---
title: "System Boiler Installation in Brighton & Hove | R.K Plumbing"
description: "Gas Safe registered system boiler installations across Brighton, Hove, Lewes and Sussex. Tidy, properly finished work from a family-run local team."
canonical: "https://www.rkplumbingandheatingservices.com/services/system-boiler-installation"
---

Boilers

# System Boiler Installation

If your home relies on a hot water cylinder, a system boiler keeps everything running reliably, and we design, fit and commission the whole thing properly, leaving your home clean and your heating working as it should.

[Call 01273 911551](tel:+441273911551)

![Joule cylinder, copper manifold, Grundfos pump and Vaillant boiler beneath low timber joists in a plant room](/_next/image?url=%2Fapi%2Fmedia%2Ffile%2Frk-cylinder-installation-20220926-04.jpg%3Fprefix%3Dtenants%252F6a73367026944505f092a67a%26v%3D1787046022828&w=1536&q=75&dpl=dpl_J3UkotoCWSfG7mH3JdDuNRVcD7J7)

## What's included with your installation

System boiler work covers more than fitting the unit itself, here's what we look after from start to finish.

### Site Survey & Boiler Sizing

We assess your home's hot water demand and pipework before recommending the right system boiler for your needs.

### Old Boiler Removal

Safe isolation and removal of your existing boiler, with the site left tidy throughout.

### System Flushing & Filters

Flushing the heating system and fitting a magnetic filter helps protect your new boiler and improve efficiency.

### Controls & Cylinder Setup

Fitting or connecting the hot water cylinder and setting up thermostats and controls so everything works together.

## A boiler that works properly with your hot water cylinder

A system boiler is built to work alongside a sealed central heating system and a hot water cylinder, so it stores hot water ready to use rather than heating it on demand. That makes it a sensible choice for homes with more than one bathroom, or where hot water demand is higher than a combi boiler can comfortably handle. We fit and replace system boilers across Brighton, Hove, Woodingdean and the surrounding Sussex towns, working to Gas Safe standards on every job.

Our approach starts with a proper survey. We look at your existing pipework, flue location, cylinder and controls before recommending a boiler that actually suits your home, rather than whatever's easiest to fit. On installation day, we isolate the old system, remove the existing boiler if there is one, and fit the new unit along with the flue, pipework and controls. Most jobs include flushing the system and bleeding radiators, and we'll often fit a magnetic filter to help protect the new boiler from debris in the pipework.

> A boiler that's sized and fitted properly causes far fewer problems down the line.

Once everything's connected, we pressure test, check for leaks, and run the system through its paces before we consider the job done. That means confirming the heating and hot water both work as they should and the safety systems are functioning correctly. We'll talk you through how to use your new controls, and make sure the site is left clean and tidy, no half-finished corners or mess left behind.

More information

Some jobs are more straightforward than others. If your pipework, flue or cylinder need altering to fit the new boiler, or if the existing system hasn't been flushed in years, the job will take a little longer, and we'll flag that during the survey rather than after we've started. Access and available space around the airing cupboard or wherever the cylinder sits can also affect how the work is planned.

> Getting the details right at survey stage saves surprises on installation day.

We are Gas Safe registered for domestic gas work, registration 568345, and an accredited Vaillant installer, and we cover the full range of domestic gas and heating work, not just boilers. Whether you're in Woodingdean, Brighton, Hove, Lewes, Seaford, Worthing, Haywards Heath or Burgess Hill, we bring the same careful approach, a proper survey, honest advice on whether a system boiler is right for your home, and finished work you don't have to worry about. If you're weighing up a system boiler against other options, or just want a straightforward opinion, get in touch and we'll talk it through.

### Ready to talk?

Get in touch and we'll arrange a survey or talk through what your home needs.

[Call 01273 911551](tel:+441273911551)

### While you're here

-   [Boiler Installation](/services/boiler-installation)→
-   [Boiler Replacement](/services/boiler-replacement)→
-   [Combi Boiler Installation](/services/combi-boiler-installation)→

## Worth considering

Boilers

### Boiler Conversion

Boiler conversions across Brighton, Hove and Sussex, from removing the old cylinder and tanks to fitting and commissioning your new combi boiler.

[Boiler Conversion→](/services/boiler-conversion)

Boilers

### Back Boiler Replacement

Gas Safe back boiler removal and modern boiler installation, including pipework, flue work and making good the old fireplace, across Brighton & Hove and Sussex.

[Back Boiler Replacement→](/services/back-boiler-replacement)

Boilers

### Boiler Relocation

Moving a domestic boiler to a better spot in Brighton, Hove and Sussex, with pipework and flue rerouted and the appliance recommissioned in place.

[Boiler Relocation→](/services/boiler-relocation)

## Before you book

A few of the questions we're asked most often about system boiler installations.

How do I know if I need a system boiler rather than a combi?

System boilers work well where you have a hot water cylinder already, or where hot water demand across multiple bathrooms is higher than a combi can keep up with. We'll assess your home during the survey and give you an honest recommendation either way.

How long does a system boiler installation take?

A straightforward swap usually takes one to two days. It can take longer if pipework, the flue or the cylinder need altering, or if the system needs a thorough flush first.

Do you flush the heating system as part of the job?

Yes, most installations include flushing the existing system and bleeding radiators, and we'll often fit a magnetic filter to help protect the new boiler going forward.

Are you qualified to do this work?

We are Gas Safe registered for domestic gas work, registration 568345, and an accredited Vaillant installer. Gas work is carried out by our Gas Safe registered engineers, under registration 568345.

Will you remove my old boiler?

Yes, we isolate and remove the existing unit as part of the job and leave the site clean and tidy once the new boiler is installed and tested.

Do you provide a written quote before starting?

Yes, after the survey we'll give you a clear quote covering the boiler, installation and any extra work identified, so there are no surprises.

Which areas do you cover?

We are based in Woodingdean and cover Brighton, Hove, Worthing, Lewes, Shoreham-by-Sea, Haywards Heath, Seaford, Burgess Hill and surrounding Sussex towns.

What happens after the boiler is installed?

We test the system fully, talk you through the controls, and explain what routine servicing your new boiler will need to keep it running safely and efficiently.

## Let's talk about your boiler

Get in touch and we'll arrange a survey or answer your questions, no pressure, just straight advice.

[Call 01273 911551](tel:+441273911551)