Knock On Glass offers the most professional glass and mirror products to the New York City community and beyond.  Locally owned and operated for 10 years, our craftsmen install only the finest products. We take pride in offering customer service that offers a personalized approach, ensuring that your glass or mirror project looks fantastic when we’re finished.

We have the staff and materials to handle any sized project.  From custom shower doors to commercial full glass frameless doors, skylights and storefronts, our team will custom design and install mirrors and glass at your home or business.

Our Glass And Mirror Services Include:

  • Patio and Sliding Glass Doors
  • Bath & Shower Enclosures
  • Wall-to-Wall Mirrors
  • Glass Railings
  • Glass & Aluminum Storefronts
  • Full glass framesless doors & Aluminum Doors
  • Windows
  • Table Tops
  • Backsplashes
  • Skylights
  • Shelves
  • Tempered Glass
  • Laminated Glass
  • Insulated Glass
  • Painted Glass
  • Plate glass installation

We provide service throughout the 5 boroughs of New York City and the surrounding states of NJ, CT & PA for the convenience of our commercial and residential customers.