Swenson Electric
8440 E Cholla ST
Scottsdale AZ 85260-6610
Office 480-483-9317
Cell 602-397-8674 ("Guy" - Owner)
Also listed on Angie's List.
Casey and David installed a 14-50 outlet in my garage which included running some conduit, installing an additional breaker, etc. My particular situation ended up being roughly $350 parts and labor.
They were very professional, quick, showed up on time, and completely cleaned up after.
They claimed they've done a number of Tesla related residential installs, and also had a contract to do some electrical work at the Scottsdale Tesla Service Center.
Highly Recommended.