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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon941
    Verified bathroom fan installations reviews

Verified Reviews for Bathroom Fan Installation pros in Markham, IL

*The Angi rating for Bathroom Fan Installation companies in Markham, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Bathroom Fan Installation needs.

*The HomeAdvisor rating for Bathroom Fan Installation companies in Markham, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Bathroom Fan Installation needs.

Last update on February 18, 2026

Find Bathroom fan installation pros in Markham

Avatar for For Heart Enterprises
For Heart Enterprises
4.9(
31
)

Serving Markham, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Warranties offered

"Great work- replaced a window air conditioner for me. Went above and beyond twice! What a nice guy too! And same day service!HIGHLY reccomend!"
Handyman Services Project
Handymen Project
Handyman Services Project
Additional Photos
Additional Photos

+18

2 neighbors recently requested a quote
Recommended by29%of homeowners
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Avatar for Integrated Systems Technology
Integrated Systems Technology
4.4(
107
)

Serving Markham, IL and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"Chester was great. He stayed in touch with me until the the appliances was delivered. He was prompt in availability to get it installed. We did run into a few unexpected issues but he had the tools to make the adjustments and get the job done. Great guy and professional."
Recommended by89%of homeowners
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Avatar for Imperial electric
Imperial electric
5.0(
17
)

Serving Markham, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"The service guy came out very quickly. Had a smart thermostat installed. He walked me through setting up the app. Did a fast and a great job. I highly recommend this company if you want it done and done right."
155 neighbors recently requested a quote
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All Service Calls, LLC
4.5(
41
)

Serving Markham, IL and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"I cannot say enough good things about Abraham and his team. They were indispensible during a challenging and stressful move. Not only did they do a superb job of installing a ceiling fan to an 18ft ceiling, multiple patch repairs, seamlessly replacing and installing bathroom extractor fans that into non standard sized spaces, filling countless nail holes and repainting, and reattaching a dislodged dishwasher, Abraham did all of this amidst the chaos of a move and made MULTIPLE trips to Home Depot to color match paints when I provided the wrong cans. He was patient, thorough, and went WAY above and beyond any expectations in both service, execution, and generosity. If you have anything you need done in your home, make these guys your first call!"
Response time3 hrs
Response rate99%
7 neighbors recently requested a quote
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Power House Electric
4.4(
13
)

Serving Markham, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2025

"We feel so blessed to have had Alton as our electrician. We experienced a sudden electrical nightmare and he came in and saved the day. He worked tirelessly for months to fix our issues and was such a pleasure to be around. He is extremely punctual and professional. We highly recommend for your small jobs your big convoluted jobs as well. He’s equipped for them all!"
Response time11 hrs
1 neighbors recently requested a quote
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Bathroom Fan Installation questions, answered by experts

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.

The most efficient ceiling fan height is 8 to 9 feet from the floor to the fan blades. For ceilings higher than 9 feet, a downrod can be used to lower the fan to the optimal height. This positioning ensures adequate air circulation and maximizes the cooling effect. Remember, fans should be installed at least 7 feet above the floor for safety.

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.

Most ceiling fans have a lifespan of anywhere from five to 15 years or 10 years on average. Just how long your ceiling fan lasts depends on the quality of the parts, how much it’s used, and how well you maintain it. A fan with a weak motor that runs on the medium setting nonstop is likely to have a shorter lifespan compared to a fan with a powerful motor that runs on the slowest setting for air circulation.

Blower fans are better for preventing mold growth than dehumidifiers because they target the damaged areas and increase the rate of evaporation, which dries out the building materials. Ideally, you should run blower fans and a dehumidifier, as this will allow the fans to move dry air over your damaged building materials, drying out the space even more quickly.

The Markham, IL homeowners’ guide to bathroom fan installations

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

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