The best selection of doors for your next project.

Mountain States sells doors from the top brands that combine the latest architectural styles with modern advances in energy-efficient technology. Choose from patio doors, interior doors and entrance doors.

We proudly sell these fine manufacturers:

Plastpro Entry Doors

Plastpro offers fiberglass and steel entry door systems to enhance the entryway of any home or building. Their Fiberglass Entry Doors combine the beauty and elegance of wood with the strength and durability of steel. PlastPro Steel Entry Doors provide a low maintenance affordable alternative to traditional wood entryways.

Arcadia Doors

Arcadia sliding and swinging patio doors are versatile with a clean, contemporary appearance, and are available in a variety of styles. They can be customized to enhance the way you frame your outdoor space.

LaCantina Doors

LaCantina is a pioneer in the design and manufacture of large opening door systems. They offer folding, sliding and swinging doors to complement any room. LaCantina Doors systems are not only visually appealing but they are built to perform, even in the most severe climates and regions.

Therma-Tru Doors

Every Therma-Tru door comes with a performance package that is unrivaled in the industry. Their doors increase comfort, are energy efficient, and boost curb appeal. Therma-Tru offers fiberglass and steel entry doors as well as patio doors.

Simpson Doors

Since 1912, Simpson has provided high quality interior and exterior wood doors. Choose from their large selection of doors to match almost any architectural style. Simpson has over twenty high quality wood species to choose from, each with its own distinctive character. Custom wood species are also available.

Western Window Systems Doors

Western Window Systems offers door styles, configurations, and performance features to update any living space. Western Window Systems Series 9500 Bi-Fold Door has been selected as a finalist in the Architizer A+ Awards, a global architectural award program with 90+ categories and over 300 jurors.

Milgard Patio Doors

Milgard’s patio doors operate easily and provide years of trouble-free use. They offer a wide selection of patio doors in vinyl, fiberglass and aluminum. All Milgard patio doors are custom made and come with their industry-leading Full Lifetime Warranty including parts and labor.

Semco Patio Doors

Semco offers both sliding and swinging patio door styles. Their patio doors add functionality and style to your home while letting in large amounts of natural light. Semco makes swinging, sliding and door wall systems.

Cascade Patio Doors

Cascade patio doors offer panoramic doors and stylish, functional sliding glass doors that operate smoothly and benefit from energy saving features. They offer standard patio doors, wide rail patio doors and folding door systems.

Andersen Patio Doors

Andersen has doors to accent any room in your home. Andersen offers hinged, gliding and folding doors to a wide selection of styles and colors.

Loewen Patio Doors

Loewen makes doors that are not only attractive, but also cutting edge in their functionality. Their products offer performance, to keep homes comfortable and energy efficient, and strength to protect against the worst that nature can deliver.

WinDor Doors

WinDor Multi-Slide and Folding Door Solutions Multi-Slide Doors WinDor makes an innovative, durable, low-maintenance multi-slide door system. Their doors are extremely energy efficient with U-Values of .28 or better (366 glass with argon.) Their unique blend of rigid aluminum framing with a long-lasting, low maintenance vinyl capping creates a unique combination not available from other manufacturers. Multi-Slide Door Features: Contemporary styling with simple lines and contours. White uPVC door panels will not peel, rot, or swell. Built to last with little to no maintenance. Thermally enhanced panel design provides increased thermal efficiency. 5/32" to 1 ⅟₄" glazing, allows for a wide range of energy efficient or sound reduction glass options. Internal reinforcement allows up to 8' tall panel heights without additional reinforcement. Integrated multi-point locking system. Door handles available in brushed chrome, black powder coated & white. S...