Boiler Repair London

Guaranteed heating and gas engineers for 24/7 central heating and gas repairs in London. Our local Gas Safe heating engineers are one call away from delivering urgent heating and gas services in London.

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Boiler Service In London


London Boiler Installation

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Boiler Repair London

What makes our service amazing.

Gas Safe Registered

Gas Safe Registered, safe contractor approved and experienced engineers

12 Month Guarantee

12 month Fixcrowd gas service guarantee

10 Year Baxi Guarantee

Up to 10 years of cover for Baxi boilers installed by Fixcrowd

12 Year Worcester Guarantee

Up to 12 year guarantee for Worcester Bosch boilers installed by Fixcrowd

10 Year Vaillant Guarantee

Up to 10 years of cover for Vaillant boilers installed by Fixcrowd

Fixed Price

Fixed pricing structure guaranteed for heating and gas quotes

boiler repair vaillant

At FixCrowd, our boiler repairs London team offers a wide range of services to address all your boiler needs. Our services include:

Emergency Boiler Repairs

Boiler emergencies can occur at any time, causing significant inconvenience and potential discomfort. Our boiler repairs London specialists provide 24/7 emergency repair services to address urgent issues promptly and efficiently, ensuring your home remains warm and safe.

Boiler Diagnosis and Repair

A malfunctioning boiler can lead to a variety of problems, from insufficient heating to complete system failure. Our boiler repairs London engineers use state-of-the-art diagnostic tools to identify the root cause of the problem and provide effective repairs, ensuring your boiler is back to optimal performance.

Boiler Maintenance and Servicing

Regular maintenance is crucial to the longevity and efficiency of your boiler. Our boiler repairs London team offers comprehensive servicing packages designed to keep your boiler in top condition. Regular checks and servicing can prevent unexpected breakdowns and costly repairs, ensuring your boiler runs smoothly all year round.

Boiler Installation and Replacement

If your boiler is beyond repair or you’re looking to upgrade to a more efficient model, our boiler repairs London experts can help. We offer professional installation and replacement services, ensuring your new boiler is installed correctly and operates efficiently from day one.

Best Boiler Repair in London

Choosing FixCrowd means choosing quality, reliability, and excellent customer service. Here’s why our customers trust our boiler repairs London experts:

Experienced and Certified Engineers

Our team consists of highly trained and certified boiler repairs London professionals with extensive experience in handling various boiler issues. We stay updated with the latest industry standards and practices to provide you with the best service possible.

Prompt and Reliable Service

We understand the importance of timely service, especially in emergencies. Our boiler repairs London team is committed to providing prompt and reliable solutions to all your boiler repair needs.

Customer Satisfaction

At FixCrowd, customer satisfaction is our top priority. Our boiler repairs London engineers listen to your concerns, provide transparent pricing, and ensure that all work is completed to the highest standards.

Advanced Tools and Techniques

We use the latest tools and techniques to diagnose and fix boiler issues efficiently. This ensures that our boiler repairs London services are both effective and long-lasting.

Boiler Repair London

At FixCrowd, we are committed to maintaining the highest standards of professionalism and quality in every job our boiler repairs London team undertakes. Our dedication to excellence has earned us a reputation as one of the most reliable boiler repair service providers in London. We believe in building long-term relationships with our clients based on trust, reliability, and exceptional service.

Our approach is centered around understanding the unique needs of each customer and delivering tailored solutions that meet those needs effectively. Whether it’s a minor repair or a complete system overhaul, our boiler repairs London team handles each project with the utmost care and attention to detail. Our goal is to ensure that your heating systems are functioning optimally and that you have peace of mind knowing your home is in good hands.

fixcrowd London Property Service
Boiler Repairs London

Eco-Friendly Boiler Solutions

At FixCrowd, our boiler repairs London specialists are committed to providing eco-friendly heating solutions. We understand the importance of conserving energy and reducing carbon footprints, which is why we offer a range of energy-efficient boilers designed to help you save on energy costs and reduce your environmental impact. Our boiler repairs London team can provide advice on selecting the most eco-friendly options and ensure their proper installation.

