01444 460110


Installing in: Wealden, Brighton and Hove, Lewes, Mid Sussex, Tunbridge Wells, Horsham, Crawley, Eastbourne, Tandridge, Guilford, Adur, Arun, Worthing, Reigate, Mole Valley, Epsom, Sevenoaks, Tonbridge, Hastings, Rother and beyond...


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Welcome to Downs Energy, for cavity wall, solid wall and loft insulation in Surrey, Sussex and South London.

Here's what our customers are saying:

Ms B of Hanworth- “Had a gentleman round from Downs Energy yesterday, he was so efficient. Can not thank you enough, I have been in this bungalow 16 years and never had such good service. Once again thank you." 23/03/2016.    Mr O of West Sussex- “I just wanted to say a big, big thank you for completing the wall insulation without delay. It was pleasing to get people who were not only helpful, but listened and completed the work without fuss or excuses. It seemed like an impossible task when after being let down by a company in West Sussex your MD made the impossible work within the small time frame we had. Then there was the friendly young lady who called to explain the cost and confirm not only who would call to complete the work but also what would happen on the day. Then there was Chris (the installer). He was friendly and listened to what we needed for the building inspector. He left the place tidy and went through all of the paperwork. I am happy to recommend the company to anyone and if we ever need more work then you will be our first call”. 11/9/15.    Mr R of Dartford- “Your installer, Chris carried out the cavity wall insulation at my property. May I put on record my appreciation of the speed and efficiency that he completed the task. He was very personable and knowledgeable in all the aspects of insulation, the materials and application and so I was able to learn about the advantages to be gained”. 15/10/15.    Mr G- “I would like to thank you for the huge help and improvement achieved with the Loft insulation that Donws Energy have done in my House. I can already feel some changes and its not that cold outside yet. I’m extremely happy with everything”. 17/9/15.    Mr G of Horley- “Just wanted to say what a terrific job the boys did on Wednesday. They were really friendly and a credit to the company”. 25/9/15.    Mr S of Lewes – “I just wanted to say how pleased I was with the work done at our home. We had two guys on site who explained what would be happening and made sure I was happy before proceeding. They really seemed to go out of their way to get to all the different corners and pillars within the house. They made a good job of repairing the holes in the walls and had a good clean up after. Best of all the house is noticeably warmer!”.    

At Downs Energy we specialise in domestic and commercial external wall, cavity wall and loft insulation, working throughout Sussex, Surrey and South London with our experienced teams of installers. We work with private households, local authorities, social housing providers and building contractors to install thermal insulation measures and help prevent damp in buildings.

In addition to upgrading thermal insulation we also investigate and repair damp problems. Part of the repair process can involve the extraction of existing cavity wall insulation prior to fully investigating the cavity and making repairs necessary, then replacing the insulation when wall is once more weather proof, ensuring a warm dry home exists for residents.

All our work is geared towards energy efficiency and providing householders with warmer, drier homes. From our many testimonials we’re proud to have helped so many households enjoy warmer homes and at the same time save on their heating costs.




Solid Wall Insulation