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Kitchens

Commercial Kitchen Waterproofing Solutions

Commercial and industrial kitchens face intense daily conditions, from constant cleaning to heavy grease and heat exposure, making them highly vulnerable to water leakage. Once moisture penetrates below the floor finish, it can travel into surrounding areas and affect neighbouring units or floors below, leading to operational disruptions and potential compliance issues.

With professional restaurant kitchen waterproofing and reliable commercial kitchen leak repair, these risks can be managed before they escalate into costly damage.

Signs & Causes of Water Leakage in Your Kitchen

If you notice these signs, it’s essential to address the root cause. Many building owners overlook commercial kitchen leaks, assuming they’re minor. However, unaddressed leaks can damage your building’s structure and pose health risks to occupants, making prompt action crucial.
  • Water seepage through kitchen floors

    Moisture passing through floor finishes due to prolonged water exposure during kitchen operations.
  • Ceiling stains or dripping in units below

    Water marks or active leakage appearing in spaces beneath the kitchen area.
  • Persistent dampness despite frequent cleaning

    Ongoing moisture that remains even with regular washing and cleaning activities.
  • Leaks recurring after tile replacement or sealant repairs

    Water leakage that returns despite tile replacement or surface-level repair works.
  • Complaints from neighbouring tenants or building management

    Leakage issues affecting adjacent units, often highlighted through management or tenant feedback.

Why Kitchen Leaks Keep Coming Back

Compromised or absent waterproofing allows water and grease to seep into the substrate, causing recurring leaks.

Replacing tiles or sealant treats the surface, not the underlying waterproofing, so leaks quickly return.

High traffic, constant moisture, and chemical exposure in commercial kitchens require specialised waterproofing, standard systems fail under these conditions.

Uneven or dirty substrates prevent proper adhesion, reducing the durability of the waterproofing layer.

Leaks often occur at corners, drains, and junctions if membranes aren’t fully continuous and well-detailed.

ARCHTECH’s Approach to Kitchen Water Leak Solutions

We provide a systematic, long-lasting solution that protects your property from leaks, mould, and structural damage. Here’s how we do it: 
  • 1

    Root Cause Inspection

    Our specialist inspects the commercial kitchen to identify the actual source of leakage. This includes assessing floor finishes, waterproofing continuity, drainage points, service penetrations, and operational conditions before recommending any repair approach.
  • 2

    Surface Preparation & Repair

    Once the cause is identified, necessary preparatory works are carried out. This may include removal of existing finishes where required, surface preparation, and rectification of affected areas to ensure suitability for waterproofing installation.
  • 3

    Waterproofing System Application

    Based on the operating environment and usage requirements of commercial kitchens, a sanded torch-on membrane system is applied to form a durable and slip-resistant waterproofing layer beneath floor finishes. This system is selected to withstand frequent washing, moisture exposure, and heavy usage.
  • 4

    Reinstatement & Final Inspection

    After waterproofing works are completed, floor finishes are reinstated where required, followed by final inspection to ensure proper application before handover.

The solution leaves your area fully sealed and dry, providing lasting protection against leaks and daily moisture.

Our Waterproofing Method Keeps Your Kitchen Protected

Our kitchen waterproofing starts with a careful inspection and uses expert techniques suited to your space. By picking the right materials and methods, we fix leaks for good, keeping your kitchen dry and protected for years.

Certified and Experienced Applicators

All of our applicators are trained and experienced in handling commercial kitchen waterproofing works.

Comprehensive Leak Resolution

We have complete solutions to tackle all types of water leakage on kitchens, serving commercial buildings with lasting results. 


Lab-Tested and Certified Materials

We use materials that have been tested and certified to meet relevant performance and quality standards.

Green Label Products

We use low-VOC, environmentally responsible products to support safer indoor and surrounding environments.

Up to 10 years Warranty for a Piece of Mind

Our long-term warranty covers all commercial kitchen waterproofing work, giving you confidence in durability and reliability of ARCHTECH’s leak-proof solution.

Our Past Projects

ARCHTECH Waterproofing has been trusted across nation wide, from hospitality developments and government facilities to large-scale engineering works and premium residential properties. Our solutions are engineered for long-term performance, backed by technical expertise at every stage of the project.

Can’t Describe the Leak? Just Show Us.

Send a photo or video of your leak, and let our waterproofing specialist assess the situation so you don’t spend on wrong repairs.

Leaks in Your Kitchen? We’re Here to Help.

Tell us what you’re facing, whether it’s a leak, damp smell, mould stain or bubbling paint. Our team will review your case and get back to you with a personalised solution and quotation.

Explore Our Comprehensive Range of Waterproofing Solutions for Other Areas

Discover how we protect every area of your property.

HOW CAN WE ASSIST?

Frequently Asked Questions

Yes. Commercial kitchens are considered high-risk wet areas because floors are frequently exposed to water, grease, detergents and intensive cleaning. Proper waterproofing helps prevent water from seeping through the floor and causing damage to neighbouring areas or the level below.
The best floor waterproofing system depends on the existing floor condition, substrate, drainage layout and how the kitchen is used. Common options include cementitious waterproofing, liquid-applied membranes and bituminous membranes. A professional assessment is recommended before deciding on the most suitable system.
Tiles and grout are not the main waterproofing layer. If the membrane underneath has deteriorated, cracked or was poorly installed, replacing the surface finish may only provide a temporary fix. The underlying waterproofing system and leak source should be inspected.
Common leakage points include floor drains, pipe penetrations, floor-to-wall junctions, construction joints and cracks in the floor. These areas require proper detailing because even a small gap can allow water to penetrate beneath the finished surface.
In some cases, targeted waterproofing repairs may be possible if the affected area can be clearly identified. However, widespread membrane failure may require part or all of the floor system to be removed and reinstated. An inspection is usually needed to determine the extent of the problem.
A ponding or flood test is commonly carried out after the waterproofing system has cured. Water is retained over the treated area for a specified period while surrounding areas and the floor below are checked for signs of leakage before the final floor finish is installed.
Its lifespan depends on the waterproofing system, installation quality, floor movement, drainage condition and daily kitchen usage. Proper surface preparation, detailing around drains and penetrations, and regular maintenance can significantly improve long-term performance.