Professional Guttering for Commercial Properties
HEAVY-DUTY GUTTERING FOR COMMERCIAL AND INDUSTRIAL PROPERTIES
Is your commercial building struggling with poor drainage, box gutter leaks, or blocked internal gutters? We’ve seen it all—and fixed it all.
At Fortified, we install and replace commercial guttering systems engineered to handle high-flow stormwater in compliance with NCC and QBCC standards. From box gutter installations to internal gutter upgrades—we’ve got Brisbane’s commercial sector covered.

50+ years of commercial guttering experience across Southeast QLD

Upgrade to a cyclone-rated, compliant metal roof system

Trusted by strata, builders, schools, factories, and retail centres
Why Brisbane Property Owners & Builders Choose Fortified

Engineered for Performance
We don’t just install gutters—we design systems to meet your building’s water load, layout, and compliance requirements.

Experts in Box & Internal Gutters
Box gutters, parapet gutters, and internal drainage systems require precision. We’ve installed them all—and know what it takes to make them flow.

Built to Handle High Volume
We size and grade every gutter correctly to prevent pooling, backflow, and overflow during heavy rain.

Long-Lasting Materials
We use commercial-grade Colorbond and Zincalume sheeting, custom-fabricated to fit your building.

Fast Turnaround & Minimal Disruption
Our team works efficiently and safely to avoid downtime on active commercial sites.

Certified, Insured & Fully Compliant
We’re QBCC-licensed and carry full public liability coverage—so you’re protected from start to finish.
Your Local Commercial Guttering Specialists Trusted by Builders, Strata Managers & Facility Owners
We’re Fortified—a Brisbane-based team with over 50 years of experience in commercial roofing and guttering.
Whether you need new box gutters for a multi-unit complex or a full internal guttering replacement for an ageing retail site, we handle every stage—from design to install to certification.
We’ve completed projects for schools, factories, aged care facilities, offices, and more. Whatever your commercial guttering challenge, we’re ready to solve it.









