Boiler Installation £2499*

Boiler Installation £1,995

Eicr London
Eicr

Boiler Installation in London

Start from £1,995

All inclusive (No hidden Cost)

Client Testimonials

Excellent

Trustpilot rating
Rated 4.5 out of 5 based on 185 reviews
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Professional Boiler Installation for Homes, Landlords & Businesses

If you are looking for a new boiler or replacing an old, inefficient one, you are in the right place. You may also be planning to upgrade your heating system or arrange a boiler installation for a rental property. In any case, choosing the right boiler and a reliable installer is important. A good installation helps your heating work properly, provides consistent hot water, and keeps your system running well for longer

At Landlord Certificate London (LCL), we provide professional boiler installation services across London for homeowners, landlords, managing agents, HMOs and commercial properties. From assessing your property and helping you choose a suitable boiler to installation, testing, commissioning and aftercare, we make the process straightforward from start to finish. Our boiler installation service currently starts from £1,995, depending on the boiler make, model and installation requirements.

Boiler Installation Cost in London

The cost of a new boiler installation depends on several factors, including the type of boiler, property size, existing heating system, pipework and the complexity of the installation.

At Landlord Certificate London, boiler installation currently starts from £2,499, subject to the boiler make, model and individual installation requirements. We aim to provide clear pricing so you understand the expected cost before installation begins.

Combi Boilers

A combi boiler provides heating and hot water directly from the boiler without requiring a separate hot water cylinder.They are commonly used in flats, smaller homes and properties where space is limited.

System Boilers

System boilers work with a separate hot water cylinder and can be suitable for properties with greater hot water requirements. They may be particularly useful where several taps or bathrooms need hot water.

Conventional Boilers

Conventional boilers are commonly found in properties with traditional heating systems and generally work alongside a hot water cylinder and other system components.

Combi boiler installation

Starting from £1,885

System boiler installation

Starting from £2,295

Boiler conversion

Starting from £2,685

Regular boilers

Starting from £2,295

Boiler Brands We Install

Choosing the right boiler brand and model depends on your property’s size, heating requirements, hot water demand and budget.

Popular boiler brands available for installation can include:

Worcester Bosch Boilers

Installed from £2,095

Vaillant Boilers

Installed from £2,795

Viessmann Boilers

Installed from £2,895

Glow-worm Boilers

Installed from £1,995

What Is Boiler Installation?

Boiler installation involves professionally fitting a new boiler and connecting it to your property’s heating and hot water system.

This may involve replacing an existing boiler with a newer model or installing a new heating system where more extensive work is required.

Correct installation helps ensure that the boiler operates safely, efficiently and reliably from the beginning.

Gas boiler work should be carried out by an appropriately qualified Gas Safe registered engineer.

£1,995*

*Start From (Dependent Upon Make & Model)

*Appliance tested

*New Magna Filter Installed

*Existing System Chemically Washed

*Checking of the emergency control valve on gas meter

*Tightness test performed on gas meter to make sure there is no gas leak.

*£5 Parking charges are applicable in case of paid parking.
*£18 Congestion Charge applicable in case the property is in congestion charge zone

Do You Want To Book Multiple Services?

EICR

Gas Safety

Fire Safety

Who Do We Install Boilers For?

LCL provides boiler installation services for a range of residential, rental and commercial properties across London.

Homeowners

Replacing an old or inefficient boiler can improve heating reliability, provide consistent hot water and help improve the overall efficiency of your heating system.

Landlords & Managing Agents

Reliable heating and hot water are essential in rental properties. Professional boiler installation for landlords in London can help reduce unexpected heating problems, improve tenant comfort and support ongoing property and gas safety management. For managing agents responsible for multiple properties, working with an experienced boiler installation provider can also simplify heating system upgrades across a portfolio.

HMOs

HMOs can place greater demand on heating and hot water systems because of higher occupancy and multiple bathrooms. Correct boiler sizing is particularly important to ensure that the system can meet the property’s heating and hot water requirements. Professional HMO boiler installation in London helps ensure that the boiler and heating system are appropriately specified for the property.

Commercial Properties

Commercial properties can have very different heating requirements depending on their size, occupancy, operating hours and hot water demand. Professional commercial boiler installation in London helps ensure that the selected heating system is suitable for the operational requirements of the premises.

How Our Boiler Installation Process Works

A professional boiler installation involves four main stages.

1. Property Assessment

The first stage is assessing your existing heating system and the requirements of the property. Our team assesses factors including the property size and layout, number of bedrooms and bathrooms, occupancy levels, heating and hot water demand, existing boiler, radiators, pipework and drainage.

