Plumbing Checklist for Buying an Older North York Home

Before the offer

• Ask the seller about past floods, backups or sewer work.
• Ask whether there is a backwater valve and sump pump.
• Ask if the tank is rented or yours outright.
• Ask for any permits or invoices for plumbing work.

Bring a flashlight to the showing and look at the cleanout cap, the floor drain grate and the pipe where it leaves the foundation; rust stains and fresh patching tell you a lot before any inspector arrives.

During a viewing

1. Look at the main water line. Is it copper, lead or galvanized? Check near the meter.
2. Turn on taps. Check pressure and drainage, especially upstairs.
3. Flush toilets. Listen for gurgling elsewhere.
4. Check the basement. Look for water stains, efflorescence, damp smells and patches on the floor.
5. Look at the floor drain. Signs of backup include stains and debris.
6. Check the water heater. Age, rust and venting.

Common issues in older North York homes

• root-choked clay laterals
• Galvanized supply lines
• Lead service lines in pre-1950s homes
• Weeping tiles connected to the sanitary sewer
• Old water heaters venting into large chimneys

See sewer camera inspection, lead water pipes and galvanized pipe problems.