(919) 812-9149

2121 TW Alexander Dr. Morrisville, NC 27560

Our Mission

To be an industry leading, growth-oriented company that provides innovative mechanical heating, ventilation,
and cooling services.

OUR Values


We work safely to analyze each task on the job to ensure it can be done safely. We are committed to providing a safe work environment to ensure everyone goes home.


We work relentlessly to create an atmosphere where everyone takes pride in the systems we construct, when we leave a job site we want to have left a lasting impression with our knowledge, professionalism, and quality of work.


We do what we say we are going to do; and this applies to everyone we work with which include our clients, vendors and co-workers.

Exceptional Service

When we leave every job site, we want to have left a lasting impression with our professionalism, our knowledge, and our quality of work.

Meet Our Leadership Team

Our senior leadership has 30+ years combined experience in all phases of HVAC mechanical construction, from planning and estimating to engineering and installation. As part of JL Service Group’s strong commitment to safety, quality, and service, both Jonathan and Robert will be involved in all levels of management and estimating projects until completion.

Jonathan Harmon

President & Owner

As President and Owner of JL Service Group, Jonathan began his career in 2007 as an installer and earned his license in 2016 . He has 15 years of HVAC field experience, specializing in commercial, industrial and residential projects.

Prior to starting his own company, Jonathan worked for a large mechanical contracting firm. There, he quickly moved from the service team on to project management and business development, serving on projects such as industrial water and wastewater treatment facilities, data centers, and commercial real estate retrofit installations. This experience proved invaluable, allowing Jonathan to gain firsthand knowledge of all phases of the construction process from start to finish.

Jonathan holds multiple mechanical contracting licenses H2 , H3-1 and an electrical SP-PH contractor license in the state of North Carolina.

Robert Russell

Senior Project Manager & Lead Estimator

Our Senior Project Manager, Robert Russell, is a jack of all trades with a tenured history in mechanical construction.

Robert began his career in 1988 as an apprentice installer and earned his license in 1995. He has more than 25 years of experience as a commercial and industrial project manager, successfully and safely overseeing multi-million dollar projects.

He is accomplished in all aspects of contracting including: budgeting, estimating, P&S and D/B, retrofits/renovations, new construction, campuses, manufacturing, industrial processing, financial management, scheduling, procurement, labor, and engineering.

Our Certifications

JL Service Group is a fully licensed, bonded, and insured HVAC mechanical contracting firm.

Mechanical Contracting License H2, H3-1

Electrical Contracting License SP-PH

Disadvantaged Business Enterprise

Minority Business Enterprise

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