Top-rated bathroom fan installation pros.

Get matched with top bathroom fan installation pros in O Fallon, MO

Enter your zip and get matched with up to 5 pros

Need a pro for your bathroom fan installation project in O Fallon, MO?

Select your specific project to find the pro for you.

TRUSTED BY O FALLON, MO HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon3k+
    Verified bathroom fan installations reviews

Find Bathroom fan installation pros in O Fallon

Down to the Wire, LLC
5.0(
6
)
Bath Exhaust Fan - Install

Serving O Fallon, MO and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality and customer service, that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate, with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!

Response time1 day
Response rate100%
23 neighbors recently requested a quote
C Hatcher Construction
4.8(
11
)
Bath Exhaust Fan - InstallBath Exhaust Fan - Repair

Serving O Fallon, MO and surrounding areas

Approved

Customers say: True professional

"No matter what problem you have, Clint is the man for the job! He not only fixed the plumbing issues I discovered during a remodel but was able to fix the electrical issues, flooring problems, install the cabinets, cut and grout backsplash tile, and fix a handful of minor issues that came up along the way. Clint is on time, dependable, courteous and respectful of your property - he even cleans up afterwards! I could not have completed this project without Clint Hatcher and highly recommend him to anyone who needs work done - you will not be disappointed!!"
Response time1 day
Response rate100%
Recommended by70%of homeowners
Spartan Electric
4.3(
36
)
Bath Exhaust Fan - InstallBath Exhaust Fan - Repair

Serving O Fallon, MO and surrounding areas

Approved

Customers say: Quick response

"Tom from Synergy did the bid for under cabinet lighting install, however sent someone else to do the job. Originally discussed with Tom that he would use a regular converter box inside the cabinet and place a dimmer switch on the wall, but the other guy he sent wasn't aware of this and placed the dimmer converter in the cabinet. This has resulted in us having to use the dimmer switch inside the cabinet instead of on a wall switch -- not what I requested. Also, I discussed with Tom installing an additional outlet in our kitchen during the bid process. After he left I noticed he did not include that on the written bid. The guy he sent didn't know about it either. The outlet was installed however. Overall, I was charged $95 additional over the bid and didn't get exactly what I wanted in regard to the dimmer switch for under cabinet lighting. Both electricians were very nice and professional, but there was definitely a communication problem in regard to the installation of the under cabinet lighting. Perhaps I should have clarified the issue more strongly, or perhaps I didn't understand. Either way, I'm happy with the lighting overall, but not 100%."
2 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for FixPro
FixPro
5.0(
5
)
Bath Exhaust Fan - InstallBath Exhaust Fan - Repair

Serving O Fallon, MO and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

FixPro is a locally owned and operated handyman service proudly serving St. Louis, St. Charles, Lincoln, Warren, Franklin, and Jefferson Counties. We specialize in high-quality home repairs, carpentry, drywall, painting, flooring, deck repair, and general maintenance—handling everything from small fixes to larger improvement projects with precision and professionalism.\n\nWith years of hands-on experience across construction, maintenance, and service industries, I built FixPro to deliver what most contractors don’t: clear communication, reliable scheduling, and work done right the first time. We show up when we say we will, diagnose issues properly, and provide straightforward solutions without cutting corners.\n\nOur approach is simple—treat every home like it’s our own. We focus on clean workmanship, long-term durability, and customer satisfaction. If you want it done right the first time, FixPro is ready.\n\nNeed Something Fixed? Hire a Pro.

1 neighbors recently requested a quote
Avatar for Dirty Hands
Dirty Hands
4.6(
10
)
Bath Exhaust Fan - Install

Serving O Fallon, MO and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"I hired Steven to help me replace some interior doors and jams. He is very personable, professional, and did a quality job at a fair price. So based on all that I just had him back to remodel the front of my garage by taking out one 16" door and framing out for two 9" doors. Again, a nice job in a timely manner which was important because the front of my garage had to be open for a few days. Now I am talking to him about a front & rear deck project I am planning out."
1
1
1
1
1

+94

Response time6 hrs
Response rate98%
24 neighbors recently requested a quote
Avatar for Local Handyman St. Louis
Local Handyman St. Louis
4.6(
9
)
Bath Exhaust Fan - Install

Serving O Fallon, MO and surrounding areas

Approved

In business since 2025

Warranties offered

Small jobs welcome

"I had Local Handyman help me with a long list of “to do’s” I had been avoiding. They helped me with multiple interior and exterior projects. Their communication from beginning to end was fabulous. They helped me evaluate the scope of the work against other bids I received. Their work was professional, their men arrived on time and they completed everything in a timely and quality manner. I will hire them again."
Wood Chip
Repaired stair
Sunroom before
Sunroom before
Sunroom before

+11

2 neighbors recently requested a quote
...
Showing 1-10 of 184
Bathroom Fan Installation questions, answered by experts

Most duct booster fans are not designed to run continuously, though some models can be programmed for constant operation. Typically, they are controlled by the user via a switch, controls on the unit itself, or by being wired to the HVAC system's thermostat. Wiring the fan to a thermostat allows it to run automatically only when heating or cooling is active, which saves energy and is an effective way to activate the fan only when needed to address issues like uneven room temperatures.

It depends on your budget and cooling needs. Whole-house fans keep your home breezy by pulling in cool air and pushing out hot air. In places with milder climates, they can replace air conditioning. On the other hand, Attic fans focus on keeping your attic cool—not your entire house. Often, whole-house fans cost more than attic fans, with installation ranging from $600 to $3,600.

Selection relies on matching fan size and power to attic volume and ensuring compatibility with home electrical systems and ventilation requirements.

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.

To convert a ceiling fan to wireless, you’ll need to install a canopy module to access the lighting and fan controls. Many options are available, all of which help you control specific elements of your ceiling fan, so you have plenty of choices depending on your needs.

The O Fallon, MO homeowners’ guide to bathroom fan installations

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