4-L Engineering has been serving clients in the Dallas/Fort Worth area since 1964, offering engineering solutions in air conditioning and plumbing.

4-L Engineering About Our Company

Our Company

4-L Engineering Co. has served the Dallas area for over 50 years. We take pride in our technicians and dedicate time to training in both technical and customer service skills.

4-l engineering our team

Our Team

Our highly trained technicians are hand-picked to represent our company and are an extension of 4-L Engineering and our commitment to quality and excellence.

4-L Engineering Our Services

Our Services

4-L Engineering specializes in engineering, contracting, service and service agreements on air conditioning, plumbing and mechanical systems.

engineering air conditioning and plumbing

Our mission is to provide our customers with exceptional service, quality equipment and supplies, and professional technicians with the highest level of training and support in the industry.

engineering air conditioning and plumbing

Our mission is to provide our customers with exceptional service, quality equipment and supplies, and professional technicians with the highest level of training and support in the industry.

PRIMARY EQUIPMENT

Centrifugal, absorption, reciprocating, refrigeration and more

SECONDARY EQUIPMENT

Boilers, air handlers, coils, cooling towers, pumps and more

TESTING

Non-destructive testing, water analysis, building leakage and more

PLUMBING SERVICES

Repair and installation, drain cleaning, jetter services and more

MECHANICAL SERVICES

Pipe Fitting, Repair and installation, welding, rigging, sheet metal and more

ENGINEERING SERVICES

Due Diligence, Load Analysis, Expert Testifying, Energy Star Inspection and more

Contact 4-L Engineering Today • (972) 276 – 5088