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Metal Roofing for Extensions in Melbourne
Colorbond metal roofing installation for home extensions across Melbourne's Eastern Suburbs. From flashings and gutters to matching your existing roof, we handle the full scope so your extension is watertight and built to last.
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BM Roof Plumbing rated 5/5 based on 135 reviews.
Extension roofing is one of the most common sources of roof leaks in Melbourne homes.
Adding an extension to your home is a significant investment. But when the roofing isn't handled correctly, water problems usually follow — sometimes immediately, sometimes a few years down the track when the damage is already done.
The junction between a new extension roof and the existing structure is the highest risk point. If the flashings aren't installed properly at that join, water finds its way in every time it rains. We regularly get called out to fix extension roofing that was either rushed, poorly detailed, or handed off to a builder who subcontracted it as an afterthought.
Drainage is another area that gets overlooked. A new roof area adds water volume that the existing gutters and downpipes may not be sized to handle. Without proper planning, gutters overflow and water ends up against the house rather than away from it.
Matching the existing roof is something many homeowners care about but few trades take seriously. Profile, colour, and finish all need to be considered so the extension doesn't look like an obvious addition from the street or from above.
We inspect first, every time. Existing roof condition, pitch, structure, drainage capacity, and the tie-in point are all assessed before we quote, so nothing is left to chance once work begins.
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Metal Roofing for Extensions, Handled From Start to Finish
We're based in Bayswater North and work across Melbourne's Eastern Suburbs. With over 10 years of roof plumbing experience, we specialise in the kind of detailed work that extension roofing demands — proper tie-ins, watertight flashings, and drainage that's planned to handle the full roof area.
Colorbond is the material we recommend for most extensions. It's lightweight, which matters when tying into an older structure, and it performs reliably through Melbourne's full range of weather conditions. It's also available in a wide range of profiles and colours, which makes matching or complementing an existing roof much more achievable than with other materials.
Flashings are where we put particular care. Every join between the new roof and the existing structure, every wall junction, and every penetration is sealed and detailed properly. This is what separates a roof that stays dry for decades from one that starts leaking within a few years.
Gutters and downpipes are sized and positioned to manage the water volume from the new roof area. Where existing gutters need to be extended or upgraded to cope with the additional flow, we include that as part of the scope rather than leaving it as a problem for later.
We work directly with homeowners and alongside builders throughout Melbourne. If your extension is already underway or still in planning, we're happy to be involved early so the roofing is properly considered from the start.
Get A QuoteTrusted by 135+ Melbourne Home Owners
We make your roofing stress-free and always provide the best results. Read about our past services for people who trusted us with their homes. We’re incredibly proud of the relationships we’ve built and the roof’s that we’ve worked on. See what our customers have to say.
Billy is the best. Lovely chap, thorough gentleman and a sincere pleasure to deal with. Awesome communication and even though I had a cheaper option to get the job done, I decided to engage Billy as he was the only one of 3 contractors who could be bothered to get on to the roof, examine the issues and provide his professional opinion. Glad I found such an honourable tradesperson. Thank You Billy, hats off to you and utmost respect mate, ta.
Lalit T Home OwnerBilly did a terrific job fixing up our metal roof. He offered practical solutions that worked and also saved us money when compared to the options some other companies had proposed. His communication was excellent, he was punctual and a pleasure to deal with. I would highly recommend BM Roof Plumbing to anyone looking for quality workmanship and hassle-free service.
Paul D Home OwnerBM Roof plumbing completed a roof extension & fascia, gutter, and downpipe replacement on our entire house. The level of workmanship was exceptional and the communication from Billy throughout the whole process was fantastic. I would highly recommend BM roof plumbing.
Tim E Home Owner
Get a roof inspection
If you're stuggling with leaks, damage or just an old roof then contact us for a no-obligation roof inspection so that we can come out and let you know the best way to solve your roofing problem.
- Phone 0448 936 748
Frequently Asked Questions About Metal Roofing for Extensions in Melbourne
Yes, and it's actually a common approach. Metal roofing can be installed on an extension even when the main roof is tiled. The key is making sure the junction between the two is properly flashed and waterproofed so water can't track between them. We assess this during the inspection and detail the join accordingly.
Colorbond comes in a wide range of colours and profiles, so in most cases we can get a very close match to an existing metal roof. For homes with tiled roofs, we choose a Colorbond colour and profile that complements rather than clashes. We discuss the options with you before any material is ordered.
Flashings seal the joints where the new roof meets walls, the existing roof, and any penetrations like pipes or vents. These junctions are the most vulnerable points for water entry. Poorly installed flashings are the number one cause of leaks on extension roofing, so this is an area we don't cut corners on.
Not always, but often yes. A new roof area adds water that needs somewhere to go. If your existing gutters aren't large enough or positioned to handle the additional flow, you'll get overflows and potential water damage. We assess drainage capacity as part of the inspection and let you know what's needed before work starts.
Yes. We regularly work alongside builders on home extensions across Melbourne. Getting us involved early in the process means the roofing is properly planned from the start rather than being resolved at lock-up when options are more limited.
Most Colorbond profiles can be installed on roofs from around 2 to 5 degrees pitch, depending on the profile chosen. Low-pitched extension roofs are common in Melbourne and we have experience installing on them correctly. We confirm suitability during the inspection.
Yes. We provide free inspections and detailed quotes for all extension roofing work across Melbourne and the Eastern Suburbs. Get in touch to arrange a time that suits you.
We service Melbourne with a strong focus on the Eastern Suburbs, including Bayswater, Boronia, Wantirna, Ringwood, Ferntree Gully, and surrounding areas.