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The real question is what won't we do.  We are equipped to solve all of your commercial HVAC and refrigeration needs.  We have the veteran experience to do the jobs others can't.  

Preventative maintenance

Maintain efficiency & save on energy costs. Avoid an expensive repair or unexpected replacement by getting year-round protection with a preventative maintenance care plan for your heating & cooling system.


The longevity of your air conditioning unit is dependent upon proper installation and regular maintenance from a certified and reputable company. ETS is confident that its technicians are able to install and maintain any type of air conditioning system to the manufacturers specifications. 


Our installers don’t take shortcuts installing. The job is done the right way and not the easy way. Our installers are paid by the hour not by the job! Their goal is to provide you with the neatest job possible.

Hours of Operation


7:00 am - 4:00 pm


7:00 am - 4:00 pm


7:00 am - 4:00 pm


7:00 am - 4:00 pm


7:00 am - 4:00 pm



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Veteran Experience. Expert Service.





RTU, AHU, rooftop unit, air handling unit, commercial HVAC, heating and cooling

RTU's & AHU's

From 3-150 Ton RTU's or AHU's with single stage or multiple stages we can repair, replace, or maintain your equipment.

boilers and chillers, HVAC, commercial HVAC, heating and air condition, industrial boiler, industrial chiller


We offer installation, repair and maintenance services for all boiler repair, boiler replacement and boiler maintenance projects. Our experienced engineers carry out a wide range of industrial boiler services for projects of all sizes. From complete boiler house refurbishment, replacement of boiler rooms to smaller projects like replacement of pumps and controls

boilers and chillers, HVAC, commercial HVAC, heating and air condition, industrial boiler, industrial chiller, pumping system,


We are experts in refrigeration and air conditioning service and maintenance. Our clients depend on us to ensure their vital cooling systems continue to perform efficiently and reliably. Our teams of fully-qualified air conditioning and refrigeration engineers carry out system servicing, maintenance, inspections, repairs and refurbishment to the highest standards.

VRF system, commercial HVAC system, heating and air conditioning, mini split hvac system, ductless system

VRF & Ductless Systems

VRF Systems can run numerous indoor units connected to one outdoor unit, making them suitable for medium to large buildings that demand high performance with optimum efficiency. Let us maintain your current system or peak performance.

tankless hot water system, tankless hot water heater, heating and cooling, HVAC, industrial HVAC, commercial HVAC

Tankless Hot Water Heaters

Tankless water heaters are both highly energy efficient and cost-effective for most homes and businesses. Tankless water heaters heat water on demand, rather than storing gallons of water at a time that can rust out the tank and potentially leak out. With tankless, there is never a bulk storage of water because it heats water as you use it meaning you only heat the water you need which can also help reduce energy bills. Plus, because water is always moving through the tankless water heater, you always get fresh water. We can replace your tankless water heater or provide the necessary maintenance for you.

cooling towers, commercial cooling tower, commercial HVAC, heating and air conditioning

Cooling Towers

It is essential to ensure evaporative cooling towers and condensers are correctly and professionally maintained for safe efficient operation, to maximize operational life and ensure compliance with current legislation.

walk-in cooler, walk-in freezer, refrigeration, commercial HVAC/R, blast freezer,


We're proud to offer market-leading commercial installation services across the city of Columbus, we install cold stores, walk-in freezers & coolers, blast freezers, production rooms and much more. No project is too big or too cold for the ETS team. To learn more about our installation services and to discuss your specific refrigeration and installation needs, contact us today

DOAS, dedicated outdoor air system, commercial HVAC, HVAC exaust system

Exhaust Systems

As always, it’s best to catch any problem early so here are a couple of basic things to look out for: - Is your kitchen becoming smokier? - Is your fan making more noise than usual? These are good indications that a system failure may be imminent but we’re always here on hand and are available at short notice to complete a system health check.

radiant tube heaters, commercial HVAC

Radiant Tube Heaters

Radiant Services has held its place in the industrial and commercial heating sector, not only for the high quality products that we provide but because of our values.

industrial gas lines, commercial gas lines, pipework, natural gas line, commercial equipment, industrial HVAC

Gas & Refrigeration Piping

We offer comprehensive commercial pipework installation service for various applications. We specialize in natural gas lines for commercial equipment.

commercial HVAC system UV lights, germicidal UV, bipolar ionization

Germicidal UV & Bipolar Ionization

As workplaces gear up to welcome employees back and businesses prepare to reopen buildings closed during the COVID-19 pandemic, companies are looking to building engineers and facility managers to provide guidance on how to protect occupants now and during future epidemics.

customer with thumbs up, cutomer satisfaction, client

Customer Satisfaction Guaranteed

We serve both commercial and industrial clients and offer a variety of money-saving solutions. We combine our use of the highest quality parts and equipment, and our dedication to delivering exceptional service to provide you with top quality HVAC service. Warranty included with all services.

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