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Sullivan Overhead Doors

Garage Door Fundamentals

How much do you know about garage doors? Here, you'll find answers to all your questions and learn which kind of garage door is right for you.

Garage Door Construction
Learn about the three types of garage door construction…and which makes the most sense for your home.

Garage Door Components
Sections. Springs. Track. Hinges. Huh? Learn the basic components that make up a residential garage door system and take the mystery out of how a garage door works.

Energy Efficiency
Is your garage climate controlled? Or do you just want your garage to be cooler in summer and warmer in winter? Learn about the variety of energy saving features available with Raynor garage doors.