The roof cleaning cost for a typical South-East Queensland home sits somewhere between $600 and $1,300 plus GST, and the single biggest factor deciding where your roof lands in that range is its size. That’s the short answer, and it’s the one most homeowners are looking for when they start shopping around. The longer answer is that two houses on the same Brisbane street can be quoted quite differently, and understanding why helps you compare quotes properly, avoid the cheap job that costs more later, and know what you’re actually paying for when the cleaner turns up.
We clean tile, terracotta and Colorbond roofs across Brisbane, the Gold Coast and the Sunshine Coast, and we quote every job on a free on-site measure rather than a guess over the phone. This guide sets out the price bands we work to, the factors that move a roof up or down within them, the difference between a cheap clean and a good one, and how to make sure the price you accept is the price you pay.
Table of Contents:
The price bands we actually work to
Most roof cleaning in SE-QLD is priced on roof area, because area is the clearest proxy for how much product, water and labour the job will take. As a general guide, a roof of up to around 200 square metres, which covers most single-storey homes, comes in at about $799 plus GST. A roof of up to around 300 square metres, typical of a larger single-storey or a modest two-storey home, sits around $890 plus GST. Larger homes of up to around 500 square metres come in at about $1,290 plus GST. Across the general run of homes we see, that puts the average professional clean somewhere between $600 and $1,200 plus GST.
These are starting points rather than fixed prices, and they assume a residential roof in fair condition with normal access. They’re useful for budgeting and for sense-checking quotes, but the only number that matters is the one you get after someone has measured your roof and looked at what’s growing on it. That’s why we don’t quote blind, and it’s why you should be wary of anyone who gives you a firm figure without seeing the property. You can see how these bands apply to the full service on our roof cleaning page for Brisbane, the Gold Coast and the Sunshine Coast.
Why roof size matters more than anything else
Roof area drives almost every input into the job. A larger roof needs more treatment solution, more dwell time management, more rinsing and more hours on the roof, and a two-storey home adds height and safety work on top of the extra area. Square metres also include the parts of the roof you can’t see from the street, such as rear hips, extensions and patio roofs, so homeowners are often surprised that their roof is bigger than they assumed. A proper measure accounts for every plane, which is why an honest quote is based on a measurement rather than the number of bedrooms.
Pitch matters too. A steep roof takes longer to work safely, needs more careful harnessing and anchoring, and slows down every stage of the clean. A low-pitched roof on a single-storey home is the quickest and simplest job, which is why it sits at the bottom of the range. Because we’re licensed to work at heights up to 20 metres, we handle steep, tall and complex roofs routinely, but that extra care is reflected in the time a job takes.
What’s growing on your roof changes the price
The second big factor in roof cleaning cost is the condition of the roof. A roof with a light film of dirt and a few early spots of mould is a straightforward clean. A roof that’s been left for a decade under overhanging trees, carpeted in lichen, moss and black algae, needs more treatment, longer dwell times and more rinsing to bring back to clean. Queensland’s humidity and summer rain make growth faster here than in most of the country, so a roof that hasn’t been cleaned in years is often heavier work than the owner expects.
Lichen is the most stubborn of these because it bonds tightly to the tile surface and needs to be killed at the root rather than scrubbed off, which we explain in more detail in our guide to getting rid of lichen on your roof. Moss holds moisture against the tiles and needs a similar approach, covered in our piece on removing moss from your roof. The heavier the growth, the more product and time the job needs, and that shows in the quote. The good news is that a roof cleaned properly and then maintained every few years never gets back to that heavy state, so the second clean is usually cheaper than the first.
Roof material and the method it needs
Tile, terracotta and Colorbond each need a slightly different approach, and that can nudge the price. Concrete tiles are porous and hold growth deep in the surface, so they benefit from a thorough soft wash treatment and a longer dwell. Terracotta is harder-wearing but can be brittle, so it needs careful foot traffic and low pressure. Colorbond and other metal roofs need a manufacturer-approved method that cleans without stripping the factory coating, and doing that properly takes care rather than brute force.
We lead with soft wash on almost every residential roof because it kills mould, lichen and algae at the root without cracking tiles or stripping coatings, and that method choice is part of what you’re paying for. A soft wash clean uses a treatment solution and a low-pressure rinse, which costs a little more in product than simply blasting the roof with a high-pressure unit. Over the life of the roof, though, it’s the cheaper option, because the result lasts longer and it doesn’t create the repair bills that high pressure can.
The cheap clean that costs more later
Every homeowner sees it at some point: a quote that’s hundreds of dollars below everyone else’s. Sometimes that’s a genuine saving, but more often it reflects a high-pressure-only clean done quickly, with little treatment and no attention to what the force of the water is doing to the roof. High pressure can crack concrete tiles, dislodge terracotta, wash out the bedding and pointing on ridge caps, and force water under the tile overlaps into the roof cavity. On Colorbond it can strip the coating and void the manufacturer’s warranty.
