Refrigerant Piping

At JL Service Group, we recognize that refrigerant piping is the backbone of every HVAC system, playing a crucial role in maintaining efficiency and reliability in temperature control. Our dedication to excellence is evident in every aspect of our work, from thorough planning and precise line routing to the essential techniques of crimping and nitrogen brazing.

By applying disciplined installation practices and leveraging our deep expertise in refrigerant‑based HVAC systems, we deliver split‑system solutions that maximize performance, reliability, and long‑term efficiency. Our installations integrate cleanly with your facility’s structure, ensuring stable operation and code‑compliant performance across all conditions.

Whether your project involves new construction or upgrades to an existing building, our commitment to quality, safety, ensures every system is installed to manufacturer specifications and industry best practices. From refrigerant piping and line‑set routing to pressure testing, evacuation, and commissioning, JL Service Group provides turnkey installations built to operate dependably for years to come.

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Certifications & Affiliations

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

HVAC Contracting License H2, H3-1

Electrical Contracting License SP-PH

Disadvantaged Business Enterprise

Minority Business Enterprise

Historically Underutilized Business

Associated General Contractors

Charlotte Business Inclusion

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Testimonials

"JL Service Group's most recent project with us was to replace some aging rooftop units on our building. Even in this crazy time of supply chain issues and equipment delays, he was able to track down equipment and get us taken care of in a matter of weeks, not months. His crews are professional, sensitive to working in occupied spaces, and effectively communicate with our superintendents, tenants, and owners."

Brian B. Williams

President, McKenna Construction

"It has been a pleasure working with JL Service Group, especially Mr. Harmon and his company for the last two years on Ft. Bragg. Their people have always been extremely responsive, professional, and knowledgeable, but the biggest praise I must give them is that they were always on time and met deadlines, which is more important than anything when your performing federal contracting work."

James Davis

President, Corporate Military Contracting Inc.

"Jonathan and his team at JL Service Group are conscientious business partners who exhibit a sense of urgency for any issues that may arise. On numerous occasions, the JL Service Group team has demonstrated that they care about my business. Specifically, our firm required the removal of aged, old Libert systems and the installation of two new Liebert systems to sustain our server rooms. With a tight deadline, they were able to complete the project on time. Throughout each phase of the construction process to final completion they were a collaborative partner. I trust their expertise and knowledge to maintain our current systems on an ongoing basis and would highly recommend them as a partner with any HVAC projects, existing or future."

Cathelene Thomas

Chief of Staff, RAILINC