Local, trusted and experienced.

See what our customers say about us.

Abby Keningale
A fantastic company that go above and beyond for their customers. They are responsive to queries, deliver excellent standards of work for reasonable prices, and always take the time to answer any queries. Would highly recommend!!
Agata Ryszewska
Excellent work. Thank you 👍
Samanta Lehto
Excelent customer service and efficient work. Areef managed to get a plumber to visit my residence in about 30 minutes for an emergency work, and kept me updated all the way through in regard to the service being done. The plumber attending my address was also very friendly and professional. I would highly recommend Fixcrowd services.
Jennifer Sampson
Barry from Fixcrowd did a great job to repair the leaking radiator and doorbell. He was so helpful and efficient. He also fixed a light switch that he noticed was broken. The team at Fixcrowd are professional and reliable.
Hassan Ahed
The team at Fixcrowd have exceeded my expectations! The team is punctual, professional and super efficient. Could not recommend them enough. A fine example of delivering a hassle free service without emptying your pockets.
C4H4AsH Mac
Jeffrey was awesome, answered my query efficiently and sorted a call back. Thanks put my mind at rest and was brilliant !
Zain Umer
Needed some urgent repair work to boiler. Fast, easy to arrange and decent price. Staff very professional is job. Would recommend and use again
Kinan K
Fix crowd are very professional, extremely helpful and handle all our properties with care which makes the experience of working with them very rewarding! I would not hesitate to recommend them to anyone looking to have a service with very high standard!
Katey Tetteh
The service was great and Harvey was extremely helpful in guiding me through the letting process. He was always very timely with his responses too.
Charles Weld

London Gas Engineer

Radiator replacement
Boiler replacement
Radiator Installation
Radiator flushing
Fixing cold radiators
General heating issues
Fixing leaky Pipes
Underfloor heating repair

Boiler Repair London

There are four major types of boilers:

  1. Combination boiler:
    Combination or combi boilers are usually compact with 4-5 copper pipes connected at the bottom. It is not attached to any external pump or large hot water cylinder.
  2. System boiler:
    You can identify a system boiler by checking underneath. It usually comprises three copper pipes rather than the 5 in a combi. Besides, some also come with a hot water cylinder. You can see a pressure gauge at the front of the casing.
  3. Heat-only boiler: 
    Also known as a regular boiler, it has three copper pipes. Two at the top and one at the bottom. This is usually with a hot water cylinder, a cold water storage tank, and an external pump.
  4. Back boiler:
    Using old back boilers is not allowed in the UK unless you update them. Back boilers are often installed at the back of a gas fire.


All the above boilers (excluding back boilers) are available in condensing and non-condensing variants.

Generally, all boilers installed in England are now condensing given their high efficiency and cost-friendliness.

Boilers hold extreme pressure, flammable gas and high temperature, making them unsafe for DIY diagnosis. We don’t recommend you attempt to do any work on your boiler. You can only legally service a boiler on your own if you’re trained, competent, and accredited by Gas Safe.  If your gas boiler breaks down, make sure you reach out to a Gas Safe and accredited engineer.

Some work like re-pressurizing, resetting, bleeding air out from radiators, or changing thermostat batteries can be done by you. We would always recommend you call a professional plumbing and heating engineer instead of risking your safety. Most jobs need specialist tools, like a power flushing machine, radiator valves, or a thermal camera to view cold spots.

Call Fixcrowd to book a nearby boiler repair in London. You’ll need to arrange a gas-safe registered engineer when:

  • There is no heat at all
  • There is water leakage
  • Strange noises are coming from your boiler
  • The pilot light is off
  • The water pressure drops below the standard level
  • Radiators are not heating properly
  • There is sludge in the system
  • You can’t use your underfloor heating system


All gas appliances, including boilers, must be inspected at least once a year. You can flush a central heating system using two methods; power flush or clean each radiator individually.

A power flush is the fastest way to remove sludge and offer the best results.

