Curtain walls

Gratec provides custom engineered glass systems and assemblies incorporating both standard components and custom made parts. GRATEC helps designers detail for performance, constructability and value.

Thanks to twenty years of experience in the field of window frames and curtain walls, we are able to satisfy every customer request, providing sophisticated tailor-made design solutions, with an eye to performance requirements.

Anton Griesser layed the foundation stone for what has become today's Griesser Group in the Swiss town of Aadorf in 1882. The traditional company, still at this location today, has put its entire experience into the manufacture of innovative and high-quality products.

Grizzly Glass & Mirror was founded in 1999 by Ben and Terri Schmalzried. Here at Grizzly Glass we believe that creating strong relationships with everyone from general contractors and suppliers to our valued customers is the key to success.

Curtain walling, glass coverings, mullions/transoms curtain walls, ventilated facades and claddings, external coverings: Gualini is capable to realize to the letter every element of covering and exterior characterisation of the building.

Guthrie Glass & Mirror is a woman owned, commercial glazing contractor based in southern New Jersey. It was incorporated in 1986 by Lynn Guthrie and continues to successfully and competitively perform work of the highest quality.

Haley-Greer, Inc. has been a leader in the curtainwall glass and glazing industry for over 35 years. Founded in 1979 by Don Haley and Jim Greer, Haley-Greer, Inc. has grown into one of the largest curtainwall contractors in the United States.

Since 1975, we have been providing glass for new construction sites and residential areas. We specialize in commercial aluminum storefronts. We supply quality, durable glass for frames and doors.

Harmon, Inc. headquartered in Minneapolis, Minnesota, is the leading US curtain wall contractor specializing in design assist and design development projects.

Harris Wall Systems, Inc. is a Charlotte, North Carolina based Glazing Contractor with a 20 year record of partnering with the best manufacturers and subcontractors to deliver quality products to our customers, safely.

Hazlemere Commercial are one of the largest suppliers of architectural aluminium products in the South of England. We have built an excellent reputation over 4 decades for designing and manufacturing quality aluminium windows, doors, and curtain walling for the commercial sector.

HELLA has been developing and producing sun and weather protection systems since 1959. The manufacturing plant as well as the head office are located in Abfaltersbach/East Tyrol, Austria.

heroal, one of the leading aluminium system specialists, develops and produces systems that are matched to each other for windows and doors, curtain walls, roller shutters, roller doors and sun protection. heroal systems are setting standards in innovation and quality.

Since C.H. Hershocks started the company as a building supply store in 1935, Hershocks has aspired to operate under the core values of safety, quality, integrity, family and community.

Herzog Glass entered the commercial glass industry in 1964. Herzog quickly became a leader in the industry due to its experienced team of glaziers, proven capabilities and ability to complete work on time and on budget.