Waterproofing

We’ve been applying quality membrane coatings to new and existing buildings for over 20 years and guarantee all of our work.

Quality commercial waterproofing contractors

Whatever waterproofing services you need, our team will seal quality into the job. We specialise in the application of waterproofing membranes and associated products – and no waterproofing project is too big or too small.

Our clients include large scale civil and commercial contractors and property owners. Working with you, your engineers, architects or contractors, we’ll determine the right waterproofing solution for your project.

We use the latest waterproofing systems and techniques and our work exceeds all Australian quality standards and is fully guaranteed. This means your property and assets are protected from leaks and water damage for years to come.

Our waterproofing expertise

Caulking
Sealants
Decks
Internal wet areas (showers, bathrooms, laundries, ensuites)
Wall coatings
Balcony coatings
Trafficable / car park coatings
Planter boxes
Water features
Rooftops / green roofs
Retaining walls
Tanks (steel, concrete, sewerage, fire, water, bunding)
Below-grade applications (basements, tunnels)  

“Since we have begun using NJD Corp on our Hermitage Lifestyle Development in Tea Gardens, we’ve been very impressed with the quality of their work. This development is far from complete, with over 200 homes to be built. We’re very happy to have sourced such an experienced applicator to maintain the high standard we want and our customers expect from Crighton Building Co.”

George Nott |Supervisor | Crighton Building Co

Internal wet area waterproofing

We waterproof all internal wet areas, including showers, bathrooms, ensuites, and laundries. Our eco-friendly low VOC liquid-applied polyurethane waterproofing system is strong, durable and highly flexible, accommodating normal building and structural movement.

Our systems are suitable for most building substrates such as concrete, rendered brickwork, blockwork, particleboard, compressed fibre cement and wet area wall sheeting. It’s compatible with most tile adhesives and can be covered with tiles, vinyl and timber.

“I’m happy to recommend Nathan and his team at NJD Corp. I enlisted them to do various waterproofing at my private residence. My house is architecturally designed and I wanted the best in quality for every aspect of its construction. My bathrooms, ensuites, laundry, planter boxes and decks were all waterproofed by them and they completed the jobs professionally and in keeping with our timeframe. If I needed waterproofing in the future, I would definitely use them again.”

Roger Nation | Managing Director | Architectural Glass Projects

Latest waterproofing projects

Remedial waterproofing

If your current waterproofing systems are failing and you notice damage or leaks, we can swiftly diagnose and rectify the issue.

Remedial waterproofing repairs and restoration  

We specialise in all aspects of remedial waterproofing repairs and restoration across the commercial, industrial and residential sectors. We’ll diagnose the issue, recommend the works to be undertaken and coordinate all required trades from project start to finish.

Our services range from repairing failed membranes on roofs, decks, balconies and showers to replacing windows, balustrade removal and internal refurbishment. We also specialise in removing old coatings and membranes and installing new waterproofing systems to failed areas.

In addition, our remedial services include the repair and installation of epoxy flooring systems. These systems are chemical resistant and suitable for pedestrian and vehicle traffic. They’re also fast curing, meaning there’s minimal disruption to your trading or operations.

Leak detection services

Leak detection can be highly complex, and the source is often difficult to locate. We specialise in all aspects of leak detection, from small residential leaks to high-rise residential or commercial buildings. We’ll provide you with a written report on consultation along with recommendations to fix the problem in the most cost-effective manner.

“The team from NJD Corp consistently display professionalism through business and their high quality of workmanship. Time and time again, they continue to display their thorough knowledge through all aspects of the waterproofing industry, being able to resolve any issue which may arise. Knowledge, experience and their commitment to high-quality workmanship make them stand out within the industry”.

Michael Farrant | Tremco | Construction Division

“Recently, NJD Corp assisted Synergy with an important heritage building works project at Stockton. We found them to be professional, meticulous and were suitably impressed with their quality and workmanship. We would be happy to use NJD Corp again if the situation arose where we needed their expertise.”

David Reeve | Construction Manager | Synergy Resource Management

Building maintenance  

Our wide range of building maintenance services takes the hassle out of property management. They include waterproofing and more.

Building maintenance services for easy management

We work with strata companies, building managers and building owners, carrying out a wide range of building maintenance services to ensure their properties remain in sound condition, both inside and out. While we specialise in waterproofing maintenance, we also offer other maintenance services.

