System Boiler Installation Across Bedfordshire, Hertfordshire, Buckinghamshire and North London
A system boiler with a hot water cylinder delivers hot water to multiple taps and showers simultaneously. Our Gas Safe engineers install system boilers across Bedfordshire, Hertfordshire, Buckinghamshire and North London.
System Boiler Installation Services
Powerful hot water performance for larger homes and busy families.
Multiple Bathroom Ready
A system boiler works with a hot water cylinder to supply two or more taps and showers at once without a drop in pressure. Ideal for larger homes and busy families.
Built In Components
System boilers have the pump, expansion vessel and safety devices built in. Cleaner installation with fewer external components compared to a conventional boiler.
Hot Water Storage
The hot water cylinder stores heated water ready for use. Up to 24 hours of hot water retention with modern high efficiency cylinders. Hot water available instantly.
Solar Compatible
System boilers can work with solar thermal panels. The cylinder can accept a secondary heat source, reducing gas consumption on sunny days.
System Boiler Replacement
Replacing an old system boiler with a new A-rated model. Usually completed in one day. We can also replace the hot water cylinder at the same time if needed.
Combi to System Conversion
Upgrading from a combi boiler to a system boiler with cylinder for better hot water performance. Ideal when you have added bathrooms or your hot water demand has increased.
What Our System Boiler Installation Includes
Why Choose Us for System Boiler Installation
Correctly Specified
We size the system boiler and cylinder to match your hot water demand. Right sized equipment means reliable hot water and efficient operation.
Gas Safe Engineers
All our engineers are Gas Safe registered. Your system boiler installation is safe, compliant and registered with Gas Safe.
Cylinder Expertise
We install unvented cylinders, vented cylinders and thermal stores. Our engineers hold the G3 qualification for unvented hot water systems.
Local Across Four Counties
Our system boiler installation engineers cover Bedfordshire, Hertfordshire, Buckinghamshire and North London.
System Boiler Installation Near You
Our system boiler installation engineers cover homes across four counties.
System Boiler FAQs
Common questions about system boilers
Is a system boiler right for my home?
A system boiler is ideal for larger homes with two or more bathrooms. If you regularly need hot water to multiple taps at the same time, a system boiler with a cylinder delivers better performance than a combi boiler.
What size system boiler do I need?
System boiler size depends on the number of radiators, the size of your home and how well insulated it is. Common sizes are 18kW to 30kW for most homes. We survey and advise the correct size.
What size hot water cylinder do I need?
Cylinder size depends on the number of bathrooms and occupants. A typical family home needs a 150 to 210 litre cylinder. We calculate your hot water demand and recommend the right size.
How long does a system boiler installation take?
A system boiler replacement usually takes one day. If we are also replacing the hot water cylinder it takes longer. A complete new system boiler installation takes 2 to 3 days.
Can I keep my existing hot water cylinder?
Usually yes if the cylinder is in good condition and compatible. We check the cylinder during the survey. If your cylinder is old or leaking we recommend replacing it at the same time.
What is the difference between a system boiler and a combi boiler?
A system boiler works with a hot water cylinder to store hot water. A combi boiler heats water on demand with no cylinder. System boilers are better for larger homes with high hot water demand.
System Boiler Installation Enquiry
Tell us about your home and we will specify the right system boiler.
Prefer to call? 0330 043 3748