Maintenance 15 November 2024

When to Service Your Boiler: The Complete Guide

Your boiler should be serviced annually — but why? Learn how regular servicing saves you money, extends your boiler's life, and keeps your family safe.

Why Annual Boiler Servicing Matters

Your boiler is the hardest-working appliance in your home. It provides hot water and heating every day, yet most homeowners only think about it when something goes wrong. Annual servicing is the single best thing you can do to protect your investment.

Safety First

A poorly maintained boiler can produce carbon monoxide — an odourless, colourless gas that kills around 30 people in the UK every year. During a service, your Gas Safe registered engineer will check for any CO leaks, test the flue, and ensure all safety devices are working correctly.

Save Money on Energy Bills

An unserviced boiler loses efficiency over time. Dirt, debris, and limescale build up inside the heat exchanger, forcing your boiler to work harder to produce the same amount of heat. A well-maintained boiler runs at peak efficiency, which typically saves £50-100 per year on gas bills.

Protect Your Warranty

Most boiler manufacturers require annual servicing to maintain your warranty. If your boiler breaks down and you can’t prove it’s been regularly serviced, the manufacturer may refuse to cover the repair — leaving you with a bill that could run into hundreds of pounds.

What Happens During a Boiler Service?

A thorough boiler service from Gas Champion includes:

  1. Visual inspection — checking for leaks, corrosion, and damage
  2. Flue gas analysis — measuring combustion efficiency and CO levels
  3. Component check — testing the pump, fan, gas valve, and electronics
  4. Pressure check — ensuring system pressure is correct
  5. Safety device test — verifying all safety controls work properly
  6. Written report — a detailed summary of findings and any recommendations

When Should You Book?

The best time to service your boiler is late summer or early autumn — before you start using your heating regularly. This way, any issues are caught before the cold weather hits.

However, if your boiler hasn’t been serviced in over 12 months, don’t wait — contact Gas Champion today to book your annual service.

How Much Does a Boiler Service Cost?

At Gas Champion, a full boiler service starts from £70. We also offer service plans starting from £8.99/month that include your annual service plus additional benefits like priority booking and repair discounts.


Gas Champion is Gas Safe registered (636427) with 18+ years of experience. Book your boiler service today or call us on 07828 943 186.

Need a Heating Engineer Today?

Whether it's an emergency repair or a routine service, we're here to help. Gas Safe registered engineers available for same-day callouts.