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HomeAdvisor's attic fan guide (updated June 2026) puts the average installation at $626, with most jobs between $369 and $914. Installed per fan, labor and materials: passive fans $75–$100, roof turbines $100–$150, electric fans $100–$450 and solar or dual-power fans $300–$1,000. If there is no opening to reuse, a roofer cuts and flashes one in about two hours at $45–$85 an hour ($90–$170), or a carpenter cuts a gable opening in about two hours at around $70 an hour ($140). Electric fans need an electrician at $65–$85 an hour for at least an hour; solar fans need none. Fixr (2022) prices a whole house fan at $580–$1,270. No federal tax credit is subtracted: the IRS says the 25C and 25D home energy credits do not apply to property placed in service after December 31, 2025. One solar fan in a new roof opening costs $390–$1,170, a midpoint of $780.
HomeAdvisor’s attic fan guide (homeadvisor.com, updated June 2026) puts the average installation at $626, with most between $369 and $914. Whole house fans use Fixr’s 2022 range. No federal tax credit applies: the IRS says the 25C and 25D credits do not cover property placed in service after December 31, 2025.
| Fan | One fan | Two fans |
|---|---|---|
| Passive (non-powered) roof vent fan | $75–$100 | $150–$200 |
| Roof turbine (wind-driven) | $100–$150 | $200–$300 |
| Electric powered attic fan (roof or gable) | $100–$450 | $200–$900 |
| Solar attic fan | $300–$1,000 | $600–$2,000 |
| Dual-power (solar + electric) | $300–$1,000 | $600–$2,000 |
| Whole house fan (ceiling-mounted) | $580–$1,270 | $1,160–$2,540 |
HomeAdvisor (updated June 2026) puts the average at $626, with most installs between $369 and $914. Installed prices by type: passive $75–$100, roof turbine $100–$150, electric $100–$450, solar or dual-power $300–$1,000.
$300–$1,000 per fan on HomeAdvisor's figures. Add $90–$170 if a roofer has to cut and flash a new opening ($45–$85 an hour for about two hours). A solar fan needs no wiring, so there is no electrician cost.
Not for new installs. The IRS page for the Energy Efficient Home Improvement Credit (25C) says it applies to property placed in service before December 31, 2025, and the IRS page for the Residential Clean Energy Credit (25D) says it is not available for property placed in service after December 31, 2025. Budget the full price.
HomeAdvisor gives $65–$85 an hour with at least one hour of work. A fan that plugs into an existing attic outlet may need nothing more; a new circuit from the panel takes longer.
No. An attic fan exhausts hot air from the attic only. A whole house fan sits in the ceiling and pulls cool outside air through open windows into the house and out through the attic vents. Fixr (2022) puts a whole house fan at $580–$1,270 installed, against $225–$850 for an attic fan.
Check the intake first: the attic ventilation calculator splits net free area between soffit and ridge.
Need the whole roof at once? The free roofing calculator works out roof area, squares, shingle bundles, underlayment, drip edge, ridge cap and installed cost from one set of measurements.