• Deck & Joint Waterproofing

    Deck & Joint Waterproofing

     Wembley Stadium 

  • Basement Waterproofing

    Basement Waterproofing 

     The Houses of Parliament 

  • Waterproofing Experts

    Waterproofing Experts

     The Design Team 

  • Basement Waterproofing

    Basement Waterproofing

     Wentworth, Surrey 

  • Cavity Drain Waterproofing

    Cavity Drain Waterproofing

     Caring Wood - RIBA house of the year 2017  



As an independent company, we can choose the appropriate products to any project we are called on to waterproof.

Deck Wateproofing

Deck Waterproofing

Polyurea is being recognised internationally as the ultimate coating system for roofs, basements, bunds, steels and tank linings.

Damp Proofing

Damp Proofing

No single solution fits all. We use the most suitable method of damp proofing for each individual case.

Waterproofing Basements

Basement Waterproofing

MacLennan design and install new build basement waterproofing systems which comply with the New British Standard BS8102 2009.



MacLennan are experts at many forms of structural repairs including Masonry repairs and Timber repairs.

Technical Data

Technical Data

Ranging from Data sheets, 3D Details, NBS details and more, MacLennan provide a vast array of technical data for building industry professionals to use.


MacLennan Waterproofing

MacLennan have been guaranteeing work for over 30 years in London and across the UK. We have built up a reputation for supplying an honest and professional service.

As an independent company, we can choose the appropriate products to suit the large variety of properties we are called on to survey and specify work for. We design supply and install waterproofing systems.

Our services include:

Quick Spec

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In need of a specification for a project?

Upload your plans and a brief description of the project and a member of our team will get in touch!

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Project Details



Safe Contractor Approved
ISO Registered
Safe 4 Site Gold
Builders Profile
Contractors Health And Safety
British Board of Agrement

Contact us

MacLennan Waterproofing

Head Office
Field Farm,
Porton Road, Porton,
Salisbury, Wiltshire,

0845 658 7777

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