Why Zola?

Our Founding Story.

Zola founder and Swiss-trained architect, Florian Speier, describes the unmet needs he witnessed in the American window market when he formed the company in 2011.

"I've been most impressed with our whole Zola experience from sales, ordering and now to delivery and on-site support. Congratulations on assembling such a professional team and making what is typically a complicated and challenging process run so smoothly. As a self-styled 'window aficionado' I can't tell you how happy that makes me."

Bronwyn Barry, One Sky Homes

"Everyone who comes to check the place out is stunned by the lift slide door."

Tim Burke, Olympic Biathlete

"The windows and doors are performing fantastically. The other day I was in the house when it was 10 degrees. The sun was pouring through our south glass and it was a comfy 70 degrees inside with no other heat running."

Tim Burke, Olympic Biathlete

"Zola provides an excellent product and support for the Passive House Community. The best part, they make a daunting process simple. Love the support after installation, this is a sign of a sure winner."

Rick Milburn, Passiv Works

"Working with Zola Windows has been a stunningly positive experience. Zola offers vastly superior service and responsiveness over any other window provider I have worked with. The price is feasible, the windows are stunning, and the performance is everything a Certified Passive House consultant could hope for, not to mention the color options that come standard, it's enough to make an architect's heart sing…"

Tessa Smith, Artisans Group

"We have had a terrific experience with Zola Windows. Our latest Passive House project in Santa Fe, NM called for custom color on all windows with one picture window being exceptionally large. The windows arrived on time, on budget and the client loves the color! We highly recommend Zola's on-site service call. Zola sent an technician and with his expertise the windows and exterior doors were set quickly and passed the Blower Door Test with a 0.4 @ 50 Pascal. We highly recommend the product and the company and look forward to working with them more in the future. In our opinion, the price and performance are unbeatable."

Vahid Mojarrab, Wamo Studio

"We used the Zola ThermoPlus Clad line, because it offers the best performance to price ratio, and the clients love real wood windows. You can see the European craftsmanship, feel how solid they are, and their triple gaskets provide excellent air tightness."

Joaquin Karcher, Zero E Design

"These windows clearly have the engineering, quality, and performance that is far superior to any North American brand we have seen thus far."

Chris Price, Park City Design + Build

"Every person who has seen these windows is utterly dumbstruck that a window could move like that. It will be an easy sell for our future projects."

Chris Price, Park City Design + Build

"We had four issues to contend with on this project while searching for the perfect window – NYC Landmarks approvals, Passive House standards, cost and beauty. Most windows can achieve two out of these four requirements but finding a window that met all proved to be a challenge. Zola was the only one that met the challenge[...]."

Gita Nandan, thread collective

"We love tilt-turn windows! And we are very happy that they are finally getting traction in the states. The versatility of the tilt-turn in is really important, allowing for a wide variety of options for air flow. Clients are not opposed to them – in the past it has been a lack of access to windows that offer this option."

Gita Nandan, thread collective

"The ThermoPlus triple-glazed clad wood [were among my favorite products], for the durable clad exteriors and beautiful wood interiors, the exceptional energy performance, the ability to provide very large sizes, and the competitive pricing."

Jeff Stern, In Situ Architecture

"The tilt-turn windows are the best — they’re versatile and function well for every need. …We love the fact that we can open them to get a breeze without having a window swung into the house. They’re also a point of interest for our guests, many of whom have never seen tilt-turn windows and think it’s a brilliant idea, as do we."

Stephanie Farris, homeowner

"We love our Zola windows…that really is the truth…we cannot buy windows that have this quality for this price made in the States and we think they add great value to the project."

Laura Nettleton, Thoughtful Balance

"I have used tilt turn windows for almost 20 years and I enjoy the air flow that you get through a home by the tilt feature. This provides a wonderful convection air stream and most owners are amazed at the tilt swing option of the doors."

Jarrod Denton, Signum Architecture

"Zola windows are the first windows we’ve ever had that we can sit in front of in the winter and not feel cold, even when it’s -15 degrees outside. Our friends have serious 'window envy' when they see our Zola windows and doors."

