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.

Purchased a step-up transformer from Maddox knowing nothing about them...These guys went above and beyond on top of excellent pricing. I honestly could fill this up with nothing but good things to say. If I could give them 10 out of 5 stars I would.

Michael L.

Great service and support. They make it easy, fast shipment, fair prices. If you need a reliable transformer in the US, and you one serious business, choose Maddox.

Richard O.

Greg went OVER AND BEYOND to get us what we needed on a holiday weekend. Without his assistance, our operation would have been in serious trouble. He helped us find the correct transformer and coordinate a pickup from the warehouse all within an impossible timeframe. Thank you thank you. Will definitely use Maddox for any future transformer needs.

Brandon R.

I have purchased many pieces of equipment from Maddox ranging from 1000 kVA transformers to 10,000 kVA transformers as well as fused and non fused load interrupter switches. I am happy with the cost and the lead time which has been perfect for the fast paced schedules with tight budgets we have been facing. The customer service has been on the spot when questions arise.

Corey Z.

Worked hard to meet my deadline. very helpful & knowledgeable.

Joshua H.

Worked excellent, tech support was incredible with helping me figure out what I needed as well

Heath P.

Very responsive to inquiry, prompt shipping, protective packaging, on time delivery. Will be back!

Ralph B.

Website was easy to navigate where I could order my own transformer with little assistance.

Christopher B.

We had a customer who lost their primary transformer in the middle of the night. Maddox was able to get a temporary transformer on site in hours. They also rebuilt the damaged transformer in record time while no sacrificing any quality. I would recommend Maddox to anyone for transformer needs.

Nicholas W.

We worked with Maddox most recently to repair a transformer at our site. Cameron and the repair team were very communicative, professional, and understanding of our needs to get back online as quick as possible. We are very impressed with the level of service we received and look forward to working together in the future.

Kate 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