Boiler Repair
Same-Day Repairs Across RH & BN Areas
When your boiler breaks down, you need it fixed fast. Whitebox Heating provides same-day boiler repair across West Sussex, East Sussex, and Surrey. All our engineers are Gas Safe registered, carry genuine parts, and operate 7 days a week.

What to Expect From Our Boiler Repair Service
Same-Day Repairs
We offer same-day appointments for most boiler faults. Our engineers carry a wide range of spare parts to fix the majority of breakdowns on the first visit.
All Makes & Models
We repair Worcester Bosch, Vaillant, Ideal, Baxi, Potterton, Glow-worm, Viessmann, Intergas, and more. Whatever your boiler brand, we can fix it.
Transparent Pricing
You'll receive a clear, upfront quote before any work begins. Our call-out fee covers the first hour of labour, and there are no hidden charges.
Gas Safe Registered
All Whitebox Heating engineers are Gas Safe registered. You can verify our registration on the official Gas Safe Register website.
Genuine Parts Only
We use genuine manufacturer parts on all repairs to ensure reliability and maintain your boiler warranty. No cheap substitutes.
Aftercare Included
Once your repair is done, we provide aftercare advice to help you avoid the same problem in the future. We're always available if you have follow-up questions.
How It Works
Call Us
Call our team on 01293 000 000. We'll take your details and confirm same-day availability.
We Diagnose
Our engineer visits, diagnoses the fault, and provides a clear upfront quote before starting any work.
We Fix It
We complete the repair using genuine parts, then test the boiler fully before leaving.
All Clear
We explain what was done, advise on any follow-up, and issue your Gas Safe paperwork where applicable.
Boiler RepairAcross RH & BN Areas
We provide boiler repair services across West Sussex, East Sussex, and Surrey. Click your area for a location-specific page.
Ready to book?
Call now for same-day availability – no waiting, no fuss.
Boiler Repair – FAQ
How much does boiler repair cost?
The cost depends on the fault and the parts required. Our call-out fee includes the first hour of labour. Most common repairs fall in the range of £80–£300 including parts. We'll confirm the exact cost before starting work.
Can you fix my boiler today?
In most cases, yes. Call us on 01293 000 000 and we'll confirm same-day availability. We operate across the full RH and BN postcode area seven days a week.
My boiler keeps showing an error code. What should I do?
Error codes vary by manufacturer. Reset the boiler once as described in your manual. If the error persists, call us – our engineers can diagnose the fault quickly using the code alongside their experience with that model.
Is my boiler worth repairing or should I replace it?
As a rule of thumb, if the repair cost exceeds half the cost of a new boiler and the boiler is over 10 years old, replacement is often better value in the long run. We'll always give you an honest assessment – we won't push repairs that don't make financial sense.
Do you offer a guarantee on repairs?
Yes. We guarantee our workmanship. If the same fault recurs within a reasonable period after our repair, we'll investigate and rectify it. Parts are covered by manufacturer guarantees.
Get in touch
Book a Boiler Repair Engineer Today
Call us now for a free quote or to book a same-day visit.