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Wollongong asks more of a roof than most of Sydney does. The city averages around 1,320 mm of rain a year, with February and March the wettest months, and it has form for extreme falls: in August 1998 the city took 316 mm in three hours. Sitting on a narrow coastal plain between the Tasman Sea and an escarpment rising to 750 metres, it also gets strong winter westerlies off the ranges, with gusts over 100 km/h recorded across the plain in July and August.
Add salt air from beaches running the length of the city and industrial atmosphere around Port Kembla, and you have one of the more demanding roofing environments in the state. Drainage capacity, fixing density and corrosion grade all matter more here than they do forty kilometres north.
The repairs we see most in Wollongong come from water volume and wind. Gutters and downpipes sized for average rainfall overflow in an Illawarra downpour and push water back under the roof edge; sheeting fixed at standard density lifts at the laps in a westerly gale; and valleys and gutters carrying salt and industrial fallout perforate years earlier than the same metal inland. We repair the cause rather than the symptom, which often means upsizing the drainage or increasing fixings rather than simply replacing what failed.
A re-roof in the Illawarra is a chance to correct three things at once. We specify the corrosion grade for your position, COLORBOND Ultra near the beaches and around the industrial areas, standard COLORBOND further back, and stainless where exposure warrants it. We set fixing density for the wind the escarpment actually delivers, and we size the gutters and downpipes for local rainfall rather than a default. Removal, disposal and compliant installation are all handled.
With this much rain, blocked drainage shows up quickly and expensively. Our maintenance visits clear gutters, valleys and downpipes before the wet months, check fasteners and laps for wind-loosening after winter westerlies, wash salt and industrial deposits off sheeting, and repoint capping on tiled roofs before it cracks out. Properties under the escarpment carry a heavy leaf and bark load, so they need clearing more often than the flat.
New builds, extensions and second storeys across the Illawarra, from the northern beach suburbs down through Figtree, Unanderra and the southern suburbs. We work with your builder from framing through sarking to finish, set fixing density for the site's wind exposure, and size the roof drainage for local rainfall instead of a generic figure. Everything goes in to Australian Standards, with the new-to-existing roof junction detailed properly.
An Illawarra roof ages faster than its Sydney equivalent, so remaining life is worth knowing before you buy. Our reports assess material grade against coastal and industrial exposure, check fasteners and laps for wind damage, look for salt and fallout pitting where rain does not rinse, and assess whether the drainage system can actually handle a Wollongong downpour. Photographs, condition ratings and a clear urgent-versus-planned split.
Guttering is the single most important part of a Wollongong roof and the most commonly undersized. When 150 mm of rain can fall in a month and far more in a single storm, a gutter and downpipe system sized to a minimum standard will overflow, and overflow means water into eaves, walls and ceilings. We size systems to the roof catchment and local rainfall, correct falls, upsize downpipes, and fit leaf guard suited to whatever your block drops. Replacement is in the corrosion grade the position requires.
A roof that works in the Illawarra is a roof where three things were got right: drainage capacity, fixing density and material grade. Getting any one of those wrong shows up within a few years here, even though the same shortcut might go unnoticed elsewhere in the state. Our roofers specify for local conditions and explain the reasoning, so you can see what you are paying for and why.
Wind is the main safety variable in Wollongong roofing. We do not put a crew on a roof in escarpment westerlies, and every job is planned with edge protection and anchor points suited to the pitch and exposure. Steep escarpment blocks bring their own access constraints, which we work out before quoting rather than on the day. Our team holds working-at-heights certification and we carry full public liability and workers compensation cover.
We hold trade access to the full COLORBOND range including Ultra, marine-grade fasteners and flashings, larger-profile guttering and downpipes for high-rainfall catchments, and matched tile profiles for the region's older housing. In an environment that combines salt and industrial air, having the right grade available matters more than it does in a mild location.
In the Illawarra, the expensive mistake is usually drainage. An undersized gutter costs very little more to upsize during a re-roof and saves repeated internal water damage over the life of the roof. The same goes for corrosion grade near Port Kembla and the beaches: a cheaper sheet saves a few hundred dollars now and costs a full re-roof a decade early. We quote what the conditions require and show you the reasoning.
