With 30 yrs. of combined experience, Mar-Lin Dock & Door offers reliable and affordable, 24 hr. emergency service for any make or model of equipment, and has a complete stock of replacement springs, hinges, rollers and more. An extension of your home. A reflection of your personality, of your individuality. Amarr offers a total of 300+ residential garage door designs to fit your style and complement your home. Our residential garage doors are available in 3 different materials and 3 different constructions for increasing levels of energy efficiency.