26 Sep. 23

Commercial Boiler Service London

If you are a business owner or manager in London, ensuring that your commercial boiler is properly serviced is crucial to maintaining a safe and efficient workplace. At UK Gas Plumbers Limited, we understand the importance of reliable heating systems and offer comprehensive commercial boiler service in London. With our 24-hour availability and a team of skilled professionals, we are here to address any boiler issues promptly. Whether it’s routine maintenance, repairs, or installation, our experts can provide the highest quality service to keep your business running smoothly. Contact us now at 0208 935 5572 or email us at info@ukgasplumbers.com for all your commercial boiler needs.

Types of commercial boilers

Fire tube boilers

Fire tube boilers are one of the most common types of commercial boilers used in various industries. These boilers have a cylindrical shell with the fire tubes running through it. The hot gases produced by the fuel combustion pass through these tubes, transferring heat to the surrounding water. Fire tube boilers are known for their simplicity and durability, making them suitable for small to medium-sized commercial establishments.

Water tube boilers

Water tube boilers, on the other hand, are more commonly used in larger commercial settings such as factories and power plants. These boilers have a network of tubes filled with water that are heated externally by hot gases from combustion. The heat transfer efficiency of water tube boilers is higher than that of fire tube boilers, making them more efficient in generating steam for large-scale operations.

Condensing boilers

Condensing boilers are a newer type of commercial boiler that are becoming increasingly popular due to their high energy efficiency. These boilers are designed to recover heat from the flue gases that would normally be wasted in traditional boilers. By condensing the water vapor in the flue gases, condensing boilers can achieve higher efficiency levels, resulting in lower energy costs. They are particularly suitable for buildings with high hot water demand, such as hotels and hospitals.

Signs that your commercial boiler needs servicing

Low efficiency

One of the first signs that your commercial boiler needs servicing is a decrease in efficiency. If you notice that your boiler is not heating the water or generating steam as quickly as it used to, or if your energy bills have suddenly spiked, it is a clear indication that the boiler is not functioning optimally. Regular servicing can help to identify and resolve any underlying issues that may be causing the decrease in efficiency.

Strange noises

Unusual noises coming from your commercial boiler, such as banging, hissing, or rumbling sounds, are another sign that servicing is required. These noises can be an indication of various problems, such as a buildup of mineral deposits, air in the system, or loose components. Ignoring these noises can lead to more serious issues down the line, so it is important to have your boiler inspected and repaired as soon as possible.


Leaking is a serious problem that should never be ignored when it comes to commercial boilers. Whether it is a minor leak or a major one, any signs of water leakage should be addressed immediately. Leaks can lead to corrosion, water damage, and even structural damage in your building. Regular servicing can help to identify and fix any leaks before they cause significant issues.

Uneven heating

If certain areas of your building are not receiving adequate heat, while others are overheating, it is a sign that your commercial boiler needs servicing. Uneven heating can be caused by various factors, such as blocked or damaged pipes, malfunctioning valves, or an imbalance in the system. A professional boiler service provider can diagnose the cause and make the necessary adjustments to ensure consistent and efficient heating throughout your building.

Benefits of regular commercial boiler servicing

Enhanced efficiency

Regular servicing of your commercial boiler can significantly improve its efficiency. By cleaning and tuning the components, checking for any faults, and making necessary repairs, a professional service provider can optimize the performance of your boiler. This, in turn, reduces energy waste and lowers your operating costs.

Extended lifespan

Proper maintenance and servicing can help to extend the lifespan of your commercial boiler. By identifying and fixing minor issues before they become major problems, you can avoid costly repairs or even premature replacement of the entire boiler. A well-maintained boiler can serve you for many years, ensuring uninterrupted heating or steam generation for your business.

Improved safety

Safety is a paramount concern when it comes to commercial boilers. Regular servicing helps to identify and rectify any potential safety hazards, such as leaks, faulty controls, or issues with ventilation. Neglecting proper maintenance can lead to carbon monoxide poisoning, explosions, or other dangerous incidents. Hiring a professional service provider ensures that your boiler is in compliance with safety regulations and operates safely.

