Find a Heating Engineer you can trust in Caernarfon.

Choose from 43 Heating Engineers, all rated by people like you.

Over 47 reviews & an average rating of 4.5/5 stars, you'll find the right pro

Choose and shortlist

Use the shortlist button to select up to 4 tradespeople, enter your project details and press send

or

Keen to get on with the job?

Get up to 4 quotes from local Heating Engineers near you

View Shortlist

GLR Energy

0 review(s)
Offers services in CAERNARFON
GLR Energy provides expert services in gas, air conditioning, air source heat pumps, and LPG systems. Trusted for quality ...
Over 10 Reviews

Boxt

17 review(s)
Offers services in CAERNARFON
BOXT are the UK’s no.1 ranked gas installation company as voted for by our TrustPilot customers Buy a new Worcester Bos...

DJB Plumbing And Heating

6 review(s)
Offers services in CAERNARFON
DJB Group understand that buying a new boiler can be an expensive investment, which is why we strive to provide our custom...

Russell Gas Services

0 review(s)
Offers services in CAERNARFON
We are a local, gas, heating, oil and plumbing service. Gas Safe Registered. All our engineers are fully qualified and hol...

Applegarth Engineering

1 review(s)
Offers services in CAERNARFON
Applegarth Engineering is a NIC EIC approved electrical contractor, formed in 2006 to provide Electrical contracting servi...

Recent Heating Engineer Enquiries

09 Jan

Heating | Oil | Boiler Replacement

Caernarfon - LL54

Enquiry from: Amanda N

Start Date: Immediate

A new oil boiler and tank

Post a similar request >

12 Dec

Gas | Appliances / work

Caernarfon - LL55

Enquiry from: Qi H

Start Date: Immediate

Hi, I need gas certificate for my property.

Post a similar request >

16 Feb

Heating | Gas | Boiler Repair / Service

Caernarfon - LL54

Enquiry from: Sandra H

Start Date: Immediate

Our Vaillant gas boiler needs a service

Post a similar request >

22 Nov

Heating | Gas | Boiler Repair / Service

Caernarfon - LL55

Enquiry from: Laura P

Start Date: Immediate

hi, we would need following works for be done. please advise if you would able to any/all of these and roughly how much would it cost: * gas boiler service * extending sink/washing machine plumbing to...

Post a similar request >

24 Sep

Heating | Oil | Boiler Replacement

Caernarfon - LL54

Enquiry from: Adrian K

Start Date: Immediate

Customer made an enquiry for Oil Boiler Replacement via one of our websites. Looking at various options they would like to discuss directly Confirmed interest Please call to discuss and arrange appoi...

Post a similar request >

06 Mar

Heating | Gas | Boiler Repair / Service

Caernarfon - LL55

Enquiry from: Gary P

Start Date: Immediate

L2 code error on bolier..

Post a similar request >

26 Feb

Heating | Gas | Boiler Replacement

Caernarfon - LL55

Enquiry from: Josh R

Start Date: Immediate

customer is looking for a new gas boiler. confirmed interest unsure of the right boiler for their home so needs to discuss options. please call to arrange an appointment

Post a similar request >

01 Jan

Heating | Gas | Boiler Replacement

Caernarfon - LL55

Enquiry from: Heather O

Start Date: Immediate

new gas boiler are you the property owner: owner of the property is this for a residential or commerial building: domestic type of current boiler: gas what boiler type are you looking for: gas do you ...

Post a similar request >

18 Dec

Heating | Gas | Boiler Replacement

Caernarfon - LL55

Enquiry from: Leon H

Start Date: Immediate

Replace old boiler for new

Post a similar request >

14 Dec

Heating | LPG | Boiler

Caernarfon - LL55

Enquiry from: Leon H

Start Date: Immediate

new boiler are you the property owner: owner of the property is this for a residential or commerial building: domestic type of current boiler: lpg what boiler type are you looking for: lpg what level ...

Post a similar request >

11 Dec

Heating | Oil | Boiler Replacement

Caernarfon - LL55

Enquiry from: Myfanwy H

Start Date: Immediate

customer made an enquiry for oil boiler replacement via one of our websites. looking at various options they would like to discuss directly confirmed interest please call to discuss and arrange appoi...