From weatherboard and fibro homes in the older suburbs to modern builds on the northern beaches and escarpment blocks, we cover the range of Illawarra housing. Tile repairs, rebedding and repointing, valley replacement, full re-roofs in tile or Colorbond, and gutter and downpipe systems sized for the rain that actually falls here. Written scope and fixed pricing before we start.
Industrial units around Port Kembla and Unanderra, retail through the city centre, schools, clubs and strata buildings across the region. We schedule around operating hours, manage access and compliance on occupied sites, and work with the long-run metal and membrane systems these buildings use. Materials are specified for the industrial and marine atmosphere rather than a generic coastal assumption.
East coast lows and winter westerlies both do damage here, and an Illawarra storm can drop more rain in hours than some parts of Sydney see in a month. We respond quickly across Wollongong, make the roof safe, clear blocked drainage, install temporary weatherproofing, and return for permanent repairs. Everything is photographed as we go, which makes the insurance claim considerably simpler after a regional storm event.
Concrete and terracotta tile cover much of Wollongong's mid-century housing. High rainfall and salt-laden air erode bedding and pointing faster here, so ridge and hip capping needs attention sooner than the same roof would inland, and valley irons corrode from beneath. We rebed and repoint with flexible pointing, replace cracked and slipped tiles from matched stock, and replace valleys before they perforate rather than after.
Metal roofing handles Illawarra conditions well when it is specified properly. We install COLORBOND Ultra near the beaches and the industrial areas, standard COLORBOND further inland, and stainless in severe positions, always with fasteners and flashings in a matched corrosion class. Fixing density is set for local wind rather than the minimum, because escarpment westerlies find every under-fixed lap on the coastal plain.
Flat and low-slope roofs are hard work in a high-rainfall climate, because any ponding area is under water for a large part of the year. We install and repair membrane and low-pitch metal systems with genuine falls, generous outlets and accessible drainage points, and detail upstands, skylights and penetrations to hold under sustained wet. On commercial buildings we check outlet capacity against the roof catchment rather than assuming the original design was adequate.
We start with a detailed consultation and roof inspection. Our team reviews your needs, assesses the roof condition, and clearly explains possible solutions.
You’ll receive a transparent proposal with recommended solutions, material options, and a clear timeline — no jargon, just what you need to decide.
Once approved, our licensed team completes the work according to the scheduled timeline. Most roof replacements finish within 3–7 days, with quality and safety at the core.
After finishing, we inspect the roof with you, ensure everything meets expectations, and leave your site spotless. We also share tips for ongoing care.
Our Managing Director, Tom Stephens, brings over two decades of roofing expertise. Every project benefits from this leadership, ensuring work is completed to the highest standard.
We are fully licensed and insured, with all trades carrying certifications in working at heights, asbestos awareness, and elevated work platforms. Safety is never compromised.
Winners of the Australian Small Business Champion Awards 2024 and recognised finalists in local business awards, we are proud of our industry recognition.
We back our work with a two-year workmanship guarantee, an additional five years for new builds and replacements, plus manufacturer warranties on all materials.
Tomkat Roofing has spent over twenty years on roofs across Sydney and the Illawarra, in conditions that combine heavy rainfall, escarpment wind, salt air and industrial atmosphere. We are a licensed, insured team and winners of the 2024 and 2025 Australian Small Business Champion Awards in the roofer category.
Every job starts with a proper inspection and ends with a written scope and fixed pricing. Where we recommend upsizing drainage or increasing fixings beyond the minimum, we will explain exactly why the local conditions call for it.
Signs like leaks, sagging, missing tiles, or water stains often indicate the need for repair. However, if your roof is over 20 years old or has widespread damage, a full replacement may be more cost-effective.
Yes, we are fully licensed and insured, giving you confidence that all work is carried out to Australian standards and safety regulations. Our team is committed to delivering high-quality roofing services.
The timeline depends on the size and complexity of the roof, weather conditions, and the materials used. Most residential roof replacements take between 2 to 5 days. We’ll provide a clear timeline before the work begins.
Absolutely. We stand by the quality of our materials and workmanship. All our roofing work comes with a workmanship guarantee, and we use materials that are backed by manufacturer warranties.
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