10 Best HVAC Companies in Lemay, MO

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Last Updated: February 25, 2025

On average, 55% of energy use in American homes goes toward heating and cooling, according to the U.S. Department of Energy. With so much money spent on cooling and heating your Lemay home, you want to know that you're getting the best return on your investment.

We've assembled this guide to Lemay's top HVAC companies to help you choose the right person for your job and get your system into its best shape ever.

Top 10 Best HVAC Companies in Lemay

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SmartHouse Heating and Cooling

SmartHouse Heating and Cooling Logo

Our Rating

User Rating

6921 Olive Blvd, St. Louis, MO 63130 (314) 451-5391 callsmarthouse.com

Prompt service delivery

Informative resources

Free quotes

Clear pricing policy

Reliable customer support

Services Offered

Ductless
Furnace installation
Inspection
Furnace repair
Ac installation
Ac repair
Boiler installation
Smart home integration
Filtration
Radiant heating
Indoor air quality
Maintenance
Emergency services

B & W Heating & Cooling

B & W Heating & Cooling Logo

Our Rating

User Rating

398 E Edwardsville Rd, Wood River, IL 62095 (618) 936-0361 bwheatcool.com

Informative resources

Reliable customer support

Prompt service delivery

Clear pricing policy

Free quotes

Services Offered

Duct cleaning
Ductless
Ac repair
Emergency services
Maintenance
Ventilation
Filtration
Zoning systems
Boiler installation
Furnace installation
Boiler repair
Ac installation
Indoor air quality

Academy Air Heating, Cooling, Plumbing and Electric

Academy Air Heating, Cooling, Plumbing and Electric Logo

Our Rating

User Rating

924 Jeffco Executive Dr, Imperial, MO 63052 (314) 370-6074 academyair.com

Informative resources

Reliable customer support

Services Offered

Ductless
Indoor air quality
Boiler repair
Maintenance
Ac installation
Furnace installation
Furnace repair
Emergency services
Duct cleaning
Boiler installation
Ac repair
Filtration

Vitt Heating & Cooling

Vitt Heating & Cooling Logo

Our Rating

User Rating

4719 Morgan Ford Rd, St. Louis, MO 63116 (314) 347-3389 vittheating.com

Prompt service delivery

Informative resources

Free quotes

Services Offered

Duct cleaning
Ac installation
Indoor air quality
Inspection
Boiler repair
Ductless
Furnace repair
Filtration
Maintenance
Furnace installation
Ac repair
Boiler installation

Polar Aire Plumbing, Heating & Air Conditioning

Polar Aire Plumbing, Heating & Air Conditioning Logo

Our Rating

User Rating

2227 Vandalia St, Collinsville, IL 62234 (618) 772-7007 callpolaraire.com

Reliable customer support

Free quotes

Clear pricing policy

Prompt service delivery

Informative resources

Services Offered

Ac repair
Emergency services
Indoor air quality
Boiler installation
Boiler repair
Maintenance
Inspection
Ductless
Ac installation
Furnace repair
Furnace installation

All Air Systems Heating & Cooling

All Air Systems Heating & Cooling Logo

Our Rating

User Rating

111 Prospect Ave # 103, Kirkwood, MO 63122 (314) 966-5600 callallair.com

Clear pricing policy

Informative resources

Free quotes

Reliable customer support

Services Offered

Inspection
Ductless
Boiler installation
Indoor air quality
Emergency services
Ac repair
Ac installation
Maintenance
Furnace installation
Boiler repair
Furnace repair

Vogel Heating & Cooling

Vogel Heating & Cooling Logo

Our Rating

User Rating

1642 Manufacturers Dr, Fenton, MO 63026 (314) 408-6068 vogelheating.com

Informative resources

Free quotes

Reliable customer support

Services Offered

Furnace installation
Filtration
Zoning systems
Ductless
Indoor air quality
Ac repair
Maintenance
Boiler repair
Boiler installation
Duct cleaning
Ac installation
Furnace repair
Emergency services

Averill Heating & Air Conditioning

Averill Heating & Air Conditioning Logo

Our Rating

User Rating

10645 Liberty Ave, St. Louis, MO 63132 (314) 427-3825 averillheatcool.com

Free quotes

Informative resources

Clear pricing policy

Reliable customer support

Services Offered

Emergency services
Maintenance
Ac repair
Furnace installation
Boiler installation
Ac installation
Ductless
Indoor air quality
Boiler repair
Furnace repair
Inspection

B & B Heating & Cooling

B & B Heating & Cooling Logo

Our Rating

User Rating

1955 Washington St, Florissant, MO 63033 (314) 838-9800 bbheatingcooling.com

Informative resources

Reliable customer support

Clear pricing policy

Services Offered

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

Pioneer Mechanical, LLC.

Pioneer Mechanical, LLC. Logo

Our Rating

User Rating

2 E Main St Suite 200, Festus, MO 63028 (636) 500-0989 pioneer-mechanical.com

Services Offered

Emergency services
Boiler installation
Furnace installation
Maintenance
Ac repair
Ventilation
Indoor air quality
Ac installation
Furnace repair
Filtration
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

An HVAC system that's broken or outdated likely needs professional attention for maintenance or replacement. Watch for these signals that your system needs service:

  • Refrigerant leaks
  • Uneven heating/cooling or poor air circulation
  • Cracking, corrosion, or rust
  • Temperature control issues or thermostat malfunctions
  • Frequent breakdowns and need for repairs
  • Higher than normal energy bills
  • Odd noises when turning on
  • An HVAC system that's over 15 years old

If you notice any of the above, it's wise to have a local HVAC technician inspect your system. They can pinpoint problems and determine whether repair or full HVAC replacement is needed.

