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Civil Engineer Surveying
Air Vent

About us

JLH Mechanical is a brand new full-service mechanical contractor located in South Central Kentucky. We specialize in industrial and commercial HVAC, plumbing, medical gas, and piping projects, and offer design-build services to help meet your specific needs. With over 15 years of experience in the industry and having managed a large mechanical contractor in the past, we are dedicated to providing quality and reliable services for our clients. Our team is highly professional and hard-working, and we strive to ensure that all of our projects are completed on time and within budget.

Gas cutter with copper nozzle with a stream of fire.
Pipes at the hardware store used for the construction
Close up of first step in house construction with excavator.
Plumbing service. copper pipeline of a heating system in boiler room
Pipes of HVAC  system (heating ventilation and air conditioning).
Civil Engineer Surveying

Our Services

We offer comprehensive mechanical services to industrial and commercial clients. Our services include HVAC installation, VRF, commercial plumbing, utilities, design build, ventilation, medical gas, and process piping. We are dedicated to providing the highest quality of service in a timely and efficient manner.

Pipes and Pressure

Medical Gas Installation

NFPA 99C - NITC 6010 Certified Installers

Our team of experienced installers have installed medical gas systems in a variety of medical, dental, and veterinary settings. All of our installers are NITC 6010 Brazer certified and have provided hundreds of customers with safe and reliable medical gas systems. We strive to provide the highest quality service to ensure our customers are satisfied.

Design Build 

Our Design Build services are the perfect solution for customers looking for a comprehensive and cost-effective approach to their project. We can take your wants and needs and create an efficient and budget-friendly reality that meets all your goals. Our experienced team of professionals will work with you throughout the entire process to ensure your project is a success.

A close-up of an architectural blue print with black and white details, marked by measurem
Working IMC pipe threading hand tool was made a thread with the threaded hose connection i

Commercial Plumbing and Service

Our plumbing service offers a full range of services, from new installs to  line repairs and drain cleaning . Our experienced technicians provide quality service and ensure that all your plumbing needs are taken care of.


We offer new install and retrofit options for most all HVAC applications.  Commercial duct and exhaust systems. We listen to our customers needs and deliver on thier goals. 

Air condition system on the building roof top.jpg

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45 Sterling Way, Bowling Green, KY 42104, USA



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