Waterproofing Leaking Lift Pits And Elevator Pits

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Singapore Waterproofing specialise in waterproofing all types of pits, shafts, lift & escalator pits. It doesn’t matter if they are constructed from concrete, brick or concrete blocks. We can waterproof lift pits that are 100 years old, 50 years old or just 5 weeks old. We have tried and tested, proven solutions for them all.

There can be many reasons why water enters a pit. Usually the reasons are a mixture of the following:

  • No tanking or waterproofing system installed
  • The existing waterproofing system has been incorrectly applied or damaged during construction
  • The pit is too old for any effective waterproofing system to have been originally installed
  • Adjacent construction has altered or redirected the local water table
  • A nearby water main has burst or drainage has blocked increasing ground water pressure
  • The time of year wet weather can increase the water table higher than the water proofing


The typical systems we use for this type of work are:

  • Dual component Polyurea resins
  • Dual component epoxy resins
  • Natural cement based render & waterproof grout technology, which is an environmentally friendly, fast setting, high early strength concrete repair material that starts to set in 35 minutes.
  • Reactive single component hydrophobic polyurethane
  • Our specifications usually involve a mixture of systems. This is dependent on the construction and extent of the problem.

Power Coatings waterproofing specifications are designed to form a permanent waterproof seal around the earth retaining side of the lift pit walls (positive side) or within the actual construction of the lift pit (negative pressure side).

These specialist repairs are carried out without any major disruption or dismantling of the lift mechanism. Ultimately this means less inconvenience, down time and cost to the client.

We install waterproofing systems to lift pits and escalator pits that are of any age. We have repaired and waterproofed buildings from new builds up to buildings of 100 yrs. old.

We carry out lift pit repairs to hotels, large company headquarters, commercial units, factories, schools, hospitals, large houses, sheltered housing schemes and care homes. We also recognise the problems that can be created when working in sensitive environments. We work with our client and our H and S team to ensure that the works we carry out are done so with minimum disruption.

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