
What’s Going Wrong With Your Plumbing?
Start with the symptom. Learn what may be causing leaking pipes, pressure problems, running toilets, frozen pipes, loss of water and other common plumbing problems.
You Don’t Need to Know What’s Broken Yet.
Plumbing problems often show themselves somewhere other than where they actually begin. Water beneath a cabinet might come from a drain connection, faucet, supply line or seal. Weak water pressure could affect one fixture or the entire home for very different reasons.
The guides below are organized around what you can actually observe. Start with the problem that most closely matches your situation, then work through the likely causes and appropriate next steps.
Choose the Problem You’re Experiencing
Each guide focuses on symptoms, possible causes, safe checks and signs that professional attention may be needed.
Leaking Pipe
Water stains, damp cabinets, dripping connections or unexplained moisture around your home’s plumbing.
Burst Pipe
Sudden water release, rapidly spreading moisture or significant loss of water from a damaged pipe.
Frozen Pipes
Little or no water during freezing weather, frost on exposed piping or concern about a pipe freezing.
Low Water Pressure
Weak flow at one fixture, several fixtures or throughout the home can point to very different plumbing issues.
High Water Pressure
Excessive pressure can place unnecessary stress on fixtures, valves, supply lines and household plumbing.
Running Toilet
A toilet that continues filling, cycles by itself or constantly sends water into the bowl.
Leaking Faucet
Dripping from the spout, water around the faucet base or moisture beneath the sink when the faucet is used.
No Water
No water at one fixture or throughout the property? The location of the problem is an important first clue.
The Symptom and the Cause Aren’t Always in the Same Place.
Your home’s plumbing is a connected system. Water enters the property, moves through supply piping and valves to fixtures and appliances, and then leaves through a separate drainage system.
That matters when troubleshooting. A problem at one fixture may be isolated to that fixture, while the same symptom across several areas of the home can indicate something further upstream in the plumbing system.
Check whether the symptom occurs in only one location or at several fixtures.
A leak that appears only while water is running provides a different clue from a continuous leak.
Freezing weather, recent repairs, new appliances or sudden pressure changes can help narrow the cause.

Four Useful Things to Check First
Find the Water Source
If water is visible, determine where it first appears rather than assuming the nearest pipe or fixture is responsible.
Check Other Fixtures
Testing another faucet, toilet or fixture can help determine whether the problem is isolated or affecting a larger area.
Know Your Shutoff
Knowing the location of fixture shutoffs and the home’s main water shutoff can be important if a leak becomes more serious.
Document What You See
Photos, unusual sounds and information about when the problem occurs can make professional diagnosis more efficient.
Stop the Water Before You Start Diagnosing the Damage.
If water is actively escaping and can be shut off safely, stop the water supply first. Move people and valuables away from the affected area and seek help if the situation is beyond a minor controllable leak.
Understanding Your Plumbing Can Prevent Bigger Surprises.
Beyond troubleshooting individual problems, knowing what is installed in your home can help you make better decisions about maintenance, repairs and future upgrades.
The age of your home, piping materials, previous renovations, water pressure and the condition of valves and connections can all influence how the plumbing performs over time.
How to Identify Poly-B Plumbing
Not sure whether the grey pipes in your home are Poly-B? Learn where to look, how to check for PB2110 markings, what fittings and connections may look like, and how Poly-B differs from PEX.
Read the Poly-B identification guide →Found the Problem? Proflow Can Handle the Repair.
These guides are designed to help you understand what may be happening. They are not a substitute for professional diagnosis when a plumbing problem involves concealed leaks, damaged piping, recurring failures or work beyond a safe homeowner check.
Describe What You’re Seeing. We’ll Help With the Next Step.
Proflow provides plumbing services throughout Vancouver, the Lower Mainland and our British Columbia service areas.