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Top-Rated Central humidifier installers and replacers in West-alton - Updated Nov 2026

Avatar for Fresh Air Heating & Cooling
Fresh Air Heating & Cooling
4.8(
277
)
Central Humidifier - Install or Replace

Serving West-alton, MO and surrounding areas

Approved

In business since 1947

Free estimates

Emergency services offered

"They were super helpful, they rushed the service. They picked uop the unit at night from the manufacturer. They went out of their way. The replacement units are working well and they were installed properly. I have been trusting their services and they have been working on two of my houses for around 20 years now."
Fresh Air Van
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+2

12 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Dunn Heating Air Conditioning and Plumbing
Dunn Heating Air Conditioning and Plumbing
4.7(
274
)
Central Humidifier - Install or Replace

Serving West-alton, MO and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"I needed to replace my parents' 40 year old AC Condenser and coil, and replace it with something that worked with the new furnace my father got installed four years prior. They were able to do the work requested, and also offered to redo the furance installation as the previous company installed it right on the basement floor where any backup/water could possibly get into the system. They were very prompt and showed up on time/on schedule. They were very upfront about costs and pricing and there were no last-minute price changes or hidden fees, which I appreciate. Work was done well and they ensured that everything worked before leaving the job site. The gentlemen working were very professional and understanding. I highly recommend them for anyone looking to replace their HVAC or to correct work that was previously poorly done."
Additional Photos
Response time2 days
13 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Liberty Heating & Cooling
Liberty Heating & Cooling
4.8(
46
)
Central Humidifier - Install or Replace

Serving West-alton, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Emergency services offered

Warranties offered

"Called Sam on Friday for quote for water heater replacement. Said he could do Monday afternoon or Tuesday morning. Received call Monday morning to see if he could come on over to do replacement, what a pleasant surprise! Sam arrived shortly after with water heater we discussed & all supplies needed , no running around to pickup stuff. Job completed in timely manner. Old unit hauled off and job site all cleaned. That’s a big deal to me. Will not hesitate to recommend Liberty to friends & relatives ! Thanks Sam , Dave & Roxanne"
A/C replacement
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+10

6 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for ARCO Heating & Cooling
ARCO Heating & Cooling
New to Angi
Central Humidifier - Install or Replace

Serving West-alton, MO and surrounding areas

Approved

In business since 1963

Free estimates

Warranties offered

For more than 60 years, ARCO Heating & Cooling has been the local HVAC company that residents and businesses turn to for their heating and cooling needs. What began as a small business has grown into a cornerstone of the St. Charles, St. Louis, & Illinois communities, providing dependable service designed to keep our neighbors comfortable year-round. As a family-owned, local HVAC company, we’re more than just a service provider—we’re part of the community. We live and work right here in the St. Charles, St. Louis, & Illinois Metro areas, so we understand the unique climate challenges our neighbors face. This local connection fuels our dedication to providing personalized service and dependable solutions that make life easier for our customers.

AC Data Plate
AC Wiring
AC Wiring 2
AC Voltage Readings
TitleAC Wiring 3

+20

Response time8 hrs
Avatar for Vitt Heating & Air Conditioning Co Inc
Vitt Heating & Air Conditioning Co Inc
4.7(
161
)
Central Humidifier - Install or Replace

Serving West-alton, MO and surrounding areas

In business since 1954

Free estimates

Emergency services offered

"Our A/C failed during a very hot spell in June 2018 in St. Louis. Many service providers we called would not come. We called Vitt and told Jeff, the scheduler, about our problem: we had an old furnace (>50 years old) and had the blower motor rebuilt recently by Commercial Electric. Jeff gave us his cell phone number should we decide to go with Vitt. When I had the blower motor fixed, it was in the trunk of my car. I called Jeff and he sent Vic out that day. Vic and Dave came and removed the blower motor from the car and carried it into the basement. The J box was missing from the motor, and the wires leading to it had been cut too short. Vic spoke to Commercial Electric to confirm the correct approach to fixing the wiring. He drilled a new hole to compensate for the shortened wires and moved the capacitor to protect it from touching the filters in the furnace. He checked the relay box and made sure that the furnace breaker was working. After the A/C was successfully turned on, Vic and Dave checked the condenser for heat and then hosed it off. Both men were polite and listened to my information on the history of the furnace and its problems. They asked me appropriate questions about previous service companies. They were patient about my concerns and knowledgeable regarding older furnaces. The bill was reasonable for service provided by 2 men."
Military Discounts (retired & active)
Senior Citizen Discounts
Residential HVAC
Multifamily & Commercial Installation & Maintenance
Professionally Installed Ducts