Trusted by Builders, Strata Managers & Facility Owners
Contrary to popular belief
Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur
Contrary to popular belief
Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur
Contrary to popular belief
Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur
Trusted Commercial Gutter Replacement Experts Across Brisbane
From shopping centres to factories, our clients rely on Fortified for guttering solutions that perform, comply, and last.
Posted on Google Trish NabarroTrustindex verifies that the original source of the review is Google. I had my roof & guttering replaced recently and I couldn’t have asked for a better job. Ray, Matt & crew worked tirelessly to get the job done. They did an Excellent job!Posted on Google Andrew WightTrustindex verifies that the original source of the review is Google. Ray and the team were delightful to deal with right from the first moment. Ray's passion for roofing and building (and life!) are incredible and he runs a tight ship. They also went above and beyond to touch up paint and fix a cracked tile. After initially struggling to even find a roofer who would return our calls at all, we're grateful that we ended up discovering Fortified. You'll have to look long and hard to find someone better.Posted on Google sumegh patneTrustindex verifies that the original source of the review is Google. Amazing work. Quick, efficient, considerate, inclusive, on schedule. Can’t find any fault. Especially, Matthew. Well done job!Posted on Google Ana VanderleerTrustindex verifies that the original source of the review is Google. Fortified roofing were great throughout the whole process. Very prompt with the quote and replies. Very easy to pay and make business with. They did an excellent job on our roof removing the old asbestos roof and putting in a new roof colour bond on the same day. We checked when they were finished and it looks amazing, ever since we haven't had to use our heaters because the insulation in the new roof is excellent.Posted on Google Andrew McDougallTrustindex verifies that the original source of the review is Google. Great ServicePosted on Google Lisa MBTrustindex verifies that the original source of the review is Google. We had a fantastic experience with Fortified Roofing. With all the rain Brisbane has experienced this past year, and Cyclone Alfred looming, we were very nervous about the state of our old tile roof. Matt and his team (and especially Ray) were professional, friendly and worked tirelessly - right up to the last possible moment before the weather turned too bad – to make sure everything was secure and ready. During and after the cyclone, our new roof held up beautifully. If you’re looking for a roofing company you can trust, especially in high-stress situations, Fortified Roofing can’t be beat.Posted on Google Claire DaltonTrustindex verifies that the original source of the review is Google. I reached out to Matt who installed our roof prior to purchasing our property. Unfortunately, our builder installed a patio roof which didn't meet code and caused leaking. Matt fixed the issue withoiut delay and his communication was excellent. I can't fault this company and would use them again.Posted on Google Nirmal SinghTrustindex verifies that the original source of the review is Google. Hi had Matt and his team replace an old roof on my old Queenslander using colorbond They did a fantastic job completed the job promptly Left the place clean and tidy Looks fantastic Thanks Matt couldn’t be happier !Posted on Google Marko MaljkovicTrustindex verifies that the original source of the review is Google. Very professional from quote to completion. Highly recommended.Posted on Google Suresh IyengarTrustindex verifies that the original source of the review is Google. I took quotes from five different roofing installers. I consider myself lucky to come across Oz Roofing (Fortified roofing group). Matt Turnbull and his father seventy year old Ray Turnbull are both down to earth people. They were honest, fair and guided me to make the right choice of roofing to replace my asbestos roof. Ray was present throughout the process of re-roofing and took special interest to make sure the job is done perfectly. I will have no hesitation to recommend Fortified roofing for their honest, friendly and fair dealings.
Our 6-Step Commercial Guttering Process
01. Site Assessment & Drainage Review
02.Custom Design & Quotation
We create a tailored solution that suits your site, stormwater load, and roofing layout.
03. Fabrication & Material Prep
We order or fabricate box gutters, overflows, and downpipes to exact measurements.
04. Safe Access & Setup
Our team sets up scaffolding, edge protection, and safety signage in line with site WHS.
05. Gutter Installation
We install your system with precise falls, welded joins, and commercial-grade fittings.
06. Final Certification & Handover
We conduct a final inspection, clean the site, and provide warranty and compliance documentation.
Gutters That Do the Job— No More, No Less.
At Fortified, we’re not interested in guesswork or over-engineering. We design your commercial guttering system to do exactly what it should—drain water quickly, quietly, and reliably.
You’ll get expert advice, compliant installation, and a team that turns up and delivers.
You Can Add to Your Commercial Guttering Project
We’re Already Working Across Brisbane
Supporting Builders & Property Managers Across Southeast QLD
Our commercial guttering services extend across:
- Brisbane
- Ipswich
- Gold Coast
- Moreton Bay
- Red Lands
- Sunshine Coast
Commercial Guttering FAQs
What Brisbane homeowners ask us most when planning to replace their asbestos roof.
Do you install box gutters?
Yes—we specialise in box gutter installations and replacements for commercial buildings. Our systems are fully compliant with current NCC standards.
Can you work on active commercial sites?
Absolutely. We coordinate with your site manager and stakeholders to avoid disruption and ensure safety throughout the job.
What’s the difference between internal and box gutters?
Box gutters are typically concealed within parapets, while internal gutters are hidden within roof valleys or structures. Both require precision grading and correct overflows to work properly.
checkout our Commercial Guttering resources and learn what to expect
Replacing asbestos roofing isn’t a DIY job. Learn about the process, risks, and your next steps – all explained clearly in our expert guides.
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A commercial roof replacement is not the same as a residential one. The scale is larger, the compliance
- 09/02/2026
If you have been researching ways to reduce heat through your roof, you have probably come across the
Let’s Upgrade Your commercial Guttering With Confidence
Talk to Fortified today about your commercial guttering needs—box gutters, internal systems, or full upgrades.
We’ll design it, install it, and back it all with real warranties.
