In 2006, Sundh signed with Timrå IK for one year. However, in September the same year, during the 2006–07 preseason, his contract was extended to 2007–08. The following month, he was named the first in the line of four candidates for Elitserien Rookie of the Year 2007.[2] The award was eventually won by the forward Patric Hörnqvist.
After three seasons with Timrå IK, Sundh signed a two-year deal with HV71.[3]