Boiler Replacement services
Boiler Services
Boiler Repair
Boiler Installation
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Need Boiler Replacement Services in London?
Boiler Replacement London – Safe, Energy-Efficient Installation by Gas Safe Engineers with Clear Pricing
Supporting Homeowners, Landlords, and Property Managers Across London
At Liviosiv we work on both residential and commercial properties. This includes private houses, flats, HMOs, offices and managed buildings.
We understand that setups are all different. A small flat in Central London doesn’t require the same system as a multi-bathroom family home or a rental property with compliance requirements.
Our approach is straightforward. We’ll measure your property properly, advise on what will actually work, and install it safely and with minimum disturbance.
Boiler Replacement services
Boiler Services
Boiler Repair
Boiler Replacement
Boiler Maintenance
Need Boiler Replacement Services in London?
Landlords
Property Agents
Letting Agents
Property Owner
Replace Your Boiler with a Safer, More Efficient Heating System
When an Old Boiler Becomes Costly and Unreliable
Most people do not give their boiler a second thought until something goes wrong. Then it’s urgent. No heat, no hot water and often no idea what to do next.
You may find that your boiler is 10-15 years old and that means you are dealing with lower efficiency, higher running costs and more frequent breakdowns. Older systems are big power hogs. The UK’s Energy Saving Trust says modern A-rated boilers can be over 90 per cent efficient, while older models can drop to around 70 per cent. That difference shows up right on your energy bills.You can still have heat and hot water but you are paying a lot more for it than you should.
How a New Boiler Improves Heating, Hot Water, and Energy Bills
A new boiler changes how your home or property functions day to day. It heats up faster, the pressure of the water is better and you don’t have to keep fiddling with controls to get the same result every time.
Modern boilers are designed to be smarter. They use just the energy they need so there is less waste. That means lower bills and fewer unexpected repairs over time.
You’ll have more control, too. A lot of systems use smart thermostats these days, which means you have more options for heating schedules and usage.
Do You Need a Boiler Replacement or a Repair?
Common Signs Your Boiler Needs Replacing:There are a few clear warning signs that usually point toward replacement rather than repair:
- Frequent breakdowns
• Rising energy bills without increased usage
• Slow heating or inconsistent hot water
• Strange noises such as banging or whistling
• Visible leaks or corrosion
• Boiler over 10–15 years old
If you are seeing more than one of these, it is worth considering replacement seriously.
When a Repair May Be the Better Option:Not every problem calls for a new boiler. Sometimes it’s a simple fix such as low pressure, a faulty component or a control issue.The first thing we do is check the condition of your system. We will let you know when a repair is safe, feasible and financially sound. There is no benefit in replacing a boiler when there is no need.
Understanding “Beyond Economical Repair” (BER):This is an engineering term when the cost of repair is too high compared to replacement.If a major component such as a heat exchanger fails, the cost of repair may be nearly as much as a new boiler. In that case it is more logical, both economically and practically, to replace the system.
Making the Right Decision Based on Cost, Safety, and Efficiency:The decision usually comes down to three things:Cost of ongoing repairs, Safety of the system, Efficiency and running costs. We explain this clearly so you can make an informed choice, not a rushed one.
Our Boiler Replacement Services in London
Like-for-Like Boiler ReplacementThis is the simplest option. Your existing boiler is replaced with a similar model in the same location.It is usually quicker, more cost-effective, and less disruptive.
Combi Boiler Replacement for Flats and Smaller Homes:Combi boilers are perfect for properties with limited space. They don’t need a water tank and they give hot water when you want it. Also frequently found in London flats and smaller homes where space and efficiency are key.
System Boiler Replacement for Higher Demand Properties:System boilers are more suitable for larger households that require more hot water. They work with a cylinder, so you can run multiple taps at the same time.
Conventional (Regular) Boiler Replacement for Traditional Systems:Older properties often have conventional systems with tanks. In some cases, it makes sense to replace like-for-like rather than change the system completely.
Boiler Conversion Services (System to Combi and More):We also carry out full system conversions. This includes removing tanks, upgrading pipework, and installing a more modern setup.Conversions require more planning, but they can improve efficiency and free up space.
Emergency Boiler Replacement and Same-Day Availability:If your boiler has completely failed, we prioritise fast response.We offer flexible booking slots and, where possible, same-day or next-day replacement to minimise disruption.
How Much Does Boiler Replacement Cost in London?