Reduced energy costs

One of the most significant benefits of regular commercial boiler servicing is the reduction in energy costs. A well-maintained boiler operates more efficiently, consuming less fuel or electricity to produce the desired heat or steam. This directly translates into lower energy bills and substantial savings for your business in the long run. The investment in servicing quickly pays off through improved energy efficiency.

Importance of hiring a professional service

Proper training and knowledge

Commercial boiler servicing requires specialized knowledge and training. Professional service providers have the expertise to handle various types of boilers and understand their intricacies. They are familiar with the components, systems, and safety measures involved in boiler maintenance. By hiring a professional, you can be confident that your boiler is being serviced by someone who has the necessary skills and knowledge to do the job right.

Specialized tools and equipment

Boiler servicing often requires the use of specialized tools and equipment that may not be readily available to the average person. Professional service providers come equipped with the necessary tools and instruments to carry out inspections, repairs, and maintenance tasks with precision and efficiency. They have access to industry-standard equipment that allows them to identify problems and make accurate adjustments.

Compliance with regulations

Commercial boilers are subject to various regulations and safety standards. A professional service provider is well-versed in these regulations and ensures that your boiler meets all the necessary requirements. They can perform necessary tests, inspections, and documentation to demonstrate compliance with local laws. By hiring a professional service, you can have peace of mind knowing that your boiler is serviced in accordance with the rules and regulations that govern its operation.

Commercial boiler maintenance checklist

Inspecting and cleaning the heat exchanger

The heat exchanger is a critical component of a commercial boiler that transfers heat from the combustion gases to the water. Over time, the heat exchanger can accumulate dirt, soot, or mineral deposits that reduce its efficiency. During a maintenance service, the heat exchanger is inspected, and any buildup is cleaned to ensure optimal heat transfer.

Checking and adjusting thermostat settings

The thermostat controls the temperature of the water or steam produced by the boiler. During a servicing, the thermostat settings are checked to ensure they are accurate and calibrated correctly. Any necessary adjustments or replacements are made to maintain precise control over the heating process.

Testing and resetting safety controls

Commercial boilers have various safety controls in place to protect against potential hazards. These controls include pressure relief valves, limit switches, and flame safeguard systems. During a maintenance service, these controls are tested to ensure they are functioning correctly and providing the required level of safety. If any issues are detected, the service provider will reset or replace the controls as necessary.

Cleaning and lubricating moving parts

A commercial boiler has many moving parts, such as pumps, fans, and motors, that require regular cleaning and lubrication to prevent wear and tear. During a maintenance service, these parts are inspected, cleaned of any dirt or debris, and lubricated to ensure smooth and efficient operation. This helps to minimize friction and extend the lifespan of the components.

Checking and repairing leaks

Leaks in a commercial boiler can lead to water damage, corrosion, and inefficient operation. During a servicing, the service provider inspects the boiler and its associated pipes, valves, and fittings for any signs of leakage. If leaks are detected, they are repaired promptly to prevent further damage and ensure proper functioning of the boiler.

Factors to consider when choosing a commercial boiler service

Experience and expertise

When selecting a commercial boiler service provider, it is essential to consider their experience and expertise in working with the specific type of boiler you have. Look for a company that has a proven track record in servicing commercial boilers and has technicians with the necessary qualifications and certifications. An experienced service provider will be more familiar with the potential issues and challenges associated with different types of boilers, ensuring thorough and effective servicing.

Availability and response time

Boiler issues can arise at any time, and it is important to choose a service provider that offers prompt assistance. Look for a company that provides 24/7 emergency services, ensuring that you can get immediate help in case of a breakdown or any other urgent situation. Consider their response time and whether they have a reliable system in place to handle service requests quickly.

Customer reviews and testimonials

Reading customer reviews and testimonials can give you valuable insights into the quality of service provided by a commercial boiler service provider. Look for positive feedback and comments regarding the professionalism, expertise, and overall satisfaction of past clients. Negative reviews or complaints should be considered as potential warning signs.

Pricing and payment options

While price should not be the sole determining factor, it is important to consider the pricing structure of the service provider. Ask for a detailed breakdown of the costs involved in their services, including any additional charges for parts or repairs. Additionally, inquire about their payment options, such as whether they offer flexible payment plans or financing options.

