Energy Efficiency: Keep the Heat In & Bills Down

Avoid these 9 common mistakes when choosing a large bi-fold door system. Learn how to get the perfect fit, color, and configuration for your indoor-outdoor space.

Luxury homes demand more than just beautiful design—they demand precision, performance, and seamless indoor-outdoor living. Homeowners and architects alike are rethinking traditional thick-framed bifold doors in favor of slimmer, stronger, and smarter systems that enhance both aesthetics and functionality.

The custom features that are non-negotiable in a true luxury remodel—and the trends for 2026 that are defining what “luxury” means now.

You envision a home that breathes—a space where light floods the interior, the boundary between inside and outside dissolves, and every day feels like a retreat. The obstacle? Traditional walls and standard doors that confine your space and limit your connection to the outdoors. The solution is an architectural masterpiece in itself: large custom patio doors from AG Millworks. Here are 7 benefits of incorporating large Bifold and Multi-Slide Glass Door Systems into your home's design.

Dreaming of seamless indoor-outdoor living with expansive folding glass patio doors, but worried about energy efficiency and California's strict Title 24 requirements? You're not alone. The good news is: modern energy-efficient folding doors exist! They create stunning, wide-open spaces while significantly reducing your carbon footprint and saving you money on energy bills. Here’s what you need to know to choose the right door for comfort, compliance, and cost savings.

Bi-fold doors have become a popular choice in modern home design due to their unique blend of practicality and style. Interior Designer, Jeff Hines from Cyril Group Design, exemplifies their transformative potential through his work on an early 1900s Mediterranean-style home. Hines remodeled this historic home by incorporating custom bi-fold doors to open up the narrow kitchen.

If you’ve invested in large bi-fold, multi-slide, or french patio doors, you need a screening solution that scales. Consider pairing retractable screen doors with our Pico bi-fold door system for the ultimate slim-frame look. Retractable screen doors—aka accordion screen systems—expand to cover openings up to 32’ wide and tuck away in a slim jamb when not in use. Enjoy unobstructed views, fresh air, and full insect protection without bulky hardware.

As you plan your home remodel and patio door replacement, you might be thinking about your design options. If you currently have a French door or sliding door but want a new, more modern design, there are other patio door styles to consider. You can choose a large patio door system to open your space to the outdoors and create an indoor-outdoor lifestyle. French door alternatives include Bi-Fold and Multi-Slide doors. Below is a breakdown of each patio door style which will help you pick the best door for your home.

The number one reason you should install a Bi-Fold Window into your home is because it is the perfect kitchen passthrough window. Also known as a servery window, it is ideal for indoor-outdoor entertaining. Fold open your windows and serve guests outside on the patio. Pass through food and drinks and use the space as a serve yourself buffet during parties and gatherings.