Chris G.
Woodinville
Bathroom Exhaust Fan Installation in Seattle
Quiet fans sized to the room and vented outside, fan-light combos, humidity sensors, and timers. We replace fans that are loud or useless, and cut in new ones where a bathroom never had one.
Licensed, Bonded, & Insured
Over 100 Five-Star Reviews
Free Estimates
Upfront Pricing
Permits and Inspection Included
2-Year Warranty
WA Lic #CHARGCH761KL · Most jobs scheduled the same week
Sizing, Noise and Venting
Fan Installation & Replacement
A bathroom fan either clears the room or it does not, and four things decide which:
Sizing the Fan
Measured in CFM, and matched to the room rather than to whatever came out of the ceiling
How Loud It Is
Measured in sones, where under 1.0 is quiet enough that you look up to check it is running
Vented Outside
Through the roof or out a soffit, and never into the attic
Replacing an Existing Fan
Often done from below without opening the ceiling, if the housing fits the old opening
Out the Roof or Out a Soffit
Both are correct, and which one you get is decided by what is above the bathroom. A roof cap is the shorter, straighter run and wants flashing done properly. A soffit run is longer and stays off the roof, which suits a newer roof nobody wants cut. Either way the duct is sized to the fan instead of to whatever was there before, and any run crossing a cold attic is insulated, because an uninsulated one condenses in winter and drips back down into the housing.
Why Moisture Matters Here
Seattle bathrooms spend half the year unable to dry out on their own. A fan that is undersized, too loud to use, or vented into the attic leaves that moisture in the house, where it turns up as peeling paint, black spotting on the ceiling, and eventually soft sheathing above the insulation.
Humidity, Timers and Combos
Fan Controls & Fan-Light Combos
A correctly sized fan still does nothing if it only runs for the ninety seconds someone is in the room:
Humidity Sensors
The fan starts when the room gets damp and stops when it dries out, with nobody involved
Timer Switches
Set it going for twenty or thirty minutes and leave the room
Fan-Light Combos
Fan, light, and sometimes a night light or a heater in one opening on one circuit
Continuous Low Speed
A trickle of ventilation all day with a boost when the room is in use
A humidity sensor or a timer costs very little next to the fan itself, and it is the difference between a bathroom that dries out and one that does not. We fit either to a new fan or to one you already have.
What It Costs
What Determines Bathroom Fan Installation Cost?
Whether the bathroom has a fan now is most of the number, and the rest is how hard the ceiling is to reach:
Replacing or Starting Fresh
A bathroom with no fan at all needs a circuit, a switch, a duct, and a hole through the outside of the house
Attic Access
A walkable attic above the bathroom keeps it short, and a finished ceiling means working through the opening
The Duct Run
Short and straight beats long with bends, and a run across a cold attic needs insulated duct
Circuit and Switch
A fan-heater combo pulls enough to want a circuit of its own
Estimates are free and itemized, with the fan and the labor on separate lines, so you can pick the unit yourself if you would rather.
Customer Reviews
Real Reviews From Recent Fan Installs
Over 100 five-star reviews across Google, Yelp, and more. See all reviews
Common Questions
Frequently Asked Questions
Replacing a fan that already has a duct and a switch is the low end. Putting a fan into a bathroom that has never had one costs several times that, because it needs a circuit, a switch, a duct run, and a roof or soffit penetration. We price it on a free walkthrough.
Washington requires mechanical ventilation in a bathroom without an operable window, and in practice a window is not a substitute anyone uses in January. Without one, moisture ends up in the drywall, the paint, and eventually the framing.
No. It is a code violation everywhere in Washington, and it is how attics rot. The duct has to carry the moisture all the way outside, through the roof or out a soffit. If you have an existing fan venting into the attic, we can redirect it.
One CFM per square foot works for most bathrooms up to 100 square feet, so a 60 square foot bathroom wants at least a 60 CFM fan. Larger rooms, separate toilet compartments, and steam showers get sized by fixture instead, which usually lands higher.
Either it is a builder-grade unit running around 4 sones, or the duct is undersized or crushed and the fan is fighting it. Worth checking the duct before buying a quieter fan, since a good fan on a bad duct is still loud.
Most are a morning, if the new housing fits the existing opening and the duct is in good shape. Cutting in a fan where there has never been one is most of a day, and longer if there is no attic access above the room.
Free Estimate
Get Your Free Estimate
We respond to most requests within the hour, but will get back to you within a day at the latest.
What's Included in Every Fan Install
- Licensed, insured electricians
- Vented outside, never the attic
- Fan sized to the room
- Permits pulled where required
- Upfront pricing before we start
- Workmanship warranty
Prefer to talk it through?
How It Works
From Loud and Useless to Quiet
1
Tell Us the Bathroom
Call or send the form with the room size, whether there is a fan now, and whether anything above it is accessible. A photo of the ceiling and of the outside wall helps.
2
Free Estimate
A licensed electrician checks the existing duct, the attic access, and the circuit, then prices the fan and the work on one itemized sheet.
3
Installed and Tested
Most replacements are done in a morning. We confirm the fan is actually moving air to the outside before we leave, not just spinning.
Our Service Area
Bathroom Fan Installation Across Greater Seattle
We install and replace bathroom exhaust fans, fan-light combos, humidity sensors, and timer switches, and redirect fans that were vented into the attic, from Seattle to Mount Vernon. Free estimates, upfront pricing, and a full warranty are the In Charge Home Electric standard for all projects.
Our service area includes
SeattleBellevueRentonKirklandRedmondBothellShorelineBurienTukwilaEverettArlingtonMount VernonLynnwoodMarysvilleEdmondsKenmoreMercer IslandSnohomishSammamishMedina
and surrounding communities
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