Experts Boiler Installation Services UK

A boiler installation is not a job to cut corners on. An incorrectly installed boiler, wrong output for the property, poorly routed flue, inadequate pressure testing will underperform, break down early, and in the worst cases create a genuine safety risk. At EBT Build every boiler installation is carried out by Gas Safe registered engineers, specified correctly for the property, and completed with full certification before we leave the job.

We install combi boilers, system boilers, and conventional boilers for homeowners and landlords across the UK. Every installation starts with a heating survey to assess the property size, hot water demand, radiator output, and existing pipework condition before a boiler type or model is recommended.

Fixed pricing, full installation certification, and a free survey before any commitment is made. Boiler upgrades are usually completed alongside wider plumbing and heating services for full system efficiency.

Trusted, Certified & Fully Insured

Gas Safe Registered

Certified engineers for all gas work, safety checks, boiler installations, and compliance.

NICEIC Approved

Electrical work carried out, tested, and certified to current UK regulations.

Fully Insured

Public & employer liability insurance in place for complete peace of mind.

5★ Customer Rated

Consistently rated for workmanship, reliability, and project management.

10 Years Experience

Delivering home refurbishment and roofing projects with controlled processes, certified trades, and accountable project management.

What’s Included in Our New Boiler Installation

Our new boiler installation service covers everything required for a safe and compliant heating upgrade. All work is carried out by a Gas Safe Register certified engineer to ensure safety and legal compliance.

We isolate the gas supply, remove the old appliance, upgrade pipework where required, and connect the new boiler to your central heating system. After installation, we complete pressure checks, system balancing, and commissioning. New heating systems are often installed together with modern radiator installation to improve heat distribution.

Removal of existing boiler
Installation of combi, system, or conventional boiler
Flue system alignment & safety checks
Condensate pipe routing
Magnetic filter fitting (if required)
Installation of fixtures and fittings, followed by testing and final checks

Our Professional Boiler Installation Services

Our gas boiler installation services follow UK Building Regulations and safety standards. Every system is fitted by a Gas Safe registered engineer and documented with a boiler installation certificate.

We ensure safe gas valve connections, correct flue positioning, and pressure relief valve testing. Compliance guarantees safe operation and protects your warranty. Hot water supply from boilers is commonly used across kitchen and bathroom plumbing systems in the home.

Combi Boiler Installation

A combi boiler provides both central heating and hot water on demand without the need for a separate hot water cylinder or cold water tank. We install combi boilers on properties where space is limited and demand for hot water is moderate, selecting the correct output rating for the property size and usage requirements.

System Boiler Installation

System boilers work with a separate hot water cylinder to store heated water for use on demand. They are well suited to properties with multiple bathrooms and higher hot water demand. We install system boilers including all associated pipework, cylinder connections, and expansion vessel requirements.

Regular Boiler Installation

Regular boilers, also known as conventional or heat only boilers, work with both a hot water cylinder and a cold water storage tank. We install regular boilers on properties where the existing heating system is designed around this configuration, particularly older properties where full system conversion is not practical.

Boiler Replacement

We carry out like for like boiler replacements and system upgrades on properties where the existing boiler has failed or reached the end of its serviceable life. Every replacement includes full system checks, magnetic filter installation, and system flushing before the new boiler is commissioned.

Boiler Relocation

We relocate boilers to a new position within the property where the existing location is no longer practical or accessible. Relocation involves extending or rerouting gas supply pipework, flue installation to the new position, and recommissioning the full system.

Unvented Hot Water Cylinder Installation

We install unvented hot water cylinders alongside system and regular boiler installations where mains pressure hot water is required throughout the property. All unvented cylinder installations are carried out by G3 qualified engineers as required by current UK building regulations.

Why Choose EBT Build for Boiler Installation

A boiler installation carried out by an unqualified or inexperienced engineer is not just a poor investment, it is a safety risk. Incorrect gas connections, poorly routed flue systems, and inadequate pressure testing can cause gas leaks, carbon monoxide exposure, and system failures that are expensive and dangerous to put right. At EBT Build, every boiler installation is carried out by Gas Safe registered engineers, documented with the correct certification, and completed to UK Building Regulations.

We install combi boilers, system boilers, and conventional boilers for homeowners and landlords across Islington, Angel N1, Camden, Hackney, and Haringey. Every installation is assessed individually heat output requirements, radiator capacity, pipework condition, and hot water demand are all confirmed before a boiler is specified or a price is agreed. Many traditional systems also rely on a properly installed hot water cylinder for storing heated water.

BWF and FMB registered, work carried out to recognised trade standards
Structural and moisture assessment on every job before any work is quoted
Rotten sections cut back to sound timber, not filled over
Hardwood and softwood options matched to existing frame profiles
Sills fitted with correct drip groove and weatherproof sealing as standard
Draught proofing upgrades available on all timber window types
Written itemised quote with no costs added after work starts
Fully insured with public and employer liability cover on every project

Boiler Installation Timeline

Survey, System Assessment & Removal

We begin with a heating survey, isolate and drain the old boiler, and carry out leak detection before installation.

