Just wanted to leave an internet trail to recommend Bill the Treadmill Guy in Kansas City. His website is . If you need in-home service for your treadmill, I highly recommend him.
He was fully booked when I called, so it took a couple weeks to schedule a visit. His price was $95 minimum for the visit, plus parts. He saw that our old treadmill (I bought it for $50 off craigslist) just needed a new belt, so he replaced the belt and gave everything a clean and tuneup. Total price $140.
Can’t beat that. Nice guy and professional work. Highly recommended.