Gas & Oil Heating Services You Can Rely On

Many of us still rely on traditional heating systems that use gas and oil to heat our homes. Without correct installation and regular maintenance and servicing, these systems can become inefficient and potentially dangerous.

At AJS Energy, our Gas Safe and OFTEC-registered engineers have the experience and skills to keep your gas or oil heating system running to optimum efficiency, keeping your home warm and cosy.

Whether your current gas or oil heating system just needs a repair or you need a brand-new boiler installed, you can trust us to get the job done.

ACCREDITATIONS YOU CAN TRUST

With something as important as your gas or oil heating system, you need to know the engineers carrying out the work know what they're doing.

Our accreditations with several respected trade organisations give you the confidence to know our engineers are qualified to carry out any installation and maintenance services you require.

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Gas Safe Register

The Gas Safe Register is the only official gas registration body in the UK for gas businesses and engineers.

To be a Gas Safe-registered engineer, individuals must hold a valid qualification through a recognised route of training and assessment.

All our engineers are Gas Safe-registered, so you can trust them to carry our any work on your gas heating system to the highest standard.

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OFTEC

OFTEC is a trade association for liquid fuel heating equipment manufacturers and training providers.  They also have a 'competent persons scheme' for those who work with oil heating equipment.

By choosing to work with one of our OFTEC-registred engineers, you can trust any work carried out on your oil heating systems is of the highest quality.

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Peace Of Mind With Extended Warranties

A 12-month workmanship guarantee covers all our services, so you can trust that any work carried out is completed to the highest possible standard, whether it’s a quick repair or a full installation of a new system.

In addition, we’re able to offer extended warranties on a range of gas and oil boilers, thanks to our partnerships with market-leading manufacturers Vaillant and Grant.

All the products we install are covered by their manufacturer’s warranty, giving you additional peace of mind.

DON'T JUST TAKE OUR WORD FOR IT...

Here are some great customer testimonials

Mr March
Mr March
20th December 2025

I would just like to add that the lads that were at my premises were a credit to your company.  Polite, tidy in their work and they worked hard. Please pass this on to them.

Mr Trimnell
Mr Trimnell
18th December 2025

Mark serviced my boiler efficiently and professionally. He was punctual, knowledgeable, and explained everything clearly. I would happily recommend his services.

Mrs Humphreys
Mrs Humphreys
25th October 2025

Dan fitted a new radiator in my bathroom he went over and above to source the right size for me. Absolutely a good tradesman and done the job perfectly. Highly recommend.

Mr Thomas
Mr Thomas
10th October 2025

I would just like to say how helpful, professional and courteous your plumber was today whilst fitting a whole house water and drinking filter system. He was polite and respectful of our property and took his time to ensure this new water filter system was installed to the manufacturer guidelines. I’m 68 years old and over my life have encountered many different trades individuals. Your Dan is an exception, he is most diligent, meticulous and passionate with his work. I am so pleased I waited for you rather than just go for the next available plumber. Your Dan is without doubt a great asset to AJS.

Mrs Salmon
Mrs Salmon
15th April 2025

As always very pleased with work carried out. Very pleasant and efficient young engineer.

Mrs Hamblin
Mrs Hamblin
7th April 2025

Thank you again for your excellent service!

Mr Grimes
Mr Grimes
20th March 2025

I just wanted to let you know how pleased we are with everything. The lads are a pleasure to have in our home.  All of them are pleasant, courteous and helpful. They work hard, clearly know their jobs and respect our home, putting down protective coverings and clearing up after them. We are also very happy with the work.  The boiler is very quiet and will require very little intervention from me. The radiators look great and my son is particularly pleased with the anthracite ones in his private domain.

Mr Barnes
Mr Barnes
6th March 2025

Carole and Mark, thank you for your excellent prompt service in repairing our boiler this week at a very reasonable cost. I can't recommend AJS highly enough!

Mr Trimnell
Mr Trimnell
10th December 2024

Excellent service from Mark, as always.

Mrs Shepard
Mrs Shepard
5th November 2024

Just to say thank you for the great service you provide and at a great price. Nothing is too much trouble. Thank you once again. 

Ms Smead
Ms Smead
31st October 2024

I've used AJS for the last 3 years and highly recommend the company.  They provide a great service at a very reasonable price. Thank you Mark and Carole, it's a relief to find a plumber I can trust. 

Mrs Van Holby
Mrs Van Holby
10th October 2024

AJS installed and have serviced my boiler for more than five years. As a company they are professional, reliable and competent. As individual members of staff they are polite, friendly and helpful. I would not go elsewhere.

Mrs Tilbury
Mrs Tilbury
2nd October 2024

My new Vaillant boiler was installed this week by AJS Gas and Heating Services Ltd and I found it to be an extremely easy process. The workmen who came were very pleasant and polite and carried out the work seamlessly from beginning to end with very little mess. I have a lovely new boiler which works much more efficiently than my old one did.

John Barrett
John Barrett
4th June 2024

Always great service and fair and a honest price. They always call if there is a problem with appointments. Always leave a good clean job.

AJS Energy: Your go-to gas registered engineer

With over 40 years of experience in heating services, our gas-registered engineers have the skill and knowledge to identify any faults with your boiler and fix them quickly.

We can also help with landlord safety checks and certification, not only making sure you're complying with landlord regulations but also ensuring the safety of your tenants.

If you're looking for expert advice about your gas or oil heating system, contact us today, and our knowledgable team will be more than happy to assist you.

CONTACT US

Call: 01206 230 435

Send your enquiry