2. Boiler Selection & Preparation

Once the property has been assessed, a suitable boiler can be selected. Where an existing boiler is being replaced, the old appliance is safely disconnected and removed. Pipework, drainage, ventilation or flue arrangements may also need to be modified depending on the installation.

3. Boiler Installation

The new boiler is installed and connected to the property’s heating and hot water system. Gas, water and heating connections are fitted and checked, while the flue and ventilation arrangements are assessed against relevant requirements. Heating controls can also be connected, helping make the system easier to manage and potentially reduce unnecessary energy use.

4. Testing, Commissioning & Handover

Once the boiler has been installed, the system is tested before the appliance is commissioned. The engineer checks that the boiler and heating system are operating correctly. Relevant documentation can then be provided, together with guidance on how to operate your new boiler and heating controls.

Boiler Installation Certificate & Documentation

After a new boiler installation, relevant installation and commissioning documentation should be provided where applicable.

Boiler documentation can be important for:

  • Landlords and rental property records
  • Building Regulations compliance
  • Property sales
  • Insurance requirements
  • Manufacturer warranty requirements
  • Council or property inspections
  • Future servicing and maintenance

For landlords and managing agents, keeping installation documentation organised can also help with ongoing property management and future gas safety checks.

Boiler installation

Why Choose LCL for Boiler Installation in London?

At Landlord Certificate London, we understand that boiler installation is not simply about replacing one appliance with another. The boiler needs to be suitable for the property, correctly installed and properly commissioned.

When you choose LCL for your boiler installation, you benefit from:

  • Gas Safe-focused professional installation
  • Boiler options for different property requirements
  • Support for homeowners, landlords and managing agents
  • Experience with rental properties and HMOs
  • Residential and commercial boiler installation

Our experience working with landlords and property professionals also means we understand the importance of safety, documentation, reliable heating and minimising disruption to occupants.

Boiler installation

£1,995*

*Start From (Dependent Upon Make & Model)

*Appliance tested

*New Magna Filter Installed

*Existing System Chemically Washed

*Checking of the emergency control valve on gas meter

*Tightness test performed on gas meter to make sure there is no gas leak.

*£5 Parking charges are applicable in case of paid parking.
*£18 Congestion Charge applicable in case the property is in congestion charge zone

Client Testimonials

Excellent

Trustpilot rating
Rated 4.5 out of 5 based on 185 reviews
Trustpilot Trustpilot

Frequently asked questions.

Gas boiler installation and associated gas work should be carried out by an appropriately qualified Gas Safe registered engineer.

Professional installation helps ensure that the system is correctly connected, tested and commissioned before use.

In many cases, yes.

For example, it may be possible to convert an existing conventional heating system to a combi boiler.

However, boiler conversions generally involve more work than a straightforward like-for-like replacement and may require pipework or other system modifications.

A professional property assessment can determine whether a conversion is appropriate.

Yes, although this would normally involve a complete heating system installation rather than a standard boiler replacement.

Additional work may include:

  • New pipework
  • Radiators
  • Heating controls
  • Gas supply work
  • Flue installation
  • Ventilation
  • Other heating system components

A property assessment is required to determine the installation requirements.

In many cases, yes.

However, the condition and suitability of the existing radiators should be assessed before the new boiler is installed.

Older or unsuitable radiators may require balancing, upgrades or replacement to achieve better performance from the heating system.

During a boiler replacement, the existing appliance is safely disconnected and removed.

The relevant gas, water and heating connections are checked before the new boiler is installed.

The right boiler brand depends on your budget, property size, heating system and hot water requirements.

Boiler brands available for installation can include:

  • Worcester Bosch
  • Vaillant
  • Viessmann
  • Ideal
  • Glow-worm

Rather than choosing on brand name alone, the boiler should be selected according to the requirements of your property.

The right boiler may be a combi, system or conventional boiler depending on your property.

Smaller properties may be suited to a combi boiler, while properties with greater hot water demand may require a system or conventional setup.

The number of bathrooms, occupancy, heating demand and existing system should all be considered before choosing.

Boiler installation prices depend on the boiler make and model, property type, existing heating system and complexity of the work.

At Landlord Certificate London, boiler installation currently starts from £1,995 , subject to the individual installation requirements.

Contact LCL with your property details for a tailored quotation.

Book Your Boiler Installation in London

Whether you are a homeowner or landlord looking to upgrade your heating system, install a new boiler, or replace an old one in your home or rental property, Landlord Certificate London can help. We also support property management agents responsible for multiple properties and business owners who need to upgrade or replace their heating systems.

We provide professional boiler installation across London for residential, rental, HMO and commercial properties. No matter if you are a homeowner thinking of replacing your boiler.