Get a gas Safe plumber, that be cheaper/combine two small jobs.
Question of availability. Should be able to but the ones I've spoken to so far aren't about.
@CYOA started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Get a gas Safe plumber, that be cheaper/combine two small jobs.