Save up to 35% on your energy bills with a brand new energy efficient combi boiler, installed by experienced Gas Safe engineers
Read about how we are continuing to support our customers throughout the current period here.
vaillant combi boiler installed

South Wales Boiler Installations

With over 50 years’ experience, Peter O’Neill Services have a long and established reputation for new boiler installations throughout Torfaen, Newport, Cardiff, Monmoutshire, Bristol and beyond. View the full list of areas we cover here.

Family run with nearly 60 years experience
Fully Gas Safe & OFTEC registered engineers
Post installation maintenance & service plans
Up to 7 year warranty included

Over 5,000 customers across South Wales and The West trust us to look after their boiler, central heating and gas appliances.


Accredited, Approved and Experienced Installers

We use a local workforce and all of our engineers are fully Gas Safe, Hetas and OFTEC registered and qualified, giving you complete peace of mind that you are in safe hands. Our workforce are experienced in installing all types of gas,oil and solid fuel boilers and we only use the highest quality and most reliable boiler brands, including Vaillant, Worcester, Baxi and more.

New Boiler Types

Having installed tens of thousands of boilers in domestic and commercial properties, we really are a company you can rely on to provide you with the best professional advice and customer service when it comes to choosing your new central heating system.
combi boiler kitchen installation

Also known as a combination boiler, a combi is the most cost-effective residential boiler. Both compact and highly efficient (up to 90%), the combi is an ideal choice for most homes and consists of a single unit that generates all the heating and hot water for your household.

system boiler installed

For homes with multiple bathrooms, a system boiler could be a more appropriate option. It has all the same components as a combi boiler but without the hot water production. They work alongside a hot water storage cylinder and are up to 90% efficient.

heat only boiler in kitchen

An open vented also known as a heat only boiler only provides the heating and works alongside a hot water storage cylinder and a feed and expansion tank, usually found in the loft. Heat only boiler are also up to 90% efficient.

oil boiler in kitchen

For those who do not has access to a mains gas line, an oil boiler is a popular option. Fuelled by a supply of oil, usually stored in an external tank, the oil boiler generates heat and hot water for the property. Oil boilers are also highly efficient, with a rate over 90%

solid fuel boiler

Solid fuel boilers come in a range of sizes to suit any home and use a supply of wood, coal or smokeless fuel to heat up the water, circulate it to a hot water storage cylinder and pump it around the property to the radiators.

Unsure which boiler type you need?
Contact us for a free no obligation assessment and quote on
01633 627214 or

What are the benefits of having a new boiler?

Investing in a new boiler in your home can be expensive but provides a whole host of benefits that you may not be aware of.

Here are just a few of the benefits of installing a brand new modern boiler.

Reduce heating and energy bills by up to 35%.


Improved central heating system efficiency.


More accurate temperature control of your home.


Reduce your carbon footprint due to less energy used.


Up to a 7 year warranty as standard.


Modern boilers run a lot quieter than older systems.


Most new boilers are a lot smaller in size.


Increase the value and attractiveness of your home.

Looking to upgrade more than just your boiler?
We also specialise in full central heating system installations


Why choose
Peter O’Neill Services

Choosing a new boiler and central heating system is a big decision and represents a significant investment, that’s why we are here to help make the decision process as easy as possible for you. Who better to help you choose your new system than a company that install and service them day in day out.

Our professional and friendly staff will use their experience of thousands of installs when conducting an assessment and providing you with a quote for the most efficient and cost-effective boiler and central heating system for your property.
60 years experience icon
Nearly 60 years experience in boilers and central heating
qualified engineers icon
Fully qualified and
registered engineers
family run company icon
Family run and
local workforce
free quotes icon
Free no obligation assessments
and quotes
liability insurance icon
Public liability insurance
up to £5 million
boiler service and maintenance icon
Post installations service and maintenance plans

“The engineer was on time, very polite, clean and professional. I am happy to recommend your company after a super job on my new boiler”

Mr Ashdown, Cwmbran

“I would recommend them to anyone who needs a new boiler,very good”

Mr Whitcombe, Newport

“Thank you to the workmen who carried out the installation of a new combi boiler. All were efficient, polite and very professional, as well as cleaning up after they had finished”

Mr Justin, Cardiff

“I was particularly please with the installation of two radiators. Very efficient, hard working and minimal fuss and mess. Many thanks”

Mrs Laurie, Cardiff
Wales' Premier Fireplace Showroom
Come to Energy World and view over 50 live gas and electric fire, stove, burner and fireplace displays.

Get in touch

Need help with your boiler, central heating or fire? Call us now on 01633 627200 or fill out the form below and we will be in touch. If you require boiler servicing and maintenance, please call 01633 627205

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