About Denner Heating

Trusted engineers with a personal approach.

Local Heating & Plumbing Experts You Can Rely On

Proudly serving Annan, Dumfries & Cumbria with honest, dependable boiler and plumbing services. A family-run team putting customers first.

Who We Are at Denner Heating

At Denner Heating, we are a local business; we are your neighbours. We provide heating engineers to make homes and businesses in Annan, Dumfries and throughout Cumbria, warmer, safer and more comfortable.

We began with a simple philosophy to provide efficient, uncomplicated heating and plumbing services. To avoid technical jargon, unexpected call-out fees and high-pressure sales techniques. The more customers we have helped over the years, the more people who keep returning to us for a second, or third time.

Local and family-run

As a family-run business, we care about looking after people the right way. This means taking an emergency plumbing call, fitting a new boiler or signing up for a service plan all mean a job well done.

We live and work in the local areas we cover, so when you call Denner Heating ,you’re getting local people who care.

Denner Heating engineer working on a boiler in Dumfries

Local Focus, Local Care

We are committed to providing the best service possible to the people of Annan, Dumfries and Cumbria and being a local business is important to us. Unlike national call-centres, when you call Denner Heating, you’re always talking to a local, qualified engineer, which means better response times and a personal service every step of the way.

Booking with us is easy; you can request an online estimate or visit our booking page to schedule a time that suits you. Our engineers are always on time, turn up with everything they need and get the job done properly.

Select the service you need and get started today.

We look after central heating systems for homes and businesses, making sure everything runs efficiently and reliably all year round.
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From full bathroom renovations to small home extension projects, our plumbing team is here to offer expert advice and hands-on support.
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Stay on top of heating issues with our boiler service plans, available in three clear tiers to give you flexible cover and great value.
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What We Do

Our services cover everything from boiler fitting and central heating repairs to general plumbing installations and ongoing boiler care plans. We work with both residential and commercial customers, providing flexible solutions that suit every budget and requirement.

  • Boiler installations & replacements – modern, energy-efficient boilers fitted by Gas Safe registered engineers.
  • Heating system repairs – fast, reliable fixes to keep your home warm when it matters most.
  • Plumbing services – from leaky taps to full bathroom refits, no job is too small.
  • Boiler service plans – affordable monthly options to give you peace of mind all year round.

Why Customers Choose Us

We know you have options when it comes to heating engineers, but here’s why our customers recommend us:

  • Honest advice – we’ll only suggest a replacement if it’s genuinely the best option.
  • Clear pricing – no hidden charges or nasty surprises.
  • Local knowledge – we know Annan, Dumfries, and Cumbria inside out.
  • Reliable response times – especially for urgent repairs and call-outs.
  • Quality workmanship – all jobs are carried out to the highest standards.