System Boiler Installation UK
Perfect for larger homes with high hot water demand. Multiple taps and showers running simultaneously without losing pressure.

Why Choose System Boilers?
System boilers are ideal for larger homes with high hot water demand. They store hot water in a separate cylinder, allowing multiple taps and showers to run simultaneously.
High Volume Supply
Multiple outlets can be used simultaneously without pressure loss or temperature fluctuation.
Consistent Temperature
Pre-heated water ensures constant temperature delivery to all outlets in your home.
Perfect for Large Homes
Ideal for properties with 2+ bathrooms and high simultaneous hot water usage.
How System Boilers Work
System boilers heat water and store it in a hot water cylinder, typically located in an airing cupboard. The sealed system design means most components are built into the boiler, requiring less pipework and making installation more straightforward than conventional boilers.
Sealed System
No cold water tank needed in the loft space
Hot Water Storage
Large cylinder provides ample hot water supply
Multiple Outlets
Run several taps and showers simultaneously

System Boiler Benefits
Perfect for 2+ bathrooms
Ideal for larger family homes
High flow rates
Multiple outlets without pressure loss
Solar compatible
Works with solar thermal systems
No loft tank needed
Saves space and prevents freezing
Fast delivery
Quick hot water to all outlets
Family-friendly
Perfect for busy households
Our Installation Process
Our custom cylinder sizing and pressurisation services ensure your system boiler meets your exact hot water requirements with professional installation throughout.
1. Home Assessment
Detailed survey to determine optimal cylinder size and system requirements for your property.
2. Expert Installation
Professional fitting with custom cylinder sizing and complete system pressurisation by certified engineers.
3. Full Commission
Complete system testing, commissioning, and handover with comprehensive warranty coverage.
Premium Boiler Brands
We install premium system boilers from the UK's most trusted manufacturers with excellent warranties and support.
Worcester Bosch
Greenstar range system boilers with excellent efficiency ratings and up to 15-year warranties.
Ideal Heating
Logic+ system boilers with smart controls and British manufacturing excellence.
Viessmann
Vitodens range with advanced modulation technology and German engineering quality.
Frequently Asked Questions
What's the difference between system and combi boilers?
System boilers store hot water in a cylinder for high demand situations, while combi boilers heat water on-demand. System boilers are better for larger homes with multiple bathrooms and high simultaneous usage.
How much space does a system boiler need?
You'll need space for both the boiler unit and a hot water cylinder, typically in an airing cupboard. Our engineers will assess the best locations during your free survey and recommend optimal positioning.
Can I upgrade from a combi to a system boiler?
Yes, though it requires installing a hot water cylinder and additional pipework. We'll assess feasibility and provide a detailed quote during your free survey, including any necessary modifications.
Ready for Your System Boiler Installation?
Get expert advice and a free quote from our Gas Safe registered engineers.