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Sam DeSanto Co., Inc.

We represent a variety of HVAC and Plumbing manufacturers, serving Washington DC, Maryland, Virginia, and Southern Delaware. We offer a  a wide range of solutions, and the knowledge to help you with your next project.

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What Sets Us Apart?

Knowledge of the Whole System

We work with Engineers to find the best overall solution for their projects. Our people have knowledge of the entire system, not just one piece. We can help find a complete solution to meet any requirement: high energy efficiency, lower long term costs, minimize down time, etc..

Fast Response Times

Outstanding Service

We are with you through every step: from our product suggestions (to meet your project requirements) to our service line support. We have a Service Department, a Parts Department, and provide Warranties. Our engineers will provide the information you seek, and our technicians will provide the assistance needed.

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Our Product Line

bmk platinum 4000 2 (1)

Boilers/Water Heaters

american wheatley hydronic accessories

Hydronic Accessories


Leak Detectors

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Packaged Systems

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bmk platinum 4000 2 (1)


Our Clients

Our Case Studies

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Hyatt Regency Washington on Capitol Hill

fairfax fire department

Office of the Fire Marshal

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Basic Burger

55 Years in Business

Why Choose Sam DeSanto?

Locally Owned and Operated

We are a locally owned family business since 1969, servicing Washington DC, Maryland, Virginia, and Southern Delaware.


We have the knowledge and experience for meeting project goals, and working with project owners, engineers, and contractors.


We have supportive processes and procedures in place with a proven track record.

Our Leadership

Meet Our Team

We are a locally owned and operated family business since 1969. We work together for a common goal to get the job done right the first time, and to prioritize customer satisfaction.

Jeff DeSanto

Jeff DeSanto


Jeff has been serving as the President/CEO since 1979.

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Join Our Team

Our company has a family oriented culture with an emphasis on a strong work-life balance. We also offer many employee benefits.

What Our Clients Say

“I went with AERCO and the Sam DeSanto Company because I know and trust them. We were able to provide recommendations for a completely new setup with the help of AERCO. The Modulex EXT 641 was the natural choice for this project thanks to its small footprint, flexible venting configurations, and reliability. The four modular units within the boiler make maintenance quick and easy, while AERCO’s efficiency helped save 70% in energy cost. The smaller footprint, ease of use, and peace of mind were all welcome upgrades for this Fire Marshal’s Office.”

-Fairfax County Project Manager

Office of the Fire Marshall

“Welders cost a lot more than regular HVAC mechanics. Plus, when you install field-welded systems, you have to leak test and inspect the duct, then insulate it, and then have it inspected again. This was the only product I’ve ever installed that was completely turnkey and shipped ready to install. It might be the first time we did an install and didn’t find there was something missing from the shipment. We found we could get this product much quicker than other [pre-fabricated] products we were looking at. Also, the back-up support we received from Eric Willie was great. He was there for the installation, giving us pointers throughout the process. It went really well!”

-Contractor for Basic Burger

Basic Burger, Arlington, VA

Exceptional service, impressive quality, and fast delivery! 🌟🌟🌟🌟🌟

-Shawn Klean

Manufacturers rep for commercial HVAC, Plumbing, Mechanical contractors. Wholesale to the trade.

-John Tindale

Contact Us to Discuss Your Project