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10 Best HVAC Companies in Wentzville, MO

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Written By Bradford Cuthrell

Last Updated February 2024

If you're like most Americans, over half of your energy bill (55%, according to the U.S. Department of Energy) goes toward heating and cooling your home. Since such a significant portion of your utility bill goes toward cooling and heating, you'll want to make sure the HVAC system in your Wentzville home is functioning optimally.

A top HVAC contractor can get your system into its best shape ever, saving you money while keeping your home comfortable. That's why we've put together this guide to the best HVAC companies in Wentzville.

Top 10 Best HVAC Companies in Wentzville

Stay Cool Climate Control

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407 Sonderen St, O'Fallon, MO 63366 (636) 747-1762 staycool-hvac.com

Prompt service delivery

Informative resources

Reliable customer support

Clear pricing policy

Free quote

Services Offered

Ductless
Ac installation
Filtration
Zoning systems
Furnace installation
Filters
Ac repair
Indoor air quality
Maintenance
Inspection
Furnace repair
Emergency services

Hoff Heating & AC

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1520 Kemmar Ct, O'Fallon, MO 63366 (636) 388-4141 hoffheating.com

Reliable customer support

Clear pricing policy

Informative resources

Services Offered

Furnace repair
Furnace installation
Ac installation
Ventilation
Filtration
Geothermal heating
Ac repair
Maintenance
Ductless
Indoor air quality

AAA Heating & Cooling

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407 E Pearce Blvd Ste A, Wentzville, MO 63385 (636) 278-9616 aaastl.com

Clear pricing policy

Free quote

Reliable customer support

Prompt service delivery

Informative resources

Services Offered

Indoor air quality
Furnace repair
Furnace installation
Ac installation
Ductless
Ac repair
Maintenance

Swiss Air Heating & Cooling, LLC

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406 E Wabash St, O'Fallon, MO 63366 (636) 978-7800 swissairstl.com

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Free quote

Reliable customer support

Clear pricing policy

Services Offered

Ac repair
Ventilation
Ductless
Inspection
Emergency services
Maintenance
Filtration
Indoor air quality
Ac installation

Apollo Heating & Cooling

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120 State Hwy A #3, Wentzville, MO 63385 (636) 639-9818 apolloheatandcool.com

Prompt service delivery

Reliable customer support

Free quote

Clear pricing policy

Informative resources

Services Offered

Maintenance
Furnace repair
Ductless
Emergency services
Ac installation
Indoor air quality
Ventilation

Faszold Heating and Cooling

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1613 E Terra Ln, O'Fallon, MO 63366 (636) 735-7842 faszold.com

Free quote

Clear pricing policy

Reliable customer support

Informative resources

Services Offered

Maintenance
Inspection
Filtration
Indoor air quality
Ventilation
Ac repair
Furnace installation
Ductless

Survant Heating & Air Conditioning

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123 W 1st St N, Wright City, MO 63390 (636) 745-7353 survanthvac.com

Clear pricing policy

Prompt service delivery

Informative resources

Free quote

Reliable customer support

Services Offered

Emergency services
Ventilation
Furnace repair
Indoor air quality
Maintenance
Ductless
Ac installation

Brown's Heating & Cooling

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2788 Hwy Y, O'Fallon, MO 63366 (636) 272-2041 brownheatingandair.com

Free quote

Clear pricing policy

Reliable customer support

Prompt service delivery

Informative resources

Services Offered

Emergency services
Furnace repair
Ac installation
Ventilation
Ductless
Indoor air quality
Maintenance

Hoock's Heating & Cooling

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2242 Prairie, Wentzville, MO 63385 (636) 266-2187 hoocks.com

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Prompt service delivery

Free quote

Reliable customer support

Clear pricing policy

Services Offered

Maintenance
Ac repair
Furnace repair
Indoor air quality
Ductless
Emergency services

Elite Mechanical LLC

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108 Hamilton Industrial Ct, Wentzville, MO 63385 (636) 887-0971 elitecomfortexperts.com

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Clear pricing policy

Prompt service delivery

Free quote

Reliable customer support

Services Offered

Ac repair
Ac installation
Maintenance
Indoor air quality
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on hvac companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

Signs You May Need HVAC Repair or Replacement

If your home's HVAC system is malfunctioning or nearing the end of its lifespan, you might need an HVAC contractor for maintenance or replacement. Watch for these common indicators that your system needs expert attention:

  • Strange noises when turning on
  • Refrigerant leaks
  • Cracking, rust, or corrosion
  • Poor air circulation or uneven heating/cooling
  • Unusually high energy bills
  • Frequent breakdowns and need for repairs
  • Thermostat malfunctions or temperature control issues
  • An HVAC system that's over 15 years old

If you're experiencing any of these HVAC issues, we recommend having a technician inspect your system. A local professional can diagnose problems and determine whether repairing or getting a new HVAC unit is the correct solution.

Cost of HVAC Installation and Maintenance in Wentzville

Your HVAC installation or maintenance cost fluctuates depending on the type of unit. Common HVAC unit varieties include the following:

  • Split or mini-split: If your home doesn’t have the ductwork for central air or heating, you likely have a split or mini-split system instead. Split HVAC systems have indoor units in each room to manage temperature. These connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system works almost the same as a standard split system. It has the advantage of being able to utilize either electricity or gas for power.
  • Heat pump: Heat pumps work by transferring warm and cool air between your home and the outdoors. These systems don't produce heat or air conditioning themselves, and are better for more moderate climates.
  • Packaged heating and air: Packaged HVAC systems work well in smaller homes. They consist of a single combined air conditioner and heating unit, commonly located in an attic or basement. This unit is typically compact, cost-effective, and easy to maintain.

