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What’s involved in a boiler service?

An engineer conducting a boiler service.Booking your annual boiler service is one of those chores that can be tempting to put off, particularly if your boiler seems to be working fine. But regular servicing is vital in ensuring that your boiler stays safe and continues to run smoothly and efficiently for you.

If you’re thinking about booking your service, you might be wondering what’s involved that makes it so important. So, we’ve put together a list of checks that your engineer will take when conducting your boiler service, so that you know what to expect on the day.

We also explain why regular servicing is vital, whatever the age and condition of your boiler.

Our Standard boiler service includes

Now let’s look at what to expect when The Heating People service your boiler. Just be aware that not all tests or checks will be applicable, it will depend on the type of heating system that you have:


  • Check ventilation requirements
  • Visual inspection of boiler and flue
  • Removal of the boiler casing
  • Flue check
  • Gas checks
  • Combustion analysis
  • Cleaning
  • Check the expansion vessel
  • Documentation

Coming soon
Boiler and Heat pump Service Plans  

Plan 1

£ 10 Monthly
  • Coming Soon!

Plan 2

£ 15 Monthly
  • Coming Soon!

Plan 3

£ 19 Monthly
  • Coming Soon!

Service plans Quick Q&As

Questions? We can help!
  1. Regular servicing keeps you and your family safe.
  2. Regular servicing prevents problems from arising.
  3. Regular servicing will catch small problems early.
  4. Regular servicing keeps your boiler running efficiently.
  5. Regular servicing extends the lifespan of your boiler.
  6. Regular servicing is a legal requirement for landlords.
  7. Regular servicing maintains your boiler’s warranty.

The Heating and Hotwater Industry Council (HHIC) recommends booking your boiler service during the summer. This is to avoid any nasty surprises when the weather turns colder, and you need your boiler the most.

Unfortunately, boilers don’t last forever. If you’re wondering whether it’s time to upgrade your boiler, you might like to read our related blog: ‘Does my boiler need replacing?’

But here are a few warning signs that your current boiler might be on its last legs:

  • Your boiler is in its ‘golden years’;
  • Your energy bills have crept up without explanation;
  • Replacement parts are hard to find because of the age of your boiler;
  • Your heating system isn’t working like it used to;
  • You never have enough hot water;
  • Your boiler is regularly breaking down;
  • Your boiler or radiators are noisy;
  • Your boiler is leaking water;

All modern boilers are rated for efficiency under the European energy label introduced in September 2015. ErP stands for ‘Energy-related Products’. Under this scale, boilers are rated from A-G, with A being the most efficient, and G being the least efficient. To put this into context, a G-rated boiler with 73% efficiency will use 73% of the supplied energy for heating your home but the remaining 27% of energy will be lost. So, this means that for every £1 you spend on heating your home, 27p is wasted.

If you’ve done some research on boilers, you might have come across the phrase ‘Boiler Plus’ and be wondering what it means. Boiler Plus is a new(ish) set of rules on energy efficiency designed to improve the way you use energy in your home.

Since 2018, all boilers must have a minimum ErP (Energy related Products) rating of 92% and all gas and oil boilers must have appropriate time and temperature controls fitted.

In addition, when installed, combi boilers must have one of four of the following requirements fitted:

  • Flue Gas Heat Recovery – a system that enables the boiler to reuse heat that would have otherwise been wasted
  • Weather compensation – flow temperature can be modulated based on the outside temperature
  • Load compensation – flow temperature can be modulated from the boiler based on room temperature
  • Smart controls with automation and optimisation functions

Any boilers installed without the measures set out in the Boiler Plus standards, will be non-compliant with the Building Regulations.

Rest assured that all boilers installed by The Heating People comply with all the legal requirements under Boiler Plus.

If you’re wondering what you stand to gain from a boiler replacement (aside from a boiler that actually works!) Here are some of the key benefits:

  • A warmer, more comfortable home
  • More reliable hot water
  • Quieter boiler operation
  • Space saving
  • Reduced energy bills
  • Better for the environment
  • More control
  • Peace of mind
  • Manufacturer’s guarantee
  • Reduced repair costs
  • More convenient location
  • Make your home more attractive to future buyers

Boiler Service Liverpool

Map of Liverpool.The Heating People serve all of Liverpool.

Boiler Service St Helens

Map of St HelensThe Heating People serve all of St Helens.

Boiler Service Warrington

Map of WarringtonThe Heating People serve all of Warrington.

Boiler Service Southport

Map of SouthportThe Heating People serve all of Southport.