Gas Boiler Servicing In Cardiff & South Wales - £65.00 + vat

A gas boiler is the heart of any central heating system, annual boiler servicing is an important part of making sure it is running safely and efficiently. It is also a condition of a newly installed boiler, so you will need to make sure your boiler is serviced annually to make sure the warranty is valid. 


We recommend each boiler whether the boiler be one or ten years old, to be serviced annually to pick up on faults or minor repairs. When carrying out a service we ensure that all gas pressures are correct, there aren't any boiler defects, the combustion casing seals are intact and that the flue is correctly installed and is positioned in accordance with manufacturer's instructions. 


If your boiler is not checked annually you could put yourself and or your family at risk.

Boilers can be deadly appliances if not installed correctly or are not burner complete.



Reasons to use Thompson Services


  • Cardiff based company
  • We directly employ our own engineers
  • Fixed price servicing at just £65.00 + vat (Cardiff, Newport, Penarth, Barry, Radyr & Caerphilly)
  • If parts are needed following the service, a quotation will be submitted before work is carried out
  • Our engineers will phone/text ahead so you know they are on their way



How to book a service


Booking is easy, simply fill in the contact form below with all the relevent information, and a member of staff will be in touch to confirm the booking and arrange a day/time.


Or you can email us or phone the office using the below contact information


Office: 02922 218411 (Cardiff)




Thompson Services

Gas Boiler Service


£65.00 + vat

Price based on South Wales locations


Booking Availability


Engineers work 8am-5pm



Monday - Friday

(Exact time of inspection will be confirmed after booking)

Engineer availability

Available with 2 + days’ notice

(Depending on engineer availability.)



What's Carried Out On A Boiler Service



  • We'll inspect your boiler and controls to make sure they're working and functioning properly.
  • We'll check your boiler for corrosion and leaks.
  • We'll check the gas pressure, and gas rate the boiler.
  • We'll test the flue using a gas analyser, to make sure the boiler is running safely and efficiently. 
  • We'll pop the casing back on and check the seals.
  • We'll email you with a checklist of information about your boiler's service. (If further parts or cleaning is required, a price and information of this will be sent to you in a email)










£65.00 + vat


Boiler Service & Gas Safety Certificate


(price based on both being carried out at the same time)



£100.00 + vat


Digital Gas Boiler Service Report PDF Version sent via email.


We keep back-ups of all reports for 12 months and can re-send at any time free of charge.


Annual reminders sent each year.

(Annual legionella report reminders are sent 2-3 weeks before the renewal date, via email, text and a letter.)



Included within the price









Terms & Conditions


* The price of £65.00 + vat does not include a back boiler and fire service, please email us for a quotation if you have a back boiler in place

* The price of £65.00 + vat does not include any parts needed for any rectification works that may arise on a service

* If there is an issue with the heat exchanger that becomes apparent on the service, this would involve a seal kit which we would then quote on separately to the initial service

*All additional works/parts will be quoted on before anything is carried out

*If the boiler is found to be unsafe we will isolate the boiler issue a warning notice, advise on the necessary works required to rectify the issue. There will still be a charge for this




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Thompson Services Heating, Plumbing and Bathroom's 21 Miskin Street, Cathays, Cardiff, CF24 4AQ