Susie Crane, homeowner

"It’s important to have a supplier that responds to issues and changes during installation. The Zola tech support team was always available and offered excellent support even after installation. The windows and doors are beautiful. The hardware is incredible. The Breeze Panel bi-folds for large openings operate with ease."

Rick Robertson, Six Degrees Construction

""I have to say, Zola did a great job on Laura & Robert’s windows and doors. They are very well made, and were exactly as specified for both dimension and function. As you know, their performance is a key reason that their house required - no - heating last winter, and that was a cold one.""

Louis Mackall, Architect

"I had heard of Zola windows before my purchase, and had even seen them in a home, but the beauty and craftsmanship of my new windows is truly beyond my expectations. They are unique in operation, and add a surprising dimension to a home. The [Zola] team is both professional and friendly, and facilitated a seamless purchase and delivery. For a high performance window Zola is the best!"

Jim Nietmann

"Beautiful windows, easy to work with, high quality, pleasure installing them in our wall panel system. Thank you for making the install a quick and easy process! It was great to work with Zola (Marc and Florian!) Easy to ask questions, always quick to respond; even through multiple revisions. We really enjoyed the process, and working with you guys. Thank you!"

Dave Levasseur, Bensonwood

"In 2011 CASL began working with Zola to source windows that would help us meet the rigorous Passive House standards at our project home. The staff at Zola was incredibly generous with their time and expertise and the windows are beautiful! With support from Zola, CASL completed the installation of our windows in April of 2013 and they are a showpiece of the house! They are the first thing people comment on and a highlight of our tour of the home. Students, neighbors and designers collectively 'ahhhh' when we demonstrate the tilt-turn feature and are impressed with how beautiful the wood is. Additionally, the windows perform; they have made the house warm in winter, cooler on hot spring days and unbelievable quiet inside. Thanks to Zola for their generosity and being part of the CASL story!"

Rebecca Seward, University of Oregon-CASL

"We are absolutely in love with the way our windows turned out. It is a joy to visit the site and be inspired by the artistry of the windows. They are the most noticeable feature of the house and serve as functional sculpture, just the way I hoped they would. Thank you for all the help you gave us in the decision-making stage."

Elaine and Ned Griffin, Homeowners

"The essence of the home is the connection between the architecture and the landscape, which allows natural light and fresh air deep into each space. The home's large windows and movable walls facilitate this connection and make it a place where the rhythms of the day are felt and the benefits of natural lighting and natural ventilation minimize the home's environmental impact. The solidity of the windows and doors, made possible by the oak frames and triple pane panels, enhances the durability of the home and give it a permanence that is essential to any notion of sustainability."

Mark Gillem, The Urban Collaborative
Zola Windows’ performance values are in a different class evan than Energy Star windows. The required U-value by Energy Star is typically 0.3 (lower is better). Zola’s best window, the Zola Arctic, boasts a U-Value of 0.09 – meaning it insulates more than three times as well. Even our most economical window, Zola Classic uPVC, reaches a U-value of 0.26, exceeding energy star by more than 10%.
What does this mean for you? Even Zola’s Classic (dual-glazed) lines outperform most domestic triple glazed windows while being clearer, more economical, and offer more design flexibility.
Choosing Zola’s Thermo (triple or quadruple glazed) lines will boost your houses energy efficiency to a completely new level while creating perfect draft-free comfort.

The extremely high performance allows you to be comfortable inside, even with huge glass panes in the middle of winter


quality you can put your hands on

Design Flexibility

With its huge sizes, and matching lift-sliders, doors and windows Zola can offer unmatched design flexibility

Dedicated Project Support

Every project is assigned a dedicated Zola Project Manager, consulting the project architect, engineer and homeowner from conception to realization.


With over 250 completed projects coast to coast, Zola has the experience to make your project great.


Zola offers unmatched value in its class – helping teams realize dreams on budget.

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