We specialise in the following Keston products:

  • Keston Celcius 25 / 25P
  • Keston Qudos 28/S
  • Keston C40 / C55 / C90 / C11
  • Keston Duet Condensing Boiler
  • Keston Unvented Cylinders
  • Keston System 30
  • Keston Combination Boiler 30 / 35, which connects to the Keston twin-flue system, the boiler can be situated anywhere up to 27* metres from the flue outlet.
  • The Keston qSpa range, 8 models in the range (90, 120, 150, 180, 210, 250, 300 & 400 400)
  • Heat Range with outputs of 45kw / 55kw 
  • Keston K50 / K60 / K80 / K260/ K34

We at Proficient Gas provide you with a professional and courteous service, we aim to arrive on time and will call in advanced  for estimated time of arrival. Our quotations are open and we will charge for only the work we carry out, our engineers are honest and will treat your home with respect. We will provide customers will a full report once the diagnosis/fault has been found and assist you on how to fix the problem. All our work is guaranteed for twelve months and payment will be taken on completion with customer gratification.

All Keston Boilers are SEDBUK A-rated boilers which reduces your gas bill by 30%. All our Keston Boilers engineers are GAS-SAFE registered with 20 years experience within the heating industry.