Basement Waterproofing

As an independent company, we can choose the appropriate products to suit the large variety of properties we are called on to waterproof.

MacLennan design, supply, and install waterproofing systems across London and the rest of the UK that comply with BS8102 and all third party warranty provider's requirements.

We can save money and protect clients with expert basement waterproofing design.

The following pages will set out your options for combining systems for the type of basement construction you are considering.

To comply with British Standard BS8102 and Third-party warranty providers you need to work with a CSSW qualified design team with suitable experience. MacLennan work with many of the market leading engineering and architecture practices in the UK to design best practice, best value guaranteed basement solutions.

The waterproofing design team

What are you looking to waterproof?

New Builds

A new build residential structure or basement of any construction & size

Concrete & Deck

Concrete decks above basements or flat roofs

Leaks & Floods

Solutions for leaking, flooding or cracked below ground structures / basements

Commercial Buildings

Hotels, Office blocks, Stadiums, Carparks & Multi story basements

Historic Structures & Basement Conversions

A basement / cellar conversion under an existing property

Gas Proofing

Gas proof your basement to prevent Radon, Methane, Carbon Dioxide and any other ground gases.

Get in touch with our technical team today!

MacLennan have been experts in designing, installing, and guaranteeing systems for over 30 years.

Waterproofing systems designed and installed by MacLennan are covered by £10 million PI.

MacLennan work with main contractors and developers to deliver projects under the latest HSE regulations, on time and fully guaranteed using our own fully employed, experienced and qualified workforce of waterproofing technicians.

It’s important that your waterproofing solution is BS8102 compliant. Read our BS8102 Guidance for Compliance.

Environmental Policy

MacLennan strive to source our materials from the most sustainable sources possible and participate in pioneering recycling schemes.

As a company that designs, supplies and installs waterproofing, our supply chain is shorter than most and we consciously select the best products for resilience.

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!

In need of a quick spec?

Your details

Project Details

Why should I work with MacLennan?

WE’RE INDEPENDENT

We Design, supply and install. There's no split responsibility with MacLennan.

WE’RE PASSIONATE

MacLennan live and breathe waterproofing, have a look at one of our free CPD seminars and find out!

WE’RE GUARANTEED

MacLennan has the most comprehensive guarantees and insurances in the industry.

What are the main causes of water in the basement?

Poor design of waterproofing.

Poor detailing of waterproofing.

Changed external environment, ie water extraction, leaking mains water, etc.

Failed or blocked external drainage.

Failed or damaged external or internal waterproofing.

Related Projects

We have been entrusted with significant contracts such as The Houses of Parliament, Kia Oval, Olympic Park Media Centre, Hilton Hotels, Barratt Homes Head offices and hundreds of high end residential properties.