Professional mould & mildew removal across Melbourne
Mould and mildew don’t go away on their own. Once it takes hold it spreads through microscopic spores, and water or vinegar won’t touch it. It turns up on almost any surface — glass, tiles, concrete, render, weatherboard, polycarbonate, metal — anywhere there’s moisture and a lack of direct sunlight. Which describes most of Melbourne between May and September.
We’ve treated mould and mildew on hundreds of Melbourne properties since 2015 — roofs, walls, driveways and cladding alike. The method is always the same: a chemical treatment custom-mixed on site to suit the surface, at a concentration strong enough to actually kill the spores.
Why Mould and Mildew Need Treating
It’s tempting to treat mould as a cosmetic problem. It isn’t — and it gets more expensive the longer it’s left.
Health risks
Spores cause coughing, wheezing, congestion and eye irritation, and aggravate allergies and asthma. Prolonged exposure leads to more serious complications — which is why it matters most in aged care, NDIS housing and anywhere with vulnerable residents.
Structural damage
Left long enough, mould weakens walls, ceilings and floors, and rots timber. What starts as a cosmetic mark on the render ends up as a repair bill.
Staining and discolouration
Mould stains set into the surface rather than sitting on it. The longer it’s there the harder it is to lift, and past a point it needs professional treatment to shift at all.
Unpleasant odours
That musty smell is the mould itself, and it lingers long after the visible growth is wiped away — because wiping never removed the spores producing it.
Decreased property value
Buyers are wary of a property with a mould history, and building inspections flag it. Treating it before you list is far cheaper than negotiating against it afterwards.
It spreads while you wait
Mould reproduces through airborne spores, so an affected wall seeds the areas around it. Treating early is the difference between one wall and one elevation.
Residential and Commercial Mould Treatment
One affected wall through to a full building exterior — same treatment, mixed to suit the surface.
Residential
South-facing walls, shaded render, driveways under trees, roofs and cladding. Send us photos and we’ll identify the level of treatment needed before you book, so the price is fixed before anyone arrives. Before-and-after photos when we finish.
Commercial
We hold regular contracts with strata groups, facilities teams, and NDIS and aged care providers across Melbourne — where mould is a resident health issue rather than a cosmetic one. Height-safety certification, $20M public liability, SWMS and a completion report per visit, invoiced against purchase orders.
Trusted By Leading Melbourne Businesses
We clean for schools, strata groups, retail chains and facilities managers right across Melbourne.
Why choose Exterior Clean Melbourne for mould removal
Kills spores at the root, not just the surface
Pressure alone blasts away the visible layer and leaves the spores behind — which is why it’s back within weeks. Our custom-mixed treatment gets them at the source.
Mixed on site, to your surface
We mix the treatment at your property to suit the material and how far the build-up has gone. We do this every day, so we know the right concentrations rather than applying one blend to everything.
Every surface covered
Glass, tiles, concrete, render, weatherboard, plastic, polycarbonate and metal. Each needs a different combination of chemical and pressure to treat without damaging what’s underneath.
Height-safety trained and fully insured
Working-at-heights certified teams and $20M public liability cover, with documentation on request — which matters when mould affects vulnerable residents in strata or aged care.
200% satisfaction guarantee
Not happy with the result? We’ll come back and make it right. Still not satisfied? We’ll offer up to a full refund. That’s how confident we are in the work.
Local Melbourne team since 2015
We know Melbourne’s damp, low-light conditions and the surfaces most prone to mould taking hold. Local experience that shows in the result.
How our mould & mildew removal works
Assess, mix to the surface, treat the spores — not just the stain.
Photo assessment and fixed quote
Send us photos before booking. We’ll identify how far the build-up has gone and what level of treatment it needs, then lock in a fixed price.
Treatment custom-mixed on site
We mix the solution at your property to suit the surface and the extent of the growth — concentration matters, and one blend doesn’t suit render and roof tiles alike.
Applied across the affected area
We spray the solution efficiently over large areas and let it work into the surface, reaching the spores rather than sitting on top of them.
Correct pressure for the surface
The right pressure and chemical combination for that material — enough to clear the growth, never enough to damage what’s underneath.
Final inspection and photos
We walk the job with you or send before-and-after photos, and flag anywhere the underlying moisture problem is likely to bring it back.
Recent Mould Treatments Across Melbourne
Every job photographed before and after — here are three from the last few months.
