Waterproofing Lift Pits

Leaking Lift Pits

At Property Preservation Systems we specialise in waterproofing lift pits and other below ground structures. Collectively we have access to every type of  waterproofing system available.

Using our different systems we are able to carry out waterproofing works to lift pits in several ways (dependant on the construction). One system is to carry out a ‘Curtain Injection’ using special hydro-structure resins to form a highly flexible waterproof barrier outside the construction, from the inside, without the need for excavation. This seals and prevents any further water ingression and this technology is primarily used in the tunnelling industry.

Depending on the type of construction water can enter a lift pit though several ways

• If the lift pit is constructed from concrete (i.e. poured concrete walls in shuttering) there will more than likely be a construction or ‘kicker joint’ where a weakness is introduced during concrete pouring. Water can enter through this weak point. If there are any other cracks or imperfections in the concrete walls or base, water may enter through these weak points also.
• Another form of lift pit construction is a traditional brick or concrete block built pit, where the wall acts as the earth retaining structure. Ground water may enter through any weak points in the brick or blockwork, particularly the wall / floor joint.
• A very common method of construction on newer buildings is to have the lift pit formed from mass poured concrete (usually as part of the foundations etc.) and to have a concrete block or brick inner face built.

So if you have a problem with leaking construction or kicker joints, expansion joints or cracks in concrete that need sealing and repairing, we have the latest technology to solve them all.

To sum up, if there is ground water ingressing into a lift pit (or any below ground structure for that matter), Property Preservation Systems have a solution for you.

Get further advice on your leaking lift pit