Not difficult to do yourself, just requires a bit of patience. Read this and have a go, it is highly satisfying: http://www.sheldonbrown.com/tooltips/truing.html
@markrjohnson 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.
Not difficult to do yourself, just requires a bit of patience.
Read this and have a go, it is highly satisfying:
http://www.sheldonbrown.com/tooltips/truing.html