New windows and doors improve comfort, cut energy bills and add long-term value to your home. Meridian Windows and Doors San Francisco pairs proven product lines with our own installing crews for lasting performance - and a price we put in writing.
Choose your installer
The unit is half the job - the install is the other half. Our own background-checked crews measure, set, seal and insulate every opening, and they know the lines we quote inside and out because they install them every week.
Select the right products
Compare styles, materials and glass packages side by side until the fit is right for your rooms, your budget and your goals. The product-line comparison below is the place to start.
Prepare your home for install
Before install day we walk you through a short checklist - furniture pulled back, treatments down, a clear path to each opening - so install day is watch-it-happen, not scramble.
Compare the Lines We Quote
Every project is priced on the same lines, side by side - the price indicators below are relative, and your consultant shows exact numbers on your actual openings.
PGTThe line homeowners arrive naming - the most impact certifications in the industry$$$
- More impact certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe value pick$$
- Vinyl systems built to strict wind codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Factory-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
VLX 100 Bifold / Folding Door in San Francisco, CA | Meridian Windows and Doors San Francisco
The VLX 100 bifold door is an accordion-style aluminum system that folds panel by panel to open an entire wall. In San Francisco, where Victorian and modern homes alike chase indoor-outdoor living, this door turns a dining room wall into a walkway to a deck, garden, or view corridor. Meridian Windows and Doors San Francisco is an authorized ViewLux installation partner, which means you buy the product through us and get factory-compatible installation in the same transaction. We handle measurements, ordering, and the install itself under one roof. Call (831) 273-7126 for a free on-site measurement and quote anywhere in San Francisco, CA.
Product Overview – VLX 100 Bifold / Folding Door
The VLX 100 is built around one idea: when the panels fold, the wall disappears. Instead of a single swinging leaf, you get a series of aluminum-framed glass panels that stack to one or both sides, leaving up to 20 feet of open span. That kind of opening changes how a San Francisco home lives. A kitchen that opens fully onto a Noe Valley backyard. A top-floor great room in the Mission with a clean line to the skyline. A Marina District renovation where the dining space becomes an outdoor room in ninety seconds.
The frame is aluminum with a 0.098-inch wall thickness, which keeps the structure rigid without turning the door into something heavy and industrial. The profile width measures 2.56 inches, slim enough to read as clean and contemporary, substantial enough to carry multi-panel spans and heavy glass. Buyers choose the VLX 100 over box-store bifolds because the hardware, gaskets, and corner joinery are engineered to the same standard across every panel. When we install this door in San Francisco homes, it runs true on its track for years, without the sag and drag that cheap folding doors develop by season two. Meridian Windows and Doors San Francisco handles the full supply and install, so the product and the craftsmanship stay under one accountability. Call (831) 273-7126 to talk through whether the VLX 100 fits your opening.
Technical Specifications
The VLX 100 Bifold Door is configurable around your opening. Here is what the system offers in raw numbers and options, as installed by Meridian Windows and Doors San Francisco throughout San Francisco, CA.
- Frame wall thickness: 0.098″ extruded aluminum
- Frame profile width: 2.56″
- Maximum clear span: up to 20 feet wide
- Panel configurations: 2-panel, 3-panel, 4-panel, 5-panel, or 6-panel tracks
- Glass types: Clear, Low-E, Tempered, Laminated, Gray Tint, Black Tint
- Finish colors: Premium Black, Pure White, Anodized Silver, Bronze, Champagne, Teak Wood
- Screen options: Retractable Screen or none
- Performance compliance: NFRC-rated thermal break, AAMA 2400/2410 installation standard, AAMA 812 low-expansion foam perimeter sealant
For openings wider than 20 feet, we will talk you toward a multi-system layout or a different panel strategy before you overpay. Call (831) 273-7126 and we will walk your dimensions on the phone in ten minutes.
Performance Features
Thermal Efficiency – The VLX 100 frame uses thermal break technology that separates interior and exterior aluminum faces, cutting conductive heat loss. In San Francisco’s fog-cooled summers and damp winters, an NFRC-rated thermal break means the floor near the door stays comfortable and the glass does less condensation work.
Acoustic Performance – A multi-panel door leaks sound through gasps in cheap systems. The VLX 100 uses interlocking panel stiles and continuous gaskets that reduce street noise, which matters on busy San Francisco corridors like Van Ness, Geary, or 19th Avenue. Laminated glass is available if you need real acoustic separation.
Airtightness & Weather Seal – Every perimeter joint gets AAMA 812 low-expansion foam sealant, and the panel-to-panel joints use compression gaskets rather than felt or brush only. That means less draft at the sill and fewer fog-city mornings with a damp floor line at the door track.
Waterproofing – The sill and frame design channels water downward and outward before it reaches the interior. Combined with proper flashing at installation, the VLX 100 handles San Francisco’s horizontal wind-driven rain without pooling at the threshold. Our installers water-test every opening before we call the project done.
Wind Resistance – Wind-load ratings are matched to local climate requirements at the parcel level. A house on a hillcrest in Twin Peaks or facing the ocean in the Outer Sunset needs a different wind spec than a sheltered lot in Glen Park. We verify the rating before ordering.
