VLX 100 Double Swing / French Door

VLX 100 Double Swing / French Door in San Francisco, CA | Meridian Windows and Doors San Francisco

The VLX 100 Double Swing door is a paired aluminum French door system built for San Francisco homes that want wide, unobstructed openings without sacrificing thermal performance or weather protection. It’s the product we recommend most often for Victorian flats in Noe Valley opening onto a rear yard, modern remodels in the Mission with a roof deck, and Pacific Heights interiors where natural light drives the design. Meridian Windows and Doors San Francisco is an authorized ViewLux installation partner, which means every VLX 100 we sell is installed to the manufacturer’s published specification. If you’re pricing a French door replacement or planning a new opening, call (831) 273-7126 and we’ll put together a written quote for your exact configuration.

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Product Overview – VLX 100 Double Swing / French Door

The VLX 100 Double Swing is what most people picture when they say “French door”: two door panels that meet in the center and swing open from the jambs. What sets this product apart from wood or vinyl alternatives is the aluminum frame. Aluminum lets the manufacturer run a slimmer profile than wood, which means more glass and less frame. On a paired door, that slimness shows up as symmetrical sightlines: the left and right panels read as mirror images, with a clean vertical meeting stile down the middle instead of a bulky center post. That symmetry is the main aesthetic reason San Francisco buyers choose this door over a single panel with a sidelight, it simply looks more intentional.

The flush threshold is another detail that matters more in practice than in photos. On older San Francisco homes, exterior door thresholds tend to be raised two or three inches, which creates a trip hazard and makes moving furniture miserable. The VLX 100’s flush threshold sits nearly level with the finished floor, so a stroller rolls through without catching and a wheeled walker clears it without being lifted. We still recommend a small interior floor transition for drainage, but the difference in daily use is significant.

The multi-point lock hardware is the third pillar of this product. Instead of a single latch at the center, the VLX 100 engages locking points at the top, bottom, and center of the passive panel, then the active panel locks into the passive. The result is a tighter seal when locked and a much harder target for forced entry than a standard single-point French door. For San Francisco ground-level units in the Richmond or Sunset, this matters.

Who is this door for? Anyone replacing an old wood French door that has warped in the fog belt, anyone adding a wide opening in a remodel, and anyone who wants a door that will not swell, rot, or need repainting every four years. Aluminum does not absorb moisture the way wood does, which is a genuine advantage in a city where the marine layer rolls in 200 nights a year.

Technical Specifications

Here are the numbers that define the VLX 100 Double Swing. We present them plainly because when you’re comparing doors across brands, these are the values that tell you whether a product is a serious window-wall system or a lightweight residential door dressed up to look like one.

• Wall thickness: 0.098″ aluminum extrusion. This is not a thin residential profile. At nearly a tenth of an inch, the frame resists racking and flex when both panels are open and the wind is pushing against the doors.
• Profile width: 2.56″. Narrow enough to keep sightlines clean, wide enough to house a thermal break and multi-point hardware.
• Maximum span: Up to 96″ wide combined opening. That’s enough for an eight-foot opening, which covers most San Francisco remodel scenarios without requiring a steel header.
• Glass options: Clear, Frosted, Obscure, Low-E, Tempered, Laminated. More on these below.
• Finish options: Premium Black, Pure White, Anodized Silver, Bronze, Champagne, Teak Wood. Factory-applied finishes, not field-painted.
• Screen options: Retractable screen or none. For San Francisco, where fly season is modest, many buyers skip screens entirely. Bedroom egress doors sometimes benefit from a retractable screen for ventilation without losing the clean look when closed.
• Installation standard: AAMA 2400/2410 compliant, with AAMA 812 low-expansion foam on every perimeter joint.

Performance Features

Thermal Efficiency – The VLX 100 uses thermal break technology: a non-conductive barrier inside the aluminum extrusion that interrupts heat transfer between the exterior and interior faces of the frame. The result is an NFRC-rated window and door product, not just a structural aluminum frame. With Low-E glass specified, you’ll feel the difference immediately in a fog-cooled Sunset District living room or a sun-blasted Potrero Hill south wall.

