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Whole-House Fan — Installation & Replacement
Cool the entire home fast with fresh evening air. A whole-house fan mounts in the hallway ceiling and pulls warm indoor air up into the attic, while open windows bring in cooler outdoor air. Done right, it delivers rapid cooling, lower AC use, and cleaner airflow.
Why it works
- High airflow clears built-up heat from rooms and the attic
- Lower energy use on cool nights vs. running AC
- Better air quality by flushing stale indoor air
What “done right” includes
- Proper sizing (CFM) matched to your home’s square footage and layout
- Quiet operation using insulated, sealed dampers and vibration isolation
- Adequate attic vent area so the fan can exhaust air without back-pressure
- Air sealing between attic and living space to prevent dust drafts
- Safe electrical: dedicated circuit, correct switch/timer, compliant wiring
Installation process
- On-site assessment — confirm location, calculate target CFM, measure attic net free vent area, check electrical panel capacity.
- Options and written pricing after the visit — standard vs. ultra-quiet, controls (wall timer, remote, smart), grille styles.
- Professional installation — framed opening, sealed and insulated damper box, clean grille cut-in, dedicated wiring, weather-tight attic connections.
- Ventilation tune — add or clear attic vents if needed; verify airflow path from windows to the fan.
- Test and handoff — run test, sound check, usage tips for best results.
How to use it
Open a few windows, turn the fan on during cooler evenings and mornings, then shut windows and the fan as the day warms. The insulated damper helps keep heat out when the fan is off.
Safety notes
Use with windows open. Avoid operating near open-flame appliances that draw indoor air. We’ll confirm safe clearances and ventilation during the visit.
Wondering If We Cover Your City?
Our services are just as easy to schedule across multiple parts of the Bay Area. In the South Bay, we serve San Jose, Sunnyvale, Los Gatos, Saratoga, Campbell, Cambrian Park, Cupertino, Mountain View, Los Altos, Palo Alto, and Menlo Park.
On the Peninsula and the West Bay, we provide the same convenient support in Atherton, Redwood City, San Carlos, Belmont, Foster City, and surrounding areas. In the East Bay, we’re available in Fremont, Newark, Milpitas, and Union City—so wherever you are in our service area, help is close by and simple to book.
If you’re not sure whether we cover your neighborhood, just reach out—give us a call or submit a request online. It’s quick, easy, and completely free, and we’ll confirm availability and next steps right away.
Schedule a technician for an on-site whole-house fan assessment and installation plan: 510-400-6425.
Keywords: whole-house fan installation, whole house fan replacement, quiet whole house fan, attic ventilation, hallway cooling fan.