A burst pipe is one of the most stressful plumbing emergencies a Coquitlam homeowner can face. Water can pour out at a rate of hundreds of litres per hour, soaking drywall, flooring, and personal belongings in minutes. Knowing exactly what to do in the first few minutes — before a licensed plumber arrives — can mean the difference between a minor repair bill and a five-figure restoration project.
Step 1: Shut Off the Main Water Supply Immediately
Your first action is to stop water from entering the burst pipe. Locate your home's main shut-off valve — typically in the basement near the water metre, or outside near the foundation — and turn it clockwise (righty-tighty) until fully closed. If you have never done this before, now is the time to find it so you are not searching in a panic. Every adult in your household should know where this valve is.
Step 2: Turn Off the Water Heater
With the main supply off, protect your water heater by switching it off at the breaker (electric) or setting it to "pilot" mode (gas). Running a water heater dry can permanently damage the tank and heating elements — an expensive secondary problem you do not want.
Step 3: Drain the Remaining Water
Open cold-water taps throughout the house to drain the pressure out of the system. Start from the highest floor and work downward. Flush toilets once to empty the tanks. This reduces the amount of water that can continue to leak through the burst section.
Step 4: Electricity and Safety Check
If water is near electrical outlets, breaker panels, or appliances, do not enter that area. Turn off the electricity to affected rooms at your main breaker panel. Water and electricity together create an immediate life-safety risk. If in any doubt, stay out of the room and call BC Hydro's emergency line.
Step 5: Document the Damage for Insurance
Before any cleanup begins, take photos and video of the burst pipe, standing water, and all affected areas. Your home insurance claim will depend on this documentation. Note the time the pipe burst and what you observed.
Step 6: Call a Licensed Emergency Plumber in Coquitlam
Once the immediate threat is contained, call a licensed emergency plumber. At Hippo Plumbing & Heating, we provide 24/7 emergency plumbing service throughout Coquitlam, Port Coquitlam, Port Moody, and the surrounding Tri-Cities area. Our TSBC-licensed technicians arrive quickly, assess the damage, repair the burst section, and ensure the rest of your system is sound before we leave.
What Causes Pipes to Burst in Coquitlam?
- Freezing temperatures: Even in the Lower Mainland, overnight lows can freeze pipes in unheated crawl spaces, garages, and exterior walls. Water expands as it freezes and splits the pipe from the inside.
- Poly B piping: Homes built between the late 1970s and mid-1990s may have polybutylene (Poly B) pipes, which are prone to sudden failure from chlorine degradation and physical stress.
- Corrosion: Older copper or galvanized steel pipes develop pinhole leaks and eventually rupture under normal water pressure.
- High water pressure: Normal household pressure is 40–80 psi. Sustained pressure above 80 psi stresses joints and fittings until something gives way.
- Ground movement: Seasonal soil shift in the Lower Mainland can flex underground supply lines until they crack.
How to Prevent Burst Pipes in Future
- Insulate pipes in unheated spaces (crawl spaces, garages, exterior walls) with foam sleeves before winter.
- Let a cold-water tap drip slowly during extreme cold snaps to keep water moving.
- Have a licensed plumber install a pressure-reducing valve (PRV) if your pressure exceeds 80 psi.
- Replace Poly B piping proactively — do not wait for it to fail.
- Schedule an annual plumbing inspection to catch corrosion or weak joints early.
Frequently Asked Questions
How quickly can a burst pipe flood my home?
A 1-inch burst main can release over 500 litres per hour. Even a smaller half-inch pipe failure can flood a basement in under an hour. Speed is critical — shut off the main valve first, then call for help.
Does home insurance cover burst pipes in BC?
Most standard home insurance policies in BC cover sudden and accidental water damage from burst pipes. However, gradual leaks, neglect, or maintenance-related failures are typically excluded. Document everything and call your insurer as soon as the emergency is under control.
How much does emergency plumbing cost in Coquitlam?
Emergency after-hours call-outs typically include a service fee plus parts and labour. The total cost depends on the severity of the break, pipe material, and access difficulty. Getting a burst pipe fixed fast is almost always far cheaper than the water damage restoration that follows a delayed response.
If you have a plumbing emergency right now, call Hippo Plumbing & Heating at (604) 365-0812. We are available 24 hours a day, 7 days a week, for emergency plumbing service across Coquitlam and the Tri-Cities.