+6

Response time3 days
Response rate100%
Recommended by91%of homeowners
Avatar for Air Duct Doctors
Air Duct Doctors
4.7(
781
)
Central Humidifier - Install or Replace

Serving West-alton, MO and surrounding areas

In business since 1999

Free estimates

Emergency services offered

"Fantastic!! We had never had our ducts cleaned or sanitized. To my knowledge it was the first time ever and our house is 24yrs old. I can breathe again and the dust that is normally there 3 days after cleaning is gone. Nothing like before! The man explained all of my options clearly and did an amazing job. It was alot of work since we had just about everything done except the dryer vent because it is brand new. Kevin was on his own for the day as his helper was sick and he still had a good attitude and did a spectacular job. Didn't leave a mess either and cleaned up great before he was finished!"
Before Vent Cleaning
After Vent Cleaning
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Recommended by92%of homeowners
Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)
Central Humidifier - Install or Replace

Serving West-alton, MO and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Jim was in the area here in Nashville, and I spoke with him about my computer. He was extremely knowledgeable about everything computer related, and seemed very familiar with the problems I described having with my computer.  I also had a very old fax machine that I was manually having to scan documents and fax them, over and over again. Sometimes, even the same ones. Jim advised me on what kind of printer to get, as well as what type wireless network to get and even went with me to Staples to purchase the items (That was over and beyond the call of duty in my opinion). I am a business owner for a trucking logistics company, and my computer is my livelihood, so I really trusted that Jim would get my system working, and help me with my scanning and faxing issues.



Jim arrived on time, and got to work right away.  He took the time unbox my printer, set it up for me, he also set up my wireless network, and the entire time he helped me understand exactly what was going on.  He showed me how to set up my wireless, how to make changes to it, he even went through the manual on the printer with me, and showed me how I could scan documents directly to my computer and save them....and then just fax them out all from my computer!  He then started cleaning out some of the toolbars and bad software I had inadvertently installed, then he ran the virus scanner, still showing me how to do it myself, and explaining to me how I could avoid these issues in the future.  I have to say I have never had such excellent customer service from a computer repair person. He removed the viruses, and even offered to put a remote software package on so that if I ever have any problems in the future, he could access my machine remotely, and help me fix them, essentially saving me the cost and time for the future.



I would HIGHLY recommend Jim and North Alabama Technical Services for any and all computer work. Jim was an absolute pleasure to work with, and again, I've never felt so well taken care of with my computer issues before. If I could give him all A+'s I would.  I have seen a recent review that mentions that he takes advantage of businesses, but he only charged me $75 and gave way more than that in service. I really appreciate him for all he did for me.
"
2014 Super Service Award Winner!
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Recommended by97%of homeowners
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FAQs for central humidifier installation and replacement projects in West-alton, MO

A crawl space dehumidifier is a worthwhile investment, particularly in humid climates or if you've noticed musty odors, mold growth, or wood deterioration. Though costs range from $3,000 to $9,200, this investment helps prevent structural damage that could require far more expensive repairs later. Beyond structural protection, a properly dehumidified crawl space contributes to better overall indoor air quality and may reduce allergens throughout your home. Consider having a professional assessment to determine if your specific situation warrants this investment.

Addressing crawl space moisture effectively often requires a combination of solutions. A complete approach includes encapsulation plus dehumidifier installation. For minor moisture issues, a basic dehumidifier starting at $1,500 may suffice, while severe problems in larger spaces could require systems costing up to $14,000. The most effective moisture control strategy depends on your specific conditions, making a professional assessment valuable for determining the most cost-effective approach for your situation.

For a crawl space measuring 1,500 square feet, you'll need a dehumidifier with a daily capacity of 30 to 50 pints, with unit costs ranging from $150 to $600. Your local climate and existing moisture levels may necessitate adjusting this capacity—homes in particularly humid regions might benefit from higher-capacity units. Professional installers can measure your specific humidity conditions and recommend equipment that is appropriately sized, balancing initial cost with operating efficiency for your unique situation.

Crawl space dehumidifiers add $300 to $500 to your annual electricity expenses when operating continuously. Energy-efficient models reduce this consumption by roughly 15 to 30% compared to standard units. Most contemporary dehumidifiers feature humidity sensors that automatically cycle operation based on current conditions, helping manage energy usage. Proper crawl space encapsulation significantly improves efficiency by creating a controlled environment that requires less dehumidifier runtime, thereby reducing ongoing electricity costs.

The West-alton, MO homeowners’ guide to central humidifier installations and replacements

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