Post a similar request >

23 Aug

Heating | Gas | Boiler Replacement

Caernarfon - LL54

Enquiry from: Owen J

Start Date: Immediate

Customer in the Caernarfon area made an enquiry online for a new boiler and is waiting for a call. Confirmed interest. Please contact to arrange an appointment to discuss options for their home.

Post a similar request >

19 Aug

Heating | Smart Thermostats

Caernarfon - LL55

Enquiry from: Tracey S

Start Date: Immediate

Install hive thermostat.

Post a similar request >

24 Mar

Heating | Oil | Boiler Replacement

Caernarfon - LL55

Enquiry from: CARYS O

Start Date: Immediate

install new boilers at a community centre is this for a residential or commerial building: commercial type of current boiler: oil what boiler type are you looking for: oil what level of service do you...

Post a similar request >

19 Feb

Heating | Gas | Boiler Replacement

Caernarfon - LL54

Enquiry from: Sabrina G

Start Date: Immediate

new gas boiler

Post a similar request >

18 Feb

Heating | Oil | Boiler Replacement

Caernarfon - LL54

Enquiry from: Keith W

Start Date: Immediate

new oil tank andtiger loop customer has confirmed they are looking to get a quote to have their oil boiler replaced are you the property owner: owner of the property is this for a residential or comm...

Post a similar request >

15 Feb

Heating | Oil | Boiler Replacement

Caernarfon - LL54

Enquiry from: Jim C

Start Date: Immediate

call anytime. extent of work: new boiler type of building: detached fuel: oil number of radiators: 0 quote requested on boiler replacement are you the property owner: owner of the property is t...

Post a similar request >

10 Feb

Heating | Gas | Boiler Replacement

Caernarfon - LL55

Enquiry from: Dilwyn O

Start Date: Immediate

removing existing conventional boiler located in kitchen and replacing with a combi boiler relocated in airing cupboard in bathroom and have been told that pipes need upgrading from 15mm to the 22mm n...

Post a similar request >

01 Jan

Heating | Oil | Boiler Replacement

Caernarfon - LL55

Enquiry from: Iwan J

Start Date: Immediate

Customer made an enquiry for Oil Boiler Replacement via one of our websites. Looking at various options they would like to discuss directly Confirmed interest, SMS at 12:22, email at 12:22 Please cal...

Post a similar request >

16 Dec

Heating | Gas | Boiler Replacement

Caernarfon - LL55

Enquiry from: Dawn T

Start Date: Immediate

Replacement boiler currenlty tank gas

Post a similar request >

How much do Heating Engineer services cost?

How much do Heating Engineers in Caernarfon charge?
Costs for Heating Engineers around Caernarfon can be very different relying on the type of work that you want to have actually carried out in your house. It's the question we get asked a great deal "how much do Heating Engineers in Caernarfon cost?". It's always great to have an idea of how much a Heating Engineer will likely cost for their work. Rates will likely rise and fall based on the materials and also the tradesman selected. The table shows the kinds of task that Heating Engineers normally do and the average cost series of these jobs. Some jobs take longer to finish than others so prices do vary by task.

Jobs that Heating Engineers in Caernarfon can do:

View our Heating Engineer cost guide View our Heating Engineer advice

The average price
of a Heating Engineer in Caernarfon is:

£2,750

Heating Engineer job Heating Engineer cost in 2026
Combi boiler in Caernarfon £1,788-£4,688
Lpg boilers in Caernarfon £2,320-£3,480
Biomass boilers in Caernarfon £7,500-£11,500
New Oil boiler in Caernarfon £2,250-£3,450
Boiler repair and service in Caernarfon £113-£173
Electric heaters in Caernarfon £1,500-£2,300
Eco boiler (hhrco) in Caernarfon £1,788-£4,688
Boiler finance in Caernarfon £1,788-£4,688
Heating control system in Caernarfon £225-£345
Micro chp boiler in Caernarfon £3,750-£5,750
Oil boiler repairs & servicing in Caernarfon £83-£127
Gas works in Caernarfon £60-£92
Boiler cover in Caernarfon £5-£25
Commercial Gas Boiler in Caernarfon £2,850-£8,250

Related Heating Engineer searches in Caernarfon

Heating Engineer FAQs

do i need a new commercial boiler?

