One hour response
Same rate 7 days a Week
24/7 Service
Fast boiler repairs across South London and Surrey
A boiler breakdown rarely happens at a convenient time. It might be first thing in the morning when there’s no hot water, late in the evening when the heating cuts out, or right in the middle of a busy week when you simply need things working again. That’s why we focus on fast, practical boiler repairs across South London and Surrey, with clear advice from the moment you call.
At RCB Plumbing Ltd, we repair boilers for homeowners, landlords and local businesses who need a dependable response and a proper fix. Our engineers are Gas Safe registered and experienced in diagnosing faults quickly, whether the issue is obvious from the start or needs a more detailed inspection.
Boiler brands we regularly repair
We work on a wide range of boiler makes and models. Some of the brands we regularly repair include Vaillant, Glow-worm, Worcester Bosch, Ideal, Baxi, Main, Potterton, Viessmann, Alpha and Ferroli.
Different boilers tend to develop different faults over time. Some lose pressure regularly, some suffer ignition problems, and others begin showing fault codes without much warning. Because we work on these systems day in, day out, we’re able to spot common issues quickly and recommend the most sensible repair.
Fixed Price Repairs
Know exactly what you're paying before we start work, with transparent pricing that covers both parts and labour.
Same-Day Service
We prioritise emergency callouts with real-time engineer tracking, so you're never left wondering when help will arrive.
Qualified & experienced
Repairs for combi, system and regular boilers
Not every property has the same setup, and not every repair is straightforward. We carry out repairs on:
Combi boilers - Combi boilers are common in flats, smaller homes and modern properties where space is limited. When they go wrong, it often means losing both heating and hot water at once, so quick diagnosis matters.
System boilers - System boilers are often found in larger homes where higher hot water demand is more common. We repair faults affecting pressure, hot water recovery, heating circulation and controls.
Regular boilers - Older properties in South London and Surrey still often rely on regular or conventional boiler systems. These can involve separate tanks, cylinders and controls, which means fault-finding needs a more experienced approach.
What's Included
Boiler Service Plan - Warranty Booster
£12.50
/month + VAT
For keeping warranty valid
Essential Care Plan
£19
/month + VAT
For basic protection
Comfort Care Plan
£27
/month + VAT
For reliable family heating
Complete Care Plan
£35
/month + VAT
For total coverage
RCB Heat Club Home Care
£55
/month + VAT
Covering plumbing, drains and more
Features
Annual Boiler Service
Priority Service & Call Outs
Free of Charge Call Outs
1 Free Callout
Boiler and all internals
Labour Cost Discount
10%
100%
100%
100%
Replacement Part Discount
10%
20%
100%
100%
Loyalty Discount
10%
20%
30%
30%
Discount on new boiler installation**
10%
30%
50%
50%
Annual System Water Test
Annual System Anti Corrosion Treatment
Circulation pump
Thermostatic radiator valves
Timer/thermostat
Hot Water Cylinder
Radiators
Heating pipework
All gas supply pipes
System Powerflush (every 5 years)
Plumbing
Drains
Home Electrics
Optional Add-Ons
Unvented Cylinder Service
(Additional £6+VAT)
Gas Fire Service
(Additional £7.50+VAT)
Electrical Cover
(Additional £9+VAT)
Boiler Service Plan - Warranty Booster
£12.50
/month + VAT
For keeping warranty valid- ✔ Annual Boiler Service
- ✔ Priority Service
- ✔ 1 Free Callout
- ✖ Boiler Internals
Essential Care Plan
£19
/month + VAT
For basic protection- ✔ Annual Boiler Service
- ✔ Priority Service
- ✔ Free Callouts
- ✔ Boiler Internals
Comfort Care Plan
£27
/month + VAT
For reliable family heating- ✔ Everything in Essential
- ✔ System Water Test
- ✔ Anti Corrosion
Complete Care Plan
£35
/month + VAT
For total coverage- ✔ Full Heating System
- ✔ Pipework
- ✔ Powerflush
RCB Heat Club Home Care
£55
/month + VAT
Covering plumbing, drains and more- ✔ Plumbing
- ✔ Drains
- ✔ Electrics
Signs your boiler may need attention
Boiler pressure keeps dropping : If you’re topping up pressure regularly, there may be a leak somewhere in the system, a faulty pressure relief valve, or another issue that needs sorting properly.
