New Performance. Existing Openings.

Precision-engineered replacement windows for multifamily, commercial, and historic renovation projects.

Occupied buildings don't stop for window replacements - and neither does INTUS. Our retrofit window systems are engineered to fit existing rough openings, delivering new-construction thermal performance without structural changes, extended downtime, or coordination headaches.

CASE STUDIES

Replacement Windows: The Poplar Case

In retrofit and renovation projects, selecting the right windows can significantly impact the building's performance, sustainability, and occupant comfort. Energy-efficient windows, like those from the INTUS Supera line used in The Poplar Project, are crucial for several reasons. They improve thermal insulation, reducing heat loss in winter and minimizing heat gain in summer. This not only lowers energy consumption and operational costs. It also contributes to a more sustainable environment by decreasing the building's carbon footprint. Moreover, such windows offer enhanced acoustic insulation. This is very important in urban settings where external noise can compromise indoor tranquillity. Learn more about project

Multi-family, Retrofit/Renovation

STC 41 / OITC 33

Double

Supera CW

Ideal for Low to Mid-rise projects

Suitable for multi-family, hospitality, institutional & retrofit projects

High-performance, low cost

Retrofit projects

INTUS Windows done retrofit projects

INTUS has long been at the forefront of the retrofit and replacement window sector, collaborating with major housing authorities and large-scale developers, including NYCHA, BHA, CHA, and many more to help modernize and revitalize existing structures.

The Poplar

Element Hotel by Westin - Bentonville, AR

Edith Johnson Towers Renovation

Comly Commons

MSOE Hermann Viets Tower

The Falls (Buildings A & B)

Bay State Place Renovation

Why Choose INTUS for Your Replacement Windows?

Lower Operational Costs & Maximize ROI

Our energy-efficient aluminum and polymer windows significantly reduce heating and cooling expenses cutting energy costs while improving indoor comfort.

Fast & Reliable Lead Times

Timelines matter. INTUS Windows ensures efficient production and delivery, keeping your retrofit project on schedule and within budget.

Code-Compliant & Performance-Driven

We understand strict building codes in US. Our windows meet and exceed industry standards, ensuring compliance with Passive House, ENERGY STAR and others criteria.

Aesthetic & Structural Versatility

From historic brownstones to commercial high-rises, our replacement windows seamlessly integrate into residential, multifamily, and commercial properties without compromising architectural integrity.

What If You Could Reduce Energy Costs AND Boost Your Building Value?

Let us come to your office, feed you lunch, and build your knowledge base.
Our informative, hour-long Lunch & Learn presentations will earn you one credit/learning unit and are delivered by one of our trained Business Developers. Our team boasts over a dozen Certified Passive House Tradespersons, LEED APs, Construction Documents Technologists, and a Certified Sustainable Building Advisor (cSBA).
Get your fenestration questions answered and stay current with good building practices through INTUS' certified presentations!

Testimonials

Partners, that trust us!

James G. Davis Construction Corporation

It has been a pleasure working with INTUS on the Halley Rise Block F project. Not only is the product state-of-the-art and of high quality, but the aesthetics are far better than traditional aluminum or vinyl windows. Despite reservations of the product coming form Europe, deliveries were timely, replacement arrived exactly when promised, and damage was minimal to non-existent. Customer service from you and your team was outstanding, and every minor issue was dealt with professionally and promptly without confrontation or debate. I wish every subcontractor and vendor was as easy to work with as INTUS. I look forward to working with you again on another successful multi-family project in the near future.

Steve Hawryluk

James G. Davis Construction Corporation / Vice President

Caffes-Steele Windows and Doors

INTUS Windows has quickly become a trusted, valued, and valuable partner. INTUS produces high-quality, high-performance windows which can be used in almost any design -- including window walls. As an alternative to aluminum, the performance and price are superior. Their service is responsive and intelligent. Our interaction with our salesperson, Jeff, is collaborative and we work together to bring the best value to the client. Their lead times are spot-on and the post sales service is top notch as well. We have worked with them on numerous (most large scale) projects thus far, with great success, and look forward to many more in the future. Bottom line, we trust and value INTUS Windows.

Jon Caffes

Caffes-Steele Windows and Doors / President

Callahan Construction Managers 1

We are seeing and installing your windows on more and more projects, and I feel your support throughout the process is industry-leading.

William Gregg LEED AP, CPHB

Callahan Construction Managers / QA/QC Manager

Larson & Darby Group

Thanks for taking the time to share your expertise and these product details with our team today! Presentation was well structured and shared lots of great data – we certainly appreciated the insight and detail on our end.

Jonathan Kaye, Associate AIA

Larson & Darby Group / Architectural Designer

The Narrow Gate Architecture LTD

I enjoyed your presentation today - lots of good information! We’re working on a new construction multifamily Passive House project located western Massachusetts and have identified INTUS Supera windows as the basis of design.

Joseph Lambert

The Narrow Gate Architecture LTD

Gawron Turgeon Dillon Architects, P.C.

I came to the discussion with zero knowledge of the subject, and it was super helpful for future proposals on my end that utilize Passive House.

Zach Vincent

Gawron Turgeon Dillon Architects, P.C. / Marketing Director

Assemble Design Workshop PLLC

We have had great experience with the Intus Revit Design Tool as it enables us to quickly configure multiple window configurations and load those families directly into our Revit model. This allows us to have the confidence in knowing that the window profiles we are showing in our plans, elevations, and 3D views are accurate to the windows we plan to specify. The tool produces high quality families that have the types of flexibility and important detail we need, without being overly detailed so as to slow down the model. We especially appreciate the variable spacing from the edge of the window frame to rough opening and ability to locate the window in and out within the wall assembly.

Chris Emens, RA

Assemble Design Workshop PLLC / Partner