Galvanised Steel Experts
At Accredited Roofing, we understand that an older galvanised steel roof may require more care to ensure its durability. We offer a range of solutions tailored to the needs of your galvanised steel roof, and to suit your budget.
We are your one-stop shop for all your roofing needs. Trust our skilled team to ensure your galvanised steel roof is protected and looking great for years to come. Contact us today to discuss your roof’s requirements and get expert advice and service.
Repairs, Restoration & Replacement
Galvanised steel was a common roofing material used on New Zealand homes until the 1980s. Galvanised steel roofing consists of raw sheets of iron that were dipped into molten zinc, creating a protective coating. The zinc layer would oxidise when exposed to air, forming a barrier against corrosion and rust. Some galvanised steel roof materials are now over 40 years old and may be due for maintenance or attention to maintain their protective properties.
Our team covers all services for your galvanised steel roof including cleaning, repairs, restoration, or even a complete roof replacement. Our team is experienced with galvanised steel roofing, whether you have a galvanised flat roof, galvanised ribbed style of roof or a galvanised corrugated steel roofing system, we’ve got the expertise to handle it.
Roof Treatments & Cleaning
Whether you’re looking for a durable solution to maintain and protect your roof or a quick way to restore its look, we have the perfect service for you! Our roof cleaning options include moss treatments, moss removal and high-pressure water blasting to keep your roof in top condition.
Roof Repair
For roof maintenance, we offer various repair services depending on your goals. Our roof repair services include replacing loose, rusted, or missing fixings, rust treatments, and replacing worn-out or buckled roofing materials such as sheets and flashings.
Roof Painting
We offer a specialised restoration package for galvanised steel roofs. This includes essential roof repairs, followed by the application of an oil-based primer to seal and lock in the galvanised substrate.We then apply a pigmented sealer, available in a variety of colours, to restore and protect your roof for the long term.
Roof Replacement
For those seeking a long-term solution, we offer roof replacement services using Colorsteel, an advanced roofing system. Colorsteel roofing provides superior durability, performance, and protection and a modern look, ensuring your home remains safe and secure. Available in a range of colours, Colorsteel roofing materials will not only enhance the look of your home but will also deliver exceptional long-term results.
Frequently Asked Questions
What is galvanised steel roofing, and why does it need extra care as it ages?
Galvanised steel roofing consists of iron sheets dipped in molten zinc, forming a protective layer. Many galvanised roofs are now over 40 years old, with weathered coatings and reduced protection. Without maintenance, rust and corrosion can spread, compromising both the roof and underlying structure.
What galvanised steel roof services do you offer in Auckland?
We provide tailored solutions for older galvanised steel roofs, including cleaning, repairs, restorative coatings and full roof replacement where needed. Our focus is on protecting your existing roof where viable, or installing a modern, durable roofing system when replacement becomes the better long‑term option.
How do you decide between repairing or replacing a galvanised roof?
We inspect the extent and depth of corrosion, check structural soundness and consider the age of the roof. If problems are localised, repairs and coatings may be enough. When corrosion is widespread or structural integrity is threatened, we’ll discuss re‑roofing options that provide a safer, longer‑lasting result.
Can galvanised steel roofs be successfully repainted?
We stand behind our workmanship and the NZ‑made roofing products we use. Customers will receive both a product and workmanship warranty. Specific guarantees vary by service and product. These details can be found on both our website and your quote. We’re always happy to talk you through applicable warranties for your job.
Are galvanised roofs suitable for today’s weather conditions?
Many older galvanised roofs continue to perform well when properly maintained. However, modern coated steel products may offer enhanced durability and lower maintenance. We can help you evaluate whether to maintain your existing galvanised roof or transition to a newer roofing system over time.
Do you support both residential and commercial galvanised roofs?
Yes. We work on galvanised steel roofs for homes, light commercial buildings and older industrial properties. Our team tailors repair, restoration or replacement solutions to each roof’s use, condition and budget, keeping long‑term performance and safety at the forefront.