Ad hoc visits from your engineer to fix small issues with your heating system may actually seem cheaper and a lot more affordable, however when a boiler is ripe enough for a change these small issues are always never ending. Over some period of time, these small issues will inevitably get worse and the idea of “mend and make do will be an absolutely false economy. The best course of action in this sort of event is to find a replacement boiler to install as soon as possible. In this article, we’re going to give you some hints that’ll show you when your boiler needs to be replaced. Now let’s take a look!

✓ Insufficient hot water. Here, you’ll have to check the size of your hot water cylinder. It’s crucial to make sure that your boiler is rightly sized to power your heating as well as hot water circuit in line with your demands. You should always seek the advice of a heating expert who can recommend whether to fix or replace the boiler.

✓ Strange noises. It’s normal for components of the boiler to become worn or damaged over time. Replacing the particular component that’s causing the knocking or rattling may seem cost effective at first but more often than not, the noises usually signal a bigger issue which is likely to build up over time. Hence, it’ll be a lot more logical to replace the boiler itself.

✓ Regular repair of your boiler. It’s essential to have your heating system serviced by a Gas Safe engineer on an annual basis. However, when you have to call them more often than once a year for your yearly maintenance, it may be a wise decision to consider getting a replacement.

✓ Other events whereby you may need a new boiler includes when you can’t get the right temperature in your room, when the radiators don’t heat up as they should, when your boiler leaks and if your boiler still has a pilot light.

how much oil does a boiler use?

How Much Oil Does A Boiler Use?

Are you also interested in knowing the quantity of oil that a boiler consumes to heat up and keep a house warm? Well, you’ll find the answer here. There are so many influencing factors that determines the quantity of oil that’ll be used by a boiler. These factors include the number of hours they’re subjected to use on a daily basis, the boiler’s size as well as how efficient it is. Another factor is how you use your boiler, whether it’s only to provide heating or to provide both heating and hot water will as influence the quantity of oil your boiler uses. As a result, it’s almost impossible to provide an accurate estimate of the amount of oil that an appliance would require to keep running effectively.

In general, to provide a rough estimate, a mid sized oil boiler appliance could make use of up to 3.5 litres of oil per hour when full, but if it’s a large appliance, then it can burn up to 4 litres of oil per hour. However, it should be noted that this is only when the boiler is operating flat out. In the event whereby the water inside the heating system is already hot and the boiler is only working to maintain the level of warmth, much less quantity of oil will be used. And as expected, there will also be times in which your boiler will not be on, and therefore no oil or fuel will b used.

Your home’s size as well as how properly insulated it is can also be a significant influencing factor here. As you would have guess a big home and/or poorly insulated will use up more oil because it’ll be harder to heat up or keep warm. Overall, for some households, 1000 litres of oil will be sufficient to get them through the year, whereas the same quantity may not be enough to get other households through just the winter months.

What size boiler do I need?

The size of boiler you need will depend on the size of your home, how many radiators and bathrooms you have and how many people live there. The boiler size refers to its output, which is measured in kilowatts (kW), rather than the actual dimensions. Speak to your boiler engineer about which boiler is suitable for you, as if you have more than one bathroom or a lot of people in your home a combi boiler might not suit you. Other boiler types such as system boilers or conventional boilers may be better suited to larger homes because they have bigger outputs.

what is a condensing boiler?

Condensing boilers are the in-thing when it comes to modern heating systems in UK homes and across the globe for a good reason. This is primarily due to the fact that condensing boilers happens to be highly efficient as it enables the fuel you’re burning to heat up your home go a lot further. Having a new high efficiency condensing boiler rather than an old G-rated non condensing boiler will not only enhance your heating controls, but also save you a lot of money annually. In this article, we’re going to take you through the basics of a condensing boiler. Let’s take a closer look!

If you’re interested in getting a greener and more efficient boiler, you simply can’t afford to look beyond a high efficiency condensing boiler. This is purely due to the fact that these condensing boilers happens to make a better use of the heat they’re able to produce from burning fuels like oil or gas ( in other words, they require less heat from the burner, which makes them a lot more efficient).

