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Top-Rated Bathroom fan installation pros in Spruce - Updated Nov 2026

Avatar for New Janitorial Services
New Janitorial Services
5.0(
1
)
Bath Exhaust Fan - InstallBath Exhaust Fan - Repair

Serving Spruce, MI and surrounding areas

In business since 2002

Emergency services offered

Hello this is Jason Garcia with New Janitorial Services we provide Carpet Cleaning, Commercial Floor Cleaning, Industrial & Commercial Cleaning, Hardwood Floor Refinishing. New Janitorial Services provides the best Cleaning Services as well as the best prices all across Michigan. We have 25+ years of experience and you can reach me at (313)768-4756 or at (313)212-1338 we do FREE ESTIMATES.

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Bathroom Fan Installation FAQs, answered by experts

The square footage of your room will dictate the correct ceiling fan blade size. For example: 

  • Rooms smaller than 75 square feet require a fan that is 29 to 36 inches.

  • Rooms up to 175 square feet require 42- to 48-inch fans.

  • Rooms up to 350 square feet require 52- to 56-inch fans.

  • Expansive spaces over 350 square feet need a fan larger than 60 inches.

Ceiling fans are very often worth the investment because they improve comfort in your living space and help reduce utility bills. In the late spring and early fall—and even in the summer in some areas—homeowners with ceiling fans can often get away with open windows and fans, which can cut down on cooling bills and also reduce wear and tear on the HVAC system. Over time, ceiling fans can pay for themselves by saving you money on electric bills and air conditioner repair and maintenance.

Fan power is measured by CFM, or cubic feet per minute. For every 1,000 feet of square footage in your attic, you need a minimum of 700 CFM. Steeper roofs may need larger fans or about 840 CFM.  You can figure the size of attic fan you need by multiplying the square footage of your attic floor by 0.7. (multiply by 1.2 for a steep roof and 1.15 for a dark roof). That number is the CFM required for your fan to run efficiently.

When choosing a mounting bracket, you have the option between flush mounts and downrod mounts. Flush mounts are the better option for low ceilings as they feature a lower profile. Downrod mounts are the optimal choice for rooms with high ceilings as they offer a pole that adjusts the height of the fan.

If you think your fan needs to be oiled, the first thing that you have to do is cut the power to the fan. The best and safest way to do this is by flipping the circuit breaker that leads to that room.  Depending on the model of your fan, you may need to remove a cover. Look for a hole labeled oil. If there isn't one, check the manual or look for schematics online. Once located, use the recommended lubricant or spray. 

The Spruce, MI homeowners’ guide to bathroom fan installations

From average costs to expert advice, get all the answers you need to get your job done.