Hot water keeps going hot and cold : This can point to issues with plate heat exchangers, sensors, valves or internal boiler components. It’s a common fault and one we deal with regularly.
Heating takes longer than usual to come on : If the heating is slow to respond or certain radiators are struggling to warm up, the issue may not just be with the boiler itself. We’ll look at the wider system as well.
Fault codes on the display : Modern boilers often display fault codes when something isn’t right. These can give a useful clue, but they still need proper diagnosis rather than guesswork.
Our trusted process
1. Survey
We discuss your heating needs and survey your property to recommend the perfect boiler system tailored to your specific requirements.
2. Quote
You'll receive a comprehensive, no-obligation quote outlining all costs, boiler options, and potential energy savings.
3. Job completed
Our Gas Safe engineers complete your installation efficiently, demonstrate the system, and provide all necessary documentation and warranties.
Signs your boiler may need attention
When your boiler breaks down, you don’t just want someone to turn up. You want someone who can explain the issue clearly, tell you what needs doing, and carry out the repair properly.
That’s a big part of how we work at RCB Plumbing Ltd. We keep things straightforward. If the repair is worthwhile, we’ll explain why. If the boiler is reaching the point where replacement may make more sense, we’ll be honest about that too.
A lot of our customers want fixed price repairs because they don’t want vague costs or uncertainty once work has started. That’s why we focus on transparency from the outset, so you know where you stand.
Why customers call us for boiler repairs
Same-day boiler repair appointments where possible
We know how disruptive it is to be without heating or hot water, especially in winter or in busy family homes. That’s why we aim to attend emergency boiler repairs as quickly as possible, with same-day service where availability allows.
In many cases, we can complete the repair on the first visit thanks to the range of common parts and diagnostic tools carried on our vans. Where a specific part is needed, we’ll explain the next step clearly and keep delays to a minimum.
Boiler repairs for landlords and managed properties
We also carry out boiler repairs for landlords, letting agents and managed properties across South London and Surrey. If a tenant reports no heating, no hot water, strange boiler noises or an ongoing fault code, we can attend promptly and help get the issue resolved without unnecessary back and forth. We understand that in rental properties, speed and clear communication matter just as much as the repair itself.
When a repair may not be the best option
Not every broken boiler should automatically be repaired. If the unit is older, parts are becoming difficult to source, or the cost of repair is starting to stack up against the value of the boiler, it may be worth considering replacement instead.
If that’s the case, we’ll say so plainly. We’re not here to push a new boiler when a repair makes sense, but equally we won’t recommend repeated repair work on a boiler that’s becoming unreliable and expensive to keep going.
Help looking after your boiler after the repair
Once your boiler is repaired, ongoing maintenance makes a big difference. Regular servicing, system water checks, corrosion protection and dealing with smaller issues early can all help reduce the chance of another breakdown later on.
That’s why many customers also look at our boiler care plans after a repair. They’re a practical way to stay on top of servicing and reduce the stress of unexpected faults.
Local boiler repair engineers you can call with confidence
We repair boilers across South London and Surrey for customers who want a prompt response, honest advice and professional workmanship. Whether it’s a Vaillant with a fault code, a Glow-worm that won’t fire up, or a Worcester Bosch boiler that’s losing pressure, we’ll aim to get to the bottom of it quickly and put it right properly.
Frequently Asked Question
How quickly can you fix my boiler?
For emergency repairs, we aim to be with you on the same day. In most cases, we can complete repairs on our first visit as our vans are stocked with common parts for all major brands.
What if my boiler can't be repaired?
If your boiler is beyond economical repair, we'll provide honest advice and a free, no-obligation quote for a replacement system. We never recommend replacement unless absolutely necessary.
Do you charge for callouts?
Our callout fee is included in our transparent fixed-price repairs. You'll know the full cost before we begin any work, with no hidden extras.
What boiler brands do you repair?
Our engineers are trained to repair all major brands including Worcester Bosch, Vaillant, Baxi, Ideal, Viessmann, Potterton, and many more.
Do you offer any guarantees on repairs?
Yes, all our boiler repairs come with a 12-month guarantee on both parts and labour for complete peace of mind.
ready to upgrade your heating system?
Contact us today.
Contact RCB Plumbing Ltd today to discuss your new boiler installation and start enjoying more efficient, reliable heating.
RCB Plumbing serves local homes and businesses with honest advice, prompt response, and professional workmanship every time.
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