Thermacore Garage Doors

Insulated Commercial Garage Doors

Overhead Door offers the industry’s most comprehensive line of Insulated Sectional Steel Doors.

Thermacore® is the premier line of insulated doors available today. Thermacore® Series doors are an ideal choice for buildings that require the highest levels of thermal efficiency and air infiltration.

Click here to view the complete Thermacore® online brochure.

  • The maximum width for this series extends up to 40’2”.
  • The maximum height for this series reaches up to 32’1″.
  • An R-value up to 26, combined with an air infiltration level up to .08 cmf at 15 mph, guarantees a superior thermal performance.
  • A thermal break prevents cold or heat from passing through the section.
  • Between section seals are installed to contribute to a superior thermal performance.
  • A steel-polyurethane-steel sandwich panel makes these doors extremely durable.
  • A unique continuous hinge attachment strip allows sections to be cut to length in order to repair damage on site.
  • A flexible bottom weatherseal with retainer reduces conductivity of heat and cold, minimizes air and water penetration, and accommodates irregular floor conditions.
  • CFC and HCFC Free Foam provide stellar insulation.
  • Baked-on, polyester paint finish eliminates the need for field painting and provides long-lasting protection against all elements.
  • Glazing
  • High cycle springs
  • Double end stiles
  • Heavy duty hardware
  • 3” track
  • Posi-Tension drums to eliminate cable jumping are available.
  • A bottom sensing edge, photo eyes and a safety bottom fixture to catch sections should the cable break, are all available.
  • Four-section pass door
  • Rubber header seal and jamb weatherstripping
  • Exhaust ports
  • Electric operator
  • Chain hoist

*A 10-year warranty on delamination is included. All other components are under warranty for 1 year.


Overhead Door Company of Washington, DC
Serving Washington DC & Suburban Maryland
6841 Distribution Drive
Beltsville, MD 20705
(301) 937-1800

Overhead Door Company of Washington, DC
Southern MD Branch
151 Schooner Lane, Suite 27
Prince Frederick, MD 20678
(301) 937-1800

Overhead Door Company of Washington, DC
Northern VA Branch
8641 Virginia Meadows Drive
Manassas, VA 20109
(703) 334-4050

Overhead Door Company of Central Virginia
Serving the greater Richmond VA area
10391 Leadbetter Road
Ashland, VA 23005
(804) 550-1300

Overhead Door Company of Harrisburg-York
Serving the greater metropolitan Harrisburg PA area
576 Grandview Drive
Lewisberry, PA 17339
(717) 938-6101

Overhead Door Company of Harrisburg-York
Serving the greater Hanover-York PA area
23 Amy Way
Hanover, PA 17331
(717) 633-5776