By regularly checking roofs, balconies, windows and other areas, we can identify any problems, such as tiny cracks or leaks early, and carry out remedial works to fix them. As water damage can escalate quickly, this can help prevent significant and costly damage occurring.

Whatever building maintenance your property needs, we take away the stress and time involved in sourcing and acquiring materials and tools and screening and engaging trades. All maintenance jobs are completed to a high standard with minimal disruption to occupants and operations.

Our building maintenance services

Waterpoofing to roofs, balconies, internal wet areas, tanks, podiums, landscape areas and basements

Façade maintenance and repairs

Restoration projects and general building maintenance

Epoxy flooring

Concrete repair

Injection systems

Box gutter repairs & maintenance

“NJD Corp have been providing maintenance for our large residential and commercial developments in the Newcastle area. We’ve found them to be extremely professional in all aspects of their work, especially liaising with owners and tenants and in getting problems resolved quickly. Their quality of work is always of a consistently high standard and undertaken in a professional manner. I’ve always found their service second to none and highly recommend them to anyone considering using this company on their next project.”

Maurice Bolger | Quality Assurance Manager | Abigroup Contractors

Joint sealing

Joint sealing may be a minor part of a construction project, but it plays a central role in keeping a building fireproof, air and watertight.

Protecting joints protects your assets

We understand just how critical joint sealing is in any construction project – it keeps your buildings air and watertight, preventing severe damage and loss of thermal insulation. Our experience in quality joint sealing extends over 20 years, and our work has never let our clients down.

At NJD Corp, we install a range of materials into the joints of buildings as well as between pre-cast panels, brickwork expansion joints, render expansion joints, and ceramic tile and movement joints. We only use high-quality   polyurethane, acrylic, and fire-rated joint sealants.

Our joint sealants come in a wide range of colours to meet your project requirements and specifications. We carry out all work safely, guided by our strict quality processes and completed as agreed in line with your project timeframe – and our initial proposal fee.

The cost of poor joint sealing

If installed incorrectly, joint sealants can lead to significant issues, including water damage, spillage leakages, vibration, leaks, fire damage, abrasion damage and chemical attack. These not only affect the safety of occupants and workers but they can demand major costly remedial works, and threaten structural integrity.

Concrete repair       

We’ve been restoring and rehabilitating concrete structures and surfaces across construction, building and residential sectors for over 20 years.

Concrete repairs for integrity and aesthetics

Concrete is a popular construction material used across Australia due to its strength, durability and flexibility. But, like any building material, it’s not immune to degradation and damage, and repair works on cracks and other defects are critical to ensure structural integrity, safety and aesthetics.

Our specialist concrete repair team provides a range of specialist remediation services to a wide spectrum of commercial, civil, industrial and residential clients. Over the past 20 years, we’ve developed highly effective solutions to restore and rehabilitate concrete structures, features and infrastructure.

Based on our analysis of the issues, we can suggest a wide range of solutions. Our solutions include polyurethane crack injection, corrosion inhibitors, epoxy crack injection, crystalline products, plugging compounds or hydrostatic pressure resistant membranes.

Our concrete repair services

Concrete cancer
Concrete cracks
Concrete spalling and repair
Façade repair and maintenance

Epoxy resin flooring

If you’re looking for durable flooring for a commercial or industrial space, look no further than our epoxy flooring solutions.  

Approved epoxy resin flooring contractors

Epoxy resin coatings are the ideal flooring choice for industrial and commercial spaces. They provide protection to concrete, where oils, fuels, chemicals, grease, fat, and heavy traffic may be present. They’re also highly durable with a smooth, visually appealing surface.

We offer a range of epoxy resin coating solutions in a wide variety of colours and finishes – including matt or gloss with decorative acrylic flakes. Our grip systems have a textured finish with AS 4586 compliance slip resistance and impact resistance (2-6mm).

We also provide a range of clear and penetrating sealers. These types of sealers are generally used to protect concrete and to minimise concrete dust. We typically apply these types of sealers in warehouses and car parks. They can be sprayed or applied by roller.

Benefits of epoxy resin flooring  

Hard and durable
Easy to clean
Impervious to chemicals
Antimicrobial properties
Visually appealing