Shade Shop. National franchise, has store on 4th St. Berkeley. They install.
Just had my blind replaced. Very nice, clean up afterwards, and removed the old blind.
Bay Area Motorized Shades
Web: bayareamotorizedshades.com (March, 2021)
The following store was very helpful in repairing a window blind. Their charges are reasonable also $85 to come and then $85 an hour:
They are located in Oakland but come out to Point Richmond. (January, 2021)