VLX 500 Single & Double Hung Window

VLX 500 Single & Double Hung Window in Pasadena, CA | Juniper Windows Pasadena

The VLX 500 Single & Double Hung Window is the classic vertical-glide window, reengineered in aluminum for Pasadena homes that deal with real sun and real temperature swings. Both sashes slide up and down, and both tilt inward so you can clean the exterior glass from inside your living room. Juniper Windows Pasadena is an authorized ViewLux installation partner, which means you get the product warranty backed by an installer who actually knows how this window performs in our climate. Call (626) 657-5977 to check pricing and availability for your Pasadena project.

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Product Overview – VLX 500 Single & Double Hung Window

The VLX 500 is a vertical-glide hung window built on an aluminum frame that doesn’t warp, swell, or rot the way wood and vinyl do after years of Pasadena heat. The design is simple: two sashes stacked vertically, both operable on the double hung version, with a tilt-in mechanism that releases each sash so you can fold it into the room for easy glass cleaning. That tilt feature matters in a city where dust and dry-season grime build up on exterior glass faster than most homeowners expect.

Architecturally, the VLX 500 fits where a sliding window doesn’t. Craftsman bungalows in Bungalow Heaven, mid-century ranches in Hastings Ranch, Spanish colonials in Linda Vista, and new ADUs behind postwar homes all use hung windows because the proportions match traditional Pasadena framing. The double hung version gives you ventilation control from the top sash, the bottom sash, or both. The single hung keeps the top fixed and lets the bottom operate, which some buyers prefer for budget reasons or to reduce moving parts on second-story openings.

What separates this window from older aluminum hung windows is the thermal break in the frame and the precision of the sash hardware. Older aluminum windows from the 1960s and 70s transfer heat through the metal. The VLX 500 interrupts that thermal path, which is why it carries an NFRC-rated performance label. The glass package options, from basic clear to impact-resistant laminated, let you tune the window to the exact exposure of each wall. A west-facing window in San Rafael or the Arroyo Seco corridor needs a different glass treatment than a shaded north window, and our team in Pasadena helps you spec that correctly the first time.

Call (626) 657-5977 to schedule a free site visit and we’ll measure your current openings and show you how the VLX 500 fits your Pasadena home.

Technical Specifications

Here’s the VLX 500 Single & Double Hung in plain numbers, so you can compare it against other windows you’re researching:

• Wall thickness: 0.079 inch aluminum extrusion, stiff enough for large sashes without added reinforcement.
• Profile width: 2.36 inches, which gives the frame enough depth to house double glazing and the thermal break without looking bulky from the street.
• Glass options: Clear, Frosted, Low-E, Tempered, and Laminated. Each changes the window’s energy performance, privacy, or impact resistance.
• Finish options: Premium Black, Pure White, Anodized Silver, Bronze, Champagne, and Teak Wood. Powder-coated and anodized finishes available depending on the color.
• Screen options: Half-screen and full-screen. The half-screen covers only the bottom sash on double hungs; the full-screen covers the entire opening.
• Configuration: Single hung (top sash fixed) or double hung (both sashes operable and tilt-in).
• Compliance: Installed to AAMA 2400/2410 standards by Juniper Windows Pasadena, with AAMA 812 low-expansion foam at every perimeter joint.

Performance Features

Thermal Efficiency. The VLX 500 uses a thermal break between the interior and exterior aluminum surfaces, which is what gives it the NFRC-rated energy performance. That break interrupts the path heat would normally take through the metal. In Pasadena, where summer afternoons routinely cross 95°F on the west side of town, that break is the difference between a window that blocks heat and one that radiates it into the room.

Acoustic Performance. Laminated glass is the option we recommend for Pasadena homes on or near arterial streets like Lake Avenue, Orange Grove Boulevard, or the 210 corridor. The laminate interlayer dampens sound transmission well beyond what standard double glazing does. Even with a standard clear package, the tight perimeter seal keeps more street noise out than old single-pane hung windows.

Airtightness & Weather Seal. Every VLX 500 we install in Pasadena gets an AAMA 812 low-expansion foam sealant applied to the full perimeter. That foam fills the micro-gaps between the window frame and the rough opening, which is where most air leakage happens. The result is a window that holds conditioned air inside during summer, when your AC is working hard.

