Local research · updated July 2026
Double-hung windows in Mankato, Minnesota
Two vertically sliding sashes; both the top and bottom sash open. For Mankato's mixed-age housing stock (49.6% of homes predate 1980), double-hung 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
Double-hung windows in Mankato typically cost $635–$2,900 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 Mankato (BEA Regional Price Parity, 2024). How we estimate →
$635–$2,900
installed range per opening for Double-hung window, from a mid-grade insert up to a premium or full-frame job
Source: NREL REMDB + BLS PPI, localized to Mankato
49.6%
of Mankato 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 Double-hung window right for a Mankato home?
Both sashes slide vertically and typically tilt inward for cleaning.
Where it fits:
- Traditional and historic home styles
- Rooms facing walkways, porches, or patios (no outward projection)
- Easy cleaning from inside on upper floors
What to weigh:
- More potential air-leakage paths than hinged styles at equal quality
- Half the opening ventilates at any one time
Double-hung windows and Mankato's climate
Mankato sits in the ENERGY STAR Northern zone (IECC zone 6A (cold, moist), Blue Earth County), where the priority is a low U-factor (≤ 0.22) to keep heat in.
Double-hung sashes seal against weatherstripping as they slide, so they have more potential air-leakage paths than hinged styles. In the Northern zone, prioritize a well-built unit and a low U-factor (≤ 0.22) to offset that.
New to these numbers? See our plain-English guide to U-factor and SHGC and the full double-hung guide.
What Double-hung windows cost in Mankato
Double-hung window replacement in Mankato runs $635–$2,900 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. Mankato is a moderately priced installer market, and two things move the number most. The first is the glass package: because this is a heating-dominated zone 6A climate, better bids reach for Northern-zone U-factors (0.22 or lower) and often triple-pane, and a triple-pane unit is simply a different product at a different price than a code-minimum double-pane -- so make competing quotes specify the same glass before you compare bottom lines. The second is the age of the house: with a median build year of 1981 and nearly half the stock pre-1980, out-of-square openings, aging frames, and lead-paint precautions on pre-1978 homes all add labor a newer-construction quote never sees, so insist on an in-person measure-and-quote. On incentives, budget conservatively: the federal 25C tax credit expired December 31, 2025, Minnesota's IRA-funded Home Energy Rebates were still awaiting federal approval and not yet open to homeowners as of mid-2026, and the utility programs that are live (through Xcel Energy and Minnesota Energy Resources) fund whole-home efficiency work rather than standalone window rebates.
That's the national range shifted to Mankato's cost level using the BEA Regional Price Parity for Mankato, MN (91, 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 Mankato
A sample of companies with locations in the Mankato market. See the full Mankato directory for all listings, our map, and featured-partner disclosures.
| Company | Location | Request a quote |
|---|---|---|
 4.8 · 200,000+ reviews | Mankato, MN | Get a quote → |
| 1Window World of Southern MinnesotaWindow World | Mankato, MN | Get matched → |
Renewal by Andersen
4.8 · 200,000+ reviewsMankato, MN showroom · serving the Mankato 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 Mankato homeowners directly.
Rebates & incentives in Minnesota
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.
Minnesota's IRA Home Energy Rebates (Save Energy Minnesota, administered by the Department of Commerce) were still awaiting federal DOE approval and not yet open to homeowners as of mid-2026. In the meantime, the live path is the utility Conservation Improvement Program (CIP): whole-home efficiency retrofits can include windows within a modeled-savings project. Confirm current status with Minnesota Commerce before counting on rebate dollars. See our Mankato guide for the full program list.
Double-hung windows in Mankato: FAQ
›What efficiency numbers should a Double-hung window in Mankato meet?
Mankato sits in the ENERGY STAR Northern zone (IECC 6A (cold, moist)). Qualifying units need a U-factor of 0.22 or lower with an SHGC of at least 0.17. Double-hung sashes seal against weatherstripping as they slide, so they have more potential air-leakage paths than hinged styles. In the Northern zone, prioritize a well-built unit and a low U-factor (≤ 0.22) to offset that.
›How much does Double-hung window replacement cost in Mankato?
A useful planning range for Double-hung window replacement in Mankato is $635–$2,900 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. Mankato is a moderately priced installer market, and two things move the number most. The first is the glass package: because this is a heating-dominated zone 6A climate, better bids reach for Northern-zone U-factors (0.22 or lower) and often triple-pane, and a triple-pane unit is simply a different product at a different price than a code-minimum double-pane -- so make competing quotes specify the same glass before you compare bottom lines. The second is the age of the house: with a median build year of 1981 and nearly half the stock pre-1980, out-of-square openings, aging frames, and lead-paint precautions on pre-1978 homes all add labor a newer-construction quote never sees, so insist on an in-person measure-and-quote. On incentives, budget conservatively: the federal 25C tax credit expired December 31, 2025, Minnesota's IRA-funded Home Energy Rebates were still awaiting federal approval and not yet open to homeowners as of mid-2026, and the utility programs that are live (through Xcel Energy and Minnesota Energy Resources) fund whole-home efficiency work rather than standalone window rebates.
›Do I need a permit to replace Double-hung windows in Mankato?
Replacement generally requires a permit, and new units must meet the current energy code. See our Mankato 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)