• We Design Waterproofing


    No Split Responsibility.



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

CPD Seminars

CPD Seminars

MacLennan offer a free 1 hour CPD Seminar on Waterproofing Design and Installation. Benefit from MacLennan’s years of experience.

Damp Proofing

Damp Proofing

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

Our Projects

Our Projects

A Range of case studies on MacLennan projects, including technical data, methodology and what benefitted each project.


Helical Repairs

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

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

Contact us

MacLennan Waterproofing

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

0845 658 7777

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Recent Tweets

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