Radiator cleaning is a time-consuming process. You’ll need to turn off the heating system, to avoid leaks or injury.

The costs of a radiator power flush can vary depending on the number of radiators, and the complexity of the model. Call the Fixcrowd team If you want to know how much a power flush or gas certificate will cost.

Gas Safety Certificate checks vary between £50 to £160 depending on the number of appliances you’re using. The engineer has to check your boiler for repair or replacement. The additional boiler servicing cost may add up to your main cost.

Get in touch with our team for the cost of the gas safety certificate today.

Boiler installations can be complex and depend on a few factors. Swapping a like-for-like combination boiler with another combi unit takes a Fixcrowd gas service engineer a few hours.

Installing a new boiler from scratch can take a day on average or two in some cases.

Fixcrowd can help you book same-day boiler repairs in London, including underfloor heating service, installation, and maintenance for residential, commercial and investment properties.


Landlords must provide gas safety certificates to their tenants every 12 months. You can book an urgent annual gas safety check today. Call us or book online for availability.

Note:  Homeowners don’t have to renew their gas certificates annually unless they offer lodging services. However, we recommend you get your gas safety checks annually for personal and environmental safety. You can contact your local authorities for any compliance questions.

You also need a boiler installation certificate which ensures your boiler is clean and working.

If your heating system is working fine, you will only need a power flush every 5 to 6 years. This prevents damage to metallic components and flushes out sludge buildup and blockages.

Fixcrowd engineers are just a call away. Our on-call emergency plumbing services cover residential, commercial, and investment properties. Our services cover installing and fixing bathrooms, sinks, dishwashers, showers, gutter repairs, burst pipes, radiator installation, and more.

Fixcrowd is the best destination for boiler repair services in London. Our staff are highly professional and reliable, giving you peace of mind when it comes to boiler repair. Fixcrowd offers boiler repair solutions at competitive and affordable prices, with same-day service available. Our work is backed by our commitment to customer satisfaction, so you can rest assured your boiler will be repaired quickly and reliably. With more than 10 years of experience, we can tackle any boiler repair problem efficiently and fast.

Our team of experienced technicians specialize in boiler repair and provide solutions for a range of boilers, from gas, to electric boilers. We are dedicated to providing quality work and excellent customer service, so that you can count on Fixcrowd for all of your boiler repair needs in London. Our technicians will assess your boiler for any potential issues, as well as perform any necessary repairs. We also provide maintenance services to help prolong the life of your boiler.  

Fixcrowd is the best option for boiler repairs in London. We have the experience, tools, and knowledge required to repair your boiler efficiently and cost-effectively. We use the latest and most reliable methods to diagnose and repair your boiler. Our boiler repair services are quick, skilled and efficient, so you can get your boiler back up and running in no time. We can also provide emergency boiler repair services in London, helping to keep your boiler functioning properly when you need it most.

From boiler maintenance to full replacement, Fixcrowd provides a range of boiler repair services in London. Our team of professionals have the necessary skill and knowledge to carry out any kind of boiler repair task, no matter how large or small. With our boiler repair services, you can rest assured that your boiler will be in safe, reliable hands. With Fixcrowd’s boiler repair services, you won’t have to worry about expensive boiler repair bills or unreliable service.

At Fixcrowd, you can trust us for all your boiler repair needs in London. Our experienced and dedicated professionals will strive to give you the best boiler repair service experience possible. We are committed to providing excellent customer service, so you can place your trust in Fixcrowd for all your boiler repair needs in London. Whatever your boiler repair needs, Fixcrowd guarantees a quick, reliable, and cost-effective solution.

At fixcrowd, we offer a diverse range of services in London. These services include Heating & Gas, Plumbing & Drainage, Electrical, Painting & Decorating, Bathroom Fitting, Kitchen Fitting, Landscape Gardening, and Handyman. 

Boiler repair can be classed as an emergency in certain situations. For instance, if the boiler is leaking gas or water, it can pose a severe safety risk to your home and family. In such cases, immediate boiler repair is necessary to prevent further damage or harm. If you suspect a gas leak or water damage, make sure to turn off the boiler and contact a professional boiler repair technician as soon as possible. A quick response is vital in emergency boiler repair situations. 

