Drain Express, a top Toronto plumbing service, offers expert guidance on cleaning old house sewer pipes at https://drainexpress.ca/cleaning-old-house-sewer-pipes-tips-for-effective-maintenance/. Their tips focus on preventing clogs in aging cast iron or clay pipes, which are prone to corrosion and root intrusion. Industry data indicates that regular maintenance can reduce sewer issues by up to 25%. They recommend hydro-jetting and enzymatic cleaners to safely clear grease and debris. Drain Express uses CCTV technology for precise, non-invasive pipe inspections. Biannual cleanings are advised to maintain pipe functionality and avoid costly repairs. Their GTA-wide services ensure fast, professional care. Drain Express helps Toronto homeowners keep their sewer systems running smoothly.