Local research · updated July 2026
Replacement Windows in Myrtle Beach, South Carolina
Myrtle Beach sits on South Carolina's Grand Strand — hurricanes, salt air, and explosive tourism/second-home growth. About 27.9% of homes predate 1980 and the median year built is 1992. Horry County is ENERGY STAR South-Central / IECC 3A with coastal wind overlays: low SHGC for humidity plus impact or shutters where maps require them.
Short answer
In Myrtle Beach, a standard replacement window (double-hung, casement or slider) typically costs $525–$2,980 installed. Bay and bow windows run $2,620–$8,380+, and a sliding patio door $1,570–$5,235. 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 Myrtle Beach with the BEA Regional Price Parity for Myrtle Beach-Conway-North Myrtle Beach, SC (2024). How we estimate →
27.9%
of Myrtle Beach 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
1992
median year built across Myrtle Beach's 24,467 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 Myrtle Beach
Compare companies serving Myrtle Beach. 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 | Conway, SC | Get a quote → |
| 1Window World of Myrtle BeachWindow World | Myrtle Beach, SC | Get matched → |
Renewal by Andersen of Central North Carolina - Conway
4.8 · 200,000+ reviewsConway, SC showroom · serving the Myrtle Beach 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.
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What drives window decisions in Myrtle Beach
- South-Central / 3A coastal: U ≤ 0.28, SHGC ≤ 0.23; confirm WBDR/impact by parcel.
- Tourism/second-home growth: many post-1980 condos and tract homes with failed dual-pane seals.
- Salt air and hurricane wind define hardware and structural ratings.
- SC Duke / utility pathways with strings; 25C expired; insurance wind-mitigation can matter.
Replacement windows & doors by type in Myrtle Beach
Local cost ranges and South-Central-zone efficiency guidance for each window and door style, specific to Myrtle Beach homes:
Ranges localized to Myrtle Beach's cost level: national planning ranges shifted by the BEA Regional Price Parity for Myrtle Beach-Conway-North Myrtle Beach, SC (93.6, U.S. = 100; 2024). How we estimate local costs →
Efficiency requirements for Myrtle Beach's climate
Myrtle Beach sits in the ENERGY STAR South-Central zone (IECC zone 3A (warm, moist), Horry 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 raise costs above inland SC. Growth demand can tighten labor. Federal 25C is gone. Itemize product approval, labor, and permit. Payback is storm resilience and cooling savings.
For a breakdown by frame material and install type, see our full cost guide.
Rebates & incentives in South 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.
South Carolina's IRA Home Energy Rebates are administered by the South Carolina Energy Office (within the Office of Regulatory Staff); the HOMES and HEAR allocations are approved but, as of mid-2026, the consumer-facing programs had not launched, with the Energy Office still finalizing software and contractor enrollment after repeated delays. Windows generally qualify only through the whole-home HOMES modeled-savings track rather than as a standalone item. Confirm current status with the SC Energy Office before promising rebates.
- Duke Energy Smart $aver window rebate. Duke Energy's residential Smart $aver program offers an energy-efficient window rebate that does reach Duke's South Carolina customers, but only for homes with whole-home electric heating (heat pump, electric furnace, or radiant electric), on complete window replacements with air sealing, capped at 13 windows per home. (Duke Energy Smart $aver (duke-energy.com))
- Dominion Energy South Carolina EnergyWise. Dominion Energy South Carolina's residential EnergyWise program rebates heat pumps, central AC, ductwork, and heat pump water heaters but does not offer a standalone replacement-window rebate; window help is generally limited to its income-qualified weatherization offering. (Dominion Energy South Carolina (dominionenergy.com))
South Carolina's residential energy code has lagged, remaining based on the 2009 IECC with state amendments, so code-minimum window U-factors are dated; Charleston and Columbia permitting runs through local building departments, and the hot-humid IECC zone 3A climate makes solar heat gain coefficient (SHGC) as important as U-factor for replacement windows.
Replacement windows in nearby metros
Not in Myrtle Beach proper? These nearby markets carry the same local research: housing-age data, climate-zone specs, and current rebate status for each city:
Myrtle Beach window replacement FAQ
›Do Myrtle Beach windows have to be impact-rated?
Often yes on mapped coastal parcels — or approved shutters. Confirm your address with local building officials 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 ratings for your wind zone. Read NFRC and approval labels separately.
›Are there rebates?
Federal 25C expired December 31, 2025. SC utility programs may help with strings. Insurance wind-mitigation credits can be a larger lever than rebates on the coast.
›My condo is new — still replace?
Growth stock still fails: seals die and builder-grade hardware corrodes in salt air. If glass is sound, sealed, and already impact-rated to code, replacement may not be needed — verify with an inspection.
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; SC coastal wind maps; NOAA tropical cyclone products
- — IRS, 25C Energy Efficient Home Improvement Credit (P.L. 119-21)