The MacLennan cavity drain system is an internal lining system which provides a cavity through which water will pass. The system consists of .....

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

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POLYPRUFE┬áis being reconised internationally as the ultimate coating for Decks,  Green and Brown Roofs, Asphalt, Timber roofs...

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A bund is a liquid containment facility that contains leaks and spillage from tanks and pipes. Frequently, the liquids in tanks and pipes are toxic..

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Maclennan Waterproofing


Maclennan Waterproofing has been involved in all aspects of Basement waterproofing for the past 30 years. In this time we have earned a reputation for supplying an honest, reliable and professional service. Being an independent company enables us to use only high quality products appropriate for the large variety of properties we are called upon to waterproof.

We design and install for New Build and Remedial and are approved installers of most manufacturers waterproofing systems.

  • Internal Cavity Drainage system.
  • Externally applied membrane system.
  • Complete flood control systems for above and below ground.
  • Applied membrane deck waterproofing.
  • Injected resin leak stopping systems.
  • Basement Conversions.
  • Gas Membrane.
  • Cement Render/ Slurry.

We train all staff in-house and do not use sub-contractors for basement waterproofing . If it needs waterproofing we know the best system for the job and we are qualified to design and install it for you! Maclennan design bespoke Waterproof and Tanking systems. We offer the best solution what ever the job requirements.

  • MacLennan takes the risk out of waterproofing.
  • MacLennan accepts full design liability for every installation.
  • MacLennan staff are trained, experienced, conscientious experts and undertake regular training courses in Health and Safety and the services that they provided.
  • MacLennan surveyors and waterproofing technicians have all passed examinations at the British School of Waterproofing for the requirement and installation of underground waterproofing systems.

5. Options.