Includes: Gas and water isolation, System drain down, Flue removal, Pre installation checks

Installation & System Configuration

The new boiler is mounted, connected to the heating circuit, and configured for safe operation.

Includes: Boiler wall mounting, Pipe & gas connection, Flue installation, Magnetic filter fitting

Testing, Commissioning & Certification

We refill the system, remove air from radiators, and complete pressure testing before final sign-off.

Includes: System refill & balancing, Thermostat configuration, Safety checks, Building Regulations notification

Get Your Free Quote Today

Our Streamlined Working Process

Free Survey

We visit your property in UK to assess the scope and requirements.

Detailed Quote

You receive transparent pricing and a clear timeline for your project.

Scheduled Work

All trades are coordinated and managed under one system.

Final Sign-Off

Snagging is completed and the project is delivered to agreed standards.

Frequently Asked Questions

How much does a new boiler installation cost in the UK?

The cost of a new boiler installation in the UK typically ranges from £1,500 to £4,500 depending on the boiler type, the brand specified, the complexity of the installation, and whether pipework upgrades or system modifications are required. A straightforward combi boiler replacement on an existing combi system sits at the lower end of the range. System boiler installations involving a hot water cylinder and full heating circuit connections cost more. Combi conversions from a conventional system require additional pipework changes and cylinder removal, which increases the overall cost. EBT Build provides a fully itemised written quote after a free heating survey so you know exactly what you are paying for before any work begins.

How long does boiler installation take?

A straightforward combi boiler replacement on an existing combi system can typically be completed within one day. System boiler installations and combi conversions from conventional systems usually take one to two days depending on the extent of pipework changes required. Full heating system overhauls involving new radiators, pipework rerouting, and smart thermostat integration will take longer depending on scope. EBT Build confirms all timelines in writing after the heating survey so you have a clear schedule before any work begins and are not left without heating for longer than necessary.

Do I need a Gas Safe registered engineer to install a boiler?

Yes. In the UK it is a legal requirement for all gas boiler installations to be carried out by a Gas Safe registered engineer. Installing a boiler without Gas Safe registration is illegal, invalidates the boiler warranty, and can result in the property failing a gas safety inspection. It also creates a serious safety risk — incorrectly installed gas appliances are a leading cause of carbon monoxide incidents in UK homes. EBT Build’s engineers are Gas Safe registered and every installation is notified to Building Control and documented with a boiler installation certificate as required by current UK building regulations.

What size boiler do I need for my property?

The correct boiler size depends on the number of bedrooms, bathrooms, and radiators in the property, the level of hot water demand, and the type of heating system being installed. Boiler output is measured in kilowatts — a small flat with one bathroom typically requires a combi boiler of 24 to 28kW, while a larger property with multiple bathrooms may require 35kW or above. Installing an undersized boiler results in inadequate heating and hot water performance. Installing an oversized boiler wastes energy and increases running costs. EBT Build carries out a full heat loss calculation during the survey to specify the correct output for your property before any boiler is recommended.

When should I replace my boiler?

A boiler should be considered for replacement when it is over 10 to 15 years old and showing signs of reduced efficiency, when repair costs are becoming frequent and significant, or when the heating system is no longer providing adequate performance. Specific warning signs include rising energy bills without a change in usage, the boiler taking longer to heat the property, frequent pressure drops, unusual noises during operation, and visible corrosion or leaking around the unit. Older G-rated boilers that pre-date modern condensing technology are significantly less efficient than current A-rated models and replacement typically reduces heating bills noticeably. EBT Build carries out a full boiler and system assessment during the free survey and provides an honest recommendation on whether repair or replacement is the right option.

How often should a boiler be serviced?

A boiler should be serviced annually to maintain efficiency, protect the manufacturer warranty, and ensure safe operation. During a service the engineer checks the heat exchanger, burner, gas valve, flue system, condensate trap, and all safety devices to identify any issues before they develop into breakdowns. Annual servicing also ensures the boiler is burning gas cleanly and efficiently, which directly affects running costs. For landlords, an annual gas safety check carried out by a Gas Safe registered engineer is a legal requirement under the Gas Safety Regulations 1998. EBT Build carries out boiler servicing alongside installation work and can schedule annual service visits to maintain the system going forward.

Reliable home refurbishment and roofing specialists delivering compliant, fully managed building work across the UK.

Services

Locations

About us

Call Now Button

Roofing Services

Full Refurbishment

Plumbing & Heating

Kitchens

Electrical

BATHROOMS

Plastering

Gas Work

Carpentry & Joinery