Hot Water Cylinders
Your hot water cylinder plays a crucial role in supplying your home with constant hot water for everyday use. When it’s working efficiently, you hardly notice it, but when issues arise, it can disrupt your entire routine. At RCB Plumbing Heating Renewables, we offer comprehensive hot water cylinder servicing for homes across Epsom, Sutton, Carshalton and the wider Surrey area, ensuring your system remains reliable, safe and energy-efficient all year round.

Hot Water Cylinder Servicing in Epsom, Sutton, Carshalton and Across Surrey
Regular maintenance of your hot water cylinder is essential for keeping your home running smoothly. Whether you rely on a vented or unvented system, routine checks help prevent unexpected failures, extend the life of your cylinder, and keep your household supplied with hot water all year round.
Prevent Leaks & Pressure Issues
Over time, cylinders can suffer from corrosion, valve faults or limescale build-up. Regular inspections help prevent minor issues turning into major disruptions.
Improve performance & Efficiency
A well-maintained cylinder heats water faster, stores it more effectively, and delivered better pressure, helping to reduce energy bills and improve comfort

What Our Hot Water Cylinder Service Covers
From brand-new installations to quick repairs and ongoing maintenance, we offer complete support for all types of hot water cylinders. Whether you're upgrading to a more efficient system or resolving a fault, our qualified engineers ensure the job is done safely, professionally and to the highest standards.
Inspect all valves, thermostats and pressure controls
These components regulate water temperature and system pressure. A fault in any of them can lead to overheating, inconsistent water flow, or even a complete system failure. We test and calibrate each part to ensure they’re functioning correctly and safely.
Test the immersion heater and safety devices
The immersion heater acts as the core of your system’s heating process. We test its responsiveness and power output to confirm it’s working efficiently. We also inspect all safety devices, including cut-off switches and expansion controls, to ensure the system is protected from overpressure and overheating.
Check insulation and pipework for damage or heat loss
Damaged insulation or exposed pipework can lead to significant heat loss and increased energy use. We assess all insulation materials and pipe connections, replacing or repairing them where necessary to maintain heat efficiency and reduce waste.

Why Choose RCB Plumbing Heating Renewables for Your Hot Water Cylinder Service?
Experienced Hot Water Specialists
Our team has extensive experience servicing all types of hot water cylinders, including vented, unvented, and thermal store systems. Every service is tailored to your system to ensure lasting performance and efficiency.
Thorough, Safety-Focused Inspections
We take the time to carry out each service carefully, focusing on both performance and safety. From pressure testing to valve inspections, we make sure every part of your cylinder operates as it should.
Improved Efficiency and Lower Energy Costs
Our approach ensures your system runs as efficiently as possible. Cleaning and fine-tuning internal components helps reduce heating times and energy use, saving you money over the long term.
Preventive Maintenance for Long-Term Reliability
We identify early warning signs before they lead to breakdowns. By addressing small issues promptly, we extend your cylinder’s lifespan and minimise costly disruptions.
Quality Parts and Dependable Aftercare
We use high-quality replacement parts when required and provide professional aftercare advice to help you maintain your system between services.
Trusted Local Service Across Surrey
Proudly serving Epsom, Sutton, Carshalton, and surrounding areas, our reputation is built on honesty, reliability, and consistent results. Homeowners choose us for our clear communication, professional approach, and commitment to quality.
Our Hot Water Cylinder Service Process
We take a structured, step-by-step approach to ensure your hot water cylinder installation, repair or replacement is handled with care and precision. From your first enquiry to a fully operational system, our process is designed to keep things simple, transparent and stress-free.
1. Initial Consultation
We listen to your needs, assess your current setup, and offer expert guidance on the best solution, whether you're upgrading, replacing or installing from scratch.
2. Transparent Quotation
You'll receive a clear, no-obligation quote with all costs and options outlined. We explain everything upfront so you can make an informed decision with confidence.
3. Expert Installation
Our fully qualified engineers carry out the work to the highest standards, ensuring your cylinder is safe, compliant and performing at its best, with minimal disruption to your home.
Frequently Asked Questions
Get answers to common questions about our hot water cylinder services.
It’s recommended to have your hot water cylinder serviced once every 12 months. Annual servicing ensures your system runs safely, maintains efficiency, and remains free from damage or wear that could lead to costly repairs. Over time, components such as valves, thermostats, and immersion heaters can deteriorate or become less responsive. By checking these regularly, you prevent breakdowns and keep your system performing like new. Regular servicing also helps reduce energy waste and keeps your water heating costs under control.
Yes, our engineers are fully trained to service all types of hot water cylinders, including vented, unvented, and thermal store systems. Each cylinder type operates slightly differently, vented cylinders rely on gravity-fed systems and a cold-water storage tank, while unvented systems connect directly to the mains to deliver higher water pressure. Our team understands the unique servicing requirements of each and ensures every safety feature and control mechanism is checked thoroughly for reliability and compliance.
Yes. By law, unvented hot water cylinders must be installed and maintained by G3-certified professionals. All our engineers are fully qualified and compliant with current building regulations.
A standard like-for-like cylinder replacement can usually be completed in a day. More complex system upgrades may take slightly longer , we’ll always provide clear timelines before we begin.
If we identify a worn or faulty component during your service, we’ll always explain the issue clearly and discuss your options before carrying out any replacements. We only use high-quality, manufacturer-approved parts, ensuring compatibility and reliability. In many cases, small replacements, such as pressure valves or thermostats, can be fitted immediately during the same visit, saving you time and additional callout costs.
Keep Your Hot Water System Working Perfectly in Epsom, Sutton, Carshalton and Surrey

