Aerial view of an industrial roof showing valley gutters channelling rainwater toward the courtyard, by Sicon Group
Gutters & Downpipes January 2025 · 5 min read

Gutters & Downpipes

Gutters and Downpipes Services

SG
Sicon Group Roof & Waterproofing Specialists
5 minute read

Gutters and downpipes are the unsung heroes of a building's defence against water. They catch every drop that lands on the roof and channel it safely to the ground and away from the structure. When they fail — blocked, undersized, corroded or leaking — water backs up, overflows the edges, and finds its way into the walls and foundations instead. Sicon Group's gutter and downpipe services keep that system doing its job.

Why Drainage Is Critical, Not Cosmetic

It's easy to think of gutters as a finishing detail. In reality they carry an enormous workload. A large industrial roof sheds thousands of litres of water in a single storm, and the gutters and downpipes are the only thing moving all of it off the building. If they can't keep up, that water has to go somewhere — and that somewhere is over the edges, back under the sheeting, and down the walls.

On the Highveld this is especially punishing. Summer thunderstorms drop huge volumes of water in a matter of minutes, so a drainage system sized for gentle rain simply overflows exactly when it matters most.

What Goes Wrong with Gutters and Downpipes

Drainage problems are common because the system is exposed, hard-working and easy to forget. The usual culprits:

  • Blockages — leaves, dust, debris and birds' nests that choke the flow
  • Undersized systems — gutters and downpipes that can't handle Highveld storm volumes and overflow
  • Corrosion — rust eating through steel gutters and downpipes over the years
  • Leaking joints — seams and connections that open up and drip continuously
  • Poor falls — gutters that don't slope enough, so water sits and pools instead of draining
  • Sagging or detached gutters — failed brackets that let the gutter pull away from the building

The Damage a Failed Gutter Causes

When a gutter fails, the water it should have carried away goes to work on the building instead. Overflow runs down the walls, leaving damp, staining and — over time — structural deterioration. Backed-up water finds its way beneath the roof sheeting and shows up as an internal leak. And uncontrolled discharge at ground level erodes the soil around foundations. What looks like a small drainage niggle is very often the hidden cause of much bigger problems elsewhere.

A blocked or overflowing gutter is not a minor issue — it's the reason behind a surprising number of wall-damp, internal-leak and foundation problems. The water simply shows up somewhere other than where it went wrong.

Our Gutter and Downpipe Services

Sicon Group handles the full rainwater drainage system, end to end:

  • New installation — gutters, downpipes, box gutters and valley gutters, sized for the roof
  • Replacement — of corroded, failed or undersized systems
  • Repair — leaking joints, failed brackets and damaged sections
  • Cleaning & clearing — routine removal of debris before it causes an overflow
  • Upgrading & upsizing — increasing capacity to cope with storm volumes
  • Seamless gutter options — fewer joints means fewer places to leak

Getting Drainage Right

Replacing a gutter with the same undersized one just resets the clock on the same problem. Doing it properly means:

  • Sizing the gutters and downpipes for the actual roof area and local rainfall intensity
  • Setting the correct falls, so water always drains toward the outlets
  • Sealing or eliminating the joints where leaks start
  • Making sure downpipes discharge water clear of the walls and foundations
  • Keeping the whole system on a cleaning schedule so it never chokes
The Overlooked Essential

"Nobody notices the gutters until they overflow — and by then the water is already in the walls. Drainage that's correctly sized, sloped and maintained quietly protects the whole building, every storm, for years."

Keep the Water Moving

Overflowing, leaking or rusted-out gutters? Sicon Group installs, replaces, repairs and maintains gutters and downpipes across every roof type. Contact us — nationwide.

Contact Sicon Group
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