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.

Needed a smaller 15kva transformer for my client and Maddox had one delivered on site within 5 days. Timing is everything to us electricians in the field and miles with Maddox is my new transformer sales rep! Thank you guys

David P.

Excellent customer service and transaction overall. Will definetly keep doing business with Maddox in the future.

Danielle M.

Competitive pricing, always the most inventory, and exceptional after sales support. They are my "go to" option for transformers

David D.

This unit works exactly as expected. Great customer service. Couldn't ask for a better experience. Highly recommend this company!!

Daniel S.

This transformer did exactly as it is supposed to. Perfect fit, and very quick shipping. Maddox guys are real pros!

Chip M.

I was delighted to find this transformer in stock and shipped immediately. It showed up fast. Exceeded my expectations. Thank you!

Brent H.

I have used Maddox a few times for transformers, but moving forward they will be my number one source. They have a great stock, always responsive, and a great product!

Bradley C.

Good stuff made in Merica'. We have used Maddox in place of some major names like Schneider and Eaton due to lead times and price. This equipment does not disappoint.

Bob C.

I highly recommend Maddox for your transformer needs. Finding what is needed is a breeze and the prompt service is great not to mention the prices is wonderful too.

Travis P.

Had it In stock - reasonable price , shipped the same day - delivered within a 1/2 of the scheduled time - great job

Ralph B.

Experience the Maddox Difference

Fill out the form and a member of our team will get back to you as soon as possible. Our average response time during business hours is 30 minutes.

A padmount transformer outside a data center filled with fr3 fluid