually fit you in at short notice!

Call NOW on 0191 4159471 to book a survey/quote.

What we do

  • Damp proofing and timber preservation services

    • Woodworm treatment
    • Condensation and humidification control
    • Timber treatment services
    • Injection damp courses
  • Plastering

  • Property refurbishment contractors

  • Specialised building trade contractors

  • Builders

  • More Services

    • wall tie replacement
    • cavity wall ties replacement

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

65 reviews
Customer Service
Sort by
Highly recommended - will use again.
Customer Service
I used Don to solve a damp issue at my tenanted flat - his work was fast, efficient and clean - can't fault it. Excellent communicator. Will definitely use again.
morgala Posted on 04/01/2016 , work completed 04/01/2016
The trader replied (on 02/05/2023)
Many thanks for leaving the review
friendly, professional and competative
Customer Service
Don was one of several companies we had out to look at a damp problem we had. He did the most thorough inspection of the traders who came and explained what was wrong, why he came to that conclusion and what needed done. He was friendly, professional and his price was very competative. The work was completed within the time scale he gave and he made sure we were happy with everything before he left. Would definitely use this company again and recommend to others too.
angeline brown Posted on 31/12/2015 , work completed 31/12/2015
The trader replied (on 02/05/2023)
Thanks for the review and recommendation
Trustguard ltd
Customer Service
Don was friendly and professional
giselle Posted on 11/12/2015 , work completed 11/12/2015
The trader replied (on 02/05/2023)
Many thanks for this review
Damp proofing work
Customer Service
They did an exceptional job and we are very pleased with what Don has done. It was done on the day and we've had no issues since.
Mark, Sunderland Posted on 02/03/2015 , work completed 02/03/2015
The trader replied (on 02/05/2023)
Great, thanks for the review
I'd definitely use him again
Customer Service
Don damp poofed a party wall with a membrane and plastered over it, also adding some fittings. I am happy with his work, his response and the quote provided.It's been a long standing problem, which others have tried and failed with. He finished on time and I would definitely use him again
Julie, Chester-le-Street Posted on 15/02/2015 , work completed 15/02/2015
The trader replied (on 02/05/2023)
Thanks for this review and recommendation
Customer Service
We are buying a house and had a suspicion that the cavity wall may be corode, so Don did a specialst survey / inspection for us. We can have no complaints at all.
Lauren, Carlisle Posted on 13/02/2015 , work completed 13/02/2015
The trader replied (on 02/05/2023)
Great, thanks for leaving this review