White building with 3 vinyl P-Tek windows for builders

P-Tek 25 Series Vinyl Windows

Enhanced strength, refined design, and everyday reliability.

The P-Tek 25 Series is engineered with a thicker, more robust frame, providing increased structural strength and a more substantial feel compared to standard vinyl systems. Designed for residential construction and upgrades, it delivers long-term durability with a clean, modern appearance.

With black capstock options available, the 25 Series offers a factory-finished exterior that resists fading while maintaining a consistent, high-end look over time.

Built for homeowners and builders seeking a stronger, more refined window system without stepping into full premium pricing.

Why Choose the 25 Series

Thicker profile for added strength and durability
Black capstock exterior for long-lasting color performance
Ideal for new construction and residential upgrades
Smooth operation with low maintenance requirements
Balanced solution between performance and cost

Designed for long-term reliability, refined elegance, and everyday efficiency—ideal for modern residential projects.

Cross-section of 25 Series window frames

Available Window Colors

White

Black

Capstock

Clay

Grid Options - (customization available)

Marginal

Colonial

Profile Options

Nail Fin

No Fin

Stucco Fin

Key Window Features

Thermofused Window Strength:
3-1/4” profile reinforced with galvanized steel for exceptional stability.
Elegant, Robust Design:
Clean lines and a balanced profile add sophistication to any space.
Energy & Acoustic Insulation:
Built for comfort and efficiency with excellent thermal and sound control.
Corrosion-Resistant:
Non-corrosive, non-deformable materials ensure years of low maintenance.
Smooth Operation:
Dual-roller system provides seamless opening and closing on Slider models.
Versatile Frame Options:
Choose Nailing Fin, Flush Fin, or Masonry Frame to suit any installation.
Custom Grids Between Glass (GBG):
Marginal, Colonial, Top Row, Traditional, Bar, or Line patterns.
Multiple Glass Options:
Double-pane in clear, obscured, Low-E, or tempered configurations.

Window Performance

Profile Depth:

3-1/4” reinforced thermofused frame.

Reinforcement:
Galvanized steel core for enhanced strength and stability.

Thermal Efficiency:
Exceptional insulation with Low-E and double-pane glass.

Sound Reduction:
Acoustic insulation helps reduce exterior noise.

System Compatibility:
Joins seamlessly with other P-Tek window systems for a unified aesthetic.

Engineered and Certified for Real World Performance

Our 25 Series windows are independently tested and certified through NAMI to meet strict structural and performance standards—ensuring long-term durability, weather resistance, and reliability in demanding environments.

SINGLE HUNG

PG30 Rated

✔ Higher wind resistance
✔ Built for durability
✔ Ideal for residential

SLIDER

LC-PG25 Rated

✔ Light commercial strength
✔ Smooth operation
✔ Great for larger openings

PICTURE (Fixed)

PG25 Rated

✔ Maximum structural strength

✔ No moving parts = longer life

✔ Best for large glass areas

What This Means for Your Project

Stronger windows. Better sealing. Proven performance under real-world conditions—built to handle Texas climates and large-scale builds with confidence.