Local research · updated July 2026
Replacement Windows in Boise, Idaho
Boise's replacement-window story runs opposite to most of the country: this is comparatively newer stock. Only 42.6% of Treasure Valley homes predate 1980 and the median home was built in 1985, a reflection of one of the fastest-growing metros in the United States and its heavy post-2000 building boom. That does not mean windows can wait. The homes from Boise's 1980s and 1990s growth spurts carry first-generation double-pane units — clear glass, aluminum or early vinyl frames, no low-E coating — that are now hitting the age where seals fail and fog creeps between the panes. Add a high-desert climate that swings from genuinely cold winters to hot, dry, sun-blasted summers, and the region is entering a broad first-round replacement wave: not tearing out century-old single-pane sash, but retiring the builder-grade insulated glass that came standard a generation ago.
Short answer
In Boise, a standard replacement window (double-hung, casement or slider) typically costs $550–$3,135 installed. Bay and bow windows run $2,755–$8,810+, and a sliding patio door $1,655–$5,505. 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 Boise with the BEA Regional Price Parity for Boise City, ID (2024). How we estimate →
42.6%
of Boise 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
1985
median year built across Boise's 104,833 housing units
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
Window installers in Boise
Compare companies serving Boise. 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 | Meridian, ID | Get a quote → |
| 1Champion Replacement Windows of BoiseChampion | Boise, ID | Get matched → |
| 2Pella Windows and Doors Showroom of Boise, IDPella | Eagle, ID | Get matched → |
| 3Universal Windows Direct of BoiseUniversal Windows Direct | Meridian, ID | Get matched → |
| 4Window World of BoiseWindow World | Garden City, ID | Get matched → |
Renewal by Andersen of Boise
4.8 · 200,000+ reviewsMeridian, ID showroom · serving the Boise 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 Boise homeowners directly.
What drives window decisions in Boise
- Boise is newer than most metros the directory covers: 42.6% of homes predate 1980 and the median year built is 1985. The dominant replacement job here is retiring first-generation double-pane units from the 1980s and 1990s growth boom, not swapping out original single-pane sash.
- The Treasure Valley's high-desert climate works glass from both ends — cold, dry winters and hot, intensely sunny summers — and the large day-to-night temperature swings fatigue insulated-glass seals, making fogged or failed double panes one of the most common local triggers for replacement.
- Idaho's energy code sets a maximum window U-factor of 0.32 in this climate zone, but that is a legal floor well above what a comfortable high-desert home wants; ENERGY STAR Northern-zone glass performs far better against Boise's winter heating loads.
- Explosive population growth means a deep bench of installers but uneven quality: fast-growing markets attract both established local firms and out-of-area operators, so verifying an Idaho contractor registration and local permit history matters more here than in slower markets.
Replacement windows & doors by type in Boise
Local cost ranges and Northern-zone efficiency guidance for each window and door style, specific to Boise homes:
Ranges localized to Boise's cost level: national planning ranges shifted by the BEA Regional Price Parity for Boise City, ID (98.4, U.S. = 100; 2024). How we estimate local costs →
Efficiency requirements for Boise's climate
Boise sits in the ENERGY STAR Northern zone (IECC zone 5B (cold, dry), Ada County). Under the v7.0 specification, qualifying windows need a U-factor of 0.22 or lower with a solar heat gain coefficient (SHGC) of at least 0.17. Heating-dominated climate: the window must hold heat in (very low U-factor) while still letting some free solar warmth through in winter (minimum SHGC). Equivalent-performance tradeoffs allow U-factors of 0.23–0.26 when paired with progressively higher solar gain.
Not sure what these numbers mean? Read our plain-English guide to U-factor and SHGC.
What replacement windows cost here
Because Boise's stock skews newer, a larger share of local projects are straightforward insert (pocket) replacements into sound, square 1980s-and-later openings, which sits toward the more affordable end of the national effort range rather than the full-frame rebuilds older cities require. Two things push the other way. First, honest pricing has to assume no help from incentives: the federal 25C tax credit for windows expired December 31, 2025, and Idaho declined to run the federal Home Energy Rebates program, so there is no state HOMES or HEAR money and utility programs do not rebate windows for market-rate customers. Second, Boise's cold-dry winters make the glass package worth spending on — a low-U-factor, low-E unit that still lets in useful winter sun pays back in comfort and heating bills, so the cheapest builder-grade replacement is rarely the best value here.
For a breakdown by frame material and install type, see our full cost guide.
Rebates & incentives in Idaho
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.