The price of HVAC maintenance also varies depending on what kind of work being done. HVAC systems are complicated and can require different kinds of maintenance. The cost of some common repairs is as follows:

HVAC Unit Type Cost
Split $1,860-$4,743
Hybrid Split $3,770-$6,945
Heat Pump $2,919-$29,743
Packaged Heating and Air $244-$407

Ways to Save Money on HVAC Costs

It’s important to complete repairs or full-system HVAC replacements as needed, though they can be expensive. The good news is that homeowners have ways to minimize progressive deterioration and reduce the frequency of breakdowns.

  • Change filters regularly. Changing or cleaning your air filters every 1–3 months helps air flow smoothly through your HVAC system. We also recommend regularly clearing dirt and debris away from the external parts of your system.
  • Change the position of your blinds seasonally. Closing your blinds in the summer blocks some passive solar heat from getting indoors. Opening the blinds in the winter allows this same heat to help warm your home. Both of these measures help lower the work required from your home’s HVAC system.
  • Keep your system clean. Cleaning your condenser fan blades, indoor evaporator coil, ductwork, and grills regularly helps your HVAC system work efficiently and reduces the risk of mold growth. The National Air Duct Cleaners Association recommends cleaning your HVAC system once it begins to look dirty.
  • Monitor for potential problems. Monitor your system for issues, for example by routinely checking your thermostat and energy bills. This enables you to address problems before they get too expensive.

Service Cost
Filter Replacement $61-$163
Condensor Cleaning $1,221-$3,664
Thermostat Repair $81-$204
Ductwork Cleaning $391-$977

How To Choose a Local HVAC Company

Knowing the indicators of a good HVAC company is important. A properly licensed contractor with the right experience will give you confidence that they can fix your system, providing you with effective air conditioning and heating for your home.

Compare Multiple Bids

Request estimates from three or more HVAC companies. Describe your issues and ask if technicians can inspect your system in person. Compare each company's diagnoses, recommended solutions, estimated cost, timeline, and warranties. Avoid companies that pressure you or demand payment before work.

Check Credentials

It's important to choose an HVAC company that employs technicians with the proper qualifications and expertise. HVAC contractors in all states have federal requirements set by the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, contractors must pass an exam (the type of exam depends on the kind of equipment they intend to work with). Section 608 certification is required for all technicians who "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." All other licensing requirements are handled at the state level.

There are no state-level licensing requirements for HVAC technicians in Missouri; however, most municipalities have local requirements. It's important to check with your local government to understand requirements for licenses like HVAC Contractor or HVAC Journeyman Contractor. You can also confirm that a company holds a valid business license. You should also check reviews and complaints on sites like Google Reviews, Yelp, and the Better Business Bureau (BBB). Choose a company with glowing reviews and testimonials about good customer experiences.

Understand Work Details

Always make sure you know what a company’s process is like. When getting HVAC repairs, ask your provider to specify which parts need replacement and why. Confirm that your technician will clean and test the system at the end of the job to guarantee proper operation. When replacing your HVAC, have the contractor explain the new model, features, brand, estimated installation time, and energy efficiency. Before signing a contract, make sure you understand how your provider will determine the right system size for your home and what the price will be.

Compare Warranties

Trustworthy HVAC companies provide warranties for their services. Broader coverage is better, so make sure to compare warranties between providers. Choose the one that provides the most comprehensive coverage at a fair cost.

Get Quote in Writing

Always get HVAC quotes in writing before work begins. A thorough quote will cover costs for both materials and labor. Make sure that you understand all terms before signing the contract.

Frequently Asked Questions About HVAC in Wentzville, MO

Generally, you should have your HVAC system inspected twice a year. After that inspection, your HVAC technician will tell you what, if any, services are needed. You should also have your system inspected and serviced if you start to notice any issues, such as unusual smells, strange noises, or leaks. If your home has ductwork, it should be serviced every few years.

The best times of the year to have an HVAC inspection are during the spring and fall. Technicians are often less busy during these times, making it easier to get an appointment. This also ensures that your system is ready for the summer and winter, which is when it normally gets the most use.

You can save energy throughout the year by reducing the amount of work it takes for your HVAC system to maintain your home's temperature. Always keep your thermostat as close to the outside temperature as possible, and try to adjust it only a few degrees at once. You could also consider installing a smart thermostat.

Generally, HVAC installation or replacement takes one to three days for the entire system. Installing or replacing a furnace or air conditioning unit may take anywhere from a few hours up to two days. The exact amount of time will depend on things like the size of your house, how easily accessible different sections are, and whether your technician runs into any problems.

For a 2,000-square-foot home, you need around 2.5 to 5 tons of air conditioning capacity. For a house over 1,000 square feet, central air is likely to be more effective for cooling than window units.

For a 2,000-square-foot home, you'll also look for a furnace that is between 50,000 and 80,000 BTUs (British thermal units).

Typically, HVAC financing is provided by a third-party lender. If your HVAC company doesn't offer these options, you could consider taking out your own loan. Be sure to speak with a financial advisor and your HVAC company to find out what options are available and appropriate for your situation.

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