Contact Us

Whatever your query, whatever your concern, we’re here to help in every way we can. Choose the relevant contact number or email below to get in touch with our friendly team.

Certas Energy Contact Details & Opening Hours

Domestic Heating Oil Contact Details

If you have a question or a query related to our home heating oil products and services, please speak to our domestic team.

Email: Click here to send us an email

Telephone: 0345 600 4040

Our domestic customer line opening hours:

Monday – Friday: 8.00am to 5.00pm

Saturday & Sunday – Closed

Click here to contact our Bereavement & Probate team.

Did you know that we also have plenty of complimentary heating oil advice available online for homeowners? Explore our helpful guides.

Whether you want more information about our home heating oil deliveries or boiler servicing, our knowledgeable team will be happy to help. If you’re unsure when to get in touch with us, take a look at the questions and answers below.

How do I request a heating oil quote?

You can request a quote from our friendly team over the phone on 0345 600 4040. We can also provide heating oil quotes online for your convenience.

Can I book a boiler service over the phone?

Yes! Call us on 0345 762 0620 and our team will be able to book a visit from one of our OFTEC registered engineers.

Where can I give feedback?

To let us know your thoughts and feedback on our services, please email our dedicated customer service team at or fill in the form at the bottom of the page.

Business Customer Contact Details

To ensure that we connect you to the right department, please select the category that applies to you:

Business Owners & Agriculture


Telephone: 0345 600 4040

Marine Industry


Telephone: 0345 601 1880

Retail and Forecourts


Telephone: 0345 601 8495/ 0345 456 6300

Fuel Cards


Telephone: 0345 608 8003



Telephone: 0345 609 9002 (England & Wales)

Telephone: 0345 609 9156 (Scotland)

National Accounts


Telephone: 0800 085 2314 (England & Wales)

Telephone: 0345 303 4430 (Scotland)

All of our business customer contact numbers are open as follows:

Monday – Friday: 8.00am to 5.00pm

Saturday & Sunday – Closed

We have also collated our expert advice into a range of guides online. Browse our helpful guides for commercial customers.

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Careers Contact

If you have questions about careers and recruitment at Certas, email us at the address below.


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For any media enquiries, please reach out to our specific PR team.


Telephone: 01925 858500

Share your feedback with us

For any feedback, email us on or simply fill in the form below and we’ll get back to you as soon as we can.

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