Engineer with checkboard fixing boiler

You can't put a price on hot water!

A properly functioning boiler keeps your home warm and toasty during the winter months, ensures you have access to hot-water year-round and, overall, can be the difference between a liveable and unliveable home.

While boilers can be prone to losing efficiently and malfunctioning, particularly without proper servicing, SM Gas Ltd have you covered. Our services range from boiler installations to boiler servicing to boiler repairs in Derby and the nearby Nottingham and Sheffield, meeting all your heating needs and saving you money in the long-term.

Worried about strange sounds from your boiler or rising bills?

Get in touch with SM Gas Ltd at 07517 351691 and we'll see if we can help.

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Boiler Plans for Convenience and Peace of Mind

Regular servicing is vital for keeping your boiler operating efficiently, preventing costly breakdowns and keeping your boiler in warranty. SM Gas Ltd's monthly service plans cover everything you need at a single monthly cost, with different tiers available depending on your needs and budget – All at a lower cost than British Gas.





  • Annual servicing
  • One free 24/7 callout





  • Annual boiler servicing
  • Carbon monoxide test
  • Part contributions towards a boiler replacement
  • Servicing for your central heating system
  • Unlimited free 24/7 callouts





  • Everything in the Silver plan
  • Servicing for your home's plumbing
  • Servicing for your home's heating
  • Unlimited free 24/7 callouts





Our Boiler Services in Derby


Looking to upgrade your boiler for better efficiency or a new model? SM Gas Ltd can handle the entire installation process to ensure it's safe, functional, in line with your preferences and meets all the necessary regulations. All our boilers are installed with a 10-year manufacturer warranty.


Facing a breakdown? Don't panic – SM Gas Ltd can get a heating engineer to your property in as little as 4 hours on no notice, getting your property back on track quickly.


Regular upkeep keeps your boiler running smoothly and efficiently outside an annually scheduled servicing, including cleaning, glue gas checks and performance optimisation to prevent future problems.


Closeup of gas engineer repairing boiler



Covering all your property's needs

Beyond our boiler services in Derby, SM Gas Ltd are proud to stand as a one-stop solution for all things plumbing and gas as well. Find out more about our plumbing services here and our gas services here.






 Gas engineer repairing boiler pipes


Woman on phone adjusting boiler


Frequently asked questions about our boiler services in Derby

Why is my boiler making strange noises?

Unusual noises such as banging, whistling, or gurgling may indicate issues like air in the system, limescale buildup, or a malfunctioning component. It's recommended to have a professional inspect and diagnose the problem.

How often should I have my boiler serviced?

Annual boiler servicing is recommended to ensure it operates efficiently, prevent potential issues, and prolong its lifespan. Regular maintenance can also help identify and address minor problems before they become major issues.

What should I do if my boiler is leaking?

A leaking boiler could be a sign of a faulty pressure relief valve, a corroded pipe, or a damaged seal. Turn off the boiler, and contact a qualified technician to assess and repair the issue promptly.

Why is my boiler losing pressure?

Boiler pressure loss may be due to issues such as a water leak, a faulty pressure relief valve, or a problem with the expansion vessel. A technician can investigate the cause and make the necessary repairs.

How can I improve the energy efficiency of my boiler?

Regular maintenance, including cleaning the heat exchanger and checking for proper insulation, can improve boiler efficiency. Upgrading to a more energy-efficient model may also be considered for long-term savings.

What is the lifespan of a typical boiler?

The lifespan of a boiler varies, but with proper maintenance, many boilers can last between 15 to 20 years. As boilers age, their efficiency may decrease, and upgrading to a newer model could be beneficial.

Can I install a smart thermostat with my boiler?

In many cases, yes. Smart thermostats can be compatible with boilers, providing enhanced control and energy efficiency. However, it's essential to ensure compatibility, and professional installation is recommended.

Is it normal for my boiler to emit an odour?

Unusual odours, such as a burning smell, could indicate a problem with the boiler. It's crucial to turn off the boiler, ventilate the area, and seek professional assistance to diagnose and address the issue.

Can I bleed my radiators myself?

Bleeding radiators is a common maintenance task that homeowners can perform. However, if you're unsure or encounter difficulties, it's best to seek guidance from a professional technician.

What should I do if my boiler breaks down during the winter months?

In case of a boiler breakdown in winter, contact a heating professional immediately. Many companies offer emergency services to address urgent issues and restore heat to your home promptly.