Typical Cost Ranges for Different Boiler Types:Boiler replacement costs in the UK vary depending on the type of system and complexity of installation. Boiler replacement in London, typical ranges are: Combi replacement: £1,800 to £2,800, System or regular: £2,000 to £3,500, Conversions: £2,500 to £4,000+.These are general estimates. The actual price depends on your property and setup.
Combi Boiler Replacement Cost Guide:Combi boilers are usually the most straightforward option. Costs stay lower if the installation is like-for-like.
System and Conventional Boiler Replacement CostsThese systems can involve additional components such as cylinders and tanks, which can increase overall cost.
Boiler Conversion Costs and What to Expect:Conversions require more labour, adjustments to pipework, and removal of existing components. This increases both time and cost.
Geographical Breakdown of London’s Districts
Central London
South London
West London
North London
East London
What is Included in Our Boiler Replacement Service
Initial Assessment and Heating Requirements Review:We start by understanding your property and heating needs.
Expert Recommendation of the Right Boiler System:We guide you through options based on usage, budget, and efficiency.
Safe Removal and Disposal of the Old Boiler:Old systems are removed safely and disposed of properly.
Professional Installation by Gas Safe Registered Engineers:All installations are carried out by qualified engineers following UK regulations.
System Testing, Commissioning, and Performance Checks:We test the system fully to ensure it’s working correctly and safely.
Handover, Guidance, and Ongoing Support:You will know how everything works before we leave. Support doesn’t stop after installation.
Installed by Gas Safe Registered Engineers – Safety and Compliance First
Legal Requirements for Gas Boiler Installation in the UK:Gas boilers must legally be installed by Gas Safe registered engineers. This ensures safety and compliance with regulations.
Ensuring Safe Gas Connections and System Integrity:Every installation is carried out with strict safety checks. Gas leaks or incorrect connections are not risks you can afford.
Post-Installation Testing and Certification:We test the system and ensure everything meets required standards before completion.
Landlord Responsibilities and Rental Property Compliance:Landlords must ensure heating systems are safe and functional. Replacement may be necessary to meet compliance standards.
Our Complete Landlord Safety Certificate Services in London
Gas Safety Certificate
Certified EICR inspections to ensure your property’s wiring is safe, compliant, and legally approved.
Fire Safety Services
Complete fire safety inspections, alarms, and compliance solutions to protect your property and occupants.
Energy Performance Certificate (EPC)
Fast and accurate EPC assessments to rate your property’s energy efficiency and meet legal requirements.
Asbestos Survey
Professional asbestos surveys to identify risks and ensure full compliance with UK safety regulations.
Inventory Services
Detailed property inventory reports with photos to protect landlords, agents, and tenants.
Legionella Services
Legionella risk assessments and water testing to maintain safe and compliant water systems.
Choosing the Right Boiler for Your Property
Combi vs System vs Conventional Boilers Explained:Each type has its purpose. Choosing the wrong one can lead to poor performance or unnecessary cost.
Best Boiler Options for Flats and Apartments:Combi boilers are usually the best fit due to space and efficiency.
Heating Solutions for Larger Homes and Multiple Bathrooms:System or conventional boilers are better suited for higher demand.
Considerations for Rental Properties and HMOs:Reliability and compliance are key factors in rental properties.
Balancing Efficiency, Performance, and Budget:We help you find the right balance rather than pushing the most expensive option.
Leading Boiler Brands We Install
- Worcester Bosch – Reliability and Long Warranties
- Vaillant – High Performance and Energy Efficiency
- Ideal – Cost-Effective and Practical Solutions
- Baxi – Trusted UK Manufacturing and Support
- Viessmann – Advanced Technology and Long-Term Value
We work with trusted brands known for durability and performance. The right brand depends on your needs and budget.
Book a suitable time
We complete inspection and EICR testing
You receive your report and certificate
Our Boiler Replacement Process – Step by Step
Step 1 – Property Assessment and Quotation:We assess your system and provide a clear quote.
Step 2 – Clear Fixed Price and Booking Confirmation:No hidden costs. Everything is confirmed before work begins.
Step 3 – Installation by Qualified Engineers:Work is carried out safely and professionally.
Step 4 – Testing, System Optimisation, and Safety Checks:We ensure everything is working correctly before completion.
Step 5 – Final Handover, Warranty, and Aftercare:You receive guidance, warranty details, and ongoing support.
Benefits of Replacing Your Boiler
- Lower Energy Bills with Modern A-Rated Systems
- Improved Heating Performance and Water Pressure
- Increased Reliability and Reduced Breakdown Risk
- Reduced Carbon Emissions and Environmental Impact
- Better Control with Smart Heating Technology
A new boiler is not just a replacement. It improves how your property functions every day.
