Provides heating and hot water directly without requiring a separate hot water cylinder.
Often suitable for: flats, apartments and smaller homes with moderate hot water demand.
Works with a separate hot water cylinder, allowing stored hot water to be supplied to multiple outlets when required.
Often suitable for: larger homes, properties with multiple bathrooms, and households with higher simultaneous hot-water demand.
Works with a cylinder and traditional heating-system configuration.
Often suitable for: properties already using conventional systems or with specific heating requirements.
A new boiler installation involves more than fitting the appliance itself. The work required depends on your existing heating system and the type of installation, but we make sure the necessary installation, testing and handover are considered as part of the job.
A typical boiler installation may include:
The exact work varies between properties. Boiler relocation, system conversion or additional heating-system work will be discussed during the assessment and included in the quotation where required.
From the initial assessment to commissioning your new boiler, we keep the process clear and straightforward. Every installation is planned around your property, existing heating system and hot water requirements.
We start by understanding your existing boiler, heating system, property size and hot water requirements. Where relevant, we also consider mains water flow, gas supply and existing pipework.
We recommend an appropriate boiler type and output based on what your property actually needs rather than simply replacing the existing appliance with a similar model.
Planning a wider heating upgrade? →Once the required work is understood, we'll provide a clear quotation covering the agreed boiler installation and any additional work required for your system.
Our Gas Safe registered engineers remove the existing boiler where required, install the new appliance and complete the necessary pipework, flue, condensate and control connections.
If your heating setup uses stored hot water, we can also assess whether your existing cylinder remains suitable.
Hot Water Cylinder Installation →Once installation is complete, the boiler and relevant system components are tested and commissioned to confirm safe operation and correct performance before handover.
We'll explain how to use your new boiler and heating controls and provide guidance on ongoing maintenance. Annual servicing helps keep the boiler checked and maintained after installation.
Explore Boiler Care Plans →More involved installations can take longer where the boiler is being relocated, the heating system requires additional work or significant pipework changes are needed. We'll explain the expected timescale before work begins.
Boiler installation costs vary depending on the property, existing heating system, boiler specification and the amount of work required.
A straightforward replacement in the existing position will usually involve less work than relocating a boiler, converting the heating system or making significant changes to pipework and controls.
That is why we assess the installation first and provide a clear, property-specific quotation rather than advertising one standard price.
Get a Boiler Installation Quote →Different boiler types require different equipment and installation arrangements.
Moving the boiler or changing system type can require additional pipework, flue and condensate work.
The required output, manufacturer and selected model influence the overall cost.
Existing controls, system condition and any required heating upgrades are considered in the quotation.
Boiler replacement can also be planned alongside radiators, controls, pipework or wider heating-system improvements.
If your existing boiler is unreliable or no longer suitable for your property, replacing it can provide an opportunity to improve the performance and control of your heating system.
We provide fast, reliable plumbing and heating services across South West and Central London, covering both residential and commercial properties.
Explore local boiler installation services from Keystone’s Gas Safe engineers across West, South West and Central London.
Professional boiler replacement and installation in Battersea.
New boiler installation for homes and landlords in Chelsea.
Professional boiler upgrades and replacements across Fulham.
Reliable new boiler installation throughout Hammersmith.
Gas Safe boiler installation for Kensington properties.
New boiler installation and replacement across Putney.
The cost of a new boiler installation depends on the type and model of boiler, your property's heating and hot water requirements, and the amount of installation work involved.
A straightforward boiler replacement will usually involve less work than relocating a boiler, converting from a conventional system to a combi boiler, or making significant changes to existing pipework.
Keystone London assesses your requirements before providing a clear quotation, so you know what is included before installation begins.
A straightforward boiler replacement can often be completed within a day, while more complex installations may take longer.
Changing the boiler type, moving it to a new location, altering pipework or upgrading other parts of the heating system can increase the installation time. We'll explain the expected timescale before work begins.
The correct boiler size depends on more than the number of bedrooms in your property. Your home's heat demand, number of radiators, bathrooms, hot water requirements and existing heating system all need to be considered.
Our engineers assess these factors before recommending an appropriate boiler output for your property.
The best boiler type depends on your property and how you use heating and hot water.
A combi boiler can be a practical option for properties with suitable water flow and moderate hot water demand. System boilers work with a hot water cylinder and can suit homes requiring stored hot water, while conventional boilers may be appropriate for certain existing heating-system configurations.
We'll assess your current system and explain which options are suitable.
In many properties, yes. However, relocating a boiler can require changes to gas pipework, heating pipes, condensate drainage and the flue arrangement.
The proposed location also needs to meet relevant installation and safety requirements. We can assess suitable locations during your survey and explain any additional work involved.
Not necessarily. If your existing radiators are in good condition, appropriately sized and working effectively, they may not need replacing.
However, poorly performing, damaged or unsuitable radiators may be worth upgrading as part of a wider heating-system improvement. We'll assess the existing system and advise if any changes are recommended.
The condition of the existing heating system needs to be considered when installing a new boiler. Sludge and debris within the system can affect circulation and the performance of new components.
The appropriate cleaning or flushing method depends on the condition of the system. We'll advise what is required as part of the installation.
Keystone London works with leading boiler manufacturers commonly installed in UK homes, including brands such as Worcester Bosch, Vaillant, Ideal, Baxi and Viessmann.
Rather than recommending the same boiler for every property, we consider your heating requirements, hot water demand, available space, budget and preferred features.
New boilers generally come with a manufacturer's warranty, although the length and conditions vary between manufacturers and models.
Correct installation, registration and ongoing servicing may be required to maintain warranty cover. We'll explain the relevant requirements for the boiler you choose.
A boiler should generally be serviced once every 12 months. Regular servicing helps check that the appliance is operating safely and correctly, can identify developing problems and may be required under the manufacturer's warranty conditions.
Keystone London also offers annual boiler servicing and service reminders to help keep maintenance on schedule.
Yes. Keystone London provides boiler installation across West, South West and Central London, including areas such as Chelsea, Fulham, Kensington, Knightsbridge, Pimlico, Hammersmith, Chiswick, Ealing, Putney, Wandsworth and surrounding areas.
Replacement isn't always necessary when a boiler develops a fault. A repair may make more sense if the boiler is otherwise reliable and the problem can be resolved economically.
A new boiler may become worth considering when the existing appliance is ageing, experiencing repeated breakdowns, becoming expensive to repair or no longer meeting your property's heating and hot water requirements.