Top 10 HVAC Companies in O'Fallon, MO

Porch Pro Headshot Academy Air
HVAC Contractors
Serves O'Fallon, Missouri
(2,959)
Academy Air Heating and Air Conditioning is a full service company in St. Louis MO specializing in both residential and commercial operations. Academy Air is proudly family owned and operated and has been in business for over 40 years. All technicians are fully certified; factory trained and must pa...Read more about Academy Air
Academy Air Heating and Air Conditioning is a full service company in St. Louis MO specializing in both residential and commercial operations. Academy Air is proudly family owned and operated and has been in business for over 40 years. All technicians are fully certified; factory trained and must pa...Read more about Academy Air
Porch Pro Headshot Budget Air Conditioning, Heating and Plumbing
HVAC Contractors
Serves O'Fallon, Missouri
(3,139)
Porch Pro Headshot Healthy Home Pest Control and Services
HVAC Contractors
Serves O'Fallon, Missouri
(988)
I chose to work in this industry because Healthy Home Pest Control and Services was founded in 2016 with a small loan, two trucks and 2 employees. Our mission was to operate like a small town company-were reputation is everything. and unwavering focus on customer care. . We started in this industry...Read more about Healthy Home Pest Control and Services
I chose to work in this industry because Healthy Home Pest Control and Services was founded in 2016 with a small loan, two trucks and 2 employees. Our mission was to operate like a small town company-were reputation is everything. and unwavering focus on customer care. . We started in this industry...Read more about Healthy Home Pest Control and Services
Porch Pro Headshot NPM HEATING & COOLING LLC
HVAC Contractors
Serves O'Fallon, Missouri
If you are looking for heating and air conditioning services in the St. Louis or St. Charles area, you've come to the right place! NPM Heating and Cooling, works all over St Louis County & St. Charles County. Providing services such as central air conditioning repairs, floor heater replacements, air...Read more about NPM HEATING & COOLING LLC
If you are looking for heating and air conditioning services in the St. Louis or St. Charles area, you've come to the right place! NPM Heating and Cooling, works all over St Louis County & St. Charles County. Providing services such as central air conditioning repairs, floor heater replacements, air...Read more about NPM HEATING & COOLING LLC
Porch Pro Headshot Air Excellence
HVAC Contractors
Serves O'Fallon, Missouri
(374)
Air Excellence Heating & Cooling is one of the leading service providers for your HVAC needs serving the greater St. Louis area. Our company is a local, woman-owned business devoted to serving residential clients throughout the St. Louis area. Our dedication to providing quality service comes all th...Read more about Air Excellence
Air Excellence Heating & Cooling is one of the leading service providers for your HVAC needs serving the greater St. Louis area. Our company is a local, woman-owned business devoted to serving residential clients throughout the St. Louis area. Our dedication to providing quality service comes all th...Read more about Air Excellence
Porch Pro Headshot AnC Heating & Cooling
HVAC Contractors
Serves O'Fallon, Missouri
(284)
"AnC replaced my mother-board on my furnace and cleaned it for it's yearly maintenance check. They get my repeat business as they are honest, trustworthy,professional, experienced and always make sure the customer is happy. I highly recommend them. I happy so very glad and relieved I finally fou...Read more about AnC Heating & Cooling
"AnC replaced my mother-board on my furnace and cleaned it for it's yearly maintenance check. They get my repeat business as they are honest, trustworthy,professional, experienced and always make sure the customer is happy. I highly recommend them. I happy so very glad and relieved I finally fou...Read more about AnC Heating & Cooling
Porch Pro Headshot Reliable Heating & Cooling
HVAC Contractors
Serves O'Fallon, Missouri
(100)
"Reliable is, as promised, reliable. They show up promptly, do the work you need give a fair price, and don't try to sell you services or goods you do not need. I would call them first for every HVAC or plumbing need."
"Reliable is, as promised, reliable. They show up promptly, do the work you need give a fair price, and don't try to sell you services or goods you do not need. I would call them first for every HVAC or plumbing need."
Porch Pro Headshot Countywide Heating & Cooling
HVAC Contractors
Serves O'Fallon, Missouri
(45)
Countywide Heating & Cooling is a full service HVAC company serving the St. Louis city, St. Louis County, Jefferson County, Wildwood, Ballwin, Kirkwood, University City, Ladue, Town and Country, areas and many more! Countywide services all equipment brands including Ruud, Rheem, Trane, Lennox, Goodm...Read more about Countywide Heating & Cooling
Countywide Heating & Cooling is a full service HVAC company serving the St. Louis city, St. Louis County, Jefferson County, Wildwood, Ballwin, Kirkwood, University City, Ladue, Town and Country, areas and many more! Countywide services all equipment brands including Ruud, Rheem, Trane, Lennox, Goodm...Read more about Countywide Heating & Cooling
Porch Pro Headshot West County Heating & Cooling Inc
HVAC Contractors
Serves O'Fallon, Missouri
(91)
West County Htg & Clg is a family owned and locally operated heating and air conditioning company serving the area since 1990. Technicians are factory trained and licensed. Services offered is service of any brand equipment, installation of new heating and cooling systems as well as geothermal syst...Read more about West County Heating & Cooling Inc
West County Htg & Clg is a family owned and locally operated heating and air conditioning company serving the area since 1990. Technicians are factory trained and licensed. Services offered is service of any brand equipment, installation of new heating and cooling systems as well as geothermal syst...Read more about West County Heating & Cooling Inc
Porch Pro Headshot Drymaster Carpet & Upholstery
HVAC Contractors
Serves O'Fallon, Missouri
(35)
"Last week my youngest daughter got very sick and threw up all over the inside of my wife's minivan. I called Drymaster and Steve came out right away and cleaned the interior of the van. The van looks as good as it did when it was new 4 years ago and more importantly, the smell is gone. The price ...Read more about Drymaster Carpet & Upholstery
"Last week my youngest daughter got very sick and threw up all over the inside of my wife's minivan. I called Drymaster and Steve came out right away and cleaned the interior of the van. The van looks as good as it did when it was new 4 years ago and more importantly, the smell is gone. The price ...Read more about Drymaster Carpet & Upholstery