Mould Treatment · Ashburton · June 2026
|
Mould Treatment · Truganina · June 2026
|
Mould Treatment · Kew · July 2026
|
Mould & Mildew Removal Pricing
Surface type, how far the build-up has gone and access all affect the price. Send photos through the quote tool and we’ll price it properly rather than guessing at the level of treatment needed.
A minimum charge of $350 applies. Prices are a guide only. Your exact price is confirmed via the instant quote.
Why Washing Alone Doesn’t Fix Mould
This is the single most common reason people call us back about mould they’ve already had cleaned. Washing and treating are two different jobs, and only one of them deals with the cause.
Washing removes the stain
A pressure or soft wash clears the visible growth and the surface looks clean. That part is genuinely satisfying — and on its own, temporary.
Treatment removes the spores
Spores sit below the surface and in the pores. Unless they’re killed, the growth re-establishes from the same place within weeks.
Together, it actually lasts
We treat first, then wash. That’s why our mould work holds for months rather than until the next wet fortnight.
Recent Exterior Cleaning Reviews
4.9 stars across more than 300 Google reviews.
“It was a big job with lots of problem solving along the way. Very courteous and hard working. Thanks team.”
Sarah G
Google review · January 2026
“Excellent service! Friendly, helpful and clean. The house looks great and they cleaned up everything so it was spotless as they left. Awesome!”
Belinda K
Google review · April 2026
“Great service. High quality job, excellent communication. Flexible and accommodating to our needs.”
Neil P
Google review · March 2026
Mould Treatment Across Melbourne
We treat mould and mildew right across metropolitan Melbourne and down to Geelong. Have a look at the map below — if your suburb isn’t marked, we almost certainly still cover it.
Mould & mildew removal FAQs
Will household cleaners get rid of mould?
No. Water, vinegar and most household solutions remove the visible layer but don’t kill the spores, so it comes back — often within weeks, and usually in the same spot. It needs a proper chemical treatment at the right concentration.
Why does mould keep coming back after cleaning?
Because cleaning and treating are different things. Pressure washing blasts off what you can see and leaves the spores in the surface. Unless they’re killed, the growth re-establishes from exactly where it was.
What surfaces can you treat for mould?
Glass, tiles, concrete, render, weatherboard, plastic, polycarbonate and metal, among others. Each needs a different chemical and pressure combination. Upload a photo in the quote tool and we’ll confirm the right treatment for yours.
How often should I have mould treated?
As soon as you spot it — it spreads through airborne spores, so the affected area grows the longer it’s left. After that, annual preventative treatment keeps it from re-establishing in Melbourne’s damp, low-light conditions.
Is mould actually a health risk?
Yes. Spores cause coughing, wheezing, congestion and eye irritation, and aggravate allergies and asthma. Prolonged exposure can lead to more serious complications, which is why it’s treated as a priority in aged care, NDIS housing and anywhere with vulnerable residents.
Will the treatment damage my surfaces or plants?
No. We mix the treatment to suit the surface and use the correct pressure for that material. Sensitive planting is covered before we start and everything is rinsed thoroughly afterwards.
Do I need to be on site?
Not if we have safe access. We’ll confirm access details when you book, complete the work, and send through before-and-after photos when we’re done.
Are you insured?
Yes — Exterior Clean Melbourne carries full public liability cover and our teams are height-safety certified. If you need documentation for insurance or strata purposes, just ask.
Do you provide SWMS and insurance documentation?
Yes. Every commercial job comes with a Safe Work Method Statement, and we can supply certificates of currency for our $20M public liability and WorkCover on request.
Do you service multiple sites or ongoing contracts?
We do. We hold regular contracts with strata groups, facilities managers, and NDIS and aged care providers across Melbourne — scheduled preventative treatment rather than one-off call-outs.
How do I get a quote?
Upload a few photos of the affected area through our instant quote tool and you’ll have a price in minutes. Or call us on (03) 7047 5789 and we’ll sort it out directly.
|
200% Satisfaction Guarantee If you’re not happy enough to recommend us to a friend, tell us and we’ll send a team back to make it right. Still not satisfied? We’ll offer up to a full refund. That’s not a marketing line — it’s how we’ve maintained a 4.9-star rating across more than 300 jobs. T&Cs apply — see your booking confirmation for details. |
 |