Idaho's IRA Home Energy Rebates would have been administered by the Idaho Office of Energy and Mineral Resources (OEMR, formerly the Governor's Office of Energy Resources), but in March 2025 the Legislature's budget committee (JFAC) refused to authorize the roughly $24.6M in federal HOMES/HEAR spending, so the programs are not launching and Idaho's allocation is being reallocated to participating states. Had they launched, windows would only have qualified through the whole-home HOMES modeled-savings track, not as a standalone rebate. OEMR still lists the rebates as "not currently available" and advises against basing purchases on anticipated rebates, so confirm current status before relying on any state rebate.
- Idaho Power efficiency rebates. Idaho Power's retail efficiency rebates center on heat pumps, HVAC, and smart thermostats rather than windows; energy-efficient windows are available mainly to income-qualified, electric-heat households through its Weatherization Assistance program delivered by community action partners. (Idaho Power (idahopower.com))
- Intermountain Gas residential efficiency. Intermountain Gas's residential efficiency program offers rebates on high-efficiency furnaces, water heaters, and appliances but does not rebate replacement windows, and it excludes measures already required by Idaho code. (Intermountain Gas (intgas.com))
Idaho enforces the statewide Idaho Energy Conservation Code (2020 edition), based on the 2018 IECC with state amendments including Idaho-specific window U-factor tables, in effect since January 2021; Boise permitting runs through the city building department, and Boise's cold IECC zone 5B climate drives low-U-factor replacement-window specs.
Replacement windows in nearby metros
Not in Boise proper? These nearby markets carry the same local research: housing-age data, climate-zone specs, and current rebate status for each city:
Boise window replacement FAQ
›Do I need a permit to replace windows in Boise?
Usually yes. Inside city limits, the City of Boise Planning and Development Services issues building permits for window and door work, and homeowners can apply through the city's online permitting system; if you are unsure whether your specific project needs one, the city's building line is (208) 608-7070. Simple same-size, same-opening glass swaps sometimes fall under lighter review, but cutting a new opening, enlarging one, or adding an egress window is unambiguously permit work. Properties outside the city are handled by Ada County Development Services, and Idaho runs its building-code program at the state level, so the underlying rules — the Idaho Energy Conservation Code, based on the 2018 IECC with Idaho-specific amendments — are consistent valley-wide. Established installers pull the permit as part of the job; treat a bid that skips it as a warning sign.
›What efficiency numbers should replacement windows hit in Boise?
Boise sits in the ENERGY STAR Northern climate zone, and that is the target worth aiming for rather than the code minimum. The v7.0 spec calls for a U-factor of 0.22 or lower paired with a solar heat gain coefficient (SHGC) of at least 0.17. In a cold high-desert climate the low U-factor is the priority — it is what holds heat in through Boise's winters — but the SHGC floor matters too, because useful winter sun through south-facing glass is real free heat, so do not automatically buy the lowest-SHGC glass an installer pushes. For reference, Idaho's energy code only requires a U-factor of 0.32 or better in this zone, so ENERGY STAR windows are meaningfully tighter than the legal minimum.
›Are there rebates for window replacement in Idaho?
Be prepared for essentially none. The federal 25C tax credit that used to cover 30% of qualifying window costs expired December 31, 2025, so it does not apply to a 2026 project. Idaho also declined the Inflation Reduction Act's Home Energy Rebates: in March 2025 the Legislature's budget committee (JFAC) refused to authorize the roughly $24.6 million in federal funding, so unlike many states there is no Idaho HOMES or HEAR rebate program. And the local utilities do not fill the gap for windows — Idaho Power and Intermountain Gas focus their residential incentives on heat pumps and HVAC equipment, with windows appearing only inside income-qualified free weatherization for customers who meet the limits. For most Boise homeowners, that means budgeting the full project cost without expecting a rebate; always confirm current terms directly before you sign.
›My house is only from the 1990s — do I really need new windows?
Quite possibly, and Boise is full of homes in exactly this spot. The Treasure Valley's fast growth means the median home dates to 1985 and much of the stock went up in the 1980s and 1990s, which is prime age for first-generation double-pane units to start failing. Those windows typically have clear glass with no low-E coating and aluminum or early vinyl frames, and after 25 to 35 years the insulated-glass seals give out — you see fog or haze trapped between the panes that no cleaning removes. Even where the seal is intact, that era of glass performs poorly against both cold winters and hot summer sun compared with a modern low-E unit. If your panes are fogging, your frames sweat in January, or rooms are uncomfortable near the glass, a newer build is not a reason to wait.
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
- — National Weather Service Boise; U.S. EPA AirNow
- — IRS, 25C Energy Efficient Home Improvement Credit (P.L. 119-21)