Drain Express, a trusted Toronto plumber, shares essential advice for cleaning old house sewer pipes at https://drainexpress.ca/cleaning-old-house-sewer-pipes-tips-for-effective-maintenance/. Their guide focuses on addressing corrosion, grease, and roots in aging cast iron or clay pipes. Proactive maintenance can prevent up to 25% of sewer issues, per industry data. Hydro-jetting and snaking are effective for clearing debris, while enzymatic cleaners prevent buildup. Drain Express uses CCTV inspections for non-invasive diagnostics. They recommend cleaning every 18-24 months to extend pipe lifespan. Serving Toronto and the GTA, their team delivers professional, efficient service. Drain Express is a reliable partner for maintaining old plumbing systems.