Klassen only carries manufacturers that stand behind their products with non-prorated, transferable warranties. Each one picked for what it does best, led by ProVia, our featured window and door brand.

ProVia's professional-class vinyl replacement window. Multi-chambered, fusion-welded frames paired with the ComforTech™ glazing package, Low-E glass, argon fill, and a warm-edge spacer, for the comfort and efficiency West Texas and Southeast New Mexico homes need. Built one window at a time to your exact openings.
The Endure Series carries a lifetime limited warranty that transfers up to two times to future homeowners, real value at resale. Klassen backs every install with our own labor warranty on the workmanship, held by the original homeowner.
Double-hung, sliding, casement, awning, picture, and bay or bow configurations, in a full range of interior and exterior colors and grid patterns to match your home.

ProVia's premium fiberglass line. Polyurethane-foam core for high thermal efficiency, with realistic wood-grain skin textures and compatibility with sidelites, transoms, and decorative glass packages.
Customization-heavy fiberglass line. Same insulation construction as Embarq, with broader options for panel layouts, decorative glass inserts, and full-light or partial-light door configurations.
ENERGY STAR-certified fiberglass entry door. Available in classic oak-grain and smooth-skin textures, with a polyurethane core for efficient performance in standard residential settings.
Steel entry door line with galvanized skin and polyurethane-foam core. Dent-resistant, available in factory-painted finishes and configurable with full or partial glass inserts.

Klassen installs C.H.I. Overhead Doors exclusively for residential garage door replacement. Their full residential catalog includes raised-panel insulated steel, carriage-house composite, modern flat-panel, and a range of window-row and color combinations.
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ProVia sliding patio doors carry the same ComforTech™ Low-E glass and weather-tight construction as our Endure windows, paired with smooth-rolling, multi-point-locking hardware. Two- and three-panel configurations, a wide range of interior and exterior finishes, and optional internal blinds or grids, all custom-sized to your existing opening.
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Alside's insulated siding line. The 1.5" foam backing adds to wall R-value and improves impact resistance. Wood-grain texture, full UV-stable color palette, lifetime transferable warranty.
Reinforced vinyl siding with the TriBeam® panel-rigidity design, built to resist wind, sag, and warping. Available in a wide color range with a lifetime transferable warranty.
Companion soffit and vertical-siding product to Charter Oak. Hidden aeration openings for attic ventilation and a low-gloss finish that coordinates with Alside's main siding lines.
Beyond windows and doors, we install and replace roofing and seamless gutters for homeowners across West Texas and Southeast New Mexico.
Standing-seam and exposed-fastener metal roofing in long-life finishes, built for West Texas sun, wind, and hail. Durable, low-maintenance, and energy-reflective.
Architectural asphalt shingle roofs in a wide range of colors and profiles, a proven, cost-effective option for full roof replacement and new construction.
Recycled-rubber roofing in slate and shake profiles. Class 4 impact resistance, freeze-thaw stability, and a lifetime limited warranty, the premium tier for homeowners who want the look of slate without the weight.
Custom-formed seamless gutters, measured and run on site so there are no leak-prone seams. A range of colors and optional leaf-protection systems keep water moving away from your foundation through every storm.
A free in-home consultation includes manufacturer brochures, color samples, and a side-by-side spec comparison. Then we quote what you actually want, not what we want to sell.