--- title: Frozen Condensate Prevention | Trusted Boilers description: Frozen condensate pipes cause winter boiler lockouts. Learn safe thawing steps and prevention tips for South London and North Surrey homes. image: https://www.trustedboiler.co.uk/hubfs/AI-Generated%20Media/Images/A%20cold%20day%20in%20a%20residential%20london%20street%20the%20image%20suggests%20the%20temperature%20is%20below%20zero.png --- [info@trustedboiler.co.uk](mailto:info@trustedboiler.co.uk) [+44 7962389588](tel:447962389588) Operating Hours: Monday - Friday 9am to 5pm [128 City Road, London, EC1V 2NX](https://maps.app.goo.gl/dZWugXN2aW2tVucq5) [0208 088 9899](tel:0208%20088%209899) [![trusted boilers logo](https://www.trustedboiler.co.uk/hs-fs/hubfs/trusted%20boilers%20logo.webp?width=1684&height=200&name=trusted%20boilers%20logo.webp "trusted boilers logo")](https://www.trustedboiler.co.uk/) [![trusted boilers logo](https://www.trustedboiler.co.uk/hs-fs/hubfs/trusted%20boilers%20logo.webp?width=1684&height=200&name=trusted%20boilers%20logo.webp "trusted boilers logo")](https://www.trustedboiler.co.uk/) - [Home](https://www.trustedboiler.co.uk) - 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In freezing weather, this pipe can ice up, causing your boiler to lock out for safety. It’s one of the most common winter faults across Sutton, Wallington, Croydon and Wimbledon.   ## Signs Your Condensate Is Frozen ## Safe Thawing Steps ## Prevent Freezing Next Time ## When to Call an Engineer   ## We Can Help We fix frozen condensate issues across South London and North Surrey and can re‑route or upgrade your pipework to prevent repeat lockouts. 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