Drain Express, a trusted Toronto plumbing provider, shares expert advice on cleaning old house sewer pipes at https://drainexpress.ca/cleaning-old-house-sewer-pipes-tips-for-effective-maintenance/. Their article focuses on tackling rust, grease, and root intrusion in cast iron or clay pipes. Industry data suggests that proactive maintenance can reduce blockages by up to 25%. They advocate for hydro-jetting and enzymatic cleaners to clear pipes safely. Drain Express uses CCTV cameras for precise diagnostics without invasive methods. Biannual cleaning is recommended to prevent costly sewer backups. Their GTA-based team offers fast, professional service for homeowners. Drain Express ensures long-term reliability for aging plumbing systems.