Why Choose Us for Boiler Replacement in London
- Fully Qualified Gas Safe Engineers
- Transparent Pricing with No Hidden Costs
- Fast Turnaround and Flexible Booking Slots
- Experience with London Properties and Layouts
- Trusted by Homeowners, Landlords, and Agents
- Quality Workmanship and Long-Term Support
We focus on doing the job properly, not just quickly.
Boiler Replacement for Landlords and Managed Properties
- Meeting Legal Heating and Safety Requirements
- Minimising Tenant Disruption and Downtime
- Documentation, Records, and Ongoing Compliance
- Reliable Solutions for Letting Agents and Property Managers
We understand the pressure landlords face with compliance and tenant expectations.
Get a Fixed Boiler Replacement Quote Today
Request a Free Home Assessment
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Speak to a Heating Specialist for Expert Advice
Book Your Installation at a Time That Suits You
If you’re unsure, start with a quick quote. It’s the easiest way to understand your options.
£5M Public Liability Insurance
DBS-checked engineers
Fully compliant documentation
Our Accreditations & Professional Standards
All Boiler services are carried out by NICEIC-approved electricians.
Why Clients Choose Liviosiv
NICEIC-qualified electricians
Over 7 years of inspection experience
Fully compliant with BS 7671 (18th Edition)
£5M Public Liability Insurance
DBS-checked engineers
Transparent pricing
Clear, easy-to-understand reports
Book Your Boiler Installation in London
Getting started is simple.
Request a Qote
Share your details for a clear and accurate estimate.
Share Your Property and Boiler Detils
This helps us recommend the right system.
Choose Your Preferred Installation Dat
Flexible scheduling to suit your availability.
Frequently Asked Questions (FAQ)
How do I know if I need a new boiler?
If your boiler is 10-15 years old, is frequently breaking down or costing a fortune in energy bills, it’s usually a sign you should think about replacing it. You could also experience problems with slow heating, inconsistent hot water or strange noises.
In many cases it is simply a question of cost. If you’re finding yourself paying for repairs every couple of months, it’s usually better to invest in a new system that is efficient and reliable. We’ll always assess the condition first and give honest advice so you don’t have to replace a boiler unnecessarily.
How long does a boiler replacement take?
A standard boiler replacement, where the new boiler is put in the same place, usually takes one day.If it is a system conversion, moving the boiler or upgrading pipework, one to two days, depending on the complexity of the job.” We’ll always confirm the estimated turnaround time before you book so you know exactly what to expect.
What is the average cost of a new boiler in London?
The cost of boiler replacement in London typically ranges between £1,800 and £3,500 for most standard installations. More complex jobs, such as system conversions, can go up to £4,000 or more.The final price depends on several factors, including the type of boiler, property size, installation complexity, and chosen brand. We provide clear, fixed quotes so there are no surprises later.
Do you remove and dispose of the old boiler?
Yes, the removal and safe disposal of your old boiler is included in our service.
We handle everything, including disconnecting the system, removing the unit, and disposing of it in line with environmental and safety standards. You don’t need to arrange anything separately.
Will I receive a warranty with my new boiler?
Yes, all new boilers come with a manufacturer-backed warranty. Most modern systems include warranties ranging from 5 to 10 years, depending on the brand and model.
We also ensure the boiler is installed and registered correctly so your warranty remains valid. This gives you long-term peace of mind and protection against unexpected faults.
Can boiler replacement be completed in one day?
Yes, in most cases a like-for-like boiler replacement can be completed within a single day.
However, if additional work is required such as system upgrades, pipework changes, or converting from one boiler type to another, the installation may take longer. We’ll always explain this clearly before starting the job.
Do landlords need to replace boilers to stay compliant?
Landlords are legally required to ensure that heating systems are safe and working properly. If a boiler is unsafe, unreliable, or cannot pass safety checks, it may need to be replaced.
Under UK regulations, gas appliances must be maintained in a safe condition, and a valid Gas Safety Certificate (CP12) is required annually. If your boiler cannot meet these requirements, replacement becomes necessary to remain compliant.
What type of boiler is best for my property?
The best boiler depends on your property size, water demand, and existing system.
Combi boilers are ideal for flats and smaller homes where space is limited.
System boilers suit larger properties with multiple bathrooms.
Conventional boilers are often used in older homes with existing tanks.
We look at your usage, layout, and budget before recommending the right option, so you get a system that works properly long term, not just something that fits temporarily.
Accrediations
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