Roof Leaking? Fixed Before The Next Storm.
Sydney's licensed roof plumbers for leaks, gutters, downpipes, flashing and stormwater. Free roof and gutter inspection, $0 call-out, fixed quotes.

Get a Free Quote for Roof Plumbing
Tell us what's going on and we'll call you straight back, usually within 20 minutes. No call-out fee, upfront pricing, same-day where possible.
- Same-day service or it's free. We don't muck around.
- Upfront fixed pricing before we start. No nasty surprises.
- 20+ years fixing Sydney plumbing. Lifetime workmanship guarantee.
- Available 24/7, including weekends & public holidays.

Request A Callback
Takes 60 seconds · We’ll call you back fast
Signs You Need Help With Roof Plumbing
Spot any of these? The longer you wait, the worse (and pricier) it gets.
Roof Leaks
Ceiling Stains
Overflowing Gutters
Broken Downpipes
Storm Damage
Stormwater Problems
Acting fast saves you thousands
A small problem today can mean water damage, mould and a much bigger bill tomorrow. That's why Mr Flow runs 24/7, so a quick fix stays a quick fix.
Roof plumbers Sydney calls when the ceiling starts to drip
Roof plumbing is the part of plumbing that happens above your head: gutters, downpipes, flashings, valleys, box gutters and the stormwater lines that take rain away from the house. When any of it fails, water goes where it should not, and the first you know about it is a stain spreading across the ceiling or a waterfall over the front door in a downpour. Mr Flow has been repairing Sydney roofs for more than 20 years, and we know where the water gets in before we set the ladder up.
We start with a free roof and gutter inspection. That means a licensed roof plumber on the roof, not a guess from the driveway. We photograph what we find, explain it in plain terms and give you a fixed written quote for the repair. No call-out fee, no obligation, and the workmanship is guaranteed for life.

Where roof leaks actually come from
The wet patch on the ceiling is rarely under the hole in the roof. Water runs along rafters, battens and sarking for metres before it drips. Finding the entry point takes experience, and these are the places we look first.
Flashing around chimneys, vents and walls
- Most common leak point on Sydney roofs
- Lifted lead and dried-out sealant
- Re-dressed, re-sealed or replaced
Valley irons
- Carry more water than any roof part
- Rust through on Federation homes
- Iron replaced and tiles reset
Box gutters
- Overflow goes inside, not outside
- Common on terraces and semis
- Overflows fitted to protect ceilings
Rusted gutters and blocked downpipes
- Leaves hold water against the metal
- Blocked downpipes spill into eaves
- Looks like a roof leak but is not
Cracked tiles, rusted screws and lifted sheets
- Cracked tiles and slipped ridge caps
- Rusted screws and perished seals
- Ridges re-bedded, sheets re-screwed
Gutter and downpipe replacement
Gutters do not last forever. When the rust holes outnumber the sound metal, or the fall is so wrong that water sits in the gutter after every shower, replacement beats another round of patching. We replace gutters in Colorbond, Zincalume or galvanised steel to match the house, set them with the correct fall to the outlets, and fit new downpipes sized for the roof area they drain. Where a house has always overflowed at one corner, the answer is usually an extra downpipe there, not a bigger gutter. Gutter guard is fitted on request for homes under big trees.
Same-Day or It’s Free
Book before cut-off and we’re there today, or the call-out is on us. Fixed price before we start, lifetime guarantee after.
- Licensed & insured
- $0 call-out, any hour
- Upfront fixed pricing
- Lifetime workmanship guarantee

Stormwater connection and overflow
A downpipe that discharges onto the ground beside the house is doing damage every time it rains. The water soaks into the footings, undermines paving and, on Sydney clay, causes the movement that cracks brickwork. Every downpipe should connect to a stormwater line that runs to the street kerb, an easement or a council-approved absorption pit. We connect new downpipes, replace broken stormwater pipe and clear lines that are blocked with silt and roots. Blocked stormwater pits and lines are cleared with the same jet blasting gear we use for blocked drains.

