Durable. Efficient. Virtually Maintenance‑Free.
If you’re looking for high-performance fiberglass windows and doors that thrive in Texas heat, humidity, and storms the Marvin Essential™ Collection is your solution. According to Marvin’s 2024 catalog, the Essential line uses Ultrex® pultruded fiberglass inside and out, proven to be 8× stronger than vinyl and 3× stronger than vinyl/wood composites, making it highly resistant to warping and degradation.
At Showroom Windows & Doors, we expertly install Marvin Essential products in Austin, San Antonio, and nearby cities. These Clean‑lined, energy-efficient windows and doors come factory‑finished with thick, durable coatings that resist fading and weather damage .
Marvin Essential Product Range
-
WINDOWS
Options:
- Single & Double-Hung (standard and cottage)
- Casement & Awning (with large size availability)
- Glider (Sliding)
- Picture & Specialty Shapes, including Round Top
- Fixed Direct-Glaze units for flush glazing
Sizes follow Marvin’s nominal sizing system, simplifying specification and installation.
- Single & Double-Hung (standard and cottage)
-
DOORS
Options:
- Sliding Patio Doors (available in larger sizes per 2024 accessory updates)
- Inswing/Outswing French Doors
All built with full Ultrex frames and energy-efficient glass
- Sliding Patio Doors (available in larger sizes per 2024 accessory updates)
Both windows and doors include structural accessories and sophisticated hardware with weather-tight seals.
Ultrex® fiberglass
durability
Pultruded fiberglass retains shape through temperature extremes (−30°F to 285°F).
AAMA 624-verified
factory finish
Finish is mechanically bonded and up to 3× thicker than typical painted frames, resisting UV fade and chalking.
Thermal
Stability
Similar expansion rate as glass prevents seal leaks and frame distortion.
Streamlined
design
Narrow sightlines and simplified options ease the design process.
Low-maintenance
interior & exterior
Both sides feature fiberglass; no painting, no rot.
ENERGY STAR®
certified
Low-E, dual-pane glass ensures energy savings and comfort.
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