And those planning to sell a house have found they must find its "maximum potential", which may include the provision of an efficient energy system.
Putting technology in place to lower consumption of power and achieve cheap gas and electricity bills may be highly desirable to buyers, as could an ongoing deal with a cheap dual fuel supplier.
"Transforming [homes] to their maximum potential not only provides you with a fantastic place to live, but is a sound investment too," Ms DeSouza states.
Recent research by Everest found that 18 million people in the UK plan to improve their property within the next year.
Posted by Jim Tidy
Click here to run an energy price comparison, and see if you could be paying less for your gas and electricity.