Steel-Line Garage Doors have been designing and manufacturing residential garage doors for more than 35 years. They have forged a reputation for providing high quality products at excellent value for money.

Marantec is an acronym for Marienfelder Antriebstechnik (lit. “Marienfeld Opener Technology”). Over the past 30 years, Marantec has become a well-known name around the world. Our journey so far has been characterized by openness and collaboration.

We are a young and fast growing garage door manufacturer attributed to our innovative products and efficient service. Our outstanding, highly engineered products are at the forefront of technology and design, providing new garage door styles with our Insulated and Custom ranges of garage doors.


From door openers to automated extras, remotes, keypads and even invisible light beams, Merlin have every product you need to keep your garage safe and secure. Left the garage door open? Don’t worry – we’ve got you covered with Merlin MyQ, the app enabled garage door opener allowing you to control your garage door anytime, anywhere.