Boiler Today
Boiler Servicing & Repairs in Sussex, Surrey & Surrounding Areas
Your heating should just work. When it doesn't — or when it needs its annual check — we're the local team Sussex and Surrey homeowners call first.
Gas Safe registered. 36 years of experience. Straightforward from start to finish.
Get a FREE QuoteGas Safe Registered
Reg No. 575142 — fully certified engineers
Annual servicing protects warranty
Gas Safe Boiler Repairs
Keeping Sussex & Surrey Homes Warm for Over 36 Years
We're not the biggest company in the area. We're just the most trusted one on your street.
Boilers On-Demand has been servicing and repairing boilers across Sussex and Surrey since 1988. Gas Safe registered (No. 575142), fully certified, and built entirely on word-of-mouth from homeowners who'd recommend us without hesitation.
Annual Boiler Service
What We Do
One hour a year. That's all it takes to keep your boiler safe, efficient, and fully under warranty. For repairs, we offer same-day callouts — diagnosing quickly, quoting clearly, and fixing it right the first time. Carried out by our Gas Safe Engineers — fully documented and ready when you are.
Annual Boiler Servicing
- Boiler pressure check and adjustment
- Flue inspection and combustion analysis
- Carbon monoxide (CO) safety check
- Internal component review and cleaning
- Full boiler function test
- Written service documentation
- Advice on any issues identified
Emergency Repairs
Boiler Repairs
Something's wrong. You want it fixed today, not next week. We offer same-day callouts across Sussex and Surrey, covering all major brands — Vaillant, Worcester Bosch, Baxi, Glow-worm, and more. We diagnose quickly, quote clearly, and fix it right the first time.
Common Boiler Faults We Fix
- No heat or hot water
- Boiler keeps switching off
- Low boiler pressure
- Radiators not heating up
- Strange banging or kettling noises
- Pilot light going out
- Error codes on the display
- Boiler leaking water
Major Brands We Repair
- Vaillant
- Worcester Bosch
- Baxi
- Glow-worm
- Ideal
- Potterton
- Viessmann
- Alpha
How Fast Can We Attend?
- Same-day response where possible
- Priority slots for vulnerable customers
- Next-day guaranteed availability
- Call 01903 802395 for fastest response
- Serving Sussex & Surrey every day
How Fast Can We Attend?
Call us now on 01903 802395. Same-day callouts are available across Sussex and Surrey where possible. We prioritise emergency breakdowns and keep you warm as quickly as we can.
Warning Signs
Signs Your Boiler Needs Attention
Catching problems early gives you time to plan — and almost always saves money compared to waiting for a full breakdown. If you notice any of these signs, call us before it becomes an emergency.
Catch these early and a small call-out today saves a much bigger bill tomorrow.
Call us on 01903 802395 — we'll talk it through with you straight away.
Pricing
Honest Pricing. No Surprises.
Annual servicing typically runs £80–£120. For repairs, costs depend on the fault and parts involved. Either way, you'll receive a clear quote before anything starts. What we quote is what you pay. If you're weighing up whether to service, repair, or replace — we'll give you an honest steer, not a sales pitch.
Boiler Service vs Boiler Replacement
What's Included in Our Pricing
- Annual boiler serviceFixed price
- Emergency calloutSame-day
- Boiler repair diagnosisUpfront quote
- Parts & labourAll included
- Written documentationStandard
- Finance availableSubject to status
Why Us
What You Get Every Time
We are not a call centre. We are local Gas Safe engineers who have been keeping Sussex and Surrey homes warm since 1988. Word-of-mouth built us. These are the standards that keep us.
Gas Safe Registered — No. 575142
Every job legal, certified, and done to the highest standard.
36+ Years Local Experience
We know these homes. We know these systems. It shows.
All Major Brands
Vaillant, Baxi, Worcester Bosch, Glow-worm — whatever you have, we know it.
Same-Day Callouts
Because a cold house can't wait.
Upfront Pricing
Always. No exceptions.
30+ Five-Star Reviews
Our customers say it better than we ever could.
Customer Reviews
What Our Customers Say
Paul Coventry has completed a successful job replacing my old back boiler with a new one in the loft. Also replaced my cold water tank and smartened up pipe work. Really good attitude and attendance etc. Knows his stuff.
Dave Saunders
3 months ago
Prompt, communicative, cost effective and professional.
Adam Knight
3 months ago
Just had Paul from cpl come to instal a new under sink hot water system, sink and vanity unit. Very impressed with professional he is.
Carl Roper
4 months ago
Brilliant customer service, lovely friendly chap that explained everything to us that we were unsure of.
Joe Hayes
5 months ago
Top Service — We have had boiler services, radiator instals and movements, bathroom plumbing. Thoroughly recommend.
Stu MacGarvie
9 months ago
Great communication, speedy install (arrived on time, installed and commissioned boiler in a day) and great tidy up. Very happy.
Robin Howard
6 months ago
Learn More About Gas Boilers:
● FAQs
Questions We're Often Asked
Everything you need to know before booking.
How often should I service my boiler?
Once a year. It keeps the system safe, efficient, and your warranty intact.
What's included in a service?
Pressure test, flue and combustion check, carbon monoxide inspection, internal component review, full function test, and written documentation.
How long does it take?
Around 45 minutes to an hour. We leave your home exactly as we found it.
Do you need to be Gas Safe registered?
By law, yes. Every engineer on our team carries their Gas Safe ID and will show it on arrival.
How fast can you reach me for a repair?
Same-day where possible. Call 01903 802395 and we'll get to you as quickly as we can.
● AREAS WE COVER
Where We Work
Sussex, Surrey, and surrounding areas. Local engineers — faster response times. We know these homes.
Worthing | Horsham | Guildford | Crawley | Brighton | Chichester | Bognor Regis | Littlehampton | Haywards Heath | East Grinstead
Not on the list? Call us, we will most likely cover you.
Ready When You Are
Annual service. Emergency repair. Or just a question you'd like answered honestly.
Our Gas Safe engineers cover Sussex and Surrey every day. Whether it's a routine check or a sudden breakdown, we're here to help. Call 01903 802395 for a same-day response.
Request Your Free Quote
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30+
GOOGLE REVIEWS
1,000+
NEW BOILERS INSTALLED
36+
YEARS EXPERIENCE