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Warmhaus Boiler Service & Maintenance

Rob Wells
By: Rob Wells
Updated: 9th December 2021

A Warmhaus Combi boiler could heat your home for 10-15 years after installation but that means giving them the right level of care and maintenance.

To keep your Warmhaus boiler in top condition requires an annual boiler service carried out by a Gas Safe Registered engineer. During the service, the safety and efficiency of the boiler will be checked and tested; helping to protect your home and keep your heating bills as low as possible.

What is a boiler service?

Heating engineers carry out boiler services to check and test the unit in terms of safety, efficiency and performance. To get the most out of your boiler, a boiler service should be arranged annually and carried out by a Gas Safe engineer on gas boilers or an OFTEC registered engineer for boilers that run on oil.

All Warmhaus boilers run on gas, which means that you'll need to find a Gas Safe engineers for each service during the boiler's lifetime. Gas Safe engineers are the only people qualified enough to work on gas appliances by law and you can check that the engineer you're thinking of hiring is qualified by visiting the Gas Safe Register website. It's also very important to ask the engineer for their Gas Safe ID card as soon as they arrive at your property.

A thorough boiler service will last around 30 minutes, however, the total time it takes will depend on the type of boiler and whether or not the come across any faults during the inspection.

Boiler service checklist

Once you're happy that the engineer is qualified to work on your boiler, they get to work with the service. Here's everything that they'll do:

  1. An outer inspection to start will give the engineer chance to find signs of corrosion or leaking. They'll also make sure that the flame is burning a strong blue colour.
  2. After checking the outside, the engineer will look over the inside of the boiler, inspecting the parts and also giving them a clean. Internal components include the heat exchanger, burner, main injector, safety devices and spark probe.
  3. It's important for the engineer to make sure that the flue terminals are free from obstruction as well as being safely fitted and sealed. They'll also ensure that water and gas pipeworks are all in one piece.
  4. The gas pressure and flow settings will both be looked at to check that they're at the right levels.
  5. Finally, the boiler will be started up so the engineer can look for any operational faults with the boiler, temperature controls or potential issues for repair.

At the end of the boiler service, your engineer will provide a boiler service report giving details of everything that they carried out. This is your chance to ask the engineer any questions you might have about the service, they'll be happy to answer them.

Is your boiler due a service?



Why is it important to service your Warmhaus boiler?


Carbon monoxide is a potentially lethal gas that can escape your boiler and as it's colourless and odourless, it's hard to detect. During a boiler service, the engineer will be able to spot a leak, or the potential for a leak and get it resolved.

If you suspect carbon monoxide is leaking from your boiler then you shouldn't hesitate to get in touch with a Gas Safe engineer.

Keep heating bills low

Boiler efficiency drops as boilers age, which is bad news for your heating bills. Thanks to a boiler service, the engineer will ensure the efficient running of the system to help save you more money for longer.

Prevent breakdowns

Even the smallest of boiler issues can soon develop into something much worse. Arranging a boiler service helps to detect the early signs of a fault before it develops, saving you from having to deal with a large repair bill in the future.


Warmhaus Combi boilers come with a standard 2 year warranty but to keep it valid, the boiler must be serviced by a Gas Safe engineer who should complete a Benchmark checklist to leave with you.

How much does a Warmhaus boiler service cost?

The price of a Warmhaus boiler service will often fall somewhere between £60 – £120 but there are several factors that will influence the final cost:

  • Your location (the south tends to be more expensive than the north)
  • Type of boiler being serviced
  • Age of the boiler
  • The rates charged by the engineer

By arranging a boiler service during the summer, you could save yourself some money as heating engineers don't tend to have as much work on at that time of year. You'll also benefit from the peace of mind that your boiler is ready for the drop in temperature over the winter.

Should the engineer find an issue with your Warmhaus boiler then you'll be charged for the repair on top of the service.

NEVER try to carry out a boiler service yourself – always find a Gas Safe registered boiler engineer.

Is your boiler due a service?



Boiler service plans

You can take out a boiler service plan, or boiler cover, which include a service. These plans mean that you make monthly payments to cover the cost of a service and any repairs, rather than making the one-off payment.

Typically, the total cost of these plans will end up at over £100 per year making the one-off fee ultimately better for your bank balance. However, with a boiler cover plan you also have the additional peace of mind that you're covered should the boiler stop working.

If your Warmhaus boiler is over 8 years of age and no longer under warranty, then you might want to consider a boiler service plan. Otherwise, you're probably better off paying a one-off boiler service fee.

Boiler maintenance

While an annual boiler service should never be forgotten about, there are several checks that you can make yourself to keep your Warmhaus boiler running safely, effectively and efficiently.

Insulate your pipes

Should the external pipes connected to your boiler ever get blocked then it can lead to increased increased pressure, leaks or even complete breakdown. This is most likely to happen during cold weather as pipes are susceptible to freezing. This makes insulating your pipes with lagging (mineral or glass wool, polyethylene or foam) very beneficial.

Monitor the pressure

As boilers age, they can lose pressure. This pressure is needed for the boiler to operate as it should, so keeping an eye on the pressure gauge is very important. Whether you find that the pressure is too high or too low, you can repressurise the system yourself following the instructions provided by the manufacturer.

Insulate your home as much as possible

A poorly insulated home will be letting the heat generated by your boiler escape, meaning that the boiler has to work even harder to keep your home at the desired temperature – contributing to higher heating bills.

Annual servicing

However often you carry out DIY checks, they're no replacement for an annual boiler service by a Gas Safe registered engineer.

Get a free quote for your next Warmhaus boiler service from a Gas Safe engineers by using our simple online form.

Head back to the main Warmhaus page.

Rob Wells

About the author

Rob Wells

Rob is another of our resident home heating experts. He manages our external partnerships, making sure you get the most up to date information.

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