Who we are

MLL-Hamburg is your manufacturer for weather protection, sun protection, ventilation of aluminum. The family business in its second generation was founded in 1983 by Peter Müsing. Since 2001 Peter Müsing runs the company together with his son, Sven Müsing. The synergy of both young and old, out of curiosity and experience does it matter that the ideas remain fresh. The company grew from that time 2 employees to 33 employees and grew with 2 production halls of around 1,860 square meters. The company relies on over 30 years of knowledge and longstanding experience in the national and international market. We continue to grow and expand our range of products constantly. MLL HAMBURG offers holistic solutions for your construction project, short production processes and quick delivery times, so that each customer is supported as individual as possible. From planning, to CAD Drawings and manufacturing everything stays in one hand and on a company site.

MLL HAMBURG includes two independent divisions.
The MLL weather protection systems GMBH produces weather protection grilles and ventilation systems. With these products, we support the aeration and venting of premises and contribute to a good indoor climate. They offer protection against direct ingress of rain and the ingress of leaves and birds in exterior openings of ventilation systems. They offer protection from direct ingress of rain and the ingress of leaves and birds in exterior openings of ventilation systems. Our weather protection products are directed to different needs. Our weather protection products are directed to different needs. Therefore, we can offer you individual solution concepts.

The MLL SUN PROTECTION SYSTEMS GMBH offers in the area of building shading, with large aluminum slats, a variety of design forms. Wherever appearance and function should be brought into harmony, we develop constructive creations for example for Architecture, Commercial, Catering and Industry.
Together these firms form the umbrella brand name MLL HAMBURG.

MLL HAMBURG is a pure aluminum processing company and producing large orders as well as smaller orders and special designs. We manufacture for industry, small and medium-sized enterprises and individuals. Every customer is individually looked after by us with attention and kindness - typically Hamburgerisch.

Our values

MLL ventilation grilles or MLL-shadowing systems creates a good and pleasant indoor climate for you. The MLL-facade systems set accents to the exterior facades and thus ensure individuality at the construction project. Our diverse and variable products provide a building benefit and combine creativity and many design options with the necessary technical building Regulations. You are placed in the reaction with MLL products no limits. It is important to us you assist in your creativity and your ideas. For this we develop and design individually new slats for you. The corresponding tool is made to produce the profile thereof – the whole incl. construction planning and technical drawing.

Our products are manufactured and produced exclusively in Hamburg / Germany. We manufacture in handmade with accuracy, precision and a handful of attention to detail. All products are unique and are individually manufactured for you. MLL-HAMBURG is a certified organization in accordance with DIN EN ISO 9001: 2008 and will subjected constant quality controls. Thus we can assure you an constant product quality.

– We call it the MLL-Manufacturer Warranty. –

MLL HAMBURG draws on over 30 years of experience and expertise. We started off small and we are now a company. We started off small and we are now a company. That has a lot to do with our basic attitude.

"We developing us steadily further on, because who cease to become better has ceased to be good."


Our presence around the world