Local research · updated July 2026

Replacement Windows in Hattiesburg, Mississippi

Hattiesburg sits in Mississippi's Pine Belt — University of Southern Mississippi, extreme humidity, inland hurricane exposure (Katrina's inland path), and the February 10, 2013 tornado that damaged large parts of the city. Of the city's housing units, 50.4% predate 1980 and the median year built is 1980. Forrest County is ENERGY STAR Southern / IECC 2A (hot-humid Pine Belt): low SHGC for cooling is the headline. Replacement here is humidity and storm resilience on mixed university and older stock.

Short answer

In Hattiesburg, a standard replacement window (double-hung, casement or slider) typically costs $490–$2,790 installed. Bay and bow windows run $2,455–$7,845+, and a sliding patio door $1,470–$4,900. 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 Hattiesburg with the BEA Regional Price Parity for Hattiesburg, MS (2024). How we estimate →

50.4%

of Hattiesburg 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

1980

median year built across Hattiesburg's 22,941 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 Southern zone

Source: EPA ENERGY STAR v7.0

Window installers in Hattiesburg

Compare companies serving Hattiesburg. Request a free, no-obligation quote and we route it to the company or a vetted local installer.

1Window World of Hattiesburg

Hattiesburg, MS · Window World

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Also serving Hattiesburg: Renewal by Andersen

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Renewal by Andersen

Renewal by Andersen is a national full-service replacement window and door company. We don't list a dedicated Renewal by Andersen showroom in Hattiesburg yet, so rather than point you at an address that isn't there, we confirm coverage when you request a quote, then connect you with Renewal by Andersen or a vetted local installer serving Hattiesburg, Mississippi. Same two-minute questions, no obligation.

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What drives window decisions in Hattiesburg

  • Southern / 2A: U ≤ 0.32, SHGC ≤ 0.23; SHGC owns cooling bills.
  • 2013 tornado and Katrina inland legacy: rebuild and older stock mixed.
  • Extreme humidity cycles IG seals year-round.
  • MS utility pathways; 25C expired.

Replacement windows & doors by type in Hattiesburg

Local cost ranges and Southern-zone efficiency guidance for each window and door style, specific to Hattiesburg homes:

Ranges localized to Hattiesburg's cost level: national planning ranges shifted by the BEA Regional Price Parity for Hattiesburg, MS (87.6, U.S. = 100; 2024). How we estimate local costs →

Efficiency requirements for Hattiesburg's climate

Hattiesburg sits in the ENERGY STAR Southern zone (IECC zone 2A (hot, humid), Forrest County). Under the v7.0 specification, qualifying windows need a U-factor of 0.32 or lower and an SHGC of 0.23 or lower. Cooling-dominated climate: the priority is keeping solar heat out — a low SHGC saves more than an ultra-low U-factor here.

Not sure what these numbers mean? Read our plain-English guide to U-factor and SHGC.

What replacement windows cost here

University-market pricing is competitive. 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 Mississippi

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.

Mississippi's IRA Home Energy Rebates are administered through the Mississippi Development Authority Office of Energy (Energy & Natural Resources). As of mid-2026 consumer-facing HOMES/HEAR pathways were not clearly open for standard single-family window projects — treat status as pending and confirm at mississippi.org / MDA Office of Energy before promising rebate money. Windows would generally fit only inside a whole-home modeled-savings track when programs launch, not as a retail per-window check.

  • Entergy Mississippi / Mississippi Power efficiency programs. Investor-owned utilities in Mississippi run residential efficiency programs that typically emphasize HVAC, weatherization, and equipment rather than a standalone window replacement rebate. Availability and measure lists change — confirm current offers with your electric utility. Do not count on a simple per-window utility check. (Entergy Mississippi; Mississippi Power residential efficiency pages; MDA Office of Energy)

Mississippi has historically had limited statewide residential energy-code stringency relative to many states — confirm the edition enforced by your local building official. Most of the state is IECC climate zone 3A (warm, moist); ENERGY STAR South-Central targets for replacement windows are a U-factor of 0.28 or lower and an SHGC of 0.23 or lower under Version 7.0.

Replacement windows in nearby metros

Not in Hattiesburg proper? These nearby markets carry the same local research: housing-age data, climate-zone specs, and current rebate status for each city:

Hattiesburg window replacement FAQ

›Do I need a permit to replace windows in Hattiesburg?

Usually yes for full replacement. City of Hattiesburg Building Department. Confirm the installer pulls the permit.

›What efficiency numbers should windows hit?

ENERGY STAR Southern and IECC 2A: U-factor 0.32 or lower and SHGC 0.23 or lower. Cooling priority. Read the NFRC label.

›Are there rebates?

Federal 25C expired December 31, 2025. Check Mississippi utility programs and state energy office status.

›Does tornado risk change product choice?

Code minimums still apply, but laminated glass and better anchoring reduce debris damage. Ask for structural ratings on the exact unit.

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 Jackson; NOAA Storm Events Database; NWS Hattiesburg 2013 tornado materials
  • — IRS, 25C Energy Efficient Home Improvement Credit (P.L. 119-21)