Secure your lift pit against water damage.

Expert waterproofing solutions that protect your lift pit from leaks, corrosion, and costly structural issues. For decades.

Why do lift pits leak?

Underground water leaks are a common problem in Melbourne’s lift pits and elevator shafts due to the city’s varied ground conditions and high water tables. Early detection of these warning signs is crucial to prevent costly repairs and potential elevator downtime.

Underground water pressure

Lift pits are subjected to water pressure from the surrounding soil moisture and groundwater. This pressure forces water through concrete pores, construction joints, and any weak points or failures in the existing waterproofing systems.

Fluctuating water table levels

During wet seasons, groundwater levels can rise due to clay soils trapping water. This creates significant pressure against lift pit walls, leading to water being forced through cracks and weak points.

Concrete water infiltration

Concrete is porous, meaning water can be absorbed through tiny pores, weakening structures and corroding steel reinforcement. Water infiltration can also occur through cracks and around cable conduits and drainage pipes.

Deteriorated waterproofing membrane

Waterproofing membranes deteriorate over time, allowing water to penetrate through the lift pit concrete structure. Melbourne's humid conditions can accelerate membrane breakdown in these confined, poorly ventilated spaces.

Lift pit waterproofing, when installed correctly with quality materials, can last up to 25 years or more. It depends on the type of membrane used, quality of installation, amount of  groundwater hydrostatic pressure, and ongoing maintenance. 

Why you should care

Leaking lift pits can cause serious safety hazards, damage critical equipment, and weaken building structures. Proper waterproofing protects both the lift system and your long-term maintenance budget.

Safety risks

Water in lift pits can cause electrical components and machinery to short-circuit, posing serious safety hazards. Regular waterproofing maintenance prevents accidents and ensures lifts operate safely.

Equipment damage

Lift pit leaks lead to corrosion and premature failure of motors, cables, and hydraulic systems. Repairing or replacing this equipment can be extremely costly and disruptive.

Structural issues

Persistent moisture can weaken the concrete and steel in the lift pit, compromising the integrity of the building structure. Early waterproofing preserves both the lift and the surrounding infrastructure.

Maintenance costs

Water ingress results in frequent repairs and ongoing maintenance expenses. Investing in a proper waterproofing system reduces long-term costs and downtime.

Spot the warning signs

Lift pits are hidden but critical areas of a building or apartment complex. Even small leaks can cause serious damage. Here are the key warning signs that your lift pit waterproofing may have failed.

Standing water or damp patches: Visible water or persistent damp patches in the lift pit indicate that the waterproofing membrane has been compromised. Even small amounts can lead to corrosion and structural damage over time.

Corrosion on metal cmponents: Rust forming on cables, rails, or machinery is a clear sign of moisture ingress. Corrosion not only shortens the lifespan of lift equipment but can also create safety hazards.

Cracked or spalling concrete: Cracks, flaking, or spalling concrete in the pit walls or floor often result from water penetration. These structural issues can worsen quickly if the waterproofing problem isn’t addressed.

Musty odours or mould growth: A musty smell or visible mould indicates that moisture is trapped. This not only signals waterproofing failure but also poses potential health risks to owners and tenants.

Additional signs to watch for: Efflorescence on concrete surfaces, water stains, peeling paint, unusual lift noises, or increased humidity.

The Schaefer solution

Schaefer Waterproofing safeguards lift pits from water ingress. We utilise established, durable waterproofing systems that halt water penetration from within the pit (if the positive side is inaccessible), circumventing expensive excavation and inconvenience.

1.

Assessment and solution design 



We perform a site inspection to identify leaks, structural issues, and vulnerable points in the lift pit. Based on access and conditions, we recommend the most effective negative-side or positive-side waterproofing solution.

2.

Waterproofing system selection


Recommendations are tailored to the pit’s construction, substrate condition, and your budget. Options include polyurethane injection, cementitious membranes, and waterstops designed specifically for lift pit environments.

3.

Surface preparation

Failed membranes, coatings, and debris are removed, and any damaged concrete is repaired or replaced. Surfaces are cleaned and primed to ensure maximum adhesion of the new waterproofing system.

4.

Waterproofing system installation

Our qualified team applies the selected waterproofing system according to manufacturer specifications. Each step is documented with photographs to ensure quality and compliance.

5.

Penetration and detailing

All pipe penetrations, joints, wall-floor and wall-wall junctions are carefully sealed to create a watertight barrier at common entry points for water.

6.

Inspection and testing

The system is inspected to confirm effectiveness, ensuring the lift pit is fully protected. For extra assurance, we offer independent third-party leak detection testing.

7.

Project handover



We manage your project end-to-end and coordinate with other trades. All work is documented with photo evidence and an installation report provided post application.

Concerned about your lift pit leaking? Book a call!

Don’t let water ingress cause costly lift equipment damage, safety hazards, or structural issues. Keep your lift pit safe, dry, and fully protected with Schaefer Waterproofing. Reach out to our team today for a friendly and informative chat.

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