The most recognized name in the game, producing industry leading high efficiency heating products for over 50 years. From traditional Unit Heaters to Rooftop and Indoor Make-Up Air units, Sterling HVAC has the solution to fit every residential, commercial or industrial application.

Great customer service. Quick response time and great product.

One of the most dependable units on the market. Its the only one I would every buy.

High quality product and great customer service makes Sterling a invaluable vendor partner.

Great information be put out at the trade show.

Sterling makes great unit heaters and has great customer service. Doesnt get any better than that!

Easy to work with. Wide product selection.

We have had no problem with the customer service Sterling offers

I worked for a distributor in NJ that sold these units and I never had a bad experience with them.Their customer service department is efficient and gets back to you quickly.

Excellent quality and the Customer service is top notch. A real go to for your heating needs.

Great product selections and good customer service.

Good quality products! They set the bar high!

GREAT EQUIPMENT AND CUSTOMER SERVICE...

Testo products are a stocking standard at our Johnsstone Supply!

Great product and very efficient.

Great unit heaters. Easy to install and works great.

These Unit heaters are awesome!

Great products from a great company

Great products, and AMERICAN MADE!!!

Quailty unit heaters