Plumbing Services


We understand that buying a new boiler can be an expensive purchase, which is why Flush Heating and Plumbing strive to provide our customers with outstanding satisfaction with our boiler packages and installations. We are the experts in our field, continually offering unrivaled levels of service and quality products to hundreds of households around the UK each year.

Our vision for Flush Heating and Plumbing is simple. To deliver customers an outstanding service that focuses on Quality, Honesty, Value for money and Customer Satisfaction. We focus our energy on the installation of boilers and central heating systems only. Our dedication to this one discipline has enabled Flush Heating and Plumbing to quickly become one of London’s leading experts in the Boiler Installation sector.

New boiler installation types

Combination Boiler

A combination/combi boiler is both a high-efficiency instant water and a central heating boiler combined within one compact unit. They typically work by taking cold water straight from the mains supply and heating it as required – eliminating the need for a water cylinder, therefore freeing up space in your property.


  • Sealed central heating systems with all components in one unit making the system more compact and neater looking.
  • Frees up space within the property.
  • Saves you money as more energy saving.
  • Better suited to new builds.

Conventional System - Open Vented

This is a typical regular boiler system that has components housed externally from the boiler itself. It has a hot water cylinder which is fed by a cold water expansion tank which is usually located in the loft.


  • Stored hot water – although once the tank runs out of hot water you will need to wait for this to reheat.
  • Several people in the household can use the hot water at the same time.
  • Good option for low water pressure areas.
  • Combines with solar water heating system.

Conventional Sealed System

A conventional boiler with a sealed system is almost identical to a standard conventional system without all the external components. It houses a hot water cylinder, however, instead of having the expansion tank in the loft it is replaced with an expansion vessel in the boiler itself.



A powerflush is a cleansing process which will clear sludge, rust and any other debris from your central heating system, pipes and radiators. These deposits if
left can seriously affect the efficiency of your heating system and can cause cold spots in your radiators, even after bleeding them.

Water flow

We measure your water flow to determine an accurate boiler size.

Power Flush Certificate

We provide a certificate to validate that the system has been cleaned and treated correctly by our engineer for ultimate peace of mind.

Magnetic Filter

A Magnetic Filter is a filter system which essentially stops your system from building up with Magnetite, also known as sludge, increasing energy efficiency and output within the system.

Limescale Reducer

Your scale reducer will be connected to the cold water mains and will work by reducing the risk of limescale build-up within your boiler.

Waste Collection Service

Here at Flush Heating and Plumbing not only do we strive to deliver the best installations using our market leading products and controls, but the environment is also of great importance to us. We remove your waste efficiently and correctly, leaving you reassured that you are protecting the environment.


We know our market

Why replace, install or fit a new boiler?

A replacement boiler is often the best option as customers have otherwise outdated boiler systems, have missed regular maintenance, or are simply experiencing regular wear and tear due to age. At Flush Heating we are committed to answering any of your questions, coming out to your home to give you a quote, and educating you on your current options regarding repairing or replacing your boiler.

To learn more about our boiler replacement, installation and gas services, please feel free to call us on 020 3633 8096 during business hours and we will be happy to walk you through the process so that you can experience consistent, energy efficient hot water again in no time!

We will strive to find the best fit for your home and work quickly to get your the results you require.

We are delighted that customers rate us as the best local and efficient heating and plumbing service.


If your current boiler and gas system is giving you grief, your water heating has stopped, or you are considering an upgrade, then we are here to help! We are experts in repairing all different boiler types and when needed we can efficiently replace systems with something more modern and effective for your home.

There are several types of modern gas and water boiler solutions available, aimed at increasing energy efficiency, saving you time and money and allowing your home to consistently produce the hot water needed for your household’s baths and showers. New boiler costs will range based on your home’s requirements.


We provide emergency 24/7 plumbing services so that any leaks or a lack of heated or running water can be sorted as soon as possible. A fully qualified and professional team will respond quickly to your call and will assist you in clearing any mess created by the issue. We can also provide you with a remodelling service, ensuring that your space is fixed/upgraded to a standard that you are happy with. The team have the needed experience and ‘know-how’ to address hearing or plumbing issues that are traced back into your walls, piping systems and basement.