
Most Houston homeowners replacing windows in 2026 should expect $9,000 to $22,000 for a whole-home replacement of 12 to 16 openings, depending on frame material, glass package, and impact rating. Single-window replacement pricing runs $550 to $1,800 per opening. This page breaks down the actual line items, the three things that drive 80 percent of price differences between bids, and what your money buys at each price tier.
- Per-window cost?
- $550 to $950 vinyl, $750 to $1,400 fiberglass, $900 to $1,800 impact-rated.
- Whole-home cost?
- $9,000 to $22,000 for 12 to 16 openings in Houston.
- Energy savings?
- 15 to 30 percent cooling-load reduction over original 1990s windows.
- Tax credit?
- 30 percent up to $600 per year through 2032 (federal).
Cost by frame material
Vinyl. $550 to $950 per opening installed. The market default. Good thermal performance. Color is integral to the frame so scratches do not show. 20 to 25 year service life. Brands: Simonton, Alside, Pella ProLine.
Fiberglass. $750 to $1,400 per opening installed. Strongest dimensional stability of common materials. Premium thermal performance. Paintable. 30 to 50 year service life. Brands: Marvin, Pella Impervia, Andersen 100 Series.
Aluminum. $700 to $1,300 per opening installed. Highest strength, lowest thermal performance. Used primarily for impact-rated commercial and contemporary residential where slim sightlines matter. Always thermally broken in current production.
Wood-clad. $1,200 to $2,500 per opening installed. Wood interior, aluminum or fiberglass exterior. Premium aesthetic. Requires periodic interior finishing maintenance. Brands: Andersen 400 Series, Marvin Elevate, Pella Reserve.
Glass package: where the energy savings come from
Frame material gets discussed but the glass package is where the energy performance lives. Modern dual-pane Low-E argon-filled glass with warm-edge spacers is now standard at every price tier. Triple-pane is available but the ROI in Houston climate is marginal versus dual-pane Low-E (we recommend triple-pane only for noise abatement on busy streets).
Look for these specs on any quote: U-factor 0.30 or lower, SHGC 0.25 or lower (Houston climate zone 2A), Energy Star qualified for South region, warm-edge spacer (not aluminum spacer).
Impact-rated windows and insurance
Hurricane impact-rated windows use laminated glass (two glass panes with a polymer interlayer) that holds together when struck, just like a windshield. They are required for TWIA coverage in coastal counties and qualify for wind-mitigation premium discounts in most Harris County and Fort Bend County policies. The discount typically pays back the impact-rated upcharge in 8 to 12 years, faster on coastal-track policies. Brands: PGT WinGuard, CGI Sentinel, Andersen Stormwatch.
Retrofit vs full-frame installation
Retrofit (insert) installation. New window inserted into the existing frame and trim. Faster (1 to 2 days for whole home), lower cost, no interior or exterior trim work. The right answer when the existing frames are sound and the trim and siding are in good condition.
Full-frame replacement. Existing window and frame removed down to the rough opening. New flashing tape, new window, new exterior trim, new interior casing. Slower (3 to 5 days for whole home), higher cost, but the only correct answer when there is rot at the sill, wind-driven rain leakage, or original installation defects. We inspect every opening on site and recommend the right method per opening.
Tax credits and utility rebates
Federal Energy Efficient Home Improvement Credit: 30 percent of cost up to $600 per year for qualifying Energy Star windows through 2032. CenterPoint Energy and Reliant Energy offer additional rebates on certified replacements (typically $25 to $75 per window). We provide manufacturer documentation, NFRC labels, and the IRS form 5695 prep package at project completion.
Itemized per-opening pricing
Every window priced separately, no whole-home black box.
Energy Star qualified standard
All glass packages meet Energy Star South region minimums.
Retrofit or full-frame
Inspected per opening. We recommend the right method, not the cheapest.
Impact-rated options
PGT WinGuard, CGI Sentinel, Andersen Stormwatch.
Wind-mitigation discount documentation
Manufacturer certifications provided for your insurance carrier.
Tax credit prep package
NFRC labels and IRS 5695 documentation at project close.

