Boiler Installation London

We deliver professional boiler installation services throughout London 24/7. Whether you’re upgrading to a your boiler or need a new gas boiler for your property, our experienced team ensures safe, efficient installations.

Boiler Installation Near Me

If you’re searching for boiler installation near me, you need engineers you can trust to do the job properly and safely. We provide professional boiler installation services carried out by fully qualified, Gas Safe registered engineers. Whether you’re replacing an old system or installing a brand-new boiler, we make the process simple, clear, and stress-free.

As a local boiler installer near me, we respond quickly, offer honest advice, and install reliable, energy-efficient boilers that suit your home and budget. Our team handles everything from removing your old unit to fitting, testing, and commissioning your new system to manufacturer standards.

For homeowners looking for gas boiler installation near me, we ensure all work is compliant with UK regulations and completed to the highest safety standards. We focus on quality workmanship, clear pricing, and long-term performance, so you can rely on your heating and hot water all year round.

Boiler Installation London

We specialise in boiler installation London, providing reliable heating solutions across the capital. As a London-centred team, we understand the different property types in the city from flats and terraced houses to larger family homes and we tailor every installation to suit your system and usage needs.

Our gas boiler installation London service includes a full system assessment, expert recommendations, safe removal of your old boiler, and professional installation of your new unit. All work is carried out by certified engineers who are Gas Safe registered, ensuring complete safety and compliance.

When you choose us for boiler installation London, you get experienced engineers, transparent pricing, and a smooth installation process from start to finish. We also test and commission your new boiler properly, making sure it runs efficiently and delivers reliable heating and hot water throughout your property.

Gas Boiler Installers

Choosing the right gas boiler installers is essential for safety, efficiency, and long-term reliability. Our team of experienced boiler engineers specialise in gas boiler installations for homes of all sizes. Every installation is carried out by qualified, Gas Safe registered professionals with hands-on experience fitting leading boiler brands.

As trusted gas boiler installers, we assess your current heating setup, recommend the right size and type of boiler, and complete the installation to strict safety standards. Our gas boiler installation near me service focuses on quality workmanship, correct pipework connections, flue installation, and full system testing.

If you’re looking for experienced boiler installation gas engineers who prioritise safety and performance, we deliver reliable results. From straightforward replacements to full system upgrades, our engineers ensure your new gas boiler is installed correctly, efficiently, and ready to perform for years to come.

Our Services

Central Heating

This is the heading

Lorem ipsum dolor sit amet consectetur adipiscing elit dolor

Click Here

Central Heating

From repairs to full system upgrades, we keep your central heating working efficiently when you need it most.

Learn More

Powerflush

Restore heat and efficiency with a professional powerflush that removes sludge and improves system performance.

Learn More

10+ Years of experience

Local Service

Trusted & friendly

24/7 support

Boiler Installation London

Vaillant Boiler Installation

We provide professional Vaillant boiler installation for homeowners looking for high efficiency and long-term reliability. Vaillant boilers are known for their German engineering, quiet operation, and strong energy performance ratings. Our Gas Safe registered engineers install combi, system, and regular Vaillant models to suit your property and heating needs.

Whether you’re upgrading an older unit or planning a full heating system replacement, we make the process straightforward. We size the boiler correctly, ensure safe gas connections, and fully commission the system so it runs efficiently from day one. If you’re searching for trusted Vaillant installers, we deliver safe, compliant, and high-quality installations.

Ideal Heating Boiler Installation

We offer expert Ideal boiler installation for customers looking for dependable performance at a competitive price. Ideal boilers are a popular choice in UK homes due to their compact design, efficiency, and solid warranty options.

Our boiler installation gas engineers ensure the correct boiler size is selected for your property, helping you maximise efficiency and reduce running costs. From full system upgrades to straightforward replacements, we complete every installation to high standards. All work is carried out by Gas Safe registered professionals, giving you confidence that your Ideal boiler is installed safely and correctly.

