Are always prompt(usually show up on early side of appointment window), always friendly, thorough, have been flexible when I’ve asked to reschedule due to weather, and explain the job extremely well — Dirk and Dale know a lot, and I always seem to learn something new when they come. Their prices are better than other companies, at least for services I’ve used. For context: –Introduced to them from home warranty call for leak coming from furnace. Figured out cause right away that 2 other companies could not determine. –Have used since 2013 for seasonal maintenance on furnace and AC.