Local research · updated July 2026
Replacement Windows in Brunswick, Georgia
Brunswick sits on Georgia's Golden Isles coast near St. Simons and Jekyll — port and resort demand, hurricanes, wind-borne debris rules, salt air, and mixed second-home and older stock. Of the city's housing units, 69.7% predate 1980 and the median year built is 1962. Glynn County is ENERGY STAR Southern / IECC 2A: low SHGC for cooling plus impact or shutters where wind maps require them.
Short answer
In Brunswick, a standard replacement window (double-hung, casement or slider) typically costs $490–$2,795 installed. Bay and bow windows run $2,455–$7,855+, and a sliding patio door $1,475–$4,905. 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 Brunswick with the BEA Regional Price Parity for Brunswick-St. Simons, GA (2024). How we estimate →
69.7%
of Brunswick 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
1962
median year built across Brunswick's 7,260 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 Brunswick
Compare companies serving Brunswick. 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 | Jacksonville, FL | Get a quote → |
| 1Pella Windows and Doors Showroom of St. Simons Island, GAPella | St. Simons Island, GA | Get matched → |
Renewal by Andersen Jacksonville Showroom
4.8 · 200,000+ reviewsJacksonville, FL showroom · serving the Brunswick metro
Full-service manufacturer and installer, transferable warranty, local crews. Why it's our Top Pick
Get a quote →1Pella Windows and Doors Showroom of St. Simons Island, GA
St. Simons Island, GA · Pella
Get matched →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 Brunswick homeowners directly.
What drives window decisions in Brunswick
- Southern / 2A coastal: U ≤ 0.32, SHGC ≤ 0.23; confirm WBDR/impact by parcel.
- Salt air and hurricane wind define hardware and structural ratings.
- Resort / second-home and primary stock: two different job types.
- GEFA IRA and utility pathways when live; 25C expired.
Replacement windows & doors by type in Brunswick
Local cost ranges and Southern-zone efficiency guidance for each window and door style, specific to Brunswick homes:
Ranges localized to Brunswick's cost level: national planning ranges shifted by the BEA Regional Price Parity for Brunswick-St. Simons, GA (87.7, U.S. = 100; 2024). How we estimate local costs →
Efficiency requirements for Brunswick's climate
Brunswick sits in the ENERGY STAR Southern zone (IECC zone 2A (hot, humid), Glynn 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
Coastal resort packages cost more when impact ratings apply. 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 Georgia
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.
Georgia's Home Energy Rebates (both the Home Efficiency Rebates and HEAR tracks) are live statewide, administered by the Georgia Environmental Finance Authority (GEFA), with more than $25 million delivered as of spring 2026. Windows fit best under the Home Efficiency Rebates track as part of a whole-home retrofit with modeled energy savings — federal guidance changes taking effect in late 2026 may alter program details, so confirm current rules.
- Georgia Home Energy Rebates (GEFA). The statewide IRA-funded program pays rebates scaled to household income and projected whole-home energy savings; window replacement can count within a broader efficiency project but is not rebated as a standalone measure. (energyrebates.georgia.gov)
- Georgia Power Home Energy Improvement Program. Georgia Power's residential efficiency program rebates a share of qualifying improvements — primarily insulation, air sealing, duct sealing, and HVAC measures. Windows are not a core rebated measure, so window projects mainly benefit when bundled with qualifying air-sealing and whole-house work. Confirm current measure list. (GeorgiaPower.com HEIP pages; DSIRE)
Georgia enforces a State Minimum Standard Energy Code still based on the 2015 IECC with Georgia amendments — a moderate standard where low solar-heat-gain glass matters as much as U-factor given the state's long cooling season.
Replacement windows in nearby metros
Not in Brunswick proper? These nearby markets carry the same local research: housing-age data, climate-zone specs, and current rebate status for each city:
Brunswick window replacement FAQ
›Do I need a permit to replace windows in Brunswick?
Usually yes for full replacement. City of Brunswick or Glynn County. Confirm the installer pulls the permit.
›What efficiency numbers should windows hit?
ENERGY STAR Southern: U-factor 0.32 or lower and SHGC 0.23 or lower, plus structural ratings for your wind zone.
›Are there rebates?
Federal 25C expired December 31, 2025. Check Georgia GEFA and utility programs. Insurance wind-mitigation credits can matter on the coast.
›Does salt air change product choice?
Yes — specify corrosion-resistant hardware and durable exterior finishes.
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 Jacksonville; Georgia coastal wind maps; FEMA flood maps
- — IRS, 25C Energy Efficient Home Improvement Credit (P.L. 119-21)