So how does a condensing boiler work? Unlike a non-condensing heat-nly boiler, some heat will be wasted in form of hot gases which are released from the flue. Meanwhile a condensing boiler captures some of the heat from these gases and puts them to use for heating up water that’s coming back from your central heating system. As a result, it requires just a minimal heat from the burner which make the boiler more efficient.

You should take note that all new modern boilers are condensing boilers. Therefore if you’re planning to replace an old boiler with a new one, you’ll definitely be buying a new condensing boiler and benefit from all the efficiency and savings that comes with it.

how much is a boiler service?

How Much Is A Boiler Service?

A broken boiler can be a huge pain and even more so if it occurs during the winter months. A cold house and cold shower is not a situation to be handled with levity especially when there are older people or more vulnerable members in the house. To ensure your boiler keeps functioning the way it should for a lengthy period of time, it’s crucial to ensure that you have your boiler serviced on a yearly basis. But while the summer or warmer months happen to be the most cost effective time to have the boiler servicing done, doing it during the depths of winter can go a long way to ensure that you and your loved ones get through the cold without any unwanted occurrence or boiler issues.

Generally, to have your boiler serviced will cost anything within the range of £80 to about £120, but at times, this can even be more depending on a plethora of factors. The servicing cost will be based on the particular company you choose, the type of boiler you possess, as well as your location in the UK. For instance, if you happen to live in London where demands are higher than the other regions, then you’ll most likely have to pay more money to have your boiler serviced than other homeowners facing similar issues but staying in the other lower demand regions.

Asides from hiring a professional to service your boiler on an annual basis, you should also try to help maintain its efficiency and health in between those services. This will not be a substitute to the regular servicing or even make the servicing a lot simpler, but will surely help keep it at a maximum efficiency while also keeping the cost of your heating bills down.

Can I stay at home while my gas boiler is being replaced?

When your boiler is being replaced you won’t have hot water or central heating. If you don’t mind this you can stay in your home, and use portable electric heaters if needed. Most installers undertake a power flush before installing a new boiler now and this can cause muck and debris from the pipework, so you may wish to get out of the way while this is happening!

How does the A-G gas boiler rating system work?

The A-G scale refers to the energy efficiency of your boiler. G-rated boilers are the least efficient, and give you less heat and hot water for your money. Installing an A-rated boiler will reduce your energy bills and carbon emissions. Don't compromise on cheaper, lower rated boilers, you will save yourself more money longer term with an A-rated model.

how does a gas boiler work?

A boiler is simply the most important part of a central heating system as it generates the heat that warms up the home or property. Basically, the appliance or small furnace makes use of gas, LPG or oil in order to fuel its operation. However in the UK, most boilers are usually fuelled by natural gas which is supplied automatically from the national gas grid. And depending on how it operates, there are various types of boilers.

Typically, a gas central heating boiler will have multiple pipes entering from underneath. While one pipe supplies the boiler with gas from the mains gas supply, another pipe allows cold water to enter the boiler to be heated, the last pipe then enables hot water to exit the boiler so it can be distributed around the home.

✓ There are fuel jets and heat exchangers inside the boiler. When the heating is turned on, a valve is opened to allow the mains supply gas to enter a sealed combustion chamber in the boiler. There are multiple little valves which permit the entry of the gas before being ignited by an electric ignition switch. These jets heat a metal component in the boiler known as a heat exchanger which works to transfer the heat to the cold water pipe and heat up the water.

✓ Once the water has been heated to the target temperature, it’s then pumped through a circuit of pipe which runs around your home by an electric pump.

✓ The heated water enter each radiator, is then transmitted via a closed loop and radiates heat into each room.

✓ Once done travelling through all radiators, the water then returns to the boiler at which it must have been cooled. Therefore, the boiler will have to reheat following the same process before circulating. The water can only be drained by a professional Gas Safe engineer

Heating Engineer help and advice

How it works

Tell us about your Heating Engineer project

Answer a few quick questions to help us match you with the right Heating Engineer

Get up to 4 free quotes

Receive no-obligation quotes from 4 Heating Engineers working in Caernarfon.

Pick the right pro for you

Compare prices, customer reviews and services, and hire the right Heating Engineer.

Are you a Heating Engineer in Caernarfon?

View our open Heating Engineer jobs near you

Join today
View Shortlist