Water expands when it freezes. In an exposed or poorly insulated pipe, that pressure can split the pipe or damage a fitting. The leak may only become obvious when the ice thaws, which is why preparation matters.
Find and test your stopcock
Know where the main internal stopcock is before an emergency. It is commonly under the kitchen sink, beneath the stairs or near the point where the mains enters the building. Turn it gently to confirm it moves, then open it fully and turn it back slightly so it is less likely to seize. Never force an old valve.
Protect vulnerable pipework
Pipes in lofts, garages, cupboards against external walls and other unheated spaces are most at risk. Fit suitable pipe insulation with no gaps around bends or valves. Insulate cold-water storage cisterns correctly, but do not place insulation underneath a loft tank if warmth from the room below is intended to help protect it.
Deal with drips and small leaks
A dripping tap or weeping valve wastes water and can contribute to ice around outside outlets and wastes. Repair obvious faults before freezing temperatures arrive. Disconnect garden hoses and protect external taps with a suitable cover.
Keep some background warmth
If you are away during cold weather, use heating controls to maintain a safe low temperature. Open cupboard doors where pipework sits against a cold external wall so warmer room air can circulate. For a property left empty for longer, ask a competent plumber whether isolating and draining down the water system is appropriate.
What to do after a thaw
Inspect the pipe closely before reopening the stopcock. A split may be small and release water quickly once pressure returns. If in doubt, keep the supply off and call a plumber.
For winter leaks and pipe repairs across Basildon and nearby areas, call Essex Emergency Plumbing on 07939 013120.