Local research · updated July 2026
Casement windows in Durham, North Carolina
Side-hinged sash that cranks outward like a door. For Durham's comparatively newer housing stock (though 30.6% of homes still predate 1980), casement window replacement is a common project — and in the ENERGY STAR North-Central zone, the number that matters most is a low U-factor (≤ 0.25) to keep heat in.
Short answer
Casement windows in Durham typically cost $545–$2,485 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 Durham (BEA Regional Price Parity, 2024). How we estimate →
$545–$2,485
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 Durham
30.6%
of Durham homes were built before 1980
Source: U.S. Census Bureau, 2019–2023 ACS 5-Year Estimates
SHGC ≤ 0.4
the ENERGY STAR v7.0 number that matters most in the North-Central zone
Source: EPA ENERGY STAR v7.0
Is a Casement window right for a Durham 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 Durham's climate
Durham sits in the ENERGY STAR North-Central zone (IECC zone 4A (mixed, moist), Durham County), where the priority is a low U-factor (≤ 0.25) to keep heat in.
A casement closes against a compression seal — the tightest of any operable window. In the North-Central zone's cold winters, where air leakage drives heating loss, that seal is a real advantage.
New to these numbers? See our plain-English guide to U-factor and SHGC and the full casement guide.
What Casement windows cost in Durham
Casement window replacement in Durham runs $545–$2,485 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. Triangle pricing is competitive, and Durham often lands favorably for clean insert jobs on newer subdivision stock where the existing frames are square and sound — a straightforward pocket replacement rather than a full-frame tear-out. Historic and Duke-adjacent properties run higher: wood restoration, larger or non-standard openings, and possible historic-district requirements all add cost. Itemize every bid — exact product line and its NFRC U-factor/SHGC, insert versus full-frame, and disposal. Federal 25C expired at the end of 2025; Duke Energy's Smart $aver and North Carolina state IRA-funded programs may help but carry eligibility strings (often electric-heat homes and participating contractors), so confirm the paperwork yourself before you bank on a rebate. Get at least three itemized bids.
That's the national range shifted to Durham's cost level using the BEA Regional Price Parity for Durham-Chapel Hill, NC (97.6, 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 Durham
A sample of companies with locations in the Durham market. See the full Durham directory for all listings, our map, and featured-partner disclosures.
| Company | Location | Request a quote |
|---|---|---|
 4.8 · 200,000+ reviews | Garner, NC | Get a quote → |
| 1Champion Replacement Windows of RaleighChampion | Durham, NC | Get matched → |
| 2Champion Window CompanyChampion | Morrisville, NC | Get matched → |
| 3Mad City Windows & Baths of RaleighMad City Windows | Clayton, NC | Get matched → |
| 4Pella Windows and Doors Showroom of Raleigh, NCPella | Durham, NC | Get matched → |
| 5Power Home RemodelingPower Home Remodeling | Morrisville, NC | Get matched → |
Renewal by Andersen of Central North Carolina - Garner
4.8 · 200,000+ reviewsGarner, NC showroom · serving the Durham 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 Durham homeowners directly.
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. See our Durham guide for the full program list.
Casement windows in Durham: FAQ
›What efficiency numbers should a Casement window in Durham meet?
Durham sits in the ENERGY STAR North-Central zone (IECC 4A (mixed, moist)). Qualifying units need a U-factor of 0.25 or lower and an SHGC of 0.4 or lower. A casement closes against a compression seal — the tightest of any operable window. In the North-Central zone's cold winters, where air leakage drives heating loss, that seal is a real advantage.
›How much does Casement window replacement cost in Durham?
A useful planning range for Casement window replacement in Durham is $545–$2,485 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. Triangle pricing is competitive, and Durham often lands favorably for clean insert jobs on newer subdivision stock where the existing frames are square and sound — a straightforward pocket replacement rather than a full-frame tear-out. Historic and Duke-adjacent properties run higher: wood restoration, larger or non-standard openings, and possible historic-district requirements all add cost. Itemize every bid — exact product line and its NFRC U-factor/SHGC, insert versus full-frame, and disposal. Federal 25C expired at the end of 2025; Duke Energy's Smart $aver and North Carolina state IRA-funded programs may help but carry eligibility strings (often electric-heat homes and participating contractors), so confirm the paperwork yourself before you bank on a rebate. Get at least three itemized bids.
›Do I need a permit to replace Casement windows in Durham?
Replacement generally requires a permit, and new units must meet the current energy code. See our Durham 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)