Acoustic Performance – Double swing doors are typically the loudest part of the wall assembly because of the center meeting stile. The VLX 100 addresses this with a compression gasket at the meeting point and a solid interlock between panels. Laminated glass adds a real sound-control layer, which we recommend for any San Francisco door facing a busy corridor like Geary, 19th Avenue, or Dolores.

Airtightness and Weather Seal – Every joint in the VLX 100 frame carries a factory weatherstrip: jambs, head, sill, and the center meeting line. When the multi-point lock engages, it pulls the panels into compression against the seals. The practical effect is that a properly installed VLX 100 does not whistle when the wind comes off Twin Peaks.

Waterproofing – The sill design drains water outward and away from the interior floor, and the perimeter of the installed frame is sealed with AAMA 812 low-expansion foam. This combination does two things: it stops exterior moisture from migrating into the wall cavity, and it stops fog-belt condensation from finding a path inside. The result is mist prevention on the interior glass surface at the frame edge, a specific complaint we hear often from owners of older aluminum doors in San Francisco.

Wind Resistance – The VLX 100 is wind-load rated for Northern California coastal exposure. San Francisco sits in a unique microclimate: the wind accelerates through the Golden Gate, funnels over the hills, and hits building facades hard enough that flimsy doors rattle constantly. This door is rated for that. The 0.098″ wall thickness and 2.56″ profile depth give the frame the rigidity it needs to hold its shape when both leaves are closed and the wind is pushing against a 96-inch-wide panel assembly.

Security and Hardware – The multi-point lock is the headline feature. It locks at three points along the passive panel and ties the active panel into the passive with a secure latch. San Francisco homeowners in ground-floor units or street-facing lots consistently tell us that the multi-point hardware was the deciding factor when upgrading from a single-latch wood door. The aluminum frame also stands up to forced-entry attempts better than a hollow-core or warped wood door.

Color and Glass Options

The VLX 100 comes in six factory finishes. Premium Black is the strongest seller right now among San Francisco modern and contemporary remodels; it reads crisp against white stucco and pairs well with the black window frames we see all over Noe Valley and Bernal Heights. Pure White suits the classic Victorian and Edwardian facades, where a white door frame disappears into white trim. Anodized Silver has been the standard commercial and mid-century look for decades and still makes sense on a Marina District building from the 1950s or 60s. Bronze and Champagne are warmer than the standard anodized silver; Bronze tends to pair with darker masonry and Craftsman-style interiors, while Champagne has a warmer tone that works with oak floors and brass hardware. Teak Wood is a specialty finish that mimics the look of stained wood grain directly on the aluminum, which we specify most often for clients who want the aesthetic of wood French doors with none of the maintenance.

Glass selection depends on the location. Clear is the default for views and maximum light transmission. Frosted and Obscure are privacy options for doors that face a shared walkway or a neighbor’s window, common in San Francisco’s dense row-house fabric. Low-E glass is the energy answer: it blocks infrared heat from entering on warm days and helps retain indoor heat when the fog is in. Tempered glass is safety glass that shatters into small cubes instead of large shards, and it is a building-code requirement for most door panels. Laminated glass is the one we recommend most to San Francisco buyers because it holds together when broken, which means security and sound control in one specification.

Installation by Meridian Windows and Doors San Francisco in San Francisco

An aluminum French door is only as good as its installation. The VLX 100 is a manufactured product with tight tolerances, and the factory warranty assumes the installer set the frame correctly. We install every VLX 100 Double Swing in San Francisco to AAMA 2400/2410, which is the recognized standard for storefront and residential window and door installation. What that means in practice is simple: the opening gets measured twice, the frame is set level, plumb, and square in all three planes, and the perimeter joints are sealed with AAMA 812 low-expansion foam before any trim goes on. Without level and plumb, the doors will not close properly and the multi-point lock will not engage. Without the perimeter seal, the thermal break does not matter because outside air simply bypasses the frame.

