Frozen pipes are a genuine emergency — if left untreated, the expanding ice can split the pipe and cause significant water damage when the thaw occurs. In Sunderland and the North East of England, prolonged freezing temperatures can affect external pipes, exposed runs in unheated spaces such as loft conversions, garages, and outbuildings, and pipes running close to external walls. Our frozen pipe thawing service uses safe, controlled heating methods to gradually restore flow without creating hot spots that could stress the pipe and cause a fracture. We do not simply apply heat at one point and leave — we thaw progressively from the tap end back towards the water supply, allowing meltwater to escape rather than building pressure in the ice column. We carry specialist low-voltage pipe thawing equipment and trace heating tools suitable for different pipe materials including copper, plastic, and lead. Once flow is restored, we inspect the full run for signs of existing frost damage that could cause a burst when conditions change and advise on pipe lagging and insulation to prevent recurrence.
We identify which section of pipe has frozen by systematically checking flow at fixtures and feeling pipework in vulnerable locations — loft spaces, unheated cupboards, and external runs.
Using specialist equipment, we apply gentle, controlled heat to the frozen section, working progressively from the fixture end back towards the supply. This controlled approach prevents pressure build-up behind the ice.
As the ice melts, we monitor the pipe for movement and restore flow gradually. Once full flow is confirmed at the fixture, we check all joints and fittings along the thawed run for signs of frost damage.
We identify why the pipe froze — inadequate lagging, exposure to draughts, or heating gaps — and advise on pipe insulation or trace heating to prevent the problem recurring in future cold weather.
Frozen pipe thawing in the Sunderland area typically costs between £100 and £200 depending on the location and length of the frozen run. Simple accessible pipes at the lower end, longer runs in difficult locations such as lofts or behind finished walls at the higher end. We confirm the price before starting and there is no call-out fee.
You can attempt to thaw accessible pipes using a hair dryer on a low setting, moving slowly along the pipe from the tap end towards the stopcock. Never use a naked flame, and never apply intense heat at a single point as this can cause a burst. If the pipe is in a loft, behind a wall, or in a confined space, call a professional rather than risk a burst in an inaccessible location.
Turn off the mains stopcock immediately to stop water flow, then turn on all cold taps to drain the system. Turn off the central heating and immersion heater. If water is near electrical fittings or the consumer unit, turn off electricity at the main switch. Then call us — we can repair a burst pipe as an emergency.
Fit pipe lagging insulation to all exposed and vulnerable pipe runs — particularly in lofts, garages, and under floors near external walls. Keep the heating on a frost thermostat setting during extended cold weather rather than turning it off completely. For very exposed runs, self-regulating electric trace heating tape provides reliable freeze protection.