Thermacore Garage Door Collection
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Thermacore Collection – Models 5720, 5740, & 5760
Our most popular door, the Thermacore Collection showcases the epitome of thermal efficiency indoor design. The 490 Series stands out with its patented Thermacore construction, a blend of CFC-free polyurethane insulation encased between galvanized steel layers. Boasting a remarkable 17.5 R-value, this series sets industry standards with EPDM between-section thermal seals for minimized air and thermal transfer.
On the other hand, the 190 Series, another gem from Overhead Door Corporation, features the signature Thermacore metal-foam-metal sandwich construction. With hot-dipped galvanized steel surfaces and two layers of baked-on protection against rust, its core insulation ensures stellar energy efficiency, marked at R-value 12.76. Full-width seals between door sections and a robust bulb-type bottom seal amplify the door’s thermal prowess and resilience against the elements.
Product Specifications:
Series | Insulation | R-Value | Warranty |
190 Series | Polyurethane | 12.76 | Limited Lifetime* |
490 Series | Polyurethane | 17.5 | Limited Lifetime* |
5 Panel Options Available
Standard, Flush, Long, Microgroove, Vertical Short and Vertical Long
Thermacore® Construction
Provides a continuous layer of foamed-in-place, CFC-free polyurethane garage door insulation sandwiched between two layers of corrosion-resistant steel, for maximum thermal efficiency
Polyurethane Garage Door Insulation
Provides thermal efficiency
- U-factor* of .20 (9.31 R-value**): Model 5720
- U-factor* of .15 (12.76 R-value**): Model 5740
- U-factor* of .10 (17.5 R-value**): Model 5760
Multiple Surface Options
Embossed wood grain, microgroove wave pattern and smooth
Steel Backing
For clean, finished interior appearance
Durable Finish
Hot-dipped galvanized steel with two coats of baked-on polyester paint
In-between Section Seals
Seals provide superior resistance to the elements
Bulb-type Bottom Weatherseal
Guards against wind and rain while providing a cushion when closing the door
Warranty:
- 20-year limited warranty on Models 5720
- Limited lifetime warranty on door Models 5740 and Model 5760
Residential garage door and opener system limited warranty
- (when purchased together) – features 3 year on components (see warranty for details)
Garage Door Options
Actual door color may vary slightly from the digital representation above. Not all colors are available on all models and panel designs. Please reach out for one of our experts to help you find the perfect door.

Windows may be arranged vertically or horizontally on the Models 5740 and 5760. Windows must be Clear Short, Clear Long or Narrow. Windows placed in the bottom section of a door must have DSB 1/8″, tempered, or 1/2″ insulated glass.\
All decorative trim windows come standard with double strength glass.
Actual glass may vary from digital rendering. Glass samples are available upon request.
Thermacore Installations
Our Reviews
Showing 4 and 5 star Google reviews
I spoke with a gentleman named Curtis recently. He seemed very knowledgeable and answered the questions I had. I appreciate speaking with someone who seems to care about what they do.
Sarah Smiles
I spoke with a gentleman named Curtis recently. He seemed very knowledgeable and answered the questions I had. I appreciate speaking with someone who seems to care about what they do.
Sarah Smiles
Great responsive service, thank you! Garage door left side spring was broken, both cars were in the garage & we couldn’t open the door. I called at 8AM, they told us someone would be out today, might even come out this morning. At 10AM, I… [ Read More + ]
Great responsive service, thank you! Garage door left side spring was broken, both cars were in the garage & we couldn’t open the door. I called at 8AM, they told us someone would be out today, might even come out this morning. At 10AM, I received a call back they would come out at 10:30AM. Dan, the manager arrived promptly at 10:30, we got our cars out, he replaced the springs, and completed the job in 35 minutes. We were amazed how quickly they came out and fixed the problem. Thanks, Dan! We highly recommend Overhead Door Co. of Grand Rapids. [ Read Less – ]
Andrew Szumski
On Tuesday afternoon, March 17, 2026, a garage door spring broke and we could not lift the door. Both of our cars were stuck in the garage. I called Overhead Door Company and they had a technician, Tony, out to fix the door that afternoon…. [ Read More + ]
On Tuesday afternoon, March 17, 2026, a garage door spring broke and we could not lift the door. Both of our cars were stuck in the garage. I called Overhead Door Company and they had a technician, Tony, out to fix the door that afternoon. He didn’t have the correct spring, but made a temporary fix that allowed us to open and close the door. On Thursday morning March 19, 2026, Tony returned and installed the correct springs. He also took some time to check, clean, and fix the electrical connections to the door. Tony was polite, professional, efficient, and personable. We very much appreciated the timely response and good work that Overhead Door Company provided!Steve and Jackie [ Read Less – ]
Steve Decker
Great responsive service, thank you! Garage door left side spring was broken, both cars were in the garage & we couldn’t open the door. I called at 8AM, they told us someone would be out today, might even come out this morning. At 10AM, I… [ Read More + ]
Great responsive service, thank you! Garage door left side spring was broken, both cars were in the garage & we couldn’t open the door. I called at 8AM, they told us someone would be out today, might even come out this morning. At 10AM, I received a call back they would come out at 10:30AM. Dan, the manager arrived promptly at 10:30, we got our cars out, he replaced the springs, and completed the job in 35 minutes. We were amazed how quickly they came out and fixed the problem. Thanks, Dan! We highly recommend Overhead Door Co. of Grand Rapids. [ Read Less – ]
Andrew Szumski
On Tuesday afternoon, March 17, 2026, a garage door spring broke and we could not lift the door. Both of our cars were stuck in the garage. I called Overhead Door Company and they had a technician, Tony, out to fix the door that afternoon…. [ Read More + ]
On Tuesday afternoon, March 17, 2026, a garage door spring broke and we could not lift the door. Both of our cars were stuck in the garage. I called Overhead Door Company and they had a technician, Tony, out to fix the door that afternoon. He didn’t have the correct spring, but made a temporary fix that allowed us to open and close the door. On Thursday morning March 19, 2026, Tony returned and installed the correct springs. He also took some time to check, clean, and fix the electrical connections to the door. Tony was polite, professional, efficient, and personable. We very much appreciated the timely response and good work that Overhead Door Company provided!Steve and Jackie [ Read Less – ]
Steve Decker
Our double garage door was bent and knocked off the track. Dan from Overhead Door was there within 2 hours on a cold day to repair it without any new parts. Runs quieter than it did before.Thanks for a great job after hours Dan!
Randy VanderVeen
Our double garage door was bent and knocked off the track. Dan from Overhead Door was there within 2 hours on a cold day to repair it without any new parts. Runs quieter than it did before.Thanks for a great job after hours Dan!
Randy VanderVeen
worked with Rusty
Hank Dunnick
Contact Us Today
We’re here to provide you with high-quality doors that align with your needs. If you have any questions, comments, or concerns, please don’t hesitate to get in touch with us.










