D.E.S. Gas Safe Solutions

Boiler Servicing

Annual boiler servicing by Gas Safe‑registered engineers using manufacturer-approved test kit and genuine parts to keep your home's heating reliable and efficient.

What happens at your annual boiler service

Our gas boiler service in Sheffield follows the manufacturer's guidance for your boiler, with calibrated test kit and genuine parts from Worcester Bosch, Vaillant and Ideal where anything needs replacing. We're heating engineers based in Sheffield, serving Rotherham, Barnsley and the surrounding area.

We recommend a service every 12 months for every gas boiler. Most manufacturers ask for a yearly service to keep the warranty valid. Every service includes:

  • A visual check of the boiler, its seals and the pipework around it
  • A check of the system pressure and a test of the safety valve
  • A flue check and, where needed, a combustion test with a calibrated flue gas analyser, to confirm the boiler is burning gas safely
  • Cleaning the burner and heat exchanger where the manufacturer calls for it
  • A check of the condensate pipe, the small plastic pipe that carries water away from a condensing boiler, so it can't block or freeze
  • A test of the controls, thermostat and safety devices
  • New seals or gaskets where worn ones need replacing •
  • A written, itemised service report with the readings we took

If we find anything unsafe, we explain it there and then and make it safe before we leave. Any other work we'd recommend goes on your report with a clear price, so you can decide in your own time.

What happens at your annual boiler service

How It Works

01

Book a convenient appointment

Call or email to arrange a time. Same-week slots are available for local customers, and emergency callouts where required.

02

Comprehensive inspection & service

We run manufacturer-recommended tests, clean burners and heat exchangers, check controls and flues, and replace worn consumables where needed.

03

Report, advice & clear quote

You receive a detailed service report with performance readings, any safety notes and a transparent quote for recommended repairs or parts.

04

A reminder next year

We get in touch when your next service is due, so it never slips your mind and your warranty stays on track.

Why customers come back every year?

Accredited with the big boiler brands

We're Vaillant Advance, Worcester Bosch and Ideal Max accredited installers, so we know these boilers inside out and fit the makers' own parts.

Experienced, Gas Safe engineers

17 years' trade experience and Gas Safe registration mean safety-focused workmanship and reliable diagnostics across Sheffield housing stock.

On time, tidy and easy to reach

It's what our customers mention most in their reviews. We turn up when we say we will, let you know if we're held up, and leave everything clean.

How much does a boiler service cost? We'll tell you the price before we start, and it depends on a few things. A regular or system boiler, with a hot water cylinder and more parts around it, can take longer than a modern combi. An older boiler, or one that hasn't been serviced for a few years, may need more cleaning. Many customers have their gas fire or other gas appliances serviced on the same visit, which saves booking a second one. If you're a landlord, we can do your landlord gas safety certificate (link to /services/landlord-gas-safety-certificates-cp12) at the same time. If the service shows a part needs replacing, we price it first and only fit it once you've agreed.

Gas Safe registered, and you can check. By law, only a Gas Safe registered engineer can service a gas boiler. We're Gas Safe registered and fully insured. Before anyone works on your boiler, ask to see their Gas Safe ID card, and you can check any engineer on the Gas Safe Register website (link to https://www.gassaferegister.co.uk).

Where we service boilers. We're based in Ecclesfield and visit homes all over the city. Our areas we cover page (link to /service-areas) shows the neighbourhoods and towns we visit.

"Dan did an excellent job as always, servicing our boiler and changing a control panel for us. However the best bit for me is his system for contacting me annually when the service is due as otherwise I know I’d forget. He is always professional, arrives on time, clean worker, communication is excellent and he’s not even bothered by our loud and jumpy dog. I can highly recommend Dan, we’ve been using him without any issues for years now." Liza, Google

"Dan Senior of DES Gas Safe Solutions did an annual boiler service at our residence. He did a thorough job beyond my expectations. He is polite, friendly and explained without any hesitation questions put forward to him. His pricing was competitive and value for money. I would highly recommend him and certainly use him again." Arun, Google

Frequently Asked Questions

We recommend an annual service for every gas boiler. Yearly checks preserve efficiency, reduce the risk of breakdowns and help keep manufacturer warranties valid. Annual servicing also confirms safe combustion and flue performance.

A service reduces the chance of unexpected failures by identifying worn components, blockages and efficiency losses early. It cannot guarantee zero breakdowns, but routine servicing is the best way to catch issues before they cause a breakdown.

We service the full range of domestic gas boilers and are accredited installers for Worcester Bosch, Vaillant and Ideal, so we know their service procedures and parts well. If a specialist component or major repair is needed we’ll explain options and provide a transparent quote.

We service the full range of domestic gas boilers and are accredited installers for Worcester Bosch, Vaillant and Ideal, so we’re familiar with OEM procedures and parts. If a specialist component or major repair is needed we’ll explain options and provide a transparent quote.

Yes. Every service includes a clear, itemised service report showing the checks carried out, any readings, consumables replaced and recommended follow‑up work. This report is useful for warranty purposes and landlord records.

No. A service keeps your boiler working well by cleaning it and checking its parts. A gas safety check confirms every gas appliance in the home is safe to use, and landlords must have one done every 12 months. We can do both on the same visit.

Book your annual boiler service

Protect your heating and keep warranties valid — call 07581076239 or email info@gassafesolutions.co.uk to arrange a Sheffield appointment.
Arrange a Service