How Much Does It Cost for a New Oil Boiler?
20/11/2025
If you rely on an oil-fired heating system, you’ll know how important it is to have a reliable, efficient boiler. A common questions we’re asked is: “How much does a new oil boiler cost?”
The truth is that no two homes are the same, and because of this, there’s no one-size-fits-all price. Here’s why.
Every Home Is Different
Oil-heated homes vary hugely, especially in rural locations. Older properties, barn conversions, cottages and modern builds all have different heating demands — which means the correct boiler specification can vary a great deal.
The factors that influence the cost include:
- The size and layout of your home
Larger homes or homes with multiple bathrooms may require a higher-output boiler or a different system setup.
- Your existing heating system
Some customers simply need a like-for-like boiler swap. Others may require updated oil lines, flues, cylinders, controls or additional safety components in order to meet current OFTEC regulations.
- The type of boiler needed
Whether your property is best suited to a conventional oil boiler, system boiler or an increasingly popular oil combi boiler depends entirely on your property and usage needs.
- The condition and positioning of your current boiler
Access, flue positions, oil tank location and existing infrastructure all impact installation requirements.
Why We Don’t Give Fixed Prices Online
Online price lists often lead homeowners in the wrong direction. A boiler that’s too small won’t heat the house effectively. One that’s too big will waste energy and increase running costs.
At Total Energy Services, we’re OFTEC-registered specialists, and we believe your heating system should be designed around your home, not the other way around.
This is why we never guess — we assess.
The Importance of a Home Survey
To ensure the right boiler is safely and correctly specified, we always carry out a free, no-obligation home survey.
During the survey, one of our qualified engineers will:
- Assess your current boiler and system
- Measure your property’s heat requirements
- Check flues, oil lines, tanks and safety components
- Discuss how you use your heating and hot water
- Recommend the most efficient and suitable boiler for your home
- Provide a clear, personalised quotation
This ensures you receive the correct boiler, installed safely and compliant with OFTEC standards — and gives you the peace of mind that the system will perform reliably for years to come.
Why Choose Total Energy Services?
We are a local, family-run company based in Blandford, covering Dorset, Wiltshire, Hampshire and Somerset. Our engineers are:
- OFTEC registered
- Fully insured and DBS checked
- Experienced in all types of oil heating systems
- Accredited installers for leading manufacturers, including Grant and Worcester Bosch
We’re also Which? Trusted Traders, giving customers confidence in the quality of our work and service.
Book Your Free Oil Boiler Survey
If you’re considering replacing your oil boiler, the first step is a friendly, no-pressure home survey. No estimates, no guesswork — just clear, accurate advice tailored to your home.
📞 Call us today on 01258 472132 to arrange your free survey
🌐 Or send us a message via the enquiry form
