A boiler breakdown is never convenient – and it's even worse on a cold night, a weekend, or during a bank holiday. Whitebox Heating provides genuine 24/7 emergency boiler callouts across the full RH and BN postcode area. Call us any time and we'll do our utmost to be with you within 2 hours.

We don't just say 24/7 – our engineers actually respond to emergency calls throughout the night, over weekends, and on bank holidays.
We aim to reach all emergency callouts within 2 hours. For most locations in our coverage area, we can achieve this even during busy periods.
Our emergency engineers carry the most common boiler parts for all major brands, maximising the chance of a first-visit fix.
We give priority to elderly residents, households with young children, and any situation where lack of heating is a welfare concern.
We confirm our emergency callout rate before visiting. We don't add unreasonable out-of-hours surcharges – our pricing is fair and transparent.
Every emergency engineer is Gas Safe registered and carries all required identification. We never send unqualified individuals to your home.
Call 07703 530336 any time, day or night. We'll assess your situation and confirm an engineer is on the way.
We despatch the nearest available engineer to your location immediately.
Our engineer diagnoses the fault as quickly as possible and provides an upfront repair cost.
We complete the repair, fully test your heating, and make sure you're warm before we leave.
We provide emergency boiler repair services across West Sussex, East Sussex, and Surrey. Click your area for a location-specific page.
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Call now for same-day availability – no waiting, no fuss.
Any situation where you have no heating or hot water, your boiler is making alarming noises, or you suspect a gas leak. For gas leaks, call National Gas on 0800 111 999 immediately and leave the property before calling us.
We aim to reach emergency callouts within 2 hours across our coverage area. Call 07703 530336 and we'll give you a realistic ETA based on engineer availability at that moment.
We charge a fair emergency callout rate which we confirm before visiting. We believe heating emergencies shouldn't come with punishing surcharges. Ask for our current rates when you call.
Do not touch any electrical switches. Open windows if safe to do so. Leave the property immediately. Call the National Gas Emergency line on 0800 111 999 – this is a free 24/7 service. Only call us once you are safely outside.
If it's safe, check that your boiler's pressure gauge reads between 1 and 1.5 bar, and try resetting the boiler once per the manufacturer's instructions. If the problem is unresolved, leave it alone – our engineer will handle the rest.
Get in touch
Call us now for a free quote or to book a same-day visit.
In the BN6 area? Boiler breakdown repairs in Coombes are handled by our local West Sussex team — 2-hour target response.
Need emergency heating repair in Brighton? Our BN1 & BN2 engineers aim to reach you within 2 hours, day or night.