



SERVING PHILADELPHIA, LEHIGH VALLEY, CENTRAL PA, STATE COLLEGE, MARYLAND, DELAWARE, AND NORTHERN VIRGINIA
For more than 75 years, Coward Environmental Systems, Inc. (CESI) has been representing leading manufacturers of environmental and air management systems.
Our people and our manufacturing partners have supported the engineering community and construction industry in the Philadelphia region and beyond.






OUR VISION
Lead the next century of advancements in the building environment by representing the industry’s most innovative manufacturers and cutting-edge technologies.
AIRFLOW MANAGEMENT SOLUTIONS
Trust Coward Environmental’s team of experts. We have been supporting the airflow industry for over 75 years. Dedicated to our customers, CESI partners with you on all your air handling and indoor environment needs.
CESI represents leading commercial systems in cooling and heating air handling units for pharmaceutical, healthcare and education industries. Utilize fully integrated systems specifically created for your rooms in size, function, and features that control a precise temperature and humidity.
Areas of Expertise

AIRFLOW MONITORING
AHUs in commercial spaces provide a healthy, comfortable, and efficient built environment. Beyond that, monitoring airflow is necessary to regulate indoor air quality, energy usage, building pressurization, and humidity control. Coward Environmental represents airflow monitoring manufacturers that offer best-in-class solutions and a wide array of products to fit nearly any design.

AIR CLEANING & PURIFICATION
Healthy spaces, clean rooms, and precision manufacturing all demand a higher level of purified air and surfaces. Facilities that need to remove or destroy pathogens, viruses, germs, and other microbial particles can work with Coward Environmental Systems Inc. We help our clients manage a range of unseen risk factors that can compromise occupants or procedures.

CLEANROOMS
CESI offers a variety of advanced products that deliver energy-efficient solutions for any cleanroom application. Our cleanrooms maintain a controlled environment that virtually eliminates pollutants, including aerosol particles, chemical vapors, dust, and airborne microbes.

CUPS AND PENTHOUSES
Our prefabricated central utility plants and penthouses save time, money, and ensure the attention to detail provided by assembly in a controlled environment. Constructed and tested offsite, each prefab option is easy to transport and is installed quickly onsite, avoiding construction deadlines and interference from other building trades.

CHILLERS, CONDENSERS, & COOLERS
Coward Environmental helps our clients size and select efficient air-cooled, water-cooled, adiabatic cooling, and dry air cooling systems. Our wide selection of cutting-edge chillers, condensers, and coolers, allows our team to drive whole-life ownership costs down while mitigating mechanical risks.

CUSTOM FANS
Each of the custom fans CESI offers, from blowers to plume fans, is designed to suit a particular use and a specific function. Our sales engineers understand the differences among these product lines and the applications they serve, and can quickly determine the best choice for any project. We help clients identify efficient custom fan solutions, regardless of the design intricacies.

DEHUMIDIFIERS
We work with leading manufacturers of dehumidification equipment around the world to provide the best solutions. Our engineering department helps clients identify systems that work with their build, energy requirements, facilities, and the unique dehumidification challenges presented by the various industries served.

When our clients need effective equipment to remove dust, gases, airborne toxins, and fumes from indoor spaces, our sales engineering department is here to help size and specify sophisticated technology designed for toxin collection, scrubbing, extraction, and environmental purification, regardless of the application.

HUMIDIFIERS
Our humidifier manufacturers continue to introduce sophisticated innovations that allow engineers to create solutions that stabilize humidity, maintain occupant health and comfort, and provide more consistency to a wide range of medical applications and industrial processes.
REPRESENTING LEADING AIR HANDLING MANUFACTURERS


































NEWS & INFORMATION

The Right Cleanroom Solution for Every Need
BASX is the North American leader in cleanrooms. Its commitment to cleanrooms started decades ago with the refinement of an innovative flush ceiling system. Since

Expanding Facilities and Training Force in U.S. is a Smardt Move
David Donges, General Manager of the Americas at Smardt Chiller Group, recently talked with Coward Environmental Systems, Inc. (CESI) about efforts to build and fortify

Wistex Custom Builds VFDs and Control Panels for Perfect Control
While controlling flow or output in systems involving fans or pumps may seem straightforward, it involves carefully considering various factors such as flow rate, pressure,