Installation
System Boiler Installation
System boilers work with a separate hot water cylinder to deliver high volumes of hot water to multiple outlets simultaneously. They're the ideal choice for larger homes with 2 or more bathrooms where demand for hot water is high.
From £1,199 1–2 days Gas Safe Registered
What's Included
- System boiler supply and installation
- Hot water cylinder installation or replacement
- Expansion vessel and pressure relief valve
- New flue
- System flush and inhibitor
- Magnetic filter
- Full commissioning and pressure test
- Manufacturer warranty registration
At a Glance
Starting Price£1,199
Typical Duration1–2 days
CategoryInstallation
QualificationGas Safe Registered
LocationCorby & Northamptonshire
Finance0% available
Frequently Asked Questions
What is the difference between a system boiler and a combi?
A system boiler heats a cylinder of stored hot water, allowing multiple taps and showers to run simultaneously. A combi heats water on demand but at a lower flow rate.
How big a cylinder do I need?
A family of 4 typically needs a 210–250 litre cylinder. We'll recommend the right size based on your household's needs during survey.
Can I upgrade from heat-only to a system boiler?
Yes — removing the header tank from the loft and fitting a sealed system is a common upgrade we carry out.
Book System Boiler Installation in Corby
Fixed price, Gas Safe engineers, next-day availability.