How to Prevent Burst Pipes in Richmond Hill Winters

Every winter, a handful of Richmond Hill homes make the emergency-call list for the same reason: a pipe in an unheated space froze overnight and split. Mill Pond's older homes with crawl spaces, Jefferson's garage plumbing, and any home with pipes in exterior walls are the usual victims. The damage isn't the freeze itself — it's the thaw, when pressurized water pours through the split for hours before anyone notices.

Where Pipes Freeze in Richmond Hill Homes

• Garages: supply lines to garage sinks and hose bibs. A −20°C night with the garage door left open is enough.
• Crawl spaces and unfinished basements: common in older Mill Pond and Crosby homes.
• Exterior walls: kitchen and bathroom lines on north-facing walls with minimal insulation.
• Near foundation cracks: cold air infiltration chills pipes even inside the thermal envelope.

Prevention Checklist Before the First Deep Freeze

1. Disconnect garden hoses and shut off exterior hose bibs at the interior valve; open the outside tap to drain.
2. Insulate exposed pipes in garages, crawl spaces and unfinished areas — foam sleeves cost a few dollars a metre.
3. Seal foundation gaps where pipes pass through walls; expanding foam does both jobs.
4. Keep heat at 15°C minimum even when away — the savings aren't worth a flood.
5. Open cabinet doors on exterior-wall plumbing during extreme cold so room heat reaches the pipes.
6. Let a faucet trickle during −20°C snaps; moving water resists freezing.

If a Pipe Freezes Anyway

Turn off the main water valve immediately, then open the affected faucet to relieve pressure. Thaw with warm air — a hair dryer or space heater — never an open flame. If the pipe has split, or you can't locate the freeze, call us: 24/7 emergency service means a licensed Richmond Hill plumber, typically within the hour.

Prevention takes a Saturday afternoon. A burst-pipe flood takes your basement, your flooring and often your insurance deductible. If you'd like a winter plumbing check — insulation review, valve test, hose-bib shutoff — book a service call before the cold snap.