WhatsApp call button

Boiler Servicing in Greenwich

As the winter months approach, it's essential to ensure that your heating system is running efficiently and safely. At McGrath Heating Services Ltd, we provide reliable and professional boiler servicing in Greenwich and surrounding areas. Our team of experts has over 22 years of experience in the heating industry, with Gas Safe training and numerous accreditations, making us the go-to choice for all your heating needs.

The benefits of boiler servicing in Greenwich

Boiler servicing is an essential maintenance task that can provide numerous benefits to your heating system and your home. Here are some of the key benefits of boiler servicing:

  • Improved Efficiency and Performance: A well-maintained boiler will operate more efficiently, reducing your energy bills and improving your heating system's overall performance.
  • Extended Lifespan: By identifying and fixing minor issues before they become major problems, you can avoid costly breakdowns and keep your boiler running smoothly for longer.
  • Increased Safety: Faulty boilers can be dangerous, emitting carbon monoxide gas that is both odourless and deadly.

Regular boiler servicing can provide numerous benefits, including improved efficiency and performance, extended lifespan, increased safety, reduced repair costs, compliance with regulations, and peace of mind. To ensure that your boiler is functioning correctly and safely, it's essential to have it serviced by a qualified and experienced engineer at least once a year. Our heating engineers offer reliable and prompt boiler servicing in Greenwich and the surrounding areas. Request a free, no-obligation quote today!

(More: Boiler Servicing FAQ's)

Boiler Service Greenwich

Signs Your Boiler Needs Servicing

Strange Noises

Is your boiler making strange banging, whistling, or gurgling noises? These unusual sounds could indicate underlying issues such as trapped air, limescale buildup, or a malfunctioning component. Ignoring these noises can lead to further damage and decreased efficiency.

Unusual Smells

Do you detect any unusual odours coming from your boiler? A foul smell, especially one resembling rotten eggs, could indicate a gas leak, which poses a serious safety hazard. Other smells, such as burning or musty odours, may suggest overheating or mould growth within the boiler.

Fluctuating Water Pressure

Have you noticed fluctuations in your boiler's water pressure? Low water pressure can result in reduced heating performance, while high pressure may indicate a faulty pressure relief valve. Monitoring and maintaining the correct water pressure is crucial for optimal boiler operation.

Leaking or Dripping

Do you see any water leaking or dripping from your boiler? Even minor leaks can escalate into major issues if left unattended. Leaks can stem from damaged seals, corroded pipes, or pressure valve issues. Addressing leaks promptly can prevent water damage and costly repairs.

Slow Heating

Is your boiler taking longer than usual to heat your home? A decline in heating performance could indicate various issues, such as a malfunctioning thermostat, pump failure, or sludge buildup in the system. Prompt servicing can restore your boiler's efficiency and comfort levels.

Frequent Cycling

Does your boiler cycle on and off frequently? This short cycling behaviour not only wastes energy but also puts unnecessary strain on the system. Causes of frequent cycling include thermostat issues, airlocks, or improper boiler sizing. Servicing can resolve these issues and improve energy efficiency.

Pilot Light Issues

Is your boiler's pilot light frequently going out or burning a different colour? A yellow or orange flame instead of a steady blue one may indicate a carbon monoxide leak or insufficient airflow. It's essential to address pilot light issues immediately to prevent carbon monoxide poisoning and ensure safe operation.

Cold Radiators

Are some of your radiators not heating up properly? Cold spots or inconsistent heating across radiators often indicate circulation problems within the boiler system. This issue may stem from airlocks, sludge buildup, or pump failure, requiring professional servicing to restore proper circulation.

Water Quality Checks for Your Boiler Service

The introduction of new British Standards has made it mandatory to test water quality when carrying out a boiler service. This new regulation aims to ensure that the water running through your central heating system is safe, efficient, and clean. The inspection will assess the quality of the water, including its chemical balance, pH level, and the presence of any debris or contaminants that may negatively impact the central heating system's efficiency.

Over time, debris and other contaminants can build up within the central heating system, causing significant problems for the system and the boiler. For example, the accumulation of debris can cause blockages and reduce the flow of water through the pipes, reducing the heating system's overall efficiency. When your heating system isn't running efficiently, your boiler will need to work harder to heat your home, increasing the likelihood of a breakdown and reducing the lifespan of the boiler.

By carrying out system water quality checks as part of your boiler service, our team of experts can help identify any issues with the central heating system that may lead to costly repairs or replacements. In addition, this inspection will enable us to detect and remove any debris or contaminants that may be impacting the system's efficiency and performance, ensuring that your boiler runs smoothly and your heating system operates at peak efficiency.

Why Choose Us for Your Boiler Servicing?

There are several reasons why you should choose McGrath Heating Services Ltd for your boiler servicing needs in Greenwich:

  • Gas Safe Registered: Our engineers are Gas Safe registered, ensuring that all work is carried out to the highest safety standards.
  • Which? Trusted Trader: We are a Which? Trusted Trader, which means that we have been assessed and approved by Which? as a reputable and trustworthy business.
  • Verified by Expert Trades: We are verified by Expert Trades, a trusted platform that connects homeowners with reliable and trusted tradespeople.
  • Baxi Approved Installer: As a Baxi approved installer, we can offer up to 10 years warranty on Baxi boilers installed by us.
  • Vaillant MasterTEC Installer: We are Vaillant MasterTEC installers, which means that we have undergone specialist training and can offer extended warranties on Vaillant boilers.
  • Checkatrade Member: We are also a Checkatrade member, meaning that we have been vetted and approved by Checkatrade and have a rating of 9.92 out of 10.
  • Federation of Small Businesses: We are proud members of the Federation of Small Businesses, demonstrating our commitment to professionalism and customer service.


As Baxi Approved Installers and Vaillant MasterTEC Installers, we offer up to 10 years warranty on Vaillant boilers installed by McGrath Heating Services Ltd. This means that you can have peace of mind knowing that your boiler is covered for any unexpected issues.

Happy Customers

At McGrath Heating Services Ltd, we pride ourselves on our customer service and transparency. We have over 95 positive reviews on our website from happy customers who have used our services. Our team is committed to providing the highest level of service to our customers, and we work hard to ensure that all work is carried out to the highest standard. Check our gallery page.

Contact Us Today for a Free Quote

If you need boiler servicing in Greenwich, and the surrounding areas, don't hesitate to contact us on 0781 273 9696. Our team of experts will be happy to provide you with a free quote and answer any questions you may have. You can also get in touch via our contact form on our website.

If you want a reliable and professional boiler servicing in Greenwich, look no further than McGrath Heating Services Ltd. Our team of experts has the knowledge, experience, and accreditations to ensure that your heating system is running efficiently and safely. Contact us today to see how we can help you.

Click below to get yourself a quote