High Performance Windows Designed in the USA and Custom-Made in Europe. Superior Comfort, Efficiency, and Architectural Freedom. Unsurpassed Service.

Delivering unsurpassed performance, uncompromising function and beauty. Providing a team with unparalleled expertise in high performance fenestration.

As a leading North American supplier of Passive House windows, we know the science of performance.

High performance windows mean no drafts, no condensation, and no feeling cold—even right next to big glass. Can you spot which Brooklyn row house sports Zola windows? See how those blue windows contrast with the bright red of the home’s old entry door?

Frequently Asked Questions

  • Shop Drawings: 3–5 weeks from receipt of ther order

  • Production: 18–22 weeks after final sizes and full approvals

*Lead-times can vary depending on job complexity and material requirements

  • Contact Bill Lambert at the Lambert Company / (216) 469-3906, bill@thelambertco.com to review the product application

  • Send a take-off with elevations, quantities, details and links to drawings to Bill Lambert at The Lambert Company / bill@thelambertco.com

*Please copy abigail@thelambertco.com on any request to Hope’s for tech support or pricing so we can check the status and follow up