Local research · updated July 2026
Casement windows in Spartanburg, South Carolina
Side-hinged sash that cranks outward like a door. For Spartanburg's older housing stock (69.8% of homes predate 1980), casement window replacement is a common project — and in the ENERGY STAR South-Central zone, the number that matters most is a low SHGC (≤ 0.23) to block solar heat.
Short answer
Casement windows in Spartanburg typically cost $510–$2,320 installed per opening. The low end is a mid-grade vinyl insert from a regional installer; the top is a premium frame, a full-frame installation, or a full-service national brand.
NREL REMDB + BLS PPI, localized to Spartanburg (BEA Regional Price Parity, 2024). How we estimate →
$510–$2,320
installed range per opening for Casement window, from a mid-grade insert up to a premium or full-frame job
Source: NREL REMDB + BLS PPI, localized to Spartanburg
69.8%
of Spartanburg homes were built before 1980
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
Is a Casement window right for a Spartanburg home?
Crank handle swings the full sash outward; locks compress the seal.
Where it fits:
- Maximum ventilation — the whole opening opens
- Tightest air seal of the common operable styles (compression seal)
- Hard-to-reach placements like over kitchen sinks
What to weigh:
- Projects outward — check clearance to walkways and screens
- Hardware is the wear item; crank quality matters
- Width limits — very wide openings need mulled units
Casement windows and Spartanburg's climate
Spartanburg sits in the ENERGY STAR South-Central zone (IECC zone 3A (warm, moist), Spartanburg County), where the priority is a low SHGC (≤ 0.23) to block solar heat.
A casement closes against a compression seal, the tightest of any operable window — good for holding conditioned air inside through a long South-Central-zone cooling season.
New to these numbers? See our plain-English guide to U-factor and SHGC and the full casement guide.
What Casement windows cost in Spartanburg
Casement window replacement in Spartanburg runs $510–$2,320 installed. The low end is a mid-grade vinyl insert from a regional installer; the top is a premium frame, a full-frame installation, or a full-service national brand. Upstate pricing is generally moderate and competitive. Itemize glass package and permit. Federal 25C is gone; Duke Smart $aver may apply with eligibility strings.
That's the national range shifted to Spartanburg's cost level using the BEA Regional Price Parity for Spartanburg, SC (91.1, U.S. = 100; 2024). How we estimate local costs →
For a breakdown by frame material and install type, see our full cost guide.
Installers serving Spartanburg
A sample of companies with locations in the Spartanburg market. See the full Spartanburg directory for all listings, our map, and featured-partner disclosures.
| Company | Location | Request a quote |
|---|---|---|
 4.8 · 200,000+ reviews | Duncan, SC | Get a quote → |
| 1Champion Window Siding & PatioChampion | Greenville, SC | Get matched → |
| 2Pella Windows and Doors Showroom of Greenville, SCPella | Greenville, SC | Get matched → |
| 3Window NationWindow Nation | Greenville, SC | Get matched → |
| 4Window World of UpstateWindow World | Greenville, SC | Get matched → |
Renewal by Andersen of the Carolinas-Duncan
4.8 · 200,000+ reviewsDuncan, SC showroom · serving the Spartanburg 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 Spartanburg homeowners directly.
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. See our Spartanburg guide for the full program list.
Casement windows in Spartanburg: FAQ
›What efficiency numbers should a Casement window in Spartanburg meet?
Spartanburg sits in the ENERGY STAR South-Central zone (IECC 3A (warm, moist)). Qualifying units need a U-factor of 0.28 or lower and an SHGC of 0.23 or lower. A casement closes against a compression seal, the tightest of any operable window — good for holding conditioned air inside through a long South-Central-zone cooling season.
›How much does Casement window replacement cost in Spartanburg?
A useful planning range for Casement window replacement in Spartanburg is $510–$2,320 installed. The low end is a mid-grade vinyl insert from a regional installer; the top is a premium frame, a full-frame installation, or a full-service national brand. Upstate pricing is generally moderate and competitive. Itemize glass package and permit. Federal 25C is gone; Duke Smart $aver may apply with eligibility strings.
›Do I need a permit to replace Casement windows in Spartanburg?
Replacement generally requires a permit, and new units must meet the current energy code. See our Spartanburg guide for local permitting and rebate details, and always confirm your installer pulls the permit.
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
- — NREL residential window cost analysis (planning ranges)