Top questions to ask before hiring an hvac company

What type of insurance do you have? Heating, ventilation and air conditioning (HVAC) professionals work on a variety of mechanical areas of the home. You'll want to ask specific questions regarding professional training and licensing, as well as what types of insurance they have (for example, mold, air pollution or worker's compensation). It's fair to ask for the dollar amounts they are covered and a quality professional will show you verification of coverage.

HVAC professionals attend to a home's thermal needs as well as air quality. Because of the technical aspects of HVAC work, find out the scope of work your professional can perform. You may only need your heating unit serviced however, if this professional also specializes in energy efficiency, mold assessment, or offer ways for you to save on energy costs, you may want to hire them for future projects. Because some equipment is gas-powered, your professional should be able to answer questions about installing gas lines and permitting.

Ask about guarantees on labor or warranties on parts for your HVAC project. It's common to have a time limitation on parts and equipment. Save any paperwork related to your project so you can refer back to instruction manuals or serial numbers.

When working with a heating and cooling professional, ask if their company offers pricing incentives to encourage you to hire them on a regular basis. It's common to have your equipment inspected and serviced at least once a year. Your HVAC company may also offer special pricing on filters, ventilation cleaning or energy assessments.

Regardless of the scope of your project, find out what you need to do to prepare your home for their visit. For example, the HVAC professional will need access to the areas in question and may need access to other mechanical or ventilation points. Make sure pets and children are kept out of the way. Ask if your project will involve removing dry wall or making any other structural changes – you may need to hire a professional drywall contractor to patch up HVAC work. If you are adding a unit that may contribute to carbon monoxide within the home, find out if you need to purchase a carbon monoxide detector.

Recent reviews for O'Fallon HVAC Contractors

11489

Their name says it all! Very reliable, always do a great job, and show up when they say the will. Highly recommend!

- Laura Michel
11601

Highly recommend; not only were they "reliable" & courteous, they also cleaned up! I will have them for all my heating and cooling needs.

- Anna Brandt
12538

Reliable is just that, reliable! Fair pricing and sensible repair/replace recommendations. Dependable after hours service. Clean installs. As an apartment manager, I've had PLENTY of experience with this company and many others in the St. Louis area. ...

- Jesse York
11490

Reliable Heating and Cooling is THE BEST! Their customer service is fantastic and they are so knowledgeable and HONEST with their estimates and service calls. I ONLY call Reliable.

- Allison Dolak
11672

There the best and very honest!

- Ralph Frank
11496

thank you for the honest and fast service... I would highly recommend

- justin hurayt
37799

Highly recommend Drymaster to all, we have used them for both carpet cleaning and tile. The cleaning for both exceeded our expectations, the carpet not only looked amazing it smelt nice and fresh and the tile looked great as well. Mr. Brent followed up...

- Ron-Rhonda Neupert
37804

I used Dry Master Carpet & Upholstery to clean the interior if my car. I was totally floored when I saw the results. My interior is beige and I have a three year old grandaughter. I didn't think anything or anyone could get them cleaned let alone look...

- Barb Stine-Dupuis
37794

You wanna talk about service with a smile. Mr . Brent was on time fast and fun to talk to. He was only at my house a little over a hour and my carpets look as good as they did day I first stepped on them. Thanks Mr.Brent

46282

This is probably one of the worst companies I have ever dealt with.