Worcester Bosch Boiler Installation

Our Worcester Bosch boiler installation service is ideal for homeowners who want a reliable and widely trusted heating system. Worcester Bosch boilers are known across the UK for their durability, strong warranties, and consistent performance.

Our experienced gas boiler installers assess your heating and hot water demand to recommend the right Worcester model for your home. We handle everything from removal of the old boiler to expert installation and system testing. Every installation is completed by Gas Safe registered engineers to ensure safety and full compliance. With the right setup, your Worcester boiler will provide efficient heating for years.

Baxi Boiler Installation

Baxi boilers are a common choice for UK homes, with models available for different heating and hot water requirements. We install Baxi combi, system and heat-only boilers, selecting a suitable model according to the property, existing system and expected demand. Our Gas Safe registered engineers take care of the installation, including pipework, controls and system connections.

If your existing boiler is becoming unreliable or you’re planning to replace an older heating system, a new Baxi installation can provide a practical upgrade. We remove the old unit where required, fit the replacement correctly and carry out the necessary safety and commissioning checks. For Baxi boiler installation in London, we provide a properly planned service from initial assessment through to completion.

Corgi Boiler Installation

A new boiler needs to be matched to the way your heating system is used, rather than chosen on brand alone. We install suitable CORGI boilers for London properties and assess the existing heating arrangement before work begins. Our Gas Safe registered engineers check the boiler location, connections and system requirements to ensure the installation is carried out correctly.

Replacing an older boiler can also be an opportunity to review your heating controls and overall system setup. We manage the installation carefully, making sure the new boiler is connected, tested and commissioned before it is handed over. If you need CORGI boiler installation in London, we can arrange a professional installation suited to your property’s heating and hot water requirements.

Combi Boiler Installation

A combi boiler provides central heating and hot water without requiring a separate hot water cylinder, making it particularly useful where space is limited. We install combi boilers for London properties and consider factors such as the size of the home, number of bathrooms and available mains water pressure when determining the appropriate system.

For a straightforward replacement, we can remove your existing boiler and install the new combi in a suitable position. Where the heating system needs further changes, we assess the pipework and controls before carrying out the work. Our Gas Safe registered engineers then test and commission the installation to ensure everything is working safely. We provide combi boiler installation in London for new installations and heating system replacements.

System Boiler Installation

System boilers are designed for homes that need a larger supply of hot water and can work well with properties where several outlets may be used at the same time. Unlike a combi boiler, a system boiler works alongside a hot water cylinder, allowing stored hot water to be available when required. We install system boilers based on the property’s layout, heating demand and existing cylinder arrangement.

Our engineers assess the current heating system before installation, including the boiler, cylinder, pipework and controls. We then carry out the required work and commission the complete system rather than treating the boiler as a standalone appliance. If you’re planning a system boiler installation in London, we can replace an outdated system or install a new arrangement designed around your home’s heating and hot water needs.

      EXCELLENT  
   Based on 351 reviews 
    
 
 
 
   
 
 
      Posted on Google  
   
   Stuart Harrison 
 9 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Very helpful and efficient, explaining options in simple language
  
 
     Posted on Google  
   
   Marvin Mutebi 
 10 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Came quickly to assess my boiler and had good communication throughout the entire process.
  
 
     Posted on Google  
   
   Spencer 
 11 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Quick, efficient and professional.
  
 
     Posted on Google  
   
   Samantha Henry 
 12 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Quick and efficient. John was lovely, hoping my leak is gone
  
 
     Posted on Google  
   
   Romil Depala 
 12 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Came within 15 mins despite saying 30, super effectively fixed the leak. Highly recommend
  
 
     Posted on Google  
   
   Adam Davis 
 15 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Absolutely brilliant from start to finish. Put a new boiler in a property one day after diagnosing a fault. I didn’t have to worry about one thing - no faffing, just a price given and by the next day it was complete. Armond, John and Claudia were very active throughout the process and offered me free advice to start. I’m always dubious about going with contractors you find on Google but after so many bad experiences - so refreshing for it work out like you always feel it should.
  
