Specialists in Roofing Maintenance and Restoration
Gutter and box gutter repairs on terraces, semis and cottages across the Inner West: leaking joints, rust, sagging runs and overflow.
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Our Inner West work is fully insured. NSW contractor licence 500439C, held by Sergio Olea.
Terraces and semis through Newtown, Annandale, Balmain and Marrickville rarely drain off a simple eaves gutter. Many rely on box gutters between roofs and concealed gutters behind parapets, and the fire walls between attached terraces are a recurring source of flashing and box gutter leaks. When one of those fails, the first sign is usually a stain on a ceiling, not water spilling over the edge.
Much of the Inner West is also flat and drains slowly. The Marrickville Valley flood study found thousands of properties taking water in storms as common as a 2 year event, so a gutter with a failed joint or a sagging run shows up in ordinary rain. We trace where the water actually gets in, then tell you straight up whether the section can be repaired or needs replacing.
Leaking joints and stop ends in box gutters and concealed gutters are cleaned back and resealed, or remade where sealant alone will not hold.
Where a gutter meets a shared fire wall we check the flashing too, because that junction is where terrace leaks usually start.
Sagging runs are refixed so the gutter falls to the outlet instead of holding water against the fascia.
We check every outlet and downpipe connection, since a small outlet on a terrace is often the real restriction.
You get photos of the problem and the finished repair, so you can see what was done on a roof you cannot get onto.
On homes built before the mid 1980s some guttering and sheeting can contain asbestos. If we suspect it, we stop and tell you before anything is cut.
Call 0452 223 327 or send the form with your address and whether the house is a terrace, semi or detached.
We look at the gutters and give you a fixed price for the repair before any work starts.
We make the repair, run water through the gutter to check it, and send through the photos.
Monkeys Roofing repairs gutters across the Inner West, including Newtown, Marrickville, Balmain, Leichhardt, Annandale and Ashfield, on terraces, semis, cottages and small strata blocks.
Because the drainage on many Inner West terraces is a box gutter or a concealed gutter behind a parapet. When a joint or outlet fails, the water has nowhere to go but into the building, so the repair is at that joint or outlet rather than the visible gutter.
Yes. Where a box gutter or valley runs along a party wall, we scope the job so it is clear what sits on your side and what sits on the neighbour’s, and we are happy to talk it through with them before work starts.
If the house was built or renovated before the mid 1980s, they might. Inner West Council advises that almost any home of that age is likely to contain asbestos, commonly in fibro sheeting, roofing and guttering. If we suspect it we stop and tell you, because removing more than 10 square metres, or anything friable, legally needs a licensed removalist.
A leaking box gutter left through one more storm usually ends up as a ceiling repair. Call 0452 223 327 or send the form to get a free quote, anywhere in the Inner West.
Newtown · Enmore · Erskineville · Camperdown · Marrickville · Dulwich Hill · Petersham · Stanmore · Lewisham · Leichhardt · Lilyfield · Rozelle · Balmain · Birchgrove · Glebe · Annandale · Ashfield · Summer Hill · Haberfield · St Peters
Also servicing surrounding Inner West suburbs. See our Inner West roofing page, or how we handle gutter repairs across Sydney.
Australian standards and Code requirements we work to, with the source for each.
The Code requires downpipes to sit as close as practical to where valley gutters discharge. On roofs with several valleys feeding one length of gutter, a downpipe in the wrong position overloads that section long before the rest of the run fills.
The National Construction Code allows a single downpipe to serve no more than 12 metres of eaves gutter. Long unbroken runs on Sydney terraces and wide Federation frontages often sit over that limit, which is why they overflow in heavy rain even when the gutter is clean.
Observatory Hill has averaged around 1,213 mm of rain a year on records kept since 1858. A 150 square metre roof therefore sends roughly 180,000 litres a year through its gutters and downpipes, which is why a blockage shows up as overflow so quickly.
Last updated: 8 October 2026
Gutter repairs in the Inner West has its own rules: heritage areas and tight access all change how the job is done. Everything below links to the council or standard it comes from, so you can check it yourself.
The Marrickville Valley flood study found 3,989 properties taking more than 150mm of water in a 1 per cent storm, and 3,151 properties still flooded to that depth in a storm as common as a 2 year event. Flat ground and slow drainage are the cause, so undersized downpipes and blocked gutters bite in ordinary rain.
Source: Inner West Council, Marrickville Valley Flood StudyIn the Dobroyd and Hawthorne Canal catchments, 885 of 1,446 and 690 of 1,036 flood planning lots are affected by overland flow alone. Where your roof water is discharged, and whether it is piped properly to the kerb, matters more than how close you are to a watercourse.
Source: Inner West Council, Dobroyd and Hawthorne Canal FRMSP 2020Marrickville DCP requires on site detention for any extension adding 40 square metres or more of roof or paving, and allows a 5,000 litre retention tank instead on lots over 200 square metres, plumbed to toilets, laundry and taps.
Source: Marrickville DCP 2011, section 2.25Ashfield street tree records list brush box avenues in Cecil, Oak, Federal, Ilford and Orpington Streets, with prickly paperbark common elsewhere. Both shed leaf and bark year round, so gutters here fill slowly and constantly rather than in one seasonal drop.
Source: Inner West Council, Ashfield Street Tree StrategyInner West Council advises that almost any home built or renovated before the mid 1980s is likely to contain asbestos, commonly in fibro sheeting, roofing and guttering. Over 10 square metres, or anything friable, legally needs a licensed removalist.
Source: Inner West Council, AsbestosWe cover Haberfield, Ashfield, Summer Hill, Croydon, Leichhardt, Annandale, Balmain, Rozelle, Lilyfield, Marrickville, Dulwich Hill, Petersham, Stanmore, Newtown, Enmore, St Peters, Tempe, Sydenham and Lewisham.
Inner West gutters overflow easily because much of the area is flat and drains slowly, so even ordinary storms flood homes. The Marrickville Valley flood study found 3,151 properties taking more than 150mm of water in a storm as common as a 2 year event, and in the Dobroyd and Hawthorne Canal catchments most flood-affected lots are hit by overland flow alone.
In the former Marrickville council area you may. The Marrickville DCP requires stormwater detention for any extension adding 40 square metres or more of roof or paving, and allows a 5,000 litre retention tank instead on lots over 200 square metres, plumbed to toilets, laundry and taps.
Little and often, because Inner West street trees shed all year. Ashfield street tree records list brush box avenues in Cecil, Oak, Federal, Ilford and Orpington Streets, and brush box and prickly paperbark drop leaf and bark year round, so gutters fill slowly and constantly rather than in one autumn drop.
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