The Garage Doctor gives you more insulation choices for sectional doors and rolling steel doors – including the highest R-value ratings available in a standard design. You’ll find a full range of design and performance options in commercial sectional and rolling steel doors. With this heavy industrial usage in mind, LiftMaster® has developed a full line of operators that provide the highest levels of strength and durability. We get the job done quickly and at competitive prices. Call us today or use the contact form to the right. Want to read what out past customers have said?