
The best bathroom exhaust fan venting option exits through your roof. However, other choices exist if a roof vent installation is not possible.
Satisfy your “exhausting” curiosity
Bathroom ventilation keeps moisture under control, and you can mount your vent in the ceiling or on the wall to fit your space.
Expect to pay $240 to $560 for professional bathroom vent installation, with costs increasing by $250 to $950 if you need additional ductwork added.
Your ceiling vent needs routing through the roof or siding, never into your attic, so moisture does not cause mold and mildew.
Hiring a local duct installer keeps the routing work straightforward and ensures your vent exhausts properly, protecting your home from moisture damage.
No room builds up moisture quite like a bathroom, which is why it's so important that these spaces be properly ventilated. But it's not enough to just add a vent anywhere and call it a day. Their placement plays a significant role in keeping your bathroom dry and mildew-free. So, where do bathroom vents go? This guide will tell you exactly where they should be placed and routed.
A bathroom vent can be placed in only two places—the wall or the ceiling. Where you choose to install it will depend on the ventilation infrastructure you have in place, your bathroom layout, and the size of the bathroom exhaust fan option you install.
To prevent electrical hazards, wall-mounted bathroom vents should be placed a minimum of 60 centimeters away from plumbing fixtures, like your tub or toilet. Usually, that means you’ll want to install them above the top half of the wall, in a spot where they won’t be blocked by furnishings. This option might not be the right pick for you if you’re already dealing with limited bathroom square footage and don’t have any wall space to sacrifice.
With ceiling-mounted vents, proximity to plumbing fixtures isn’t a concern. Also, they aren't obstructed by objects in your bathroom, making them a good pick for small lavatories.
Just like there are only two places to mount a bathroom vent, there are also only two exhaust fan route options.
Ceiling-mounted vents must be routed through the ductwork in your roof to an external exhaust pipe or have special ductwork installed to accommodate them. Whatever you do, ensure that no air is getting ventilated directly into your attic, as this can cause mold and mildew buildup over time.
Wall-mounted vents will need to be routed out through your home’s siding. Because most ductwork is installed through the roof, you may need to install additional ducts to make this possible.


Once your vents are up and running, there are a few things you can do to keep them in good shape.
Anything that could interfere with your vent’s ability to circulate air out of your bathroom should be moved to a different spot. If that’s not possible, consider installing the vent in a different place to begin with, like a free zone on the wall or in the ceiling. Similarly, this can affect how you choose a bathroom exhaust fan, as they come in many different sizes that don’t fit in all types of bathrooms.
Thanks to all the heavy lifting bathroom vents do of circulating out moisture, they need to be cleaned every six months unlike the other vents in your home which won’t need as frequent care. When cleaning, make sure that the electricity is turned off and that no water is running to avoid any risks.
Noticing damages the moment they occur is the best way to avoid the need for costly bathroom vent replacements. If you can’t feel air circulating even though the system is turned on, this is a sign that it’s time to hire a duct installer near you to take a look.
Great company! Price was competitive, technician showed up on time and completed the job (exterior electric Radon fan replacement) quickly. Would hire them again.
As usual with ECO, tech Jordan was outstanding, very professional, very knowledgeable, and very thorough with repairs made to tankless water heaters. Very highly recommend ECO!!!
Raven and crew does absolutely fantastic job. They are very professional if any concerns were to occur with any of her work she always took responsibility and finished out with a great job. I have worked with her business for a year and have always been satisfied. Very trusted business and...
I would recommend this company to anyone! He showed up on time, was friendly, completed a very difficult repair on our dryer vent cover, was responsive, and pricing was extremely fair and competitive. I would have him back to do any of our repairs or cleanings without hesitation!
Ace Fireplace Services' chimney sweep service is truly exceptional. They used advanced technology to ensure a thorough cleaning process, and my chimney has never looked better. I highly recommend their services.
The technician was very professional and friendly. He answered all my questions and was very thorough. He left the fireplace area very clean . He inspected from the roof and advised me as to other work that might need to be done. There was no pressure there. I was very satisfied with the...
Excellent experience with hiring Tether House to Mount our 77’ Samsung TV in our bedroom. Fast, friendly, and knowledgeable. Highly recommend.
On time, clean and finished fast. Windows seem sturdy and the finish is good. Caulking was done with no smudges. Would recommend.
Great job...edging and pre clean up went well with a great job with seal coat. Friendly, efficient and professional.
Good workers and they do a good job.
From average costs to expert advice, get all the answers you need to get your job done.

The best bathroom exhaust fan venting option exits through your roof. However, other choices exist if a roof vent installation is not possible.

Your home’s vent placement matters, so where should return air vents be located? We discuss what factors impact your return vent’s performance.

Exhaust fans push moisture and humidity from your bathroom while keeping the air fresh. There are a variety of fans to choose from with extras to make them more useful. To understand how to choose a bathroom fan, check out our helpful guide.

Is your bathroom fan leaking water? We’ll help you figure out the source of the issue and determine how to fix it (or when to call a pro).

The sweat equity involved in bath fan installation is intense, but having a humidity-free bathroom is worth it. Here's how to install a bathroom fan and get started.

A ductless fan can improve the air quality in a bathroom by drawing air in through a charcoal filter, resulting in cleaner air, but can they remove moisture?