The real roof cleaning cost of that kind of job shows up later, as broken tiles, leaks after the next storm, or a roof that looks dirty again within a season because the growth was blasted off the surface rather than killed. If a clean exposes cracked tiles or failed pointing, the repair is a separate job, and it’s worth reading our explanation of why tile roofs crack before you choose a cleaner purely on price. When you compare quotes, ask each cleaner what method they’ll use, what pressure, and what happens if they find damage. The answers will tell you far more than the price.
Extras that can be added to the job
A roof clean is often the best moment to tick off related work, because the team, the equipment and the access are already in place. The most common add-on is gutter cleaning, since a roof clean sends a lot of debris and runoff towards the gutters, and clearing them at the same visit protects your fascia, walls and downpipes. We cover the case for doing the two together in our guide to roof and gutter cleaning in Brisbane, and you can see the standalone service on our gutter cleaning page.
House washing is the other natural pairing, because a clean roof makes grimy walls, eaves and paths more noticeable, and washing them on the same booking saves the cost of a second call-out. Our house washing service uses the same soft wash approach so it’s safe on render, weatherboard and paintwork. Each add-on is priced separately and agreed in writing before work begins, so there’s no surprise on the invoice.
When cleaning leads to painting
For some roofs, cleaning is the end of the job. For others, the clean reveals a surface that’s faded, porous or losing its coating, and the homeowner starts weighing up whether to paint as well. If you’re heading that way, there’s a strong case for treating the clean as the first stage of a repaint rather than a separate job, because a roof has to be thoroughly cleaned before it can be painted anyway. We explain how the two fit together in our guide to roof cleaning and painting, and our roof painting cost guide sets out what the next step would cost.
There’s no pressure to go further than a clean. Plenty of roofs, particularly newer tile and Colorbond roofs with their coatings intact, only ever need a clean every few years to stay in excellent shape. Part of a proper inspection is telling you honestly which camp your roof is in.
How often you’ll pay for a clean
Budgeting for a roof clean isn’t a one-off decision. Most SE-QLD homes benefit from a professional clean every three to five years, and homes under trees, near the coast or with shaded south-facing roof planes may need it more often. Spread across that cycle, the roof cleaning cost works out to a modest annual figure, and it protects the roof itself, because mould, lichen and moss all hold moisture against the surface and break it down over time.
Keeping the roof and gutters clear between cleans, trimming back overhanging branches and getting on top of small patches of growth before they spread all stretch the gap between visits. Our roof cleaning and maintenance checklist covers the simple things homeowners can do to keep the roof cleaner for longer, and the QBCC’s storm preparation advice recommends clearing gutters and downpipes before severe weather arrives, which is another good reason not to let the gap between cleans stretch too far.
Does location change the price?
Within our service area, location makes far less difference to the roof cleaning cost than most people expect. A roof in Ipswich, Logan, the Redlands or Moreton Bay is priced on the same factors as one in inner Brisbane: its size, pitch, material, condition and access. Where location does matter is in what tends to grow on the roof. Coastal homes collect salt and fine grime, leafy hillside suburbs collect more leaf litter and moss, and inland homes often show heavier dust and algae streaking. Those differences show up in how much treatment the roof needs rather than in a separate charge for the suburb itself.
How to make sure the quote is the final price
The most useful thing you can do when comparing quotes is make sure each one covers the same scope. Check that it’s based on an on-site measure, that it names the cleaning method and the treatment used, that it states whether gutters, downpipes and solar panels are included, and that it spells out what happens if damage is found. A quote that’s clear on all of that is one you can rely on.
At Apex Roof Painting, every quote follows a free on-site measure and inspection, and the price we give is fixed. There’s no deposit, payment is on completion, and any extras are agreed in writing before work begins. Every clean is backed by a written guarantee on workmanship and results, we carry $20M public liability cover, and we’re licensed for heights up to 20 metres. We’ve spent more than 10 years cleaning roofs across Brisbane and South-East Queensland, and our 50+ five-star Google reviews reflect the way we work.
Get a fixed price for your roof
If you’re trying to pin down the roof cleaning cost for your own home, the fastest way to a reliable number is a free measure and quote. We’ll inspect the roof, check what’s growing on it, look at access and any damage, and give you a fixed price with no hidden costs, usually within 24 hours. Whether you’re in Brisbane, Ipswich, Logan, Moreton Bay, the Gold Coast or the Sunshine Coast, you can request your free quote online and mention this guide to receive 10% off.
A clean roof is one of the most affordable upgrades a Queensland home can get, and knowing what drives the price is the best way to make sure you get it done right the first time.