Local research · updated July 2026
Replacement Windows in Waco, Texas
Waco sits on the Brazos in central Texas — hot summers, hail risk, severe storms, and university/growth demand. Of the city's housing units, 53.9% predate 1980 and the median year built is 1977. McLennan County is ENERGY STAR South-Central / IECC 3A: low SHGC for cooling with enough winter for a real U-factor. Replacement here is cooling loads and storm resilience — not Panhandle cold or Gulf HVHZ.
Short answer
In Waco, a standard replacement window (double-hung, casement or slider) typically costs $520–$2,950 installed. Bay and bow windows run $2,595–$8,290+, and a sliding patio door $1,555–$5,180. Frame material and the glass package decide where a project lands in that range.
Planning ranges built from NREL and BLS cost data, localized to Waco with the BEA Regional Price Parity for Waco, TX (2024). How we estimate →
53.9%
of Waco homes were built before 1980, the era of single-pane and early aluminum windows
Source: U.S. Census Bureau, 2019–2023 ACS 5-Year Estimates
1977
median year built across Waco's 60,256 housing units
Source: U.S. Census Bureau, 2019–2023 ACS 5-Year Estimates
SHGC ≤ 0.23
the ENERGY STAR v7.0 number that matters most in the South-Central zone
Source: EPA ENERGY STAR v7.0
Window installers in Waco
Compare companies serving Waco. Request a free, no-obligation quote and we route it to the company or a vetted local installer.
| Company | Location | Request a quote |
|---|---|---|
 4.8 · 200,000+ reviews | Fort Worth, TX | Get a quote → |
| 1Universal Windows Direct of Central TexasUniversal Windows Direct | Woodway, TX | Get matched → |
| 2Window World of WacoWindow World | Waco, TX | Get matched → |
Renewal by Andersen
4.8 · 200,000+ reviewsFort Worth, TX showroom · serving the Waco metro
Full-service manufacturer and installer, transferable warranty, local crews. Why it's our Top Pick
Get a quote →Listings compiled from manufacturer dealer locators and public business records. Premier and Sponsored Partners pay for placement and are labeled as such; star ratings shown are reported by the partner, with the source and date beside them. See our advertising disclosure. Contacting a company shares your details with it (or a vetted local installer) so it can reach you about your project.
Are you a window company? Claim your listing to take quote requests from Waco homeowners directly.
What drives window decisions in Waco
- South-Central / 3A: U ≤ 0.28, SHGC ≤ 0.23 under ENERGY STAR v7.0.
- Growth and university housing mix: failed dual-pane common on mid- and late-century stock.
- Hail and severe thunderstorms — laminated glass is worth pricing.
- Texas IRA lagging; 25C expired.
Replacement windows & doors by type in Waco
Local cost ranges and South-Central-zone efficiency guidance for each window and door style, specific to Waco homes:
Ranges localized to Waco's cost level: national planning ranges shifted by the BEA Regional Price Parity for Waco, TX (92.6, U.S. = 100; 2024). How we estimate local costs →
Efficiency requirements for Waco's climate
Waco sits in the ENERGY STAR South-Central zone (IECC zone 3A (warm, moist), McLennan County). Under the v7.0 specification, qualifying windows need a U-factor of 0.28 or lower and an SHGC of 0.23 or lower. Cooling-leaning climate: blocking solar heat gain (low SHGC) matters as much as insulation.
Not sure what these numbers mean? Read our plain-English guide to U-factor and SHGC.
What replacement windows cost here
Central Texas pricing is competitive. Compare identical glass packages. Federal 25C is gone. Itemize NFRC numbers and permit.
For a breakdown by frame material and install type, see our full cost guide.
Rebates & incentives in Texas
The federal window tax credit (25C) ended for projects placed in service after December 31, 2025. If your windows were installed in 2025, you can still claim it on your 2025 return — but for new projects there is no federal window credit. State and utility programs are now the main source of window incentives.
Texas accepted IRA rebate funding but program rollout has lagged; check the State Energy Conservation Office for current status before counting on it.
- Utility efficiency programs (Oncor service area). Oncor and other Texas utilities fund weatherization and efficiency incentives through participating contractors; window measures are typically part of whole-home packages. (Oncor / TX utility program pages)
Texas adopts the IECC statewide with amendments; coastal counties add TDI windstorm certification requirements (WPI-8) that affect window product choice and insurance eligibility.
Replacement windows in nearby metros
Not in Waco proper? These nearby markets carry the same local research: housing-age data, climate-zone specs, and current rebate status for each city:
Waco window replacement FAQ
›Do I need a permit to replace windows in Waco?
Usually yes for full replacement. City of Waco Building Inspections. Confirm the installer pulls the permit.
›What efficiency numbers should windows hit?
ENERGY STAR South-Central and IECC 3A: U-factor 0.28 or lower and SHGC 0.23 or lower. Read the NFRC label.
›Are there rebates?
Federal 25C expired December 31, 2025. Texas IRA has lagged; confirm utility offers. Budget without counting on a simple window check.
›Is laminated glass worth it?
Often yes if your neighborhood has taken hail. Ask your insurer. Not a coastal code mandate here.
Sources
- — U.S. Census Bureau, American Community Survey 5-Year Estimates (B25034, B25035)
- — EPA ENERGY STAR Version 7.0 Residential Windows specification
- — DOE/PNNL IECC climate zone assignments by county
- — NWS Fort Worth / Dallas; NOAA Storm Events Database
- — IRS, 25C Energy Efficient Home Improvement Credit (P.L. 119-21)