Top Rated & Award Winning Experts

Boiler, Heating & Plumbing Experts Based in Lewes

Serving Homes & Businesses Across Sussex
Your local and trusted engineers, delivering professional boiler installations, repairs, and heating solutions with reliability, precision, and exceptional customer care across Sussex.

Emergency Plumbing & Out-of-Hours Call-Outs Plumbing problems don’t always happen during office hours. That’s why Southern Energy Group offers emergency plumbing call-outs, with evening and weekend availability for urgent issues such as leaks, burst pipes, loss of water, or heating failures. Our local engineers aim to respond quickly, assess the situation properly, and carry out safe, effective repairs to minimise damage and disruption. Out-of-hours appointments are subject to availability.

Call 07759493013

Quality Assured & Certified

      EXCELLENT  
   Based on 55 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Bonnie Jones 
 
 
 
 Trustindex verifies that the original source of the review is Google. Amazing service! Cannot recommend these guys highly enough. Service was quick and efficient and saved us and fitted our boiler very quickly just before Christmas. Would 10/10 recommend to anyone. Xo
  
 
      Posted on Google  
   
   Sue Dunkley 
 
 
 
 Trustindex verifies that the original source of the review is Google. I’m really pleased with the bathroom refurb undertaken by Dan and his team.  Would definitely recommend 🙂
  
 
      Posted on Google  
   
   Audrey Yong 
 
 
 
 Trustindex verifies that the original source of the review is Google. Dan is responsive, reliable and pleasant. Work was completed efficiently and  was reasonably priced. Would definitely recommend.
  
 
      Posted on Google  
   
   Max Taylor 
 
 
 
 Trustindex verifies that the original source of the review is Google. I recently used Southern Energy Group and couldn’t be happier with the service. From the first call they were professional, clear, and genuinely helpful. The team turned up on time, explained everything properly, and carried out the work to a really high standard. Communication was spot on throughout, and the whole job was handled quickly and without any hassle. It’s rare to find a company that’s this reliable and easy to deal with. Highly recommend Southern Energy Group — quality service from start to finish
  
 
      Posted on Google  
   
   Jess Scott 
 
 
 
 Trustindex verifies that the original source of the review is Google. Really thankful for the kind and friendly service they gave to my dad. Communicated well with me over the phone to arrange the service of his boiler. Many thanks and will definitely use again!!
  
 
      Posted on Google  
   
   Kingsley Scott 
 
 
 
 Trustindex verifies that the original source of the review is Google. Service carried out on my boiler. Great service and very happy to help as I am older and needed to move a few things to get to my boiler. Thank you
  
 
      Posted on Google  
   
   James 
 
 
 
 Trustindex verifies that the original source of the review is Google. Friendly and approachable and very great move after sales support.
  
 
      Posted on Google  
   
   Julie Hamilton 
 
 
 
 Trustindex verifies that the original source of the review is Google. The company were very efficient in coming out to solve initial problem quick with quote for new boiler tradesmen were friendly & turned up as stated good price for work, clean & tidy would highly recommend them
  
 
      Posted on Google  
   
   Valerie Sinclair 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very happy with the refurbishment of our shower room. Thank you to Dan for organising it and James for carrying out the plumbing work expertly.  Thanks also to George for the excellent tiling. All work was carried out very efficiently and tidily and within the time specified. Would highly recommend this company.
  
 
      Posted on Google  
   
   Tom Upson 
 
 
 
 Trustindex verifies that the original source of the review is Google. Dan and his team have been reliable and effective plumbers who have managed to achieve a fantastic finish throughout our home. Highly recommended  ⭐ ⭐️⭐️⭐️⭐️

Your trusted plumbing and home energy solutions partner

based in Lewes, East Sussex.

With a strong reputation across Sussex, Kent, Surrey, and South London, we specialise in boiler installations, repairs, and all aspects of plumbing and heating. Our experienced engineers deliver high-quality workmanship for homeowners, landlords, and businesses alike — from bathroom installations to renewable energy systems.

Whether you’re facing a boiler breakdown, planning a new bathroom, or exploring greener heating options, you can rely on our team for safe, efficient, and expertly finished work every time.

Need help fast? Request a free quote or call us now on 07759 493013.

