Discover the Elegance and Performance of Loewen Windows and Doors

When it comes to choosing windows and doors for your building project, quality, durability, and design are paramount. Loewen, a renowned name in premium windows and doors, delivers exceptional solutions that blend timeless craftsmanship with modern performance.

Awning & Casement Windows by Loewen


Loewen’s Awning and Casement windows are engineered to provide superior ventilation, security, and energy efficiency. These windows are designed to open outward, with awning windows hinged at the top and casement windows hinged at the side, allowing for excellent airflow control even during light rain. Their sleek profiles and expansive glass options bring in abundant natural light while maintaining a strong weather-tight seal.


Perfect for both contemporary and traditional architectural styles, Loewen Awning and Casement windows enhance the aesthetic appeal and functionality of any space.


Terrace Doors – Seamless Indoor-Outdoor Living


Loewen Terrace Doors are designed to create stunning transitions between your interior and exterior living spaces. These doors combine elegance with robust construction, featuring expansive glass panels that invite natural light and panoramic views. Engineered for smooth operation and long-lasting durability, Terrace Doors elevate the ambiance of patios, decks, and garden areas.


With customizable design options and superior craftsmanship, they are a perfect choice for homeowners and builders aiming to maximize comfort and style.


Your Window and Door Solution Partner: Mountain States Building Products


For all your window and door needs, Mountain States Building Products is your trusted supplier. We offer a comprehensive selection of Loewen’s premium products, ensuring you have access to superior quality and reliable performance for your next building project.


Contact Mountain States Building Products to explore the full range of Loewen Windows and Doors and elevate your project with outstanding craftsmanship and design.

Transform Your Home with Breathtaking Views: Weather Shield's Multi-Slide Door Collection

18 August 2026
At Mountain States Building Products, we're always on the lookout for innovative solutions that help our customers create beautiful, functional living spaces.

Choosing the Right Windows for Your New Construction Home

18 August 2026
Selecting windows for a new build or major remodel is one of the earliest and most important decisions you'll make.
Loewen Windows Mountain States Building Products Colorado

Inside the Aspen Highlands Project: How Loewen Windows & Doors Elevate Mountain Architecture

22 July 2026
When it comes to luxury mountain homes, every detail matters, and nowhere is that more evident than in the Aspen Highlands residence in Aspen, Colorado. Designed by Bilo Buck Architects and built by Ridge Runner Construction, this breathtaking home is a masterclass in blending natural materials with high-performance bu
Weather Shield Windows VUE Collection Mountain States Building Products Colorado

Sky's the Limit: How Weather Shield's VUE Collection is Redefining Window Design

22 July 2026
When it comes to designing a truly iconic custom home, the difference between ordinary and extraordinary often comes down to one thing - the view. And when the view is the star of the show, your windows and doors need to step back and let nature take center stage. That's exactly what the Weather Shield VUE Collection w

Floor-to-Ceiling Windows: What You Need to Know

15 May 2026
Thinking about adding floor-to-ceiling windows to your home? You're not alone. These tall windows bring in tons of natural light and create a strong connection between your indoor and outdoor spaces. Let's walk through what you should know before making this design choice.

Choosing the Right Windows for Every Room in Your Home

10 April 2026
Selecting the perfect window for each room goes beyond just style - it’s about finding the right balance between functionality and aesthetics tailored to how you live.

Elevate Your Home’s Style and Performance with Weather Shield Windows and Patio Doors

19 January 2026
Weather Shield Windows & PATIO DOORS: Craftsmanship Meets Innovation

Andersen Introduces Triple-Pane Glass Option for 100 Series Windows

18 November 2025
Andersen Windows has expanded its 100 Series lineup by adding a triple-pane glass option.

Introducing the New Double-Hung Window to Andersen’s 100 Series

27 October 2025
Andersen is excited to unveil the newest member of its rapidly expanding 100 Series lineup - the double-hung window. Since its debut in 2008, the Andersen 100 Series has established itself as a cornerstone of the company’s product portfolio, thoughtfully designed to meet the diverse needs of customers. Over the years, Andersen has consistently invested in this product line, expanding its features and capabilities to stay aligned with changing customer preferences and market demands. EVOLUTION OF THE 100 SERIES PRODUCT LINE Click here to watch a video showcasing the evolution of the Andersen 100 Series product line.

Selecting Windows and Doors for Your Building Project: The Perfect Blend of Durability and Design with Loewen

27 August 2025
When embarking on a building project, one of the most critical elements that can define the character, comfort, and efficiency of your building project is your choice of windows and doors. The right selections not only enhance curb appeal but also improve energy performance and foster a seamless connection between indoor and outdoor spaces.