How much does it cost to replace an exhaust fan?
Knowing the cost before getting an estimate can equal big savings
+2 more
Exhaust fans can be essential in preventing mold and mildew growth in your bathroom by removing excess moisture from the air. They also help prevent wood rot, structural damage, peeling paint and loosened tiles. However, unexpected breakdowns of your exhaust fan can lead to costly expenses and leave your bathroom humid. Here are the average replacement and labor costs and a few ways to save money.
The cost of replacing an exhaust fan depends on the type and brand of the fan.
Jump to insightThe average cost to replace a bathroom exhaust fan is $385.
Jump to insightExhaust fan replacement can cost anywhere between $240 to $551.
Jump to insightExhaust fan replacement costs
Exhaust fans are rated by how much air they can move, which is measured by cubic feet per minute (CFM). Typically, you’ll need a fan that moves one CFM of air per square foot of your bathroom. The cost of replacing your exhaust fan greatly depends on the size of the unit you'll need for your bathroom.
Here’s what you can expect to pay for an exhaust fan replacement depending on the CFM grade:
| CFM rating | Bathroom square footage | Average exhaust fan cost |
|---|---|---|
| 80 or less | $40 to 80 square feet | $20 to $250 |
| 80 to 99 | 80 to 100 square feet | $50 to $325 |
| 100 to 150 | 100 to 150 square feet | $55 to $400 |
| 150 or more | 150 or more square feet | $100 to $500 |
Exhaust fan replacement costs by type
In addition to the CFM rating, exhaust fan replacement costs depend on the type of fan, as well. For example, fans with a higher CFM rating and more features like heaters, lights and timers are typically more expensive than basic models. An average exhaust fan replacement usually costs around $385 but can run anywhere between $240 to $551.
Here are the average costs of replacing exhaust fans depending on the type:
| Type of exhaust fan | Cost range |
|---|---|
| Basic fan | $20 to $50 |
| Wall-mounted | $20 to $350 |
| Fan with light | $40 to $330 |
| Ceiling-mounted | $20 to $400 |
| Fan with light and heater | $50 to $370 |
| Inline | $100 to $310 |
| Humidity or motion sensing | $100 to $400 |
| Smart fan | $75 to $190 |
| Fan with heater | $90 to $280 |
| Continuous run | $120 to $330 |
| Fan with timer | $100 to $300 |
| Adjustable speed | $90 to $380 |
Additional exhaust fan costs
If you're replacing your exhaust fan or installing a new system, you may need a professional. Labor costs typically range from $200 to $800, depending on whether electrical work, ductwork, venting and potentially even roofing are required for the fan installation.
Additionally, you might need an HVAC or roofing permit to install a new system. HVAC permits can cost anywhere from $250 to $400, and roofing permits range from $70 to $250.
Factors affecting exhaust fan replacement costs
Several factors can influence how much you’ll ultimately pay for an exhaust fan replacement:
- Fan size and CFM rating: Larger bathrooms require higher-capacity fans, which tend to cost more.
- Features: Fans with added features like lights, heaters, motion sensors or timers typically come with higher price tags.
- Installation complexity: Replacements that require additional ductwork, roofing or electrical upgrades increase labor costs.
- Brand and quality: Premium brands and energy-efficient models may cost more upfront but could save money in the long run.
- Permit requirements: Some installations may require HVAC or roofing permits, which add to the total expense.
DIY exhaust fan replacement vs. hiring a contractor
If you are thinking about replacing your exhaust fan, you could potentially do it yourself. Typical replacements usually take 30 minutes to an hour, and you typically only need a key saw, a flat-head or Phillips screwdriver, brackets and spackle for roof repair. However, some installments require more detailed work, like electrical, ductwork, venting and roofing, so it might be worth calling a contractor.
DIY pros
- Saves money on labor costs
- Can usually be done in less than an hour
- Requires only basic tools for straightforward replacements
- Provides a sense of accomplishment
DIY cons
- Electrical or ductwork mistakes can be hazardous
- More complex replacements may require advanced skills
- Risk of voiding warranties if not installed properly
- May need to purchase permits or additional tools
When should an exhaust fan be replaced?
Most exhaust fans last up to 10 years, but kitchen and attic fans can last around 12 years. Before your exhaust fan breaks down completely, there will be some signs that it needs to be repaired or replaced.
One big sign is when the room starts to feel stuffy or has an odor. This could be caused by your fan working slower because of electrical or HVAC problems. Also, if you hear a strange noise coming from your system or you see mold, mildew or wood rot, it might be time for a replacement.
Does your home warranty cover exhaust fan repair or replacement?
Many home warranty companies offer coverage on repairs and replacements for exhaust fans in their systems plan or as an add-on. However, some plans only include kitchen exhaust fans, while others only cover attic or bathroom fans.
Also, some home warranties only offer protection for newer fans, certain types and certain repairs. You may not be covered if you have an older or professional-grade exhaust fan. So, double-checking your policy may be a good idea.
FAQ
How long do exhaust fans in your home last?
Exhaust fans have a lifespan of up to ten years with proper maintenance.
Do I need to have my exhaust fans serviced regularly?
Regular maintenance like cleaning, air filter changes and occasional oiling should be done on your exhaust fans at least once a year.
Do exhaust fans have a warranty?
Yes, built-in and portable exhaust fans typically come with a manufacturer's warranty. Many home warranties also offer coverage for exhaust fans in their base plan or as an add-on.
What are the signs of exhaust fan failure?
Common signs of exhaust fan failure include strange noises, reduced airflow, lingering odors, visible mold or mildew and moisture buildup on walls or ceilings.
How long does it take to replace an exhaust fan?
Most straightforward replacements take 30 minutes to an hour, while more complex installations requiring electrical or ductwork may take longer.
Bottom line
Breakdowns on your exhaust fan can leave your room feeling stuffy and lead to mold and mildew. Replacing an exhaust fan yourself can be easy enough to do. However, if electrical work and ductwork aren’t part of your skill set, calling a professional may be the way to go. You can expect to pay $200 to $800 for labor, but getting a home warranty that covers exhaust fans could save you a lot of money if you're looking for a more budget-friendly option.
Article sources
ConsumerAffairs writers primarily rely on government data, industry experts and original research from other reputable publications to inform their work. Specific sources for this article include:
- Harrison Electric, “5 Signs It’s Time to Replace Your Bathroom Exhaust Fan.” Accessed Aug. 28, 2025.
- Home Ventilating Institute, “Care and Maintenance of Your Bathroom Exhaust Fan.” Accessed Aug. 28, 2025.
- Angi, “How Much Does It Cost to Install a Bathroom Fan?” Accessed Aug. 28, 2025.
