Basement Waterproofing

Maclennan design and install basement waterproofing systems which comply with British Standard BS8102 2009 and all insurance company and local authority requirements.

Basements are one of the most critical areas of construction and conversions. Failures in the waterproofing system can be disastrous and expensive to remedy.

Waterproofing has to be carried out by specialist professionals to ensure a trouble free contract. Waterproofing design should be carried out by qualified experienced contractors and not manufacturers. Manufacturers may give design advice and details but will not accept any liability for the installation.

Maclennan design and install waterproofing using the best and most suitable system available for each project. All work is covered by 10 Million PI and Products insurance which covers all aspects of the work.

Technical Data By Construction Type

Reinforced Concrete

Reinforced Concrete

Construction Type Data sheets

Concrete Formwork

Concrete Formwork

Construction Type Data sheets

Concrete Block

Concrete Block

Construction Type Data sheets

Get in touch with our team today!

Contact Us

Why choose Maclennan for your
basement waterproofing?


Effective and economical basement waterproofing solutions.


What you see is what you get: we value our relationships with our clients, which is why we are always honest and transparent about the service we provide.


Recognised basement waterproofing specialists.


MacLennan provide all of the detailing, data sheets, technical documentation , site supervision, Quality Control and finally guarantees and home owners pack.


We guarantee our work with insured warranties.


Our experienced team of specialists ensure that every aspect of the project will be managed and quality assured.

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


New basement waterproofing failures are normally down to poor design and installation by non-specialist contractors.

Maclennan basement waterproofing design and installation is the best way to avoid liability and leaks. Maclennan have been experts in designing, installing and guaranteeing systems for over 30 years. Our design department work directly from drawings in auto cad or PDF and our trained, experienced waterproofing technicians then install the system according to the design.

What are the main causes of
water in the basement?

Poor Design1

Poor design of waterproofing.

Damaged Waterproofing1

Failed or damaged external orintegral waterproofing.

Poor Detailing1

Poor detailing of waterproofing.


Failed or blocked external drainage.


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

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, hundreds of multi million pound high end residential properties in London and across the UK.

Safe Contractorx
Full 4th May 2010 06 22 42 Gpi Logo E1443710209909x
Safe 4 Sitex

Get in touch!

Ready to start a project or require more information about us?
Call us about your project or problem and we will be happy to help.

Call us today on:

0845 658 7777
Or email us here