customer reviews

Don’t just listen to us. Take it from our customers and their 600+ 5 Star Reviews.

Trusted by America’s Biggest Companies

Maddox transformers are installed in all 50 United States, Canada, and South America. We’ve provided thousands of transformers to the companies that power American industry.

What Our Customers Say

Wondering if you can trust Maddox with your next project?  Listen to what some of our customers have to say.

600+ 5 Star Reviews

Having the largest transformer inventory in the USA doesn’t help anyone without the team behind it. At Maddox we pick up the phone when you call and ensure you get the transformer you need when you need it.

Transformer came in very quick got installed the next day worked great will use Maddox again.

Jason C.

This was an easy company to deal with. They were very helpful in the sizing of the transformers that I needed. From the time I order them, it was delivered to the job site in 3 days. Impressive.

Patrick C.

This is our first purchase with Maddox. They were very easy to talk to. The representatives were knowledgeable and the shipment came sooner than expected for the shipment.

Joaquin G.

They made a recommendation to suit my needs at a good price.

LeRoy F.

This is my first time ordering from Maddox & you guys have been great! Stephen & Laura have been a joy to work with & made this the easiest purchase I've made in a while. It's good to find companies that make the buying process easy. I don't know if we'll need many transformers in the future, but I'll definitely be recommending you to our electricians.

Jesse W.

This is a great company to work with! The customer service people are friendly and helpful and keep you updated; Especially Josh! He has just been great! :) The items ship so fast and are packaged very well. Fair prices as well. Will be happy to order from them again. Thanks

David M.

They have stock when others don't and are quick to ship and fill their orders. VERY THANKFUL we found them.

Mike A.

These guys are on their game! I have placed several orders this year and they deliver as promised.

William P.

The transformer I ordered was delivered onsite at our project in two business days. Great service!

Jerome T.

The best place to buy used, now refurbished transformers.

Faith T.

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A padmount transformer outside a data center filled with fr3 fluid