How to find a reliable commercial boiler service in London

Online research and directories

Start your search for a reliable commercial boiler service provider in London by conducting online research. Use search engines to find companies in your area and visit their websites to gather information about their services, experience, and customer feedback. Online directories specifically tailored to plumbing and heating services can also provide a list of reputable service providers in London.

Ask for recommendations

Word-of-mouth recommendations can be highly valuable when looking for a reliable commercial boiler service. Ask colleagues, business associates, or friends in the industry for recommendations based on their personal experiences. Their insights can help narrow down your options and provide firsthand information about the quality of service provided by different companies.

Check for certifications and licenses

Ensure that any commercial boiler service provider you consider is properly licensed and certified to work on commercial boilers. Licenses and certifications are an indication of professionalism and competence in the industry. Verify the accreditation of the company and its technicians to ensure that they meet the necessary standards.

Request quotes and compare prices

Contact multiple service providers and request detailed quotes for their commercial boiler servicing. Compare the prices provided, taking into consideration the scope of services offered and any additional charges. Consider the value you are getting for the price quoted, weighing factors such as experience, expertise, and reliability.

Questions to ask a commercial boiler service provider

Are you gas safe registered?

Gas safety is a crucial aspect when it comes to commercial boiler servicing. Ask the service provider if they are Gas Safe registered, which is a legal requirement for anyone working with gas appliances. This accreditation ensures that the service provider has the necessary qualifications and knowledge to work safely and effectively with gas boilers.

How many years of experience do you have?

Inquire about the experience of the service provider in handling commercial boilers, specifically the type of boiler you have. A more experienced service provider is likely to have encountered various issues and challenges associated with commercial boilers and can provide efficient and effective solutions.

Can you provide references from previous clients?

Ask for references or testimonials from previous clients who have used the services of the provider. This allows you to gain insight into their reputation, reliability, and the level of customer satisfaction they deliver.

Do you offer emergency services?

Commercial boiler breakdowns can happen at any time and can significantly disrupt business operations. It is important to ask if the service provider offers emergency services and their availability outside regular working hours. Ensure that they have a dedicated support system in place to handle emergencies promptly and efficiently.

The process of commercial boiler servicing

Initial assessment and inspection

The first step in the process of commercial boiler servicing is an initial assessment and inspection of the boiler and its associated components. A qualified technician will evaluate the overall condition of the boiler, check for any visible signs of damage or wear, and identify areas that require attention or repairs.

Cleaning and maintenance tasks

Cleaning is a crucial part of boiler servicing to remove any built-up dirt, debris, or mineral deposits that can affect its efficiency and performance. The technician will clean various components, including the heat exchanger, burner, and flue system. This ensures optimal heat transfer and prevents blockages or obstructions that can lead to reduced efficiency.

Testing and calibration

To ensure that the boiler is operating within the required parameters, the technician will conduct various tests and calibration procedures. This includes checking and adjusting the pressure, temperature, and airflow settings to ensure they are in line with the manufacturer’s specifications. Any necessary repairs or replacements are also made to ensure proper function.

Documentation and recommendations

Throughout the servicing process, the technician will document their findings, the tasks performed, and any recommendations for future maintenance or repairs. This documentation serves as a reference for both the service provider and the building owner, providing a clear record of the work done and any areas that may need attention in the future.

Cost of commercial boiler servicing in London

Factors that affect the cost

Several factors can influence the cost of commercial boiler servicing in London. The size and type of the boiler, the scope of work required, the complexity of the system, and the condition of the boiler can all impact the cost. Additional services or repairs, such as fixing leaks or replacing faulty components, may also add to the overall cost.

Average price range

The average price range for commercial boiler servicing in London can vary depending on these factors. Prices can range from £100 to £500 or more, depending on the size and complexity of the system. It is important to obtain quotes from multiple service providers and compare the prices based on the services offered.

Additional services and charges

Additional services or charges that may be included in the overall cost of commercial boiler servicing include repairs, replacements of faulty parts, and any necessary certifications or documentation. Some service providers may offer maintenance contracts or service plans that cover routine servicing and provide additional benefits. It is essential to clarify and understand the scope of service and any associated charges before finalizing an agreement.