 
     Posted on Google  
   
   Somayen G 
 17 days ago
 
 
 Trustindex verifies that the original source of the review is Google. It was a pleasure having Armand helping us with our gas meter leakage issue. He identified the main leaking spot straightaway and had fixed it right the next day. I appreciate how knowledgeable, punctual and professional he is 🙏
  
 
     Posted on Google  
   
   Lamine Kafiz 
 17 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Really happy with the service! Friendly, professional and got the job done properly. Would definitely recommend!
  
 
     Posted on Google  
   
   Keirra Woods 
 18 days ago
 
 
 Trustindex verifies that the original source of the review is Google. My three-year-old turned the switch off at a wall behind a fish tank and he told me to check the switch. He’s a great person very needed the help.
  
 
     Posted on Google  
   
   Matteo Busti 
 20 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Good service from start to finish! The contractor was professional, friendly, and efficient when installing my new boiler. Everything was handled smoothly, and I’m really happy with the work. Highly recommended!

      EXCELLENT  
   Based on 10 reviews 
    
 
 
 
   
 
 
      Posted on Yell  
   
   JohnR-83978 
 1015 days ago
 
 
 Trustindex verifies that the original source of the review is Yell. They came quickly and repaired my boiler perfectly at a fair price. Best boiler repair service in North London, thank you.
  
 
     Posted on Yell  
   
   SaagzS 
 2349 days ago
 
 
 Trustindex verifies that the original source of the review is Yell. Good Gas and Plumbing work. Definitely Recommended.
  
 
     Posted on Yell  
   
   EszterF 
 2358 days ago
 
 
 Trustindex verifies that the original source of the review is Yell. Highly recommend Armand he’s an experienced plumber and he did a great job within a few minutes 

Thank you
  
 
     Posted on Yell  
   
   LindaH-517 
 2362 days ago
 
 
 Trustindex verifies that the original source of the review is Yell. Armand arrived the same morning as I called, keeping me informed as to his expected arrival time. He was very efficient at sorting the problem, which was stopped a leaking pipe. He wore a medical mask and gloves , and was very aware of social distancing and of not touching surfaces unnecessarily, enabling my lodger to remain safely at work in the same room whilst he was there. He is very polite and friendly and gives a clear explanation of what needs doing. He is my go-to person whenever I need a plumber, having been here three times now, and I highly recommend him .
  
 
     Posted on Yell  
   
   GreenTruck74-1 
 3174 days ago
 
 
 Trustindex verifies that the original source of the review is Yell. Fast efficient excellent work at a reasonable  price.
  
 
     Posted on Yell  
   
   BlueDoor61-1 
 3175 days ago
 
 
 Trustindex verifies that the original source of the review is Yell. Very efficient contractor, in time and professional. Will use him again.
  
 
     Posted on Yell  
   
   BlueRock73 
 3175 days ago
 
 
 Trustindex verifies that the original source of the review is Yell. Great service, fast and professional! Thank you very much Armand I recommend you to all my friends and relatives. Well done quality and amazing job!
  
 
     Posted on Yell  
   
   MaroonComputer16 
 3209 days ago
 
 
 Trustindex verifies that the original source of the review is Yell. Excellent service and I am very impressed with the quality of the work. Armand was on time, very trustworthy and exceptionally professional. I highly recommend him to my family and friends for the excellent service. Thank you very much!
  
 
     Posted on Yell  
   
   PurpleTrophy15-1 
 3210 days ago
 
 
 Trustindex verifies that the original source of the review is Yell. I would highly reccommend Onsite Contractors. Armand is always available when we need him, and always does a great job, and he always keeps within the time-frame required. Definitley give these guys a call if you have any maintenance or plumbing work that needs doing! Great professional service.

Domestic Boiler Installation Near Me

If you’re searching for boiler installation near me or gas boiler installation near me, we provide trusted domestic services carried out by fully qualified engineers. Our team of experienced gas boiler installers work across local areas and London, delivering safe and efficient installations for all types of homes.

