Local research · updated July 2026
Replacement Windows in Wilmington, North Carolina
Wilmington sits on the Cape Fear coast — hurricanes, wind-borne debris rules, salt air, and a historic downtown that can constrain street-facing products. Of the city's housing units, 38.4% predate 1980 and the median year built is 1988. Hurricane Florence in 2018 produced catastrophic flooding across the region. New Hanover County is ENERGY STAR South-Central / IECC 3A with coastal wind overlays: low SHGC for humidity plus impact or shutters where maps require them. Covered from RBA Central NC. Replacement here is storm protection and moisture — order after historic review when it applies.
Short answer
In Wilmington, a standard replacement window (double-hung, casement or slider) typically costs $540–$3,070 installed. Bay and bow windows run $2,700–$8,635+, and a sliding patio door $1,620–$5,395. 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 Wilmington with the BEA Regional Price Parity for Wilmington, NC (2024). How we estimate →
38.4%
of Wilmington 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
1988
median year built across Wilmington's 61,188 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 Wilmington
Compare companies serving Wilmington. 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 | Wilmington, NC | Get a quote → |
| 1Pella Windows and Doors Showroom of Wilmington, NCPella | Wilmington, NC | Get matched → |
| 2Wallaby Windows of Coastal CarolinaWallaby Windows | Wilmington, NC | Get matched → |
| 3Window World of the Port CityWindow World | Leland, NC | Get matched → |
Renewal by Andersen
4.8 · 200,000+ reviewsWilmington, NC showroom · serving the Wilmington 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 Wilmington homeowners directly.
What drives window decisions in Wilmington
- South-Central / 3A plus coastal wind: U ≤ 0.28, SHGC ≤ 0.23; confirm WBDR/impact requirements by parcel.
- Hurricane Florence 2018 flooding is a defining local disaster — water management at openings matters.
- Salt air and historic district rules on visible elevations.
- Duke / Energy Saver NC with strings; 25C expired; insurance wind-mitigation can matter.
Replacement windows & doors by type in Wilmington
Local cost ranges and South-Central-zone efficiency guidance for each window and door style, specific to Wilmington homes:
Ranges localized to Wilmington's cost level: national planning ranges shifted by the BEA Regional Price Parity for Wilmington, NC (96.4, U.S. = 100; 2024). How we estimate local costs →
Efficiency requirements for Wilmington's climate
Wilmington sits in the ENERGY STAR South-Central zone (IECC zone 3A (warm, moist), New Hanover 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
Coastal impact packages and historic-compatible products raise costs above inland NC. Itemize product approval, historic review, labor, and permit. Federal 25C is gone. Payback is storm resilience and cooling savings.
For a breakdown by frame material and install type, see our full cost guide.
Rebates & incentives in North Carolina
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.
North Carolina's Energy Saver NC program (run by the DEQ State Energy Office) launched in January 2025 and became available in all 100 counties by early 2026, offering both HEAR and Home Efficiency (HOMES) rebates. Windows fit under the whole-home efficiency track, where rebates scale with income and projected energy savings. Confirm current availability first.
- Duke Energy Smart $aver window rebates. Duke Energy offers one of the few dedicated window replacement rebates in the country for Carolinas customers — but with real strings: the home must have electric heating (heat pump, electric furnace, or radiant electric), work must be done by a participating contractor, only complete replacements with air sealing qualify, and gas-heated homes, north-facing windows, and patio doors are excluded. Confirm current amounts and terms. (Duke-Energy.com Smart $aver windows page)
- Duke Energy Home Energy House Call. A free in-home energy assessment for Duke customers that documents where a home loses energy — a practical first step for homeowners weighing window replacement against other efficiency upgrades. (Duke-Energy.com residential program pages)
North Carolina's legislature froze residential energy code updates in 2023, leaving standards roughly equivalent to the 2009 IECC in place into the 2030s — so code minimums for replacement windows are comparatively lax, and efficient windows are a homeowner choice rather than a permitting requirement.
Replacement windows in nearby metros
Not in Wilmington proper? These nearby markets carry the same local research: housing-age data, climate-zone specs, and current rebate status for each city:
Wilmington window replacement FAQ
›Do replacement windows have to be impact-rated in Wilmington?
Often yes on mapped coastal wind-borne debris parcels — or approved shutters. Confirm your address with City of Wilmington or New Hanover County and current wind maps. Ask for product approval numbers.
›What efficiency numbers should windows hit?
ENERGY STAR South-Central: U-factor 0.28 or lower and SHGC 0.23 or lower, plus structural DP/impact ratings for your zone. Read NFRC and approval labels separately.
›Are there rebates?
Federal 25C expired December 31, 2025. Duke Smart $aver and Energy Saver NC may apply with strings. Insurance wind-mitigation credits can be a larger lever than rebates on the coast.
›Historic downtown — can I use stock vinyl?
Often not on street-facing elevations. Historic review may require matching profiles and materials. Confirm district status before ordering.
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 Wilmington; NHC Hurricane Florence reports; NC coastal building maps
- — IRS, 25C Energy Efficient Home Improvement Credit (P.L. 119-21)