Whether it is worth repairing a boiler depends on several factors, including the age and efficiency of the boiler, the cost of repair, and the frequency of previous repairs. If the boiler is relatively new and the repair cost is low, it might be worth repairing it. However, if the boiler is old and has required frequent repairs in the past, it may be more cost-effective to replace it with a newer, more efficient model. Before deciding, consult with a boiler repair expert to evaluate the condition of your boiler and determine the best course of action. 

A boiler repair engineer is a qualified professional who specializes in diagnosing and fixing problems with boilers. Their primary responsibilities include inspecting boilers to identify issues, performing necessary repairs, and ensuring the safe and efficient operation of the system. Boiler repair engineers also conduct routine maintenance to prolong the life of the boiler and prevent future issues. They have extensive knowledge of boiler systems and components, allowing them to provide expert advice and guidance on boiler repair and maintenance. 

Some common boiler issues to be aware of include: 

  1. Strange noises: If your boiler is making unusual noises, such as banging, whistling, or gurgling sounds, it may indicate a problem that requires boiler repair.
  2. Leaks: A leaking boiler can lead to water damage and mold growth. If you notice any signs of leakage, contact a boiler repair technician immediately.
  3. Inconsistent heating: If your boiler is not providing consistent heat throughout your home, there could be an issue with the thermostat, radiators, or the boiler itself, necessitating boiler repair.
  4. Pilot light problems: A malfunctioning pilot light can cause the boiler to shut down. If you have difficulty relighting the pilot or it keeps going out, seek boiler repair assistance.
  5. Loss of pressure: If your boiler’s pressure is consistently low, it may be a sign of a leak or an issue with the pressure relief valve, both of which require boiler repair.


You may need boiler repairs if you notice any of the following signs: 

  1. Your boiler is not heating your home adequately or evenly.
  2. The boiler is making strange noises or emitting odd smells.
  3. There is a visible leak or signs of water damage near the boiler.
  4. The boiler’s pressure is consistently low or fluctuating.
  5. The pilot light is frequently going out or difficult to ignite.


In any of these situations, it is essential to consult a boiler repair expert to diagnose and fix the issue promptly. Regular boiler maintenance can help prevent many of these problems, ensuring that your boiler operates efficiently and safely. It is recommended to schedule an annual boiler service with a qualified boiler repair engineer to inspect, clean, and maintain your boiler system. This proactive approach will help you identify potential issues early and minimize the need for boiler repairs in the long run. 

Being aware of the common issues that can arise with boilers and knowing when to seek professional boiler repair assistance is crucial for maintaining the safety and efficiency of your home heating system. Regular boiler maintenance, coupled with timely boiler repairs when needed, can help prolong the life of your boiler and provide you with peace of mind. Keep the boiler repair engineer’s contact information handy and don’t hesitate to reach out to them if you notice any signs of trouble with your boiler.

Yes, plumbers are trained and qualified to fix boilers. They have the necessary expertise to diagnose and repair various boiler issues.

A broken boiler can be classified as an emergency repair, especially during colder months or when it significantly affects your daily activities, such as providing hot water or heating. It is recommended to contact a professional service promptly to assess the situation.

The duration of time you can be left with a broken boiler depends on the specific issue and its impact on your daily routine. It is important to address the problem as soon as possible to minimize inconvenience and potential damage. Contacting a professional boiler repair service, like FixCrowd, will help expedite the resolution process.

Upgrading to a high-efficiency boiler can result in lower energy bills, reduced environmental impact, and improved heating performance. These boilers are designed to maximize fuel efficiency and can be a cost-effective long-term solution.

Whether your boiler needs urgent repairs or routine maintenance, we've got you covered. Our expert team is readily available to answer any questions you may have and to provide solutions for boiler repair in London.

Heating Engineer Near Me

Our mission is to provide the best heating services in the city of London. Fixcrowd Gas Safe Engineers can reach any postcode within the M25.