Steel Windows and Doors in San Diego
The Strength and Elegance of Steel Windows
Steel lets a window do more with less. It’s strong enough to support far slimmer frames than wood or aluminum, so you get more glass, sharper sightlines, and a profile that suits a Spanish Colonial home as naturally as a modern build. Today’s thermally broken steel systems also accept insulated glass, which means you get the classic look of steel without the drafts and heat loss of older steel windows.
At 360 Windows & Doors, we help San Diego homeowners, architects, and builders select and install architectural steel windows and doors, made to order for each home and built to last.
Book a Steel Design ConsultationWhy Choose Steel Windows and Doors
Slim Sightlines
Steel can span large openings and divided-lite designs while keeping frames and muntins narrow.
Long-Term Durability
Steel resists warping and holds its shape for decades with proper care.
Timeless Style
From black steel windows in a modern farmhouse to steel French doors in a Mediterranean hillside home, steel suits a wide range of architecture.
Made to Order
Each unit is built by the manufacturer to your project’s specifications, with finishes, glass, and hardware chosen to suit your home’s architecture.
From Framing to Finish, We Handle It All
As a direct distributor, we source steel windows and doors straight from the manufacturer and manage the full scope of work around them, so you don’t need to coordinate multiple trades. Our team handles:
- Structural framing for new or enlarged openings
- Sill pans and specialty waterproofing
- Drywall repair and finishing
- Stucco repair and finishing
You get one team accountable for the entire opening, from the framing behind it to the finished wall around it.
Steel Windows and Doors We Install
Steel’s slim frames make it a natural fit for designs where the frame is part of the look, from true divided lites to tall glass doors. We offer steel in a range of styles, including:
The Steel Brands We Trust
We partner with a carefully selected group of manufacturers, each chosen for performance, warranty coverage, and coastal durability.
Secco Sistemi
Italian-made steel windows and doors with very slim profiles, available in thermally broken systems. A strong fit for historic renovations and luxury new construction.
Forster
Swiss-engineered unico XS steel windows offer exceptionally slim sightlines, with concealed, flush hardware for a clean, refined look. Made from 100% steel with strong thermal and sound insulation, they suit everything from historic renovations to modern homes, lofts, and studios.
You can compare these with our aluminum, wood-clad, and fiberglass lines on our Brands page.
Built for San Diego’s Coastal Climate
Salt air, marine layer, and strong sun are tough on any exterior material, and steel is no exception. That’s why installation matters as much as the product.
Through our partnership with OSI’s waterproofing team and RainBuster, every opening is protected with specialized membranes, high-grade sealants, and stainless steel coastal fasteners. During your consultation, we’ll also walk through finish and coating options based on how close your home sits to the ocean.
We install steel windows and doors throughout San Diego County, including La Jolla, Del Mar, Coronado, Pacific Beach, Poway, Scripps Ranch, Rancho Bernardo, and East County.
How Much Do Steel Windows Cost?
Steel windows and doors are a long-term investment in your home’s architecture. Because every unit is made to order, pricing depends on the details of your design. A good rule of thumb: steel windows typically cost three to four times as much as comparable wood-clad windows. The biggest factors include:
- The manufacturer and product series
- The size and number of openings
- Divided lites and custom configurations
- Glass type, such as low-E, laminated, or acoustic
- Finish, color, and hardware selections
- Installation scope, such as new construction, replacement, or structural changes to an opening
After an in-home consultation, we provide a detailed written estimate with transparent pricing. Financing options are also available with approved credit.
Why San Diego Designers, Homeowners, Builders, and Architects Choose 360 Windows & Doors
Family-owned and locally based in San Diego
Fully licensed, bonded, and insured
Rated 5.0 on Google and Yelp, with an A+ BBB rating
Backed by both manufacturer and labor warranties
Experienced working alongside architects, designers, and builders
Education-first consultations with no high-pressure sales
See finished work in our project gallery, or call us at 619-331-5246.
Schedule Your Free ConsultationFrequently Asked Questions
Are steel windows energy efficient?
Modern steel windows can be. The systems we recommend use thermally broken frames, which separate the interior and exterior steel to reduce heat transfer, and they accept insulated, low-E glass. We can confirm that your selected units meet California’s Title 24 energy requirements before ordering.
Will steel windows rust near the ocean?
Quality steel systems are protected with factory coatings designed for exterior use. Combined with proper waterproofing and simple routine care, they hold up well in coastal homes. We’ll recommend a finish based on your home’s exposure to salt air.
What is the difference between steel and aluminum windows?
Steel is stronger, so it can achieve thinner frames and muntins at the same opening size, and it has a classic, handcrafted look. Aluminum is a great fit for large sliding and multislide doors with minimal frames. We can help you compare both for your project, but we have to say: there’s something special about operating a beautifully crafted steel door or window.
Can steel windows have true divided lites?
Yes. Steel’s strength allows for narrow muntins, which makes it one of the best materials for an authentic divided-lite look. We can also walk you through simulated divided-lite options, which can offer better energy performance.
Do steel windows need more maintenance than aluminum?
Slightly. Aluminum naturally resists corrosion, while steel relies on its protective finish. As long as that finish stays intact, steel windows and doors need very little upkeep.
How long does it take to get steel windows and doors?
Steel windows and doors are made to order, so lead times typically run about six months or more. We’ll give you a clear timeline with your estimate, so you can plan around it.
How do I care for steel windows and doors?
Rinse frames periodically to remove salt and dust, keep sills and tracks clean, and check the finish for chips that need touching up. Lubricating hinges and hardware keeps everything operating smoothly.