Professional Engineering • HVAC Contracting


Welcome to PAX-SUN, INC.



We are a professional mechanical, electrical and plumbing (MEP) engineering and HVAC construction firm with offices in Lufkin and Nacogdoches, Texas. We provide a variety of commercial, industrial and residential services within both divisions. Customer satisfaction, product and service guarantees, and complete professionalism are crucial elements of our continued diligence even in our economy's most difficult times.

Established in 1978, we have served the East Texas area for over 30 years. Engineering service areas, in the past, have extended from Austin to Texarkana while the Construction service area ranges anywhere from Orange to the Ft. Worth area.

What can you expect from Pax-Sun?


Quality Service: Whether designing MEP systems or repairing household central heat and air-conditioning systems, Pax-Sun’s staff is committed to providing the best products and services in an efficient and effective manner.

Experienced Staff: With motivation and encouragement to continue expanding on foundational skills, our staff possesses experience across a spectrum of professional engineering and HVAC construction services and products.

Where we are and how to contact us: