I do almost all of the repairs on our Airstream and tow vehicle. There are too many shops that employ people who know less about my rig than I do and charge far too much for the little or no work that they say has been done.
This resource can be an invaluable when you need it most. It lists all of the shops in each state that have been reviewed. Good and bad reviews are posted.
http://www.rvservicereviews.com/StateList.asp?state=WA
We were in Washington when I copied the URL. Drop the URL into a search engine or the address bar and information about RV repair shops in Washington will pop up. Just go to the home page and click on the state you want to look at.
This website seems to be mature enough to give you a general idea as to what repair shops are nearby and what their ratings are. It functions somewhat like campgroundreviews.com.
Linear Mode