- Roger Daily
298739

They came out and said we had to pay ahead of time. They charged 179.00. They were here for 5 minutes and left. It wasn’t worth that much money. Obviously I have to work harder then they do for my money

- Margaret Ramires
258565

Michelle came the next day to do an inspection and spent over an hour in our home, thoroughly explaining our issue and potential treatment options! She was kind, courteous, and we did not feel ashamed or judged in any way. We were able to schedule the tre...

- Kyli Patterson

Everything You Need to Know About O'Fallon HVAC Companies

What zip codes in O'Fallon have the best HVAC Contractors?

Below we've listed O'Fallon zip codes that have great selections of hvac contractors:

  • 63341: 3 HVAC Contractors.
  • 63367: 1 HVAC Contractors.
  • 63368: 2 HVAC Contractors.
  • 63385: 1 HVAC Contractors.
  • 63366: 3 HVAC Contractors.
  • How does invoicing/payment work for most HVAC Contractor projects in O'Fallon?

    Every project differs, but you should ask any hvac contractor for an estimate, before they do any work. In fact, ask for their general payment terms before any hvac work is done.

    If the job is large and going to take longer than a day, it's common practice for hvac contractors to request a down payment. Usually, this will be around 25% so they can commence work on your hvac contractor project.

    If it's a quick job, you'll likely be given an invoice/bill when the job is complete. Then it's up to you and the hvac contractor to determine if you pay immediately or can send payment at a later date.

    What should I check for once my HVAC Contractor in O'Fallon has finished working?

    Every hvac project is going to have different results, but here are a few things to check for once any hvac company has told you they've finished the job:

    • Obviously you want to do a visual inspection. Even if you're unfamiliar with hvac work, this gives you the opportunity to ask questions (even basic ones like, what did you do?).
    • Ask the hvac contractor to describe what they did. Whether your hvac project was a repair job or a building job, have them run you through what was done.
    • Compare the description provided on your hvac project estimate to the work completed. Did the professional do what was promised?
    • Request that the hvac contractor do a follow-up visit to check on the work. Most professionals are willing to do this, especially if you ask them.

