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Find Exhaust fan installation pros in Downs

Avatar for Tri-State Water, Power & Air

Tri-State Water, Power & Air

New on AngiNew on Angi
Approved Pro

Tri-State Water, Power & Air

New on AngiNew on Angi
Approved Pro
101 local quotes requested
33 years of experience

We are the experts in the field of Whole Home Generator Sales and Installation, with over 20 years of experience in the game. We provide turn-key installation by licensed professionals - 24 hour emergency service - Remote Monitoring - Long term maintenance and service by factory trained technicians.

We are the experts in the field of Whole Home Generator Sales and Installation, with over 20 years of experience in the game. We provide turn-key installation by licensed professionals - 24 hour emergency service - Remote Monitoring - Long term maintenance and service by factory trained technicians.


Avatar for Accent Tel USA

Accent Tel USA

4.89(
9
)
Approved Pro

Accent Tel USA

4.89(
9
)
Approved Pro
Customers say: Quick response
16 years of experience
Free onsite estimate

Our Company provides a one-stop solution for all of your voice, internet, and telecom needs. Leveraging the Cloud we provide your Office state-of-the-art telephones for little or no upfront cost striving to keep your monthly costs the same. Sound too good to be true? Give us a call and we will show you how.

"Telephone System - Install or Upgrade - For Business "

Anthony O on September 2025

Our Company provides a one-stop solution for all of your voice, internet, and telecom needs. Leveraging the Cloud we provide your Office state-of-the-art telephones for little or no upfront cost striving to keep your monthly costs the same. Sound too good to be true? Give us a call and we will show you how.

"Telephone System - Install or Upgrade - For Business "

Anthony O on September 2025


Bloomington Normal Maintenance and More

New on AngiNew on Angi
Approved Pro

Bloomington Normal Maintenance and More

New on AngiNew on Angi
Approved Pro
4 years of experience
Free onsite estimate

Bloomington Normal Maintenance and More is committed to excellence in every aspect of our business.We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Bloomington Normal Maintenance and More is committed to excellence in every aspect of our business.We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.


Swinderman Engineering Services

4.88(
30
)
Approved Pro

Swinderman Engineering Services

4.88(
30
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 years of experience

Swinderman Engineering Services is Central Illinois’ leading Technology Installation Company. We handle all of your low voltage cabling and custom installation needs from Home Theater to Surveillance Camera Systems to Access Control.

"I was very pleased with my tv mount installation. Only took an hour and it looks great. They were able to perform the service within two days after I made an inquiry. I will use them for any other home audio/video projects that I need to have done."

John G on May 2021

Swinderman Engineering Services is Central Illinois’ leading Technology Installation Company. We handle all of your low voltage cabling and custom installation needs from Home Theater to Surveillance Camera Systems to Access Control.

"I was very pleased with my tv mount installation. Only took an hour and it looks great. They were able to perform the service within two days after I made an inquiry. I will use them for any other home audio/video projects that I need to have done."

John G on May 2021


"Absolute pros."

Will K on October 2023

"Making It All Work" since 1976, Wm. Masters, Inc. has been providing quality service, at a timely manner and at competetive rates for all your plumbing, electrical, heating & air conditioning, and air duct cleaning needs.

"Absolute pros."

Will K on October 2023


Avatar for JMC Electric

JMC Electric

5.00(
7
)
Approved Pro

JMC Electric

5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
133 local quotes requested

Hello I’m an electrician that’s going to make things work and right never take shortcuts on making things right able to do anything that have to do with wires light fan outlets switches panel boards service upgrades doing all new or making all work again

"I really recommend Manuel very professional and punctual. he did it great job replacing my main electrical box, we are happy with everything"

Jeannette P on October 2025

Hello I’m an electrician that’s going to make things work and right never take shortcuts on making things right able to do anything that have to do with wires light fan outlets switches panel boards service upgrades doing all new or making all work again

"I really recommend Manuel very professional and punctual. he did it great job replacing my main electrical box, we are happy with everything"

Jeannette P on October 2025




Avatar for Alt Landscape

Alt Landscape

No reviews yet

Alt Landscape

No reviews yet
Emergency services offered

If you need a landscaper or a handy man for a quick job to get done right youve came to the right place. We have been working with woodworking, landscaping and maintenance for the past 3 years at various different businesses.

If you need a landscaper or a handy man for a quick job to get done right youve came to the right place. We have been working with woodworking, landscaping and maintenance for the past 3 years at various different businesses.


Avatar for HWMF CONSTRUCTION CO.

HWMF CONSTRUCTION CO.

5.00(
1
)

HWMF CONSTRUCTION CO.

5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

-Specializing in Garages, Basements, & Backyards, we can build, rebuild, or restore your home. -Local Owner/Operator here in the Bloomington-Normal area. -Free estimates, $250 min. -No sketchy subcontractors! We are all professionals with clean records and good morals. -Fully licensed and insured.

"Dawson was great. He showed up on time, went above and beyond my expectations, and his pricing was very reasonable. I would strongly recommend him to anyone."

Preston B on January 2024

-Specializing in Garages, Basements, & Backyards, we can build, rebuild, or restore your home. -Local Owner/Operator here in the Bloomington-Normal area. -Free estimates, $250 min. -No sketchy subcontractors! We are all professionals with clean records and good morals. -Fully licensed and insured.

"Dawson was great. He showed up on time, went above and beyond my expectations, and his pricing was very reasonable. I would strongly recommend him to anyone."

Preston B on January 2024

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Exhaust 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 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.

Leaving an exhaust fan on constantly isn’t ideal. While it helps remove moisture and odors, continuous use will lead to wear and tear, higher energy costs, and even fire risks if the motor overheats. Bathroom fans should run for 20 to 30 minutes after a shower, while kitchen exhaust fans should be used only when cooking or clearing air.

Not all exhaust fans need venting, but most do. Bathroom fans and range hoods work best when vented outside to remove moisture, odors, and pollutants. Some ductless range hoods use filters instead, but they don’t remove air—just recirculate it. Proper venting ensures better air quality and efficiency.

If your fan is ceiling-mounted and will vent through the attic to the outside, you will need an electrician to handle the wiring, and if you need to install ductwork for the first time or replace existing ductwork, you will need an HVAC professional as well.

The Downs, IL homeowners’ guide to exhaust fan installation services

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