Remedial Waterproofing Services
Protect your property from water leaks, moisture penetration and structural deterioration with professional remedial waterproofing services from Quin Projects. Our experienced team specialises in identifying waterproofing failures, repairing damaged membranes and restoring effective moisture protection for residential, strata and commercial buildings. Whether you are experiencing leaking balconies, deteriorated roof membranes, damp basement walls or failed bathroom waterproofing, we provide tailored remedial waterproofing solutions that address the underlying cause of the problem. With over 30 years of remedial building experience, Quin Projects combines detailed waterproofing diagnostics and remediation with reliable installation, repair and preventative maintenance. As a registered Class 2 building practitioner, we deliver waterproofing work in accordance with applicable building requirements and Australian standards. From minor waterproofing issues to complex building defects, our remedial waterproofing specialists focus on protecting structural integrity, minimising property damage and delivering durable, cost-effective results.

Comprehensive Remedial Waterproofing Services
At Quin Projects, we provide professional remedial waterproofing services, ranging from new installations to upgrades and repairs. Our team assesses the conditions of an existing site, identifies moisture entry points and recommends appropriate waterproofing solutions to enhance long-term protection of a building.
Waterproofing Installation Services
We provide professional waterproofing installations for renovations, building upgrades and membrane replacements. Our team identifies appropriate materials and methods of installations, considering the conditions of the surface, the exposure to water and other requirements of the building.
Key Features
- Roof, balcony and terrace waterproofing systems
- Basement and internal waterproofing membranes
- Bathroom and wet-area waterproofing installation
Benefits
- Improved protection against water penetration
- Installation aligned with applicable Australian Standards
Waterproofing Repair & Remediation
We identify the source of water penetration and provide remedial waterproofing services to failed membranes and seals. We offer a comprehensive waterproofing diagnostic and remedial service to identify defective waterproofing systems and recommend appropriate solutions to be taken
Key Features
- Leak detection and waterproofing defect assessment
- Damaged membrane repair and replacement
- Fixing and waterproofing affected building surfaces
Benefits
- Reduced risk of recurring leaks and moisture damage
- Targeted repairs that address underlying defects
Waterproofing Maintenance Services
Through regular maintenance, we can identify and repair waterproofing system deterioration early, before it becomes a major issue. Our team evaluates vulnerable areas of the waterproofing system and recommends appropriate maintenance solutions.
Key Features
- Waterproofing inspections and condition assessments
- Preventative membrane and sealant maintenance
- Drainage, flashing and expansion joint inspections
Benefits
- Early detection of potential waterproofing failures
- Improved waterproofing system lifespan
Our Specialisations
Quin Projects specialises in providing remedial waterproofing services to roofs, buildings, balconies, basements and wet areas. Our services consider the condition of the building, the level of moisture exposure, the available drainage, and existing waterproofing defects.
Remedial Roof Waterproofing
Membrane roof waterproofing systems can fail due to a number of reasons. Our team identifies the cause of failure and provides a range of solutions, including the installation, repair and replacement of roof waterproofing membranes and liquid-applied roofing systems. We also waterproof roof penetrations and improve roof drainage and joints.
- Roof membrane installation, repairs and replacement
- Liquid-applied waterproofing and protective coatings
- Flashing and waterproofing around roof penetrations
- Roof drainage and joint sealing improvements
Strata Remedial Waterproofing Services
Quin Projects works with strata management to identify and remedy multiple-unit strata and common property waterproofing.
- Common property waterproofing inspections
- Balcony, podium and planter box membrane repairs
- Waterproofing defect reporting and repair recommendations
- Coordinated remediation for multi-unit buildings
Basement Waterproofing Services
Structures below ground are prone to water infiltration and dampness. Our staff will determine where the water is entering and recommend an appropriate solution.
- Basement wall and floor waterproofing membranes
- Internal tanking and moisture protection systems
- Construction joint sealing and crack treatment
- Drainage improvements and water infiltration management
Balcony & Terrace Waterproofing Services
Exposed surfaces to the elements, movement and temperature changes result in failure of waterproofing membranes. Water can then penetrate the structure and adjacent units. Our staff provides remedial waterproofing for residential units and commercial balconies.
- Balcony and terrace membrane replacement
- Waterproofing joints, edges and surface penetrations
- Drainage outlet and flashing repairs
- Surface preparation and waterproofing restoration
Wet Area Waterproofing Services
Waterproofing for Wet Areas such as bathrooms, showers and laundries is essential to protect adjacent walls and floors from moisture and deterioration. Quin Projects repairs waterproofing for wet areas and for residential and commercial properties.
- Shower base and bathroom waterproofing repairs
- Wall and floor membrane installation
- Waterproofing around plumbing penetrations
- Failed sealant, joint and membrane replacement
Why Choose Quin Projects for Remedial Waterproofing?
Quin Projects has in-depth knowledge of building construction and extensive experience in remedial building works. Our highly skilled and experienced staff will ensure accurate identification of defects and determine the most appropriate and suitable repair.
30+ Years of Waterproofing & Remedial Experience
Established in 1994
Having over 30 yearsโ experience in the building remediation industry, we understand the nuances of waterproofing. These include but are not limited to water infiltration, decaying membranes and moisture in structures. Our experience allows us to provide effective repair and remedial services for a range of different buildings.
Registered Class 2 Building Practitioner
BUP0003576
Quin Projects is a member of the building remediation industry and, as such, provides building services in accordance with relevant laws and regulations and the needs of the project.
Full Compliance
NCC, Australian Standards, WHS
The services we provide are waterproofing-related and in accordance with the National Construction Code and the associated Australian Standards and OH&S requirements.
Experienced Multi-Disciplinary Team
Waterproofing & Building Remediation
Our team has first-hand knowledge of waterproofing and building remediation. We provide solutions and services for waterproofing remediation and the replacement of waterproofing membranes, as well as other related building repairs.

