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NJH specialise in the maintenance aspect of commercial and industrial roofs across Brisbane , the Sunshines Coast, the Gold Coast and surrounding suburbs.


Commercial Roof Maintenance

In the realm of commercial and industrial roofing, metal continues to reign as the most prevalent material. However, when it comes to replacing, repairing, or maintaining your metal roof, seek out a specialised metal roof plumber who can customise solutions tailored specifically to the unique challenges of your commercial roofing system.

We understand that in today's fast-paced business world, time is money, which is why our team of expert tradesmen work with you to schedule roofing services at times that best suit your needs, without sacrificing efficiency.

At NJH Roofing our team of skilled professionals are committed to providing high-quality, personalised service that caters specifically to your commercial roofing needs and comes with comprehensive written guarantees.


Whether you need routine maintenance, minor repairs, or a complete metal roof replacement, we have extensive experience handling all aspects of commercial and industrial metal roofing systems, including leak repairs.



When it comes to ventilating commercial roofs, the most popular choice is the 'Hurricane' vent - a strong and sturdy option designed specifically for industrial and commercial settings.


This ventilation system resembles a large whirly bird and offers numerous advantages, including the removal of harmful pollutants to improve air quality, the elimination of moisture build-up to regulate humidity levels, and the dissipation of heat through natural, wind-driven air cooling.


Additionally, the Hurricane vent promotes the circulation of fresh air to ensure a more pleasant and healthy work environment.

Another type of ventilation system used on commercial roofs is the Ridge vent. 

NJH can replace and instal both the hurricane and the ridge for your commercial or industrial building across Brisbane, Sunhsine Coast , The Gold Coast & surrounding suburbs.



Detecting leaks in metal roofs of industrial buildings and warehouses is a crucial process in maintaining the structural integrity of the building and preserving any goods or equipment stored inside. NJH will thoroughly examine and determine where your leak stems from, and how to fix it.

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We are often hired to conduct a commercial roof audit before performing any maintenance or repair work. This audit involves a complete examination of the roof, and the information we gather from this process is used to create a comprehensive report. The report includes an extensive description of the roof's condition, photos, diagnosis of potential problem areas, and recommendations to prevent future issues. Our report is designed to give you accurate information about your roof's condition and the options available to plan your maintenance schedule accordingly.



Steel "mesh" guards are designed to keep commercial gutters and sumps free of debris and hail. These guards are installed over gutters and sump outlets, forming a protective barrier that allows water to flow through but keeps debris and hail out. They are especially helpful in commercial areas like shopping centers, where birds may rummage through trash and leave litter on the roof, leading to sump blockages.



NJF roofing provides repair and re-roofing services for commercial metal roofs.

A repair and re-roof service can be beneficial for a number of reasons. First and foremost, it can help to extend the service life of your metal roof and prevent the need for a full roof replacement in the near future. Regular maintenance and repair can also help to prevent leaks and other issues that can cause damage to your building and disrupt your operations.

Additionally, a well-maintained metal roof can help to reduce energy costs by reflecting heat and sunlight away from your building. This can help to keep your building cooler in the summer and reduce the strain on your HVAC system.



If you want a durable roof material that lets in sunlight, translucent sheeting is a practical choice. It's used in commercial settings like warehouses and shopping centers due to its weather resistance and easy installation. It's also cost-effective because of its low maintenance requirements, hail and storm-proof design, and energy-efficient qualities. Also, it's perfect for adding natural light to industrial buildings like warehouses while reducing energy consumption.



A metal cladding applied to the outside of a commercial building not only looks sleek and modern but also provides added protection against weather and other environmental elements, making it a durable and cost-effective choice for any building owner.

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