Contact Us

Call Us During Normal Business Hours:

Monday -  Friday (Closed on weekends)
9 am - 4 pm PST (California, USA)

1 - 925-427-1000

Transitional Technologies, LLC
671 Willow Pass Road Unit 4
Pittsburg, CA 94565

If you are local, you can call and drop by our New Building:

If you want to drop by to pick up a kit or talk to a Representative about our HHO kits and technology, we recommend you CALL first to make sure someone will be available to help you. If we are busy we may not be able to free someone to talk to you personally (without an appointment.
If you want to purchase a kit in person, we can do that here as well, but be aware it takes 10 minutes or so to package a kit in our shipping area (depending on how busy we are), after order is placed. If you know you will be purchasing one, it is better to call us on the phone and get it ordered (no shipping costs), and we can have it ready for you to pick up when you arrive.
If you have a question about Dealer Pricing, Affiliate Sign Ups, Volume purchases, or what type of kit you need for your vehicle, give us a call at the number above, or EMAIL us below. We respond quickly to our emails, except on Sundays. 
We accept all major Credit Cards, Cash, or Paypal for any walk in business or Will Call. We do Not take personal checks or money orders.
Thank you for contacting us- we will get back to you as quickly as possible!