Whether you need a full system upgrade or a simple replacement, our boiler installer near me service includes system checks, correct boiler sizing, safe removal of your old unit, and full commissioning. We ensure every installation meets Gas Safe regulations and manufacturer standards.

We also provide boiler installation London for homeowners across the capital, offering reliable heating solutions tailored to flats, terraced houses, and family homes. From advice to final testing, we make domestic boiler installation straightforward, compliant, and built to last.

Commercial Gas Boiler Installation London

For businesses searching for gas boiler installation London or a reliable boiler installer near me, we provide professional commercial heating solutions across the capital. Our experienced gas boiler installers handle larger systems for offices, retail units, schools, and residential blocks.

Commercial boiler installation London requires detailed planning and accurate heat load calculations. Our qualified boiler installation gas engineers carry out full site surveys, system design, safe removal of existing plant equipment, and complete installation in line with UK safety regulations.

If you are looking for dependable gas boiler installation near me for a commercial property, we ensure minimal disruption and maximum efficiency. Every system is fully tested and commissioned, delivering reliable heating and hot water for your premises all year round. And to keep your boiler running smoothly throughout the year we also provide annual boiler service from our team of Gas Safe Engineers. Call us now!

Call Us We Cover The Whole Greater London

24/7 Boiler & Heating Engineer

Even if you don’t find your area above, we are expanding everywhere in Greater London, so call us we can help!

Get a Free Quote from Gas Safe Boiler Installers

Searching for boiler installation near me or gas boiler installation London? Look no further.

Our fully qualified Gas Safe engineers are available across London to provide a safe, professional installation tailored to your property.

Get in touch now for your free, no-obligation quote and discover why we’re the go-to team for London boiler installations.

FAQ:

How much does boiler installation near me typically cost?

The cost of a boiler installation depends on several factors, such as the size of your home, the type of boiler you need and the condition of your existing system. Every property is different, so there’s no single price that fits all.

Before starting any job, a qualified installer will inspect your current setup to understand what’s required. Things like gas supply, flue position, pipe size and water pressure all affect the final cost and the kind of boiler that’s suitable for your home.

In most cases, we provide a detailed, fixed quote after the initial survey. That way, you know exactly what’s included the boiler, labour, controls, fittings and any additional work such as power flushing or thermostat upgrades.

It’s always best to avoid estimates given over the phone without a proper inspection. A site visit ensures accuracy and avoids hidden costs later. Professional installers will also recommend efficient models that match your household’s heating and hot water needs, helping you save energy in the long run.

How long does a standard gas boiler installation take in London?

A standard gas boiler installation in London usually takes one to two days, depending on the job’s complexity and the type of system being fitted. If it’s a like-for-like replacement for example, changing an old combi boiler for a new one in the same position most engineers can complete it within a single working day.

When converting from a system or regular boiler to a combi, it can take longer. This is because the old cylinder and water tanks need to be removed, and the pipework often needs adjusting. Installers may also need to run new flue or condensate lines, fit controls and carry out safety checks.

At the end of the installation, the engineer will test the system, balance the radiators and make sure the new boiler is working efficiently. They’ll also register the installation with Gas Safe and the manufacturer to activate your warranty.

While most homes only require a short installation time, larger properties or systems with underfloor heating may need additional work. A proper on-site assessment will always give you a clear timeline before any work starts.

Are your boiler installers in London Gas Safe certified?

Yes every boiler installer we use in London is Gas Safe registered. This certification is legally required for anyone working on gas appliances in the UK. It means they’ve been properly trained, tested and approved to work safely with gas boilers, pipework and flues.

When you hire a Gas Safe engineer, you can be confident that your boiler installation meets national safety standards. . Once the installation is complete, our engineers will issue a Gas Safe certificate confirming that the work meets regulations.

We always encourage customers to ask to see their engineer’s Gas Safe ID card before work begins. The card shows their photo, registration number and the types of gas work they’re qualified to do. You can also verify their details on the official Gas Safe Register website.

