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Oil Boiler Replacement Cost

By Kane

Last updated 22nd October 2024 - Reading time: 7 mins

At a Glance

The average oil boiler replacement cost is around £2,700 in the UK.
Fitting a new oil boiler will typically take a professional between 1 – 2 days to complete.

In this oil boiler cost guide, you'll find out:

What the cost of a new oil boiler is in 2024, as well as what oil boiler installation costs in the UK.
How long it takes for a heating engineer to complete this job, what's involved in installing a new oil boiler, and things to consider.
How to find and hire an OFTEC-registered heating engineer near you.

Looking into how much an oil boiler installation costs in the UK?

In 2024, the average cost of an oil boiler is between £1,180 – £3,500. However, oil boiler costs are impacted by factors such as the size of the boiler, how complex your central heating system is to work, and your location in the UK.

In this oil boiler cost guide, we cover everything that you need to know. This includes typical oil boiler prices in the UK, how much a heating engineer will charge for installing an oil boiler, and much more!

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oil boiler being installed by a heating engineer

Average Oil Boiler Replacement Cost:

Depending on the complexity of the job, it usually takes 1 – 2 days to complete

£2,700

How Much Is a New Oil Boiler?
- Oil Boiler Prices
Things to Consider When Installing an Oil Boiler
Can You Install an Oil Boiler Yourself?
Sources

How Much Is a New Oil Boiler?

Installing an oil boiler can cost anywhere between £1,180 – £3,500, depending on the type and size of the boiler and the engineer’s daily rate. More and more people are having oil boilers fitted in their homes as there are many benefits that come with oil boilers.

Oil boilers will not only make your bills cheaper due to improved efficiency but installing an oil boiler will also mean your heating will be more effective. Oil boilers are better for the environment than other boilers as they produce lower carbon emissions, making an impact on the environment and helps to make your home more attractive when it comes to selling it.

To install an oil boiler, you will have to take into consideration the cost of the oil boiler, the heating engineers daily rate, and then the running cost for the boiler. An oil boiler will work the same way as other fuel type boilers, when the oil is set alight the cold water will be warmed up from your mains pipe.

You will need to hire a professional tradesperson to fit your oil boiler. A professional will have many years of experience in fitting oil boilers and will save you a lot of stress along the way. This article will highlight the cost of installing an oil boiler as well as some things to consider.

When you simply complete our quick and easy form with the information of your job, we will put you in touch with up to 3 skilled heating engineers to help with installing your oil boiler.

Can an oil boiler be used off grid?

"The oil boiler will need a power supply and you will need the oil delivered into a tank on your property."

B Fisher Plumbing & Heating

Oil Boiler Prices

Job Description	Duration	Material Cost	Labour Cost
Installing Firebird Enviroblue Kitchen System Internal 26kW	1 – 2 days	£1,283	£100 – £250 per day
Grant VortexBlue Kitchen/Utility 36kW System	12 days	£1,952	£100 – £250 per day
Worcester Bosch Greenstar Heatslave II 25 Combi	1 – 2 days	£2,252	£100 – £250 per day

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Things to Consider When Installing an Oil Boiler

There are a few things to consider when installing an oil boiler.

The oil boiler works the same as other fueled boiler types, by pumping the hot water through radiators to heat up the room, but there are benefits of an oil boiler.

Oil boilers will not only reduce your energy bill, but will also help to reduce your carbon footprint too. You must consider that whilst your energy bills will be cheaper, it will cost you more to buy the oil boiler and install it compared to other boiler options.

How efficient is the average oil boiler?

"90% plus on today's boilers. But they need to get set up correctly to achieve this"

New Level Plumbing & Heating

Once you’ve decided on the type and size of the oil boiler you want, you will need to think about the best place to install it. Most boilers are fitted in a utility room or in the attic, as these are the safest options.

You will also have to remember that there is a risk of your oil boiler producing carbon monoxide, so it’s extremely important to buy a carbon monoxide alarm for your boiler, especially if the boiler is in or near someone’s bedroom.

You will need to hire a professional engineer to install your oil boiler as you are dealing with gas. A gas safe engineer needs to complete the installation and sign it off as safe

How often should an OFTEC technician service my oil boiler?

"You should have your oil boiler serviced annually. This should include a new nozzle and a new supply hose. Unless you fit a green coloured hose, which have a life expectancy of 2 years before being changed."

APH Plumbing and Heating Services

Can You Install an Oil Boiler Yourself?

You cannot install an oil boiler yourself unless you are a qualified, experienced and professional engineer.

If you’re replacing your old boiler, the engineer will have to come and asses the boiler and how to replace it as well as helping you decide what type of boiler is best for you before they can give you an accurate quote.

If you have need to keep oil in an oil tank in your garden, how can this be done safely?

"I'd say it should be kept in a non corrosive container such as a PVC drum. The container should be placed in a protective enclosure."

ZH&F Services Ltd

By hiring a professional to install your oil boiler you will not only avoid potential damage, you will save time and money.

The cost of purchase and installing an oil boiler will vary from between £1,180 – £3,500 depending on the type of oil boiler. The average price paid is around £2,700 as you will also need to factor in the engineer’s daily rate.

With installing an oil boiler, there are many risks and health and safety hazards that could occur if you were to attempt it yourself. We recommend getting up to 3 quotes from qualified engineers for the price of installing an oil boiler.

Are there any repairs on an oil boiler I can undertake DIY?

"The simple answer is no. Even though oil boiler repairs are not regulated like gas services are, you are still burning a fossil fuel and, therefore, if the correct air / fuel ratios are not achieved then excessive emissions may occur.

Whilst most boilers these days are room sealed to the atmosphere, part of the service / repair schedule is checking and identifying any defects within the case seals of the combustion area. If these are defective, then products of combustion can enter the room / or spurious air being drawn into the combustion chamber which could affect the combustion fuel / air mix.

Other than the reasons above, there are various electrical issues to attend to and be aware of. In any event, to ensure that the appliance is burning correctly and to the manufacturers' specifications, you need a flue gas analyser to prove the performance."

Heatwave Engineering