Home Business British Gas to increase prices by 5.5% British Gas to increase prices by 5.5% April 10, 2018 39 0 British Gas to increase energy prices for dual fuel customers by an average of 5.5% – or £60 a year. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Google+ (Opens in new window)Like this:Like Loading... Related Source by BBC LEAVE A REPLY Cancel reply Please enter your comment! Please enter your name here You have entered an incorrect email address! Please enter your email address here Notify me of follow-up comments by email. Notify me of new posts by email.