Choosing certified engineers not only keeps your home safe but also ensures your boiler warranty remains valid. Unregistered or unqualified installers risk voiding your warranty and could put your property at serious risk of gas leaks or carbon monoxide exposure.

What type of boilers do your boiler installation companies London install?

Our boiler installation teams in London work with all major types of domestic boilers, including combi boilers, system boilers and regular (conventional) boilers. The right choice depends on your home size, water demand and existing setup.

Combi boilers are the most popular option for flats and smaller homes because they provide heating and hot water directly from the mains no tanks or cylinders needed. They’re compact, efficient and great for properties with limited space.

System boilers are better suited for medium to large homes with more than one bathroom. They work with a hot water cylinder, allowing multiple taps or showers to run at the same time without losing pressure.

Regular boilers, also known as heat-only boilers, are typically found in older properties with existing tanks and cylinders. They’re reliable for homes with traditional heating systems and larger hot water storage.

We install trusted brands like Worcester Bosch, Vaillant, Ideal, and Baxi. Before installation, our engineers assess your property to recommend the best system for your heating needs, water pressure and budget.

Book Your Boiler Installation in London Today

At Onsite Contractors and Plumbing Ltd, we make the process fast, simple and affordable. Our expert gas boiler installers work with all leading brands, including Vaillant and Baxi, to give you the perfect heating solution for your home or business.

Call us today to book your installation and enjoy reliable heating with energy savings from day one.

Onsite Contractors and Plumbing Ltd. has been serving London for over 10 years. We are a locally owned and operated business dedicated to customer satisfaction. Over 70% of our work comes through referrals, reflecting the trust our customers place in us. Whether you need plumbing, heating, or gas services, our experienced team is here to help.

Onsite Contractors and Plumbing Ltd. Registered office address: Apex House, 2nd Floor, Grand Arcade, London, England, N12 0EH, Company number : 09510946

Boiler Installation London

Boiler Installation Near Me

Boiler Installation London

Gas Boiler Installers

Our Services

24/7 Service In London

Boiler Repairs

Boiler Servicing

Annual Boiler Service

Gas Safe Engineer

Underfloor Heating

Central Heating

This is the heading

Central Heating

Powerflush

10+ Years of experience

Local Service

Trusted & friendly

24/7 support

Boiler Installation London

Vaillant Boiler Installation

Ideal Heating Boiler Installation

Worcester Bosch Boiler Installation

Baxi Boiler Installation

Corgi Boiler Installation

Combi Boiler Installation

System Boiler Installation

Domestic Boiler Installation Near Me

Commercial Gas Boiler Installation London

Call Us We Cover The Whole Greater London

Get a Free Quote from Gas Safe Boiler Installers

FAQ:

Book Your Boiler Installation in London Today

Complete Installation

Premium Boiler

10-Year Warranty

Boiler Installation London

Boiler Installation Near Me

Boiler Installation London

Gas Boiler Installers

Our Services

24/7 Service In London

Boiler Repairs

Boiler Servicing

Annual Boiler Service

Gas Safe Engineer

Underfloor Heating

Central Heating

This is the heading

Central Heating

Powerflush

10+ Years of experience

Local Service

Trusted & friendly

24/7 support

Boiler Installation London

Vaillant Boiler Installation

Ideal Heating Boiler Installation

Worcester Bosch Boiler Installation

Baxi Boiler Installation

Corgi Boiler Installation

Combi Boiler Installation

System Boiler Installation

Domestic Boiler Installation Near Me

Commercial Gas Boiler Installation London

Call Us We Cover The Whole Greater London

Get a Free Quote from Gas Safe Boiler Installers

FAQ:

Book Your Boiler Installation in London Today

Ready For Winter? Special Boiler Offer

Top-range boiler replacement with a 10-year manufacturer’s warranty, fully inclusive for £2,500.

Complete Installation

Premium Boiler

10-Year Warranty

Ready For Winter?
Special Boiler Offer