McCarl's Preferred Services
829 24th Street
Altoona, PA 16603
Phone: 814-943-6485
FAX: 814-943-0331

Shawn P. McCarl, Owner
Tim Bartkowiak, General Manager
Dave Hess, Service Manager
Kevin Laird, Business Development
Janet Aungst, Service Dispatch Coordinator

Year Founded: 1998

1998 - Shawn P. McCarl & McCarl's Services (located in Cranberry) acquired Decker Plumbing and Heating (located in Altoona). This business became McCarl's Services, LLC owned and operated from both the Altoona and Cranberry locations.


2000 - S. P. McCarl & Company, Inc. purchased the Altoona portion of McCarl's Services, LLC business and created S. P. McCarl, LP. This new company focused on residential and small commercial mechanical service and replacement work, in addition to plumbing and HVAC commercial construction to private industry.


2001 - S. P. McCarl, LP acquired Hess Plumbing and Heating. With the new acquisition, S. P. McCarl, LP changed its identity to Preferred Plumbing, Heating and Cooling by McCarl's.


2005 - McCarl's Preferred Services was created resulting from a merger of Preferred Plumbing, Heating and Cooling by McCarl's and McCarl's Services, LLC. This merger created one of Central Pennsylvania's largest mechanical service companies.


2011 - McCarl's Preferred Services began to pull away from the residential sector to focus solely on commercial and industrial accounts. Services include: planned maintenance, repair service, replacements and new installations and energy auditing.

Plumbing - Installation and Service
Heating - Installation and Service - Forced Air, Energy Recovery Ventilation, Zoning, Hot Water, Radiant, Steam, Air Conditioning - Installation and Service - Split System & Package Systems
HVAC Design and Consultation
Planned Maintenance Agreements

Major Projects:

  • University Orthopedics State College 2nd floor Control System Replacement
  • PSU - Carpenter Building - 5th Floor Renovations
  • Gardener's Candies Warehouse Addition






McCarl's Preferred Services is a commercial and industrial HVACR/Plumbing service contractor located in Central Pennsylvania. We specialize in planned maintenance, HVACR & Plumbing service, replacements and new installations as well as energy auditing. Our skilled technicians have worked in countless facilities throughout our region including: medical buildings, manufacturing plants, educational institutions, government buildings, office buildings and churches.