Call 07759493013

Our Services

Complete Plumbing & Heating Solutions

From everyday plumbing repairs to full heating system installations, we deliver reliable, high-quality workmanship throughout East Sussex. Our experienced engineers handle:

Plumbing Service

Bathroom Fitters

Gas Services

Renewable Heating & Air Source Heat Pumps

New Boiler Installations

Boiler Servicing

Boiler Repair

Kitchen Installation

Don’t let plumbing issues disrupt your day— get in touch today to arrange a visit from our qualified team.

Call 07759493013

Why Homeowners in Lewes and Beyond Trust Southern Energy Group

Local and Trusted
Based in Lewes, we serve East Sussex and surrounding areas with pride and integrity.
Fully Qualified and Insured
Our team includes Gas Safe-registered engineers and qualified installers, fully insured and trained to current UK standards.
Customer-Focused Service
We listen, advise, and deliver solutions that match your home, budget and lifestyle.
Clear Pricing & Flexible Finance
Transparent quotes with no hidden fees. We offer 0% finance on selected boiler models.
Proven Reputation
Much of our work comes from referrals and repeat clients across Sussex, Kent and Surrey.

Want to experience our 5-star service for yourself? Let’s talk about how we can help.

Call 07759493013

What Our Clients Say

Join the growing number of satisfied customers across Sussex. Read more reviews or get started with your quote.

      EXCELLENT  
   Based on 55 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Bonnie Jones 
 
 
 
 Trustindex verifies that the original source of the review is Google. Amazing service! Cannot recommend these guys highly enough. Service was quick and efficient and saved us and fitted our boiler very quickly just before Christmas. Would 10/10 recommend to anyone. Xo
  
 
      Posted on Google  
   
   Sue Dunkley 
 
 
 
 Trustindex verifies that the original source of the review is Google. I’m really pleased with the bathroom refurb undertaken by Dan and his team.  Would definitely recommend 🙂
  
 
      Posted on Google  
   
   Audrey Yong 
 
 
 
 Trustindex verifies that the original source of the review is Google. Dan is responsive, reliable and pleasant. Work was completed efficiently and  was reasonably priced. Would definitely recommend.
  
 
      Posted on Google  
   
   Max Taylor 
 
 
 
 Trustindex verifies that the original source of the review is Google. I recently used Southern Energy Group and couldn’t be happier with the service. From the first call they were professional, clear, and genuinely helpful. The team turned up on time, explained everything properly, and carried out the work to a really high standard. Communication was spot on throughout, and the whole job was handled quickly and without any hassle. It’s rare to find a company that’s this reliable and easy to deal with. Highly recommend Southern Energy Group — quality service from start to finish
  
 
      Posted on Google  
   
   Jess Scott 
 
 
 
 Trustindex verifies that the original source of the review is Google. Really thankful for the kind and friendly service they gave to my dad. Communicated well with me over the phone to arrange the service of his boiler. Many thanks and will definitely use again!!
  
 
      Posted on Google  
   
   Kingsley Scott 
 
 
 
 Trustindex verifies that the original source of the review is Google. Service carried out on my boiler. Great service and very happy to help as I am older and needed to move a few things to get to my boiler. Thank you
  
 
      Posted on Google  
   
   James 
 
 
 
 Trustindex verifies that the original source of the review is Google. Friendly and approachable and very great move after sales support.
  
 
      Posted on Google  
   
   Julie Hamilton 
 
 
 
 Trustindex verifies that the original source of the review is Google. The company were very efficient in coming out to solve initial problem quick with quote for new boiler tradesmen were friendly & turned up as stated good price for work, clean & tidy would highly recommend them
  
 
      Posted on Google  
   
   Valerie Sinclair 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very happy with the refurbishment of our shower room. Thank you to Dan for organising it and James for carrying out the plumbing work expertly.  Thanks also to George for the excellent tiling. All work was carried out very efficiently and tidily and within the time specified. Would highly recommend this company.
  
 
      Posted on Google  
   
   Tom Upson 
 
 
 
 Trustindex verifies that the original source of the review is Google. Dan and his team have been reliable and effective plumbers who have managed to achieve a fantastic finish throughout our home. Highly recommended  ⭐ ⭐️⭐️⭐️⭐️