Local research · updated July 2026
Casement windows in Fort Collins, Colorado
Side-hinged sash that cranks outward like a door. For Fort Collins's comparatively newer housing stock (though 31.1% of homes still predate 1980), casement window replacement is a common project — and in the ENERGY STAR Northern zone, the number that matters most is a low U-factor (≤ 0.22) to keep heat in.
Short answer
Casement windows in Fort Collins typically cost $565–$2,575 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 Fort Collins (BEA Regional Price Parity, 2024). How we estimate →
$565–$2,575
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 Fort Collins
31.1%
of Fort Collins homes were built before 1980
Source: U.S. Census Bureau, 2019–2023 ACS 5-Year Estimates
U ≤ 0.22
the ENERGY STAR v7.0 number that matters most in the Northern zone
Source: EPA ENERGY STAR v7.0
Is a Casement window right for a Fort Collins 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 Fort Collins's climate
Fort Collins sits in the ENERGY STAR Northern zone (IECC zone 5B (cold, dry), Larimer County), where the priority is a low U-factor (≤ 0.22) to keep heat in.
A casement closes against a compression seal — the tightest of any operable window. In the Northern 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 Fort Collins
Casement window replacement in Fort Collins runs $565–$2,575 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. Front Range labor runs above national averages. Hail-rated glass packages push material costs up; sound newer openings often take inserts. Colorado IRA Home Energy Rebate pathways and utility programs (including Platte River / city utilities where applicable) — verify current status. Federal 25C is gone. Ask your insurer about credits for impact-resistant openings.
That's the national range shifted to Fort Collins's cost level using the BEA Regional Price Parity for Fort Collins-Loveland, CO (101.1, 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 Fort Collins
A sample of companies with locations in the Fort Collins market. See the full Fort Collins directory for all listings, our map, and featured-partner disclosures.
| Company | Location | Request a quote |
|---|---|---|
 4.8 · 200,000+ reviews | Longmont, CO | Get a quote → |
| 1Champion Replacement Windows of Ft. CollinsChampion | Loveland, CO | Get matched → |
| 2Pella Windows and Doors Showroom of Cheyenne, WYPella | Cheyenne, WY | Get matched → |
| 3Window World of CheyenneWindow World | Cheyenne, WY | Get matched → |
Renewal by Andersen Window Replacement
4.8 · 200,000+ reviewsLongmont, CO showroom · serving the Fort Collins 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 Fort Collins homeowners directly.
Rebates & incentives in Colorado
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.
Colorado runs live IRA Home Energy Rebate programs; whole-home efficiency retrofits (HOMES pathway) can include window replacement when part of a modeled energy-savings project. See our Fort Collins guide for the full program list.
Casement windows in Fort Collins: FAQ
›What efficiency numbers should a Casement window in Fort Collins meet?
Fort Collins sits in the ENERGY STAR Northern zone (IECC 5B (cold, dry)). Qualifying units need a U-factor of 0.22 or lower with an SHGC of at least 0.17. A casement closes against a compression seal — the tightest of any operable window. In the Northern zone's cold winters, where air leakage drives heating loss, that seal is a real advantage.
›How much does Casement window replacement cost in Fort Collins?
A useful planning range for Casement window replacement in Fort Collins is $565–$2,575 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. Front Range labor runs above national averages. Hail-rated glass packages push material costs up; sound newer openings often take inserts. Colorado IRA Home Energy Rebate pathways and utility programs (including Platte River / city utilities where applicable) — verify current status. Federal 25C is gone. Ask your insurer about credits for impact-resistant openings.
›Do I need a permit to replace Casement windows in Fort Collins?
Replacement generally requires a permit, and new units must meet the current energy code. See our Fort Collins 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)