Ask ten people how often to clean their gutters and you’ll get ten answers, most of them “when it overflows”. On the Northern Beaches that’s usually too late. The honest answer depends on one thing more than anything else: the trees around your roof.
The short answer
For most Northern Beaches homes, here’s the rhythm that works:
- Open streets with few trees nearby: once a year, in spring.
- Leafy blocks with a few big trees: twice a year, in spring and late autumn.
- Bush-backed homes under gums, palms or paperbarks: two to three times a year.
If you only do one clean a year, make it the spring one. That’s the clean that sets your roof up for the season when gutters get tested hardest.
What’s actually in there
The photo at the top of this article is a real Coastal Clear job, and it’s not unusual. Gutters rarely fill with neat dry leaves. Leaf litter breaks down into a dark sludge, silt and grit wash down off the roof tiles, and in shaded spots moss moves in and starts growing like a little garden bed. By the time it looks like that, water isn’t flowing along the gutter at all; it’s sitting in it.
The Beaches makes this worse than most of Sydney. We have one of the biggest tree canopies in the city, and homes around Belrose, Davidson, Frenchs Forest and Terrey Hills sit right against bushland. Gum leaves and seed pods drop year round, palm fronds clog downpipe outlets, and paperbark flakes pack down tight. Closer to the water, salty damp air keeps everything moist, which is exactly what moss likes.
Why the spring clean matters most
Two things arrive together once the weather warms up. The first is storm season. A summer storm can dump a huge amount of rain in a short burst, and a gutter that copes with a gentle shower will overflow in minutes when it’s half full of sludge. The second is bushfire season. For homes near reserves and national park, dry leaf litter sitting in the gutters is an easy place for embers to land and catch. Clearing it before summer is a simple, practical part of getting your place ready.
Signs your gutters are overdue
- Water spilling over the front edge during rain instead of running to the downpipe
- Grass, moss or seedlings growing out of the gutter line
- Dark streaks or staining down the fascia boards
- Gutter runs sagging or pulling away from the brackets
- Puddles or soggy garden beds right along the walls of the house
- More mosquitoes or birds around the roofline than usual
If you can see anything green up there from the ground, it’s well past due.
What a blocked gutter really costs
The clean is never the expensive part. When gutters overflow, water doesn’t just fall harmlessly to the ground. It runs back behind the gutter into the eaves and fascia, rots timber, and finds its way into ceilings and wall cavities. Standing water in a packed gutter also speeds up rust in older metal gutters. A ceiling stain is usually the first thing people notice, and by then the repair bill is many times the cost of the clean that would have prevented it.
Not sure how bad yours are? Check first
Most people genuinely can’t see into their gutters, and climbing a ladder to find out is how a lot of weekend injuries happen. That’s why we offer a $59 drone inspection: we fly the roofline and show you exactly what’s up there. If your gutters are clear, you’ve got peace of mind going into summer. If they need doing, the full $59 comes off the price of your gutter clean, so the inspection effectively costs nothing.
When we do clean, it’s by hand. Every leaf, twig and seed pod is lifted out and bagged rather than blown across your roof and into the garden, every downpipe is flushed, and we check the water actually runs before we leave. If you’ve got solar, it’s worth adding a panel clean while we’re already up at roof level, and plenty of customers pair it with a window clean on the same visit.
Storm season is almost here. If your gutters haven’t been touched since last spring, grab a free, obligation-free quote or book the drone inspection and find out where you stand.