Most gutter systems added during home extensions work fine with existing drainage, handling increased roof area without problems. This Sandgate property was different. Five years of persistent overflow during rain despite previous modifications showed the original calculations hadn't accounted for the additional load. The white PVC guttering looked well-maintained, but good appearance doesn't guarantee proper capacity. Our team checked fall angles, calculated true catchment area from the extended roofline, and identified undersized downpipes as the core issue. Upgrading to larger diameter downpipes and repositioning outlets for better flow eliminated the chronic overflow problem. Book your drainage assessment with S&J Plumbing's Master Plumbers. Sometimes what looks sufficient simply isn't, and our 30+ years combined experience spots the difference. Same-day service available across Moreton Bay, with honest upfront pricing and zero dollar deposit interest-free terms.
