Napa, CA
Napa’s Premier Provider for the Finest Quality Steel Doors & Windows
For more than 20 years, Portella has provided high-quality custom steel doors and windows in the Napa area. We take pride in delivering world-class products to home and business owners, as well as various boutiques and historical properties in Napa.
When you choose to work with us, we’ll ensure to uphold the highest standards of service and customer satisfaction.
Benefits of Custom Steel Doors
Custom steel doors offer business owners exceptional strength and security. Built to be nearly indestructible, they provide reliable protection for your property, inventory, and staff.
Because steel is one of the most durable materials available, these doors can easily withstand the daily wear and tear of busy commercial environments—especially in areas where large or heavy items are frequently moved in and out. That makes commercial steel doors an ideal choice for high-traffic entrances.
Custom steel doors are also highly energy-efficient thanks to their superior insulation. Portella’s steel doors feature advanced thermal coatings designed for maximum durability and tensile strength, helping to maintain indoor temperatures and reduce heating and cooling costs over time.
Custom Steel Doors & Windows
Portella Announces The Contemporary 3-D Metal Door
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The Thermal Window Difference
A low-e coating on the inside of a window reflects warmth back into the room to reduce thermal loss from the indoors to the outdoors during the cold winter months.
Thermal windows also minimize sound bleedthrough, which allows you to enjoy the room with next to no noise from outside.
Portella Product Lines
Artisan Thermally Broken
Portella’s Artisan Thermally Broken series meets or exceeds energy efficiency requirements. We are the only Custom Steel Doors & Windows manufacturer to include a thermally-bonded zinc application. This ensures your new doors or windows will last even in the harshest conditions.
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Classic
Our Classic series range of Custom Steel Doors & Windows are the perfect complement to contemporary architecture, featuring slender lines and minimalist profiles that let light flood into your home.
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Impact
Portella Steel Doors & Windows have officially passed impact testing for compliance with the Florida Building Code, while also achieving AAMA certification — a rare combination in the steel fenestration industry.
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Portella's Superior Service Guarantee
Your project manager will follow up with you at every turn to ensure that your project stays on budget and on time.
Exceptional communication and customer satisfaction are key components of Portella’s mission, and we go above and beyond to make your project a success.
Performance
Though there is a wide selection of pre-made options to choose from, the Portella team can also provide you with the perfect custom steel doors or windows to fit your needs. Portella’s residential and commercial steel doors and windows come in a variety of styles that are sure to please.
What Makes Us Different?
Custom steel window and door designs built by dedicated craftsmen
44,000 square feet of state-of-the-art manufacturing space
In-house transportation fleet
Steel doors and windows manufactured using a zinc-bonded galvanizing technique method with only 100% recyclable steel that you won’t find anywhere else
Exceeding expectations with industry-standard certifications from the ASTM, NFRC, and AAMA
Frequently Asked Questions
How can I give my home a luxury entrance that lasts for years?
What is the best way to open up my living space?
Is there a way to combine the warmth of natural wood with a bright, open entryway?
Where can I find a single source for high-quality, factory-direct steel openings?
Contact Us Today to Get Your Project Moving.
Doors and windows crafted from our profiles are often the most prominent feature in prestigious luxury homes, historic renovations and boutique commercial spaces.