Trusted Local Plumbers and Heating Engineers

Family-run business with over 30 years’ experience. In Swindon & surrounding areas.

We’re more than just plumbers—we’re a family-run business built on trust, expertise, and quality work. Serving Swindon and the surrounding areas since 1988, we’ve grown carefully to ensure our customers always receive the best service.

AHS team

Our Story

Over 30 Years of Quality and Care

Advanced Heating Services was founded in 1988 by Mark Dennis with a clear vision – to provide expert heating and plumbing services where quality and customer care always come first. Now run by his son, Matthew Dennis, we’ve deliberately grown at a steady pace to maintain the highest standards, and today, with a dedicated team of 11, we continue to offer professional yet personal service across Swindon and beyond.

Our Team

Our skilled engineers specialise in servicing, commissioning, and installing a wide range of gas and oil appliances for both domestic and commercial customers.

Based at our Kiln Lane premises in Swindon, we operate from a dedicated office space, allowing us to work efficiently and maintain strong client relationships.

Worcester accredited Installer
Bosch logo
Vaillant installer logo
Novuna Finance Available
Gas Safe Register logo

Always Here When You Need Us

We know that plumbing emergencies and heating issues don’t always happen during office hours. For existing customers, we have an out of hours service to for urgent water and gas leaks.

Hear from our customers

Couldn’t recommend AHS Plumbing and Heating any more highly. From start to finish, the service was exceptional. Scott, Nathan, Steve, and Ethan were professional, courteous, and clearly take great pride in their work. The quality of their workmanship was outstanding, and their pricing was more than fair. They truly went above and beyond to ensure everything was done to the highest standard. I only wish I had known about them sooner—I wouldn’t have delayed the job for as long as I did. A genuinely brilliant team. Thank you again!

Mim Mogul

My family have used AHS for all our boiler care, plumbing and installations for over 30 years – I would not go anywhere else! They are a fantastic family run business, really helpful, professional, reliable, conscientious and friendly – could not be bettered. A great team of very knowledgeable engineers who take time to explain everything. I would thoroughly recommend them.

Leonora Smith

AHS have been servicing my boiler for many years now and they provide an amazing service. Their engineers and customer service is 1st class and they will always make sure everything is in order from start to finish.

I’ve had 2 replacement boilers from them over the years at 2 houses and with regular servicing from them I’ve had no problems at all.

I’ve also used them for landlord gas safety and annual inspections with the same professional quality service.

Lee Smitten

AHS have serviced and maintained my boilers for over 30 years. Their engineers are always prompt, polite and informative, explaining what needs attention, if anything. If I had any breakdowns during the winter months they were quick in their response and have always fixed the problem first time

Office staff are accommodating and always return my calls if busy

Prices are extremely competitive and fair in my opinion for the quality of service

Highly recommended *****

Debbie Southern

I’ve been using AHS for a few years now and they’re such a friendly and professional team. Booking a boiler service is always quick and easy, and when my boiler needed an urgent repair, they came out straight away and got it sorted that day. They’re reliable and so knowledgeable, I would highly recommend them to anyone!

Sophie Mister

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