• Cavity Membrane
    This extremely effective system utilises an ‘egg box’ style design.
  • Concrete Repair
    We have processes to prevent damp or
    water penetrating walls.
  • Tam Injections
    Harrison Waterproofing are authorised
    TAM injection repair specialists.
  • Waterproofing
    With a CDM system any moisture
    is allowed to pass through
    the masonry.
  • Rising Damp
    This is an aspect of home ownership that affects millions of properties in the UK.
  • Epoxy Resin
    One of our fail-safe techniques is the use of Epoxy Resin Repair.

Harrison Waterproofing are specialists in Structural Waterproofing, Damproofing and Timber Preservation with 32 years of industry experience.

We operate right across London and South East of England. Covering London home counties, Norfolk, Suffolk, Essex, Kent, Surrey, Hertfordshire, Bedfordshire and Cambridgeshire.

Our services include Waterproofing, Damproofing, Concrete Repair, Gunite Lining, Epoxy Resin Repairs, Wet & Dry Rot, and Timber Treatment.

We are full members of BWPDA and the PCA since 1995 , we are recommended by the leading manufactures in our industry; Sika, Delta, Triton, RIW, Koster, Rotafix, Vandex, Oldroyd and Grace.

Our customer base includes main building contractors, architects, The Royal Palaces and English Heritage. We provide a comprehensive on-site report, fully documented cost estimates and apply the latest systems and technology for peace of mind.

Our Services

Cavity Membrane

This extremely effective system utilises an ‘egg box’ style design, cavity drainage membrane. The membrane allows any water penetrating through the fabric of the building, to flow in a controlled manner behind the final wall covering, into concealed irrigation channels and thereafter into a sump. The water is then pumped into standard drainage.

Concrete Repair

Concrete Repair, or ‘tanking’, are terms that describe a process used to prevent damp or water penetrating walls. It is therefore frequently the technique chosen for basements, lift pits and swimming pools. This is true for both new build and existing structures. Tthis is an area of work where we believe we have unparalleled experience.

Dry & Wet Rot

Wet Rot is a relatively common occurrence and can usually be dealt with by removing the source of dampness. However, the true Dry Rot fungus (Serpula lacrymans) is serious and requires immediate attention to avoid extensive damage. It is malignant and will spread even through thick walls in search of timber to attack.

Epoxy Resin

During the last 26 years Harrison Preservation Ltd. has developed a range of tools and techniques that enable us to confidently tackle almost every type of timber problem. Where faced with joist end decay on major or bressumer timbers, that are required to be retained, one of our fail-safe techniques is the use of Epoxy Resin Repair.

Rising Damp

This is a aspect of home ownership that affects millions of properties in the UK. As a result, over the last 26 years, we have installed and guaranteed damp proofing in over ten thousand domestic homes. A prime factor is that our housing requirements have changed significantly from the days before fridges became commonplace, c1960.

Tam Injections

At Harrison Waterproofing, as long time, authorised TAM injection repair specialists, we’ve successfully repaired water leakage in basements, lift pits, concrete and brick tunnels, bridges, concrete reservoirs, multistory car parks and shafts.

Waterproofing

Where the water pressure is particularly high, where noise and dust are likely to cause concern or where it’s required to retain the existing features of a building, we generally recommend a Cavity Drain Membrane (CDM) system, to control damp or water ingress. With a CDM system any moisture is allowed to pass through the masonry.

Woodworm

All of these factors will ultimately influence the type of treatment carried out. For this reason our Surveyor will visit to investigate the affected areas. Based on their experienced analysis, we will then select the most appropriate treatment such as insecticide, fungal decay eradication, traditional or resin repair.

What Our Customers Say

Colin Robinson
Cost Manager - Byrne Group

The quality provided by Harrison Waterproofing has generally been of a very high standard in terms of quality of product and the service provided. I trust that this gives you a good insight into this unique company in comparison to the competitors whom I have encountered.

Keith Kirby
Contracts Manager - Ellmer Ltd

Harrisons Waterproofing have a very proactive approach in their method of works and are always contactable to help and advise. We would be more than happy to offer our reference and are currently working with Harrison’s on similar projects.
 

Credentials

We have been members of the eighty year old British Wood Preserving & Damp-proofing Association (BWPDA), Britain’s governing organisation for this type of work, for over two decades.

We are also full members of the prestigious UK national Property Care Association (PCA).