Cost of HVAC Installation and Maintenance in Lemay

What you pay for HVAC installation or maintenance depends on your system type. Common HVAC unit styles include the following:

  • Split or mini-split: If your home's ductwork can't accommodate a central HVAC system, you probably have a split or mini-split system. Split systems have interior units in each room to control temperature; these indoor units all connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system functions much like a standard split system, but is able to utilize either electricity or gas as energy sources.
  • Heat pump: Heat pumps work by circulating warm and cool air between your home and the outdoors. These systems don't produce heat or air conditioning themselves, and are more suited to more moderate climates.
  • Packaged heating and air: Packaged HVAC systems are a smart choice for smaller homes. They have a single cooling and heating unit, typically in a basement or attic. This unit is often space-saving, cost-effective, and easy to maintain.

HVAC maintenance costs vary depending on what services are needed. HVAC systems are complicated and might require different kinds of maintenance. Fees for common services are as follows:

HVAC Unit TypeCost
Split$1,973-$5,030
Hybrid Split$3,998-$7,366
Heat Pump$3,096-$31,544
Packaged Heating and Air$259-$432

Ways to Save Money on HVAC Costs

Repairing or replacing your HVAC system when needed is crucial, but can be expensive. Fortunately, there are actions you can take to reduce gradual wear and tear on your system.

  • Monitor for potential problems. Keeping an eye out for problems, for instance by consistently checking your thermostat and energy bills, lets you resolve them before they get out of hand.
  • Keep your system clean. Keeping your grills, condenser fan blades, indoor evaporator coil, and ductwork clean helps your HVAC system function effectively and lowers the risk of mold. The National Air Duct Cleaners Association recommends cleaning your home's HVAC when you notice things starting to get dirty.
  • Change filters regularly. Switching out or cleaning your air filters every 1–3 months helps air flow efficiently through your HVAC system. You should also try to prevent dirt and debris from building up around the external parts of your system.
  • Change the position of your blinds seasonally. Opening your blinds in winter allows passive solar heat into your house. Closing your blinds in summer blocks some heat from getting indoors. Both of these measures help lower the work required from your house's HVAC system.
ServiceCost
Filter Replacement$65-$173
Condensor Cleaning$1,295-$3,886
Thermostat Repair$86-$216
Ductwork Cleaning$414-$1,036

How To Choose a Local HVAC Company

Knowing the indicators of a reliable HVAC company is key for a smooth repair or installation. Picking an established business with certified technicians gives you assurance your HVAC system will deliver consistent coolig and heating year-round.

Compare Multiple Bids

Contact at least three HVAC companies for quotes. Explain the issues and have specialists visit to inspect your system if possible. Compare the contractors' explanations, solutions, estimated costs, warranties, and timeframes. Avoid providers that pressure you or demand payment upfront.

Check Credentials

It's important to choose an HVAC company that employs technicians with the appropriate qualifications and expertise. In all states, HVAC contractors have federal requirements from the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, a contractor must pass an exam (the type of exam depends on what 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.

The state of Missouri doesn't have state-level HVAC contractor licensing requirements; however, most municipalities have local requirements. Make sure that you 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 look at reviews and complaints on sites like the Better Business Bureau (BBB), Yelp, and Google Reviews. Choose a company with glowing reviews and reports of fantastic customer experiences.

Understand Work Details

Always make sure you know the details of your project. For HVAC repairs, your provider should specify which parts need replacement and why. Confirm that your technician will clean and test the system after repairs are done to verify that it’s working properly. When replacing your HVAC, have the provider describe the new estimated installation time, energy efficiency, brand, features, and model. Before signing a contract, ask how your provider plans to accurately size the unit for your home and how much it will cost.

Compare Warranties

Good HVAC companies offer warranties on service and installations. The more complete the coverage, the better. Review warranty details between providers and pick the one that offers the most comprehensive protection for the fairest price.

Get Quote in Writing

Always get estimates for HVAC service in writing before committing to a provider. A detailed quote should cover both materials and labor. Make sure you understand all terms before signing a contract.

Frequently Asked Questions About HVAC in Lemay, MO

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

The best times to have an HVAC inspection are during the spring and fall. Technicians are generally less busy during these times, which makes it easier to get an appointment. This also helps get your system ready for the summer and winter, the times of the year when it sees the most use.

You can save energy throughout the year by making it easier for your HVAC system to maintain your home's temperature. During all seasons, keep your thermostat as close to the outside temperature as possible, and try to adjust it only a few degrees at a time. You could also consider installing a smart thermostat.

For a 2,000-square-foot home, you should look for around 2.5 to 5 tons of air conditioning capacity. If your home is larger than 1,000 square feet, central air will be more effective than window units for cooling.

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

Your HVAC company may provide financing options via a third-party lender, or you might be able to obtain your own loan. It's a good idea to discuss payment options with a financial advisor and