Let us introduce you to new product innovation and technology. Koch’s expertise and experience will add value to your design process.

New Construction

For over three quarters of a century, Koch Corporation has provided Furnish and Install packages consisting of windows, curtainwalls and entrances in new structures including schools, high rise buildings, banks, hospitals, industrial buildings and offices. Our experience can help guide through product selection and assist you in any value engineering needs you may have.


Less than 30 years ago single glazed aluminum curtainwall and non-insulated panels were the state of the art. After years of UV degradation of gaskets, panels and finishes, most curtainwalls can be a detriment to the integrity of the building. Replacing those old curatinwalls eliminates leaks, improves energy performance and enhances the appearance of the building. Whether large or small, unitized or stick, Koch has the experience to handle any curtainwall replacement.

Historical Window Replacement

Some of the best things in life are those that have stood the test of time. Al Koch Corporation we understand the importance of maintaining architectural character that reflects the beauty of historical buildings, yet brings the value of current Green Technology. Utilizing architectural grade windows of various mediums, along with panning systems, muntins, high performance architectural finishes and energy efficient glazing, we can demonstrate how to upgrade your existing window system to maintain the Historical significance of your project. Along with the installation process, lead and asbestos abatement, if necessary, can be performed by Koch’s own certified team.

Blast and Ballistic

Koch Corporation can provide the highly specialized experience needed to install blast and impact windows in any high-risk application, including federal or state governmental and military installations or environmentally threatened buildings. Koch’s extensive experience in both the areas of historical window and security window replacement make us the expert when blast or impact issues threaten a building envelope.

Acoustical Windows and Doors

We have performed sound abatement services in thousands of buildings nationally.

Acoustical rated windows for sound suppression are required everywhere sound is overwhelming. Airport, highway and railway area noise levels deter from the quality of life. Because Koch Corporation is a leading national contractor in the marketplace, Koch regularly participates in the FAA Sound Mitigation Noise Reduction Programs. In addition to window and door replacement, Koch also provides HVAC and insulation services, as well as other sound reduction improvements. Koch can help you reduce noise pollution in any building.