Condensing Boilers

Boilers that are over ten years old waste a lot of valuable energy, in terms of cost and environmental impact, in fact many older boilers convert as little as 60% of the fuel they use into heat.

Utilising the latest that technology has to offer, we supply and fit modern Worcester-Bosch condensing boilers to improve boiler efficiency to over 90% which could save you up to 30% on your heating bills. Condensing boilers capture energy in the boiler that would normally be exhausted to outside through the flue system, and use this energy to heat the water in the heating system. Condensing boiler come in many variations and we would be happy help you decide which one will best suit you, please contact us for more information or visit the Worcester Bosch website.

Central Heating Services

If you have a temperamental heating system, have hot water in the header tank, if it makes noises, you have cold radiators, or need to continually bleed them then our experts can help.

It doesn't necessarily mean a whole new system is required, there are many reasons for any central heating system to degrade and we will advise on the best way to get your heating back to its maximum potential quickly, for a no obligation quotation please contact us.

ATAG Boilers


Buying a new boiler is a considerable investment and you need to be sure that it's going to keep you warm for years to come. That's why every ATAG boiler comes with a 10 year warranty on all parts and labour.

Engineered to last

From their advanced facilities in Lichtenvoorde, the Netherlands, ATAG manufactures boilers that are trusted throughout the world. ATAG has been manufacturing boilers for almost 70 years. In 2013, ATAG launched its revolutionary iCon heat exchanger, the "beating heart" inside all of its our boilers. Made with high grade stainless steel, not only does it outperform everything else on the market, it also carries a lifetime replacement guarantee.

Award-winning boiler range

Over the years ATAG has worked continually to improve its boilers and has won numerous global awards, including being voted best boiler for 8 consecutive years by consumers in the Netherlands. In fact, it's this commitment that's led ATAG to being rated number one boiler manufacturer on independent review site Trustpilot, voted for by UK consumers.

Reducing your heating bills

For homeowners looking for even greater savings, ATAG's boiler range is the most energy efficient in Europe and can help cut your annual gas bills by up to £320 (Energy Saving Trust, April 2017).

Keeping your home safe

To ensure the highest safety standards in UK homes, ATAG only supplies its boilers to carefully selected and legally qualified Gas Safe registered installers. We are proud to be an ATAG Selected Partners.
Investing in a new ATAG boiler is a wise choice that will benefit you for many years to come. For more information, click here: ATAG website.


Our experienced and helpful staff will always be happy to assist you.

The Worcester Wave like many heating programmers on the market that can control your boiler from your smart phone.

An additional feature on the Worcester Wave is weather compensation and load control. This takes data from a local weather station near to you to increase the efficiency of the boiler's operation.

What is Weather Compensation?

Weather compensation traditionally involves a temperature sensor on the outside of a property linked to the internal programmer/thermostat. The sensor is able to forewarn the boiler of a change in outside temperature in order for the boiler to reduce or increase it's output before the internal temperature changes. This leads to less 'cycling' (the boiler coming on and off) and more efficient periods of operation.

How does the Wave work?

The Worcester Wave uses data from the local weather station to inform your heating system of a change in temperature. This is equally accurate and leads to a more straightforward installation with fewer parts to go wrong.

We are Gas Safe registered

K Stephenson takes gas safety seriously. All of our engineers are on the Gas Safe Register and will have their official identity card when you ask to see it.

Gas Safe Register is the official gas safety organisation in Great Britain.

It replaced CORGI on 1st April 2009. Gas Safe Register is responsible for the registration and regulation of gas engineers. Membership is mandatory for any company or engineer working with gas appliances.

If you would like to find out more about Gas Safe Register you can call 0800 408 5500 or visit the Gas Safe Register website.