    All HVAC Companies in O'Fallon, MO

    Porch Pro Headshot Heating and Cooling Handyworks
    HVAC Contractors
    Serves O'Fallon, Missouri
    (31)
    I am a Heating, Ventilation and Air Conditioning Contractor, I can repair or replace your HVAC system and water heater, I am licensed, bonded and insured. If you need a Plumber, Carpenter or Electrician, I also provide General Home Improvement Services, such as replacing faucets, toilets, shower val...Read more about Heating and Cooling Handyworks
    I am a Heating, Ventilation and Air Conditioning Contractor, I can repair or replace your HVAC system and water heater, I am licensed, bonded and insured. If you need a Plumber, Carpenter or Electrician, I also provide General Home Improvement Services, such as replacing faucets, toilets, shower val...Read more about Heating and Cooling Handyworks
    Porch Pro Headshot High Ridge Heating & Cooling
    HVAC Contractors
    Serves O'Fallon, Missouri
    Is your AC or heating unit on its last leg? Do you need HVAC services before the seasons change? Rely on the experts at High Ridge Heating & Cooling for all of your heating and cooling needs. We offer complete HVAC service and installation for both residential and commercial properties. Our HVAC ser...Read more about High Ridge Heating & Cooling
    Is your AC or heating unit on its last leg? Do you need HVAC services before the seasons change? Rely on the experts at High Ridge Heating & Cooling for all of your heating and cooling needs. We offer complete HVAC service and installation for both residential and commercial properties. Our HVAC ser...Read more about High Ridge Heating & Cooling
    Porch Pro Headshot Schraer Heating & Air Conditioning
    HVAC Contractors
    Serves O'Fallon, Missouri
    (66)
    Established in 1945, Schraer Heating & Air Conditioning is an HVAC specialist that is based in Warrenton and offers furnace maintenance, water heater inspection and more. In November of 2012, a property owner contracted them to do a kitchen remodel using a permit acquired from Saint Louis County.
    Established in 1945, Schraer Heating & Air Conditioning is an HVAC specialist that is based in Warrenton and offers furnace maintenance, water heater inspection and more. In November of 2012, a property owner contracted them to do a kitchen remodel using a permit acquired from Saint Louis County.
    Porch Pro Headshot JT Dunn Climate Control  LLC.
    HVAC Contractors
    Serves O'Fallon, Missouri
    (1)
    Dunn Heating & Cooling is a full-service residential and commercial heating and air conditioning company committed to providing our customers with the finest professional service, installation, maintenance and indoor air quality at a fair price. From heating and cooling equipment installations, rep...Read more about JT Dunn Climate Control LLC.
    Dunn Heating & Cooling is a full-service residential and commercial heating and air conditioning company committed to providing our customers with the finest professional service, installation, maintenance and indoor air quality at a fair price. From heating and cooling equipment installations, rep...Read more about JT Dunn Climate Control LLC.
    Porch Pro Headshot AllBright Systems 2 LLC
    HVAC Contractors
    Serves O'Fallon, Missouri
    (13)
    AllBright Systems 2 LLC Bethalto, IL, 62010 (618) 401-1390 AllBright Systems 2 LLC offers professional janitorial services in Bethalto, IL. Do not hesitate to contact us right away! Professional Office Cleaning, Carpet Cleaner, Window Cleaning Service, Commercial Cleaning Expert Rosewood Heights IL...Read more about AllBright Systems 2 LLC
    AllBright Systems 2 LLC Bethalto, IL, 62010 (618) 401-1390 AllBright Systems 2 LLC offers professional janitorial services in Bethalto, IL. Do not hesitate to contact us right away! Professional Office Cleaning, Carpet Cleaner, Window Cleaning Service, Commercial Cleaning Expert Rosewood Heights IL...Read more about AllBright Systems 2 LLC
    Porch Pro Headshot Windows & the Works
    HVAC Contractors
    Serves O'Fallon, Missouri
    Windows & the Works
    Windows & the Works
    Porch Pro Headshot Sherlock Home Remodeling Agency, Inc.
    HVAC Contractors
    Serves O'Fallon, Missouri
    Complete residential remodeling with trade professionals in carpentry, hvac, electrical, plumbing, roofing, foundation repair. We are fully bonded and insured for homeowner protection. We also provide home inspections for real estate transaction. We specialize in Bathroom - Kitchen remodeling, ro...Read more about Sherlock Home Remodeling Agency, Inc.
    Complete residential remodeling with trade professionals in carpentry, hvac, electrical, plumbing, roofing, foundation repair. We are fully bonded and insured for homeowner protection. We also provide home inspections for real estate transaction. We specialize in Bathroom - Kitchen remodeling, ro...Read more about Sherlock Home Remodeling Agency, Inc.
    Porch Pro Headshot Cardinal Service and Installation
    HVAC Contractors
    Serves O'Fallon, Missouri
    An HVAC company with over 25 years of experience! We provide exceptional service day or night for all of your emergency needs! And in addition we do installation and repair of food and appliance equipment! Servicing Warren, St. Charles, Lincoln and St. Louis counties!
    An HVAC company with over 25 years of experience! We provide exceptional service day or night for all of your emergency needs! And in addition we do installation and repair of food and appliance equipment! Servicing Warren, St. Charles, Lincoln and St. Louis counties!
    Porch Pro Headshot Witt Heating Air Conditioning and Plumbing
    HVAC Contractors
    Serves O'Fallon, Missouri
    Get in touch with Witt Heating Air Conditioning and Plumbing if you are searching for an HVAC contractor. They provide first-rate air conditioning maintenance, vent duct cleaning, and furnace maintenance for Saint Charles.
    Get in touch with Witt Heating Air Conditioning and Plumbing if you are searching for an HVAC contractor. They provide first-rate air conditioning maintenance, vent duct cleaning, and furnace maintenance for Saint Charles.
    Porch Pro Headshot Astro Heating & Cooling
    HVAC Contractors
    Serves O'Fallon, Missouri
    (32)
    Porch Pro Headshot Roofnation LLC
    HVAC Contractors
    Serves O'Fallon, Missouri
    Porch Pro Headshot Grand Oaks Heating & Cooling Inc
    HVAC Contractors
    Serves O'Fallon, Missouri
    Porch Pro Headshot Ace Heating & Cooling
    HVAC Contractors
    Serves O'Fallon, Missouri
    Porch Pro Headshot EMS Hvac
    HVAC Contractors
    Serves O'Fallon, Missouri

    Latest projects near O'Fallon

    Recent projects booked on Porch
    Wentzville 63385
    Thermostat Replacement and Repair
    Comments from Customer
    Upgrading to a smart thermostat
    Wentzville 63385
    Thermostat Replacement and Repair
    Lake Saint Louis 63367
    HVAC Inspection
    Start Date
    Within 48 hours
    Purpose
    just a check up on heating an air condition
    Inspection type
    Heating and cooling
    Property type
    Single family residence
    Property size
    1,501-2,000 sq ft
    Property age
    11-20 years
    Foundation type
    Slab on ground
    Relationship to property
    Owner
    Occupied
    Yes
    Utilities turned on
    Yes
    Specific services
    None of the above
    O Fallon 63368
    Thermostat Replacement and Repair
    Comments from Customer
    I would like to get an estimate for an ecobee thermostat install