Security & Hardware – Multi-point locking is standard on the lead panel, and the hinges and carriers are stainless steel or coated aluminum, sized for the panel count. Impact-resistant laminated glass is available as an upgrade for San Francisco homeowners who want a stronger barrier against forced entry and flying debris.
Color & Glass Options
The VLX 100 comes in six finishes, and the right one depends on the house. Premium Black and Pure White suit the angular modern builds and loft renovations you see across San Francisco’s SoMa and Potrero Hill. Anodized Silver and Champagne read as architectural and clean, working well on mid-century homes in the Sunset and Richmond districts. Bronze fits the darker trim and wood-sash Victorian stock in the Haight and Pacific Heights. Teak Wood is a wood-grain aluminum finish that gives the warmth of timber without the rot, a practical choice for a city with real fog and salt air.
On glass, Clear maximizes the view. Low-E improves energy performance and keeps UV from fading furniture. Tempered is standard for safety in doors. Laminated adds impact resistance and noise reduction. Gray Tint and Black Tint cut glare on full-sun exposures, which matters on west-facing walls in the Inner Sunset or the Castro. Retractable screens keep the opening usable on warm evenings without a permanent screen frame in the sightline. Meridian Windows and Doors San Francisco will bring finish and glass samples to your San Francisco home before you commit.
Installation by Meridian Windows and Doors San Francisco in San Francisco
A bifold door only performs as well as its install. The VLX 100 is an engineered system, and if it is not set level, plumb, and square, the panels bind, the track sags, and the manufacturer warranty is void. This is where authorized installation matters. Meridian Windows and Doors San Francisco installs VLX 100 doors to the AAMA 2400/2410 installation standard, which is the industry benchmark for window and door field installation.
Our process starts with a pre-install inspection of the rough opening. We check the header, the floor plane, and the waterproofing condition before we order the door. In San Francisco, that inspection catches problems common to older construction: out-of-level floors in Victorians, settling around bay windows, dry rot hidden behind stucco in Richmond and Sunset homes. Then we set the frame level, plumb, and square, shimming as needed. The perimeter gets AAMA 812 low-expansion foam sealant on every joint, not just the visible ones. Flashing is lapped so water drains out, not in. After the panels are hung and adjusted, we run a water test on the sill and threshold, fix anything that shows, and clean the work area down to the last screw.
San Francisco’s building code, damp microclimates, and older housing stock make sloppy installation expensive. A door that leaks in a January storm or binds when the house settles will cost more to fix than the original install. We would rather do it once. Call (831) 273-7126 to schedule a pre-install inspection anywhere in San Francisco, CA.
Frequently Asked Questions – VLX 100 Bifold / Folding Door
Lead time for a VLX 100 Bifold Door typically runs 6 to 10 weeks from finalized order to delivery at our San Francisco shop, depending on glass type, finish, and panel count. Custom sizes and laminated glass add time. We recommend starting the measurement at least 4 weeks before you want the wall open. Call (831) 273-7126 and we will give you a current lead-time estimate for your exact configuration.
The door itself may qualify for federal energy tax credits if the Low-E glass package meets the current ENERGY STAR criteria for the climate zone covering San Francisco, CA. Qualification depends on the exact glass and frame combination you select. We can pull the NFRC rating for your configuration and tell you what, if anything, qualifies before you order. Call (831) 273-7126 and we will check it for your project.
ViewLux provides a limited warranty on the VLX 100 frame components, and Meridian Windows and Doors San Francisco stands behind our installation workmanship separately. The critical detail is that the manufacturer warranty applies only when an authorized partner completes the installation to AAMA 2400/2410 standards. Improper installation voids coverage. We are an authorized ViewLux partner, so our installs keep your warranty intact. Call (831) 273-7126 to discuss warranty details for your project.
Yes, within engineering limits. The VLX 100 can be built up to a 20-foot span and in 2-panel through 6-panel configurations, which covers most San Francisco openings. The maximum panel height depends on glass weight and wind load on your specific site. We measure to the quarter-inch, not to a catalog list of stock sizes. Call (831) 273-7126 and we will confirm what your opening can carry.
Keep the bottom track clear of leaves, sand, and debris, which is the number-one cause of roller damage on folded doors. Wipe the frame with mild soap and water twice a year, and avoid abrasive cleaners on any finish. At the coast, so Sunset or Richmond District homes, salt air can build film; rinse those frames a bit more often. The hinges and rollers should be checked by a professional every few years. Call (831) 273-7126 if your VLX 100 ever feels stiff or noisy.
Get a Quote – VLX 100 Bifold / Folding Door in San Francisco
The fastest way to firm up a price is an on-site measurement of your actual opening. We will come out, check the structure and the floor plane, walk through glass, finish, and panel count, and give you a written line-item quote. No change orders after the fact. Call (831) 273-7126 to schedule your free measurement and project consultation with Meridian Windows and Doors San Francisco in San Francisco, CA.
Written by the team at Meridian Windows and Doors San Francisco, authorized ViewLux installation partner serving San Francisco, CA.
Six Reasons Homeowners Choose Meridian Windows and Doors San Francisco
Laminated glass and reinforced frames hold up to wind-driven rain, hail and flying debris, so your openings stay sealed when the weather turns.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Tighter seals and insulated glass even out hot and cold rooms and stop the drafts at the frame.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.
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