Waterproofing. The frame design channels water that gets past the sash weatherstripping down through internal weep paths and out the sill. Combined with the AAMA 812 perimeter foam and a properly flashed opening, the VLX 500 handles the occasional heavy rain Pasadena gets during El Niño winters without moisture migrating into the wall cavity.

Wind Resistance. The VLX 500 is wind-load rated for the SoCal climate, including the gusty Santa Ana conditions we get in the fall. The 0.079-inch wall thickness on the extrusion gives the frame the rigidity it needs to resist sash deflection and rattling under sustained wind, which is more than just comfort: a frame that flexes too much loses its seal over time.

Security & Hardware. The sash locks on the VLX 500 are cam-action and mounted flush in the meeting rail. For ground-floor or street-facing windows, we recommend the laminated glass package as an upgrade, which holds together under impact instead of shattering into loose shards. That’s a real upgrade for Pasadena homeowners whose windows face the sidewalk.

Color & Glass Options

The VLX 500 comes in six finishes, and the right one depends on the architecture of your Pasadena home. Pure White reads crisp and clean on the interior of Craftsman and Spanish homes, and matches most existing trim. Premium Black is the strongest modern statement, and works beautifully on mid-century and contemporary remodels you see around Linda Vista and the hills above the Rose Bowl. Anodized Silver is the classic aluminum look; it’s a clean match for mid-century originals and commercial storefront-style openings. Bronze and Champagne both carry a warm metallic tone that sits comfortably on Spanish and Mediterranean homes. Teak Wood is a wood-look finish for homeowners who want the appearance of wood with the long-term durability of aluminum.

On the glass side, Clear is the economical starting point. Frosted adds privacy without blocking light, which works for bathroom windows or side-facing openings close to a neighbor’s property line in dense Pasadena neighborhoods. Low-E is the energy upgrade we recommend most often for south and west exposures, because it cuts solar heat gain while preserving visible light. Tempered is safety glass that crumbles into small pieces rather than sharp shards, and it’s required by code in certain locations like windows near doors or low to the floor. Laminated is the top-tier option: impact resistance, meaningful sound reduction, and improved security in one package.

Installation by Juniper Windows Pasadena in Pasadena

We install every VLX 500 in Pasadena to AAMA 2400/2410 standards, which are the industry benchmark for window installation quality. That’s not a marketing line; it’s a specific, measurable installation protocol covering everything from anchoring the frame to flashing the sill to sealing the rough opening. An authorized product is only as good as the installation, and a sloppy install will void the manufacturer’s warranty on the frame and the glass. This is the single biggest reason to buy the VLX 500 through Juniper Windows Pasadena rather than having a general contractor or handyman put it in.

Our process starts with a pre-install inspection of the opening. We check the rough framing for rot or water damage, we measure the opening at three points in each dimension, and we confirm the existing flashing condition before we order your windows. Pasadena has its share of older frame and stucco homes, and this inspection is where we catch the problems that would otherwise come back as leaks or a window that won’t close flush six months after the install.

On install day, we set each window level, plumb, and square. The diagonal measurements of the frame have to match within an eighth of an inch, and we shim and adjust until they do. Then we seal the full perimeter with AAMA 812 low-expansion foam, which fills the gaps without bowing the frame. That foam is the seal, the insulator, and the air barrier at the window-to-wall connection. We flash the exterior to shed water down and out, never into the wall. After the interior trim goes back on, we run a water test on ground-floor openings and walk you through the operation of every sash, including the tilt-in release.

Pasadena’s climate also shapes how we install. Our dry season means exterior sealants cure fast and predictably. Our heavier winter rain means the flashing and weep system has to actually perform, not just look right. We don’t take shortcuts on either season. Call (626) 657-5977 to talk about your project.

Frequently Asked Questions – VLX 500 Single & Double Hung Window

Get a Quote – VLX 500 Single & Double Hung Window in Pasadena

If you’re replacing old aluminum sliders or single-pane wood hung windows in your Pasadena home, the VLX 500 is the window to compare everything else against. Juniper Windows Pasadena will measure your openings, help you pick the right glass and finish, and give you a written, line-item quote at no charge. Call (626) 657-5977 to schedule your free on-site measurement and project estimate.

Written by the team at Juniper Windows Pasadena, serving Pasadena, CA with premium window installations since 2003.