“Kitchen drain was totally blocked on a Sunday arvo. Harry's team had it cleared within the hour, no weekend surcharge nonsense. Upfront price, great bloke.”
Storm damage and make-safe
When a storm tears off sheets, drops a branch through the tiles or fills a box gutter with hail, we come out that night to make the roof safe and stop water getting in. Tarps, temporary flashings and gutter clearing buy time until the permanent repair can be done in daylight. Our emergency plumbing crew is on the road 24 hours a day, and we provide the photos and written reports your insurer will ask for.
How a roof plumbing job runs
We do not quote roof work from the ground because the ground is where the guesses come from.

Free inspection, fixed quotes, $0 call-out
The roof and gutter inspection is free and there is no call-out fee, so it costs nothing to find out what is wrong. Every repair is quoted as a fixed price before work starts. New customers get $50 off their first booking. Book before the daily cut-off and we will be there the same day, or the call-out is free. If the inspection turns up a plumbing problem below the roof as well, the same team handles general plumbing across Sydney, from the Northern Beaches to the Sutherland Shire and out to the Hills.


The Mr Flow crew on real Sydney jobs.
How It Works
No waiting around. No vague ETAs. A few simple steps and it's sorted.
Tell Us Where It Leaks
Call or use the form. A photo of the stain or the gutter helps us come prepared.
Free Inspection
We get on the roof, find the real cause and show you photos of what we found.
Fixed & Guaranteed
Fixed written quote, repair done properly, lifetime guarantee on the workmanship.
Upfront Pricing. No Surprises.
You approve a fixed price before we start. Every time.
* Offers subject to our terms and conditions. Fixed price confirmed on site before any work begins.
Related Services

General Plumbing
Leaks, water pressure, pipe replacement and maintenance, fixed price and guaranteed for life.
Learn More
Blocked Drains
Sinks, showers, toilets and sewers cleared same-day with CCTV and jet blasting.
Learn More
Emergency Plumbing
Burst pipes, flooding, sewage and gas leaks. 60-minute response, 24 hours a day, $0 call-out.
Learn MoreWhy Sydney Chooses Mr Flow
We're not the biggest franchise. We're the crew your neighbours actually recommend.
Same-Day or It's Free
Book before cut-off and we'll be there today, or you don't pay the call-out.
60-Minute Response
Emergency? We aim to be at your door within the hour, 24/7.
Licensed & Insured
Fully qualified Sydney plumbers. Every job covered, every time.
Upfront Pricing
You approve a fixed price before we lift a tool. No hidden fees.
20+ Years Experience
Two decades fixing every kind of Sydney plumbing problem. We've seen it all.
Lifetime Guarantee
Our workmanship is backed for life. If it's our fault, we fix it free.
Same-Day Service or It’s Free
If we can’t get to you the same day you book (before cut-off), we waive the call-out. Simple as that. That’s how confident we are.
What Sydney Says About Mr Flow
“Kitchen drain was totally blocked on a Sunday arvo. Harry's team had it cleared within the hour, no weekend surcharge nonsense. Upfront price, great bloke.”
“Used the CCTV camera to show me exactly where the tree roots were, then jet-blasted it clean. Honest, tidy and explained everything. Wouldn't call anyone else.”
“Manage a few rental properties and Mr Flow is my go-to. Fast, reliable, fair pricing and they sort the tenant directly. Makes my job so much easier.”
Roof Plumbing Across Sydney
From the CBD to the Hills and out to Blacktown, there's a Mr Flow van near you, ready to roll.
Roof Plumbing FAQs
Is the roof inspection really free?
There is a stain on my ceiling. Is it a roof leak?
Do I need to replace all my gutters or just the rusted section?
Can you come out during a storm?
Do you connect downpipes to stormwater?
Is roof plumbing covered by your lifetime guarantee?
Roof Leaking? Fixed Before The Next Storm.
Talk to a real Sydney plumber now on 02 9134 9037. Same-day service or it's free.
No obligation · Licensed & insured · Lifetime guarantee on all work
