Rise. Restore. Refine.
Premium Exterior Door Replacements
Make a lasting first impression while securing your home against the elements. Our high-performance, energy-efficient entry and patio door systems are engineered for uncompromising security and built to withstand Montana’s extreme climate swings.
YOUR LOCAL CERTIFIED DOOR INSTALLER
Premium Door Selection for Any Home & Every Budget
Through our authorized partnership with Alside, ProVia, and Windsor, your family benefits from world-class door engineering shipped directly to your home. We cut out middleman markups to deliver high-security construction, advanced thermal insulation, and reinforced frames built for a lifetime of security and comfort.
Premium Doors for any home
Industry Leading Door Replacement Experts in Western Montana
Front Entry Doors
Sliding Patio Doors
French & Hinged Doors
Storm Doors
Multi-Slide & Bi-Fold Doors
ADVANCED VINYL PATIO DOORS
Alside Promenade Sliding Glass Doors
Transform your living space and effortlessly blend your indoor and outdoor environments with Alside’s Promenade sliding patio doors. Precision-built with premium vinyl, these doors deliver smooth operation, uncompromising structural integrity, and exceptional energy efficiency.
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Superior Insulation Available with the innovative ClimaTech PriME glass package to meet the highest ENERGY STAR standards.
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Smooth Operation A precision-engineered tandem roller system ensures your sliding doors open quietly and effortlessly every time.
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Integrated Blinds Select models feature patented, internal mini blinds for convenient, dust-free privacy and light control.
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Enduring Strength Heavy-duty, fusion-welded mainframes and sashes guarantee long-lasting durability without peeling or warping.
UNMATCHED ENTRY & STORM DOORS
ProVia Custom Fiberglass & Steel Doors
Secure your home with ProVia’s industry-leading front entry systems, available in highly durable fiberglass or 20-gauge steel. Whether you desire the authentic texture of real woodgrain or a flawlessly smooth painted finish, ProVia delivers unmatched curb appeal.
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Authentic Woodgrain Fiberglass options perfectly mimic the defined grain of oak, cherry, and mahogany without the risk of rotting or warping.
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Maximum Security Solid steel and fiberglass construction provides superior structural strength and unparalleled home protection.
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Energy Efficient The ComforTech™ Warm Edge Glazing System drastically reduces heat transfer to lower your utility bills.
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Lasting Durability Highly resistant to denting and scratching, ensuring your entryway requires virtually no maintenance over its lifetime.
UPGRADE YOUR DOORS & PAY NOTHING UNTIL 2028
Take 20% OFF Your
New Doors
With No Payments & No Interest Until 2028*
Contact us today to start your home's transformation.
Don't let a door replacement project break the bank! Ask our experts about your flexible financing options and available government incentives.
*Discount valid until the end of the month. The financing offer is valid upon credit approval.
ARCHITECTURAL PATIO SYSTEMS
Windsor Multi-Slide & Bi-Fold Doors
Bring the splendor of the outdoors inside with Windsor’s premium bi-fold and multi-slide patio doors.Designed to create wide-open, breathtaking entryways, these architectural systems can span massive openings while offering narrow stiles that maximize your glass viewing area.
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Expansive Views Narrow panel designs reveal more glass, allowing for inspiring, unobstructed views from floor to ceiling.
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Advanced Hardware Robust hardware and hinge systems provide absolute stability and remarkably smooth operation even on the largest door panels.
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Secure Locking Multi-point locking systems feature heavy-duty mechanisms to provide your family with uncompromised security and peace of mind.
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Seamless Integration Pocket multi-slide systems can be designed to disappear completely into your wall cavity when fully opened.
A Turnkey Investment
The Fenix Exteriors Door Replacement Process
High-performance doors are only as effective as the craftsmanship behind their installation. Our proven, worry-free replacement process ensures your entryway is protected from drafts, moisture, and security threats from day one. Relax while our family-owned team handles the heavy lifting to deliver a flawless, secure, and energy-efficient upgrade.
Consultation & Measurement
On-site inspection, precise rough opening measurements, and permit processing if required.
Removal & Prep
Old door removal, flashing & structural plywood health check.
Weatherproofing
Application of premium flashing, specialized sill pans, and robust sealants to completely block moisture.
Door Installation
Factory-certified, master installation of your new high-security, energy-efficient door system.
Cleanup & Walkthrough
Meticulous debris removal, thorough hardware and lock testing, and a final project walkthrough.
Where Quality Meets Reliability
Why Homeowners Choose Fenix Exteriors
"Jake did a wonderful job of installing our new siding. He's very particular and detailed in his work, which we really appreciated."
Bev Butler
"The Fenix crew was prompt and professional. Our windows were ready for installation ahead of schedule. The day of our installation was smooth and faster than expected. Everything looked perfect, and they cleaned up after themselves. We couldn't be happier"
Jill Pendleton
"Jake and his crew were fantastic. The end product of our new windows exceeded our expectations, and the crew left things better than when they arrived. They were friendly and courteous, answering every question we had. Will definitely use them again for our siding project."
Klint Cleveland
Frequently Asked Questions
Got Door Questions?
We’ve Got You Covered
Planning your window replacement is a big decision. Here are some of the most common questions we get from homeowners across the Western Montana region.
Can fiberglass and steel doors withstand harsh Montana winters?
Absolutely. We install exceptionally durable ProVia fiberglass and steel entry doors that feature a high-density polyurethane core and heavy-duty weatherstripping. They are specifically engineered to resist extreme freezing temperatures, ice, and heavy winds without warping, cracking, or bowing.
How do new patio doors prevent drafts and energy loss?
Our premium sliding and bi-fold patio doors from Alside and Windsor are built with multi-pane, Low-E glass packages and thermally broken frames. Combined with our airtight, master-certified installation, they create an impenetrable seal that keeps cold air out and keeps your heated air inside.
What are the security benefits of your replacement door systems?
Home security is a top priority. Our door lines feature robust, reinforced steel lock blocks and advanced multi-point locking systems. This means your door seals tightly at multiple points along the frame, offering significantly higher resistance to forced entry than standard big-box retail doors.
Do I need to replace the entire door frame or just the door itself?
For the absolute best performance, efficiency, and longevity, we specialize in full-unit replacement. Replacing the entire pre-hung system—including the frame, threshold, and weatherstripping—ensures a perfectly square fit and eliminates hidden rot or leaks in your existing wall structure.
How long does it typically take to install a new entry or patio door?
Most standard front entry doors and single sliding patio doors can be beautifully installed and fully trimmed in just one day. Larger, architectural multi-slide or bi-fold patio door systems may take 1 to 2 days depending on the structural modifications required for the opening.
Do your patio doors come with options for built-in privacy?
Yes! Select patio door models from our manufacturers offer internal mini-blinds enclosed completely between the panes of insulated glass. This provides effortless light control and privacy without ever needing to dust or clean the blinds, and keeps them safe from pets and children.
No Payments & No Interest Until 2028*
Ready to Transform Your Exterior?
Get a thorough, zero-pressure consultation today. Receive a complete structural inspection of your current siding system to spot hidden vulnerabilities before they cause damage.
*The financing offer is valid upon credit approval.
