Tanking in Derbyshire & Nottinghamshire
Tanking in Derbyshire & Nottinghamshire

Below Ground Waterproofing & Tanking Solutions in Derbyshire & Nottingham

Structural waterproofing systems which are sometime also called tanking are used to protect below ground structures from water and dampness.


Whether the property is fully below ground or partially, we can design a system to keep your property dry.


Each property we visit will be given its own waterproofing specification to suit its needs and condition. Our specifications are designed so that they comply with British Standards 8102:2009 and the relevant building regulations.


If you would like a waterproofing survey carrying out in Derbyshire or Nottingham then please call 0115 9304240 or use our contact form.


Qualified Waterproofing Staff


All our waterproofing surveys are carried out by a Certificated Surveyor in Structural Waterproofing (CSSW). The CSSW is a nationally recognised professional qualification for individuals involved in diagnosing problems with water entering structures below ground level and who recommend design solutions.


Any waterproofing works that our company undertakes is always done by a qualified structural waterproofing technician holding the PCAQT (Waterproofing) qualification.

PCA - Basement Waterproofing Leaflet

An information leaflet about structural waterproofing provided by the Property Care Association (PCA)


The Different Types of Waterproofing

There are three types of systems which can be used for structural water proofing defined in BS8102- 2009 “Code of practice for protection of below ground structures against water from the ground”.


Type A = Barrier protection (commonly referred to as Tanking – as the system creates a tank keeping water out) is either applied externally or internally. It relies on an unbroken “monolithic” membrane that will act to keep water out.


Type B = Structural integral protection- where the structure itself (waterproof reinforced concrete) is the protection. When constructing a new basement the use of Waterproof Reinforced Concrete is used to form the structure and floors.


Type C = Drained protection – This system removes water using cavity drain membrane
(CDM) laid over the floors and walls. The system works by directing any water that comes through the earth retaining walls, to internal drains. It is then taken outside using pumps or gravity drains.


We undertake Type A and Type C Works.

Cementitious Tanking System (TYPE A):

Cementitious tanking is used for the protection of structures against water from the ground and which maybe potentially subject to hydrostatic pressure.


Once cured the tanking is impervious to water. This means a suitable finish can be applied on top of the tanking and not be affected by dampness/water penetration.


Cavity Drainage Membrane Systems (TYPE C)

Cavity drainage membranes provide a simple and cost effective solution for dealing with damp and contaminated walls – above and below ground.


When a cavity drainage system is used below ground, suitable drainage must also be incorporated into the system. This will normally be done by including perimeter drainage going to a sump and pump.


Cavity drainage membranes are particularly suited for use in situations where the underlying substrate is too fragile or contaminated to allow the use of traditional water proofing systems, for example: Salt contaminated Walls, Walls contaminated by oil, bitumen, paint etc, walls constructed from soft bricks, stone walls and cob walls.


A number of finishes can be applied to the top of the membranes to suit the needs of the property owner.

Structural Waterproofing Technician of the Year 2018 - PCA Awards

Award Winning Waterproofing Staff.

Derbyshire based CK Walker Damp & Timbers is very proud that one of its employees is the winner of the Property Care Association (PCA) Structural Waterproofing Technician of the Year Award (2018).



Get in Touch

You can contact us by calling 0115 9304240 or 01332 960160 or use our contact form.


Latest Case Studies

CK Walker Damp & Timbers feature in a damp proofing case study by Safeguard Europe.


Read about it here.

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CK Walker Damp & Timbers have been providing: Damp Proofing, Condensation Control, Re-Plastering, fungal decay & Woodworm solutions throughout Derbyshire & Nottingham since 1991. CK Walker LTD trading as CK Walker Damp & Timbers – Company Number 9072842 - Registered Office – Old Church Institute, Main Street, Mapperley, Ilkeston, Derbyshire, DE7 6BY All images and text on this website are protected by copyright. 2017 For all your damp proofing & timber treatment needs in Derbyshire & Nottingham, Call us on 01332 960160, 01629 352019 or 0115 9304240