Basement Waterproofing Services
Our basement waterproofing services help eliminate water ingress and persistent dampness in basements, thus protecting your property from moisture-related damage. Untreated water ingress can lead to mould growth and weaken building materials. We provide waterproofing and crack injection services to protect your basements from water ingress. Our team has over 30 yearsโ experience in the building industry and offers basement sealing and waterproofing services to the commercial, multi-residential and residential properties. We investigate the reason for water ingress and recommend appropriate repairs which may include crack injections for basement walls, membrane repairs, and internal or external waterproofing. As a Registered Class 2 Building Practitioner, we ensure the remedial works comply with the building legislation and Australian Standards. We focus on providing durable, fit-for-purpose solutions. We focus our services on repairing underlying defects and moisture problems and delivering long-term, durable solutions.

Comprehensive Basement Waterproofing Services
Quin Projects believes in providing a full range of services for our customers. This is why we offer basement waterproofing services, including inspections, installation, and remedial works. Our specialists have extensive building and construction knowledge, allowing us to thoroughly assess a building and recommend a range of viable options for our customers.
Basement Crack Injection Services
There are numerous causes for concrete structures to crack. One of these causes may be due to the expansion of the earth around the building or construction. Groundwater may seep into a building if cracks are present and a pathway has been created. Our crack injection service for basements uses specific materials to seal the cracks.
Key Features
- Basement moisture and crack assessments
- Basement crack injection for suitable concrete cracks
- Basement wall crack injection systems
Benefits
- Helps reduce water penetration through treated cracks
- Protects surrounding finishes from moisture damage
Basement Waterproofing Repair & Leak Remediation
Failed membranes, deteriorated seals and defective drainage can contribute to recurring basement leaks. Our team investigates the source of the problem and recommends suitable repairs rather than relying solely on temporary surface treatments.
Key Features
- Leak detection and waterproofing defect assessments
- Membrane repair and replacement
- Waterproofing basement walls and construction joints
Benefits
- Addresses identified sources of water entry
- Helps reduce recurring moisture problems
Basement Waterproofing Maintenance Services
Regular inspections help identify the early stages of membrane deterioration, cracks and drainage problems. Recommendations are provided for maintenance waterproofing systems.
Key Features
- Periodic waterproofing condition assessments
- Inspection of seals, joints and visible cracks
- Drainage and moisture monitoring
Benefits
- Earlier identification of potential defects
- Improved maintenance planning
Our Basement Waterproofing Specialisations
There are multiple ways to waterproof basements. The choice of method is dependent on the type and extent of the defects and the condition of the basement structure. Quin Projects assesses basements and selects the most appropriate solutions based on our findings.
Internal Basement Waterproofing & Crack Injection
Waterproofing from the inside may be the only practical way to remedy damp basements where there is no external access to the walls. Our team assesses cracks and joints to see if they can be injected, coated or sealed, and the internal surfaces to see if drainage measures are required.
- Basement wall crack injection and targeted leak sealing
- Internal waterproofing membranes and protective coatings
- Repair of leaking construction joints
- Internal drainage solutions where required
External Basement Waterproofing & Tanking
External waterproofing limits water reaching basement structures. Where access is feasible and excavation has been completed, external membranes and tanking systems are an effective means to manage exposure of groundwater and protect below-ground walls.
- External membrane installation and repairs
- Underground waterproofing and tanking systems
- Protection of waterproofing membranes during backfilling
- Drainage and water management improvements
Basement Wall Sealing & Water Management
Waterproofing seals on their own are not always the best way to control water ingress and manage underground conditions. Factors such as the type of joint or crack, as well as the type and condition of the substrate, must be considered to select the best treatment. A waterproofing sealant for basement applications may be appropriate for specific localised conditions and joints, but not for every situation involving water pressure or structural cracking.
- Basement joint and penetration sealing
- Suitable sealants and protective coatings
- Assessment of damp patches and water entry points
- Moisture management and drainage recommendations
Basement Water Management & Emergency Leak Repairs
Quin Projects assesses the severity of basement leaks and recommends the best course of action.
- Basement drainage and cavity drainage assessment
- Sump pump requirements where appropriate
- Investigation of active leaks and recurring dampness
- Urgent leak assessment and temporary measures, subject to availability
Why Choose Quin Projects for Basement Waterproofing?
Quin Projects benefits from a merger of remedial building and practical waterproofing and repair skills. We aim to establish the source of the moisture and select appropriate remediation methods and provide guidance accordingly.
30+ Years of Remedial Building Experience
Established 1994
Our experience in remedial building and construction helps us to identify the causes of leaking basements, defective membranes and deterioration of concrete. We aim to provide practical solutions for the problems found.
Registered Class 2 Building Practitioner
BUP0003576
As a Class 2 Building Practitioner, we evaluate the scope of remedial building work conducted under our practice against design and building legislation and regulations.
Quality & Compliance
NCC, Australian Standards, WHS
Our works are in accordance with the relevant provisions of the NCC, Australian Standards and Workplace Health and Safety legislation. Repair and waterproofing methods are carefully selected and tailored to the condition and requirements of the building.
Integrated Remedial Building Expertise
Waterproofing, Concrete & Drainage
Leaking basements often result from cracking in reinforced or precast concrete, defective joints, and deterioration of waterproofing membranes or drainage systems. Due to our experience in building waterproofing, we are in a position to take an integrated view of these and related defects when proposing solutions.

