Kolbe Replacement Windows

Kolbe Replacement Windows include the Forgent® Series.

Forgent windows and doors are made of the proprietary Glastra® material.

The Forgent series gives you beautiful style and energy-saving performance.

Learn more with a free, friendly Renaissance replacement window consultation.

Get a Free Kolbe Estimate

Why Should You Choose Kolbe Forgent Windows ? 

  • Kolbe’s Forgent Windows Stand Up to Our Erratic Houston Weather.
  • What are Kolbe Forgent Windows Made Of? 
  • Kolbe’s Forgent® Series is made of Glastra®, a proprietary hybrid of fiberglass and UV stable polymer. It’s formulated for strength + resilience.
  • Faster Order-to-Installation Timeframe

Get Your Free Kolbe Window Replacement Estimate & Window Brand Comparison

Kolbe Windows & Doors: 75 Years For The Visionaries.

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Renaissance Windows & Doors

Showroom in The Houston Design Center

Open Mon – Fri 8:30 – 5:30

Saturdays By Appt. Only

7026 Old Katy Rd Ste 158 (Bldg E)
Houston, TX 77024 Inside The Loop

Kolbe Forgent Windows & Doors Boost Curb Appeal Outside and Comfort Inside

Take a Virtual Kolbe Showroom Tour

picture Kolbe Forgent replacement windows from Renaissance
Kolbe FOrgent Black Exterior Color Windows
Kolbe Forgent Replacement Windows in White


7026 Old Katy Rd Ste 158
Houston, TX 77024
In The Houston Design Center Bldg E

Houston Showroom Hours
Mon - Fri: 8:30 - 5:30
Saturdays By Appointment

Architect, Builder, Contractor, or Designer?

Our Renaissance Trade Consultants in Houston, Austin, and Marble Falls assist architects, builders, contractors and designers.

Save time and frustrations with our plan reviews, latest product development advice, candid lead times, and options for you to consider.

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Get a Friendly, Helpful In-Home Window and Door Evaluation and FREE Custom Detailed Estimate!

  • Get Your Questions Answered
  • Honest Window & Door Advice
  • No High-Pressure Selling!
  • Choose Window Styles, Colors, & the Payment Plan that Fits You!

Call Us! 713-863-9988

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