Our process starts with a pre-install inspection of the rough opening. In San Francisco, we see a lot of openings that were originally framed for wood doors, with headers that have settled or jambs that are out of square by half an inch. We address those issues before setting the frame, not after. Once the frame is in and shimmed, we foam the perimeter, install the panels, adjust the hardware, and run a water test on the sill and lower corners. Then we clean up. The job is not complete until you can open both panels from the inside without resistance and lock them from the outside without forcing anything.

San Francisco has specific building considerations. Many of the city’s remodels fall under local energy codes, which means your door package needs a documented U-factor and solar heat gain coefficient, both of which the VLX 100 can provide via NFRC rating. On hilltop sites with wind exposure, we verify the door’s wind-load rating against the building’s elevation and orientation. And because much of the city’s housing stock is older, we plan for out-of-square openings and uneven floor heights before the door ever arrives.

Improper installation voids the manufacturer warranty. We say that directly because we have repaired enough VLX 100 doors that were “professionally installed” by a general contractor’s crew to know the difference between a crew that handles windows occasionally and a team that installs aluminum door systems every week. Meridian Windows and Doors San Francisco is an authorized ViewLux partner, and that matters when a warranty claim is on the table.

Frequently Asked Questions – VLX 100 Double Swing / French Door

What is the lead time for the VLX 100 Double Swing / French Door?
The VLX 100 Double Swing typically takes 4 to 6 weeks from order confirmation to delivery at our San Francisco shop. Custom sizes, specialty glass, and certain finish colors can add 1 to 2 weeks. We give you a firm delivery window when you place the order, not an estimate. Call (831) 273-7126 to check current lead times for your configuration.

Does the VLX 100 qualify for energy tax credits?
Whether the VLX 100 qualifies depends on the glass package you choose and the current tax year’s program thresholds. Low-E glass configurations with the correct U-factor and solar heat gain coefficient generally align with federal and California energy-efficiency programs, but we cannot guarantee a credit without reviewing your specific specification. We’ll help you select a glass package that hits the numbers if energy incentives are part of your budget planning.

What warranty comes with the Double Swing / French Door?
ViewLux provides a manufacturer warranty on the VLX 100 frame, finish, glass, and hardware, with coverage details varying by component. Meridian Windows and Doors San Francisco installs every door to the manufacturer’s installation requirements so the warranty remains intact. We also stand behind our own installation workmanship in San Francisco and will address any install-related issue directly.

Can I customize the size of the VLX 100 Double Swing?
Yes, the VLX 100 is fabricated to order within its structural limits. The maximum combined span is 96 inches wide, and panel heights can be specified to match your existing opening or new construction framing. We will not build a door wider than the product’s engineering allows, even if the rough opening is bigger, because doing so would compromise wind-load performance and void the warranty. Call (831) 273-7126 and we’ll measure your opening and give you the exact maximum size for your situation.

How do I maintain aluminum frames on the VLX 100 Double Swing in San Francisco’s climate?
Aluminum frames need minimal maintenance compared to wood. In San Francisco, we recommend cleaning the tracks, sill channels, and weatherstrips twice a year to remove salt air, dust, and fog-belt grime. Use mild soap and water on the finish, never abrasive cleaners. Lubricate the multi-point lock mechanism and hinges annually with a dry silicone spray. The factory finishes on the VLX 100 are powder coat or anodized, so they will not need repainting in normal residential use.

Get a Quote – VLX 100 Double Swing / French Door in San Francisco

If you’re planning a French door replacement, a remodel opening, or a new construction project in San Francisco, we’ll get you a written line-item quote with exact pricing, lead time, and installation schedule. Call Meridian Windows and Doors San Francisco at (831) 273-7126 to schedule a free on-site measurement, or send us your rough dimensions and we’ll work up preliminary numbers before we visit.

Written by the team at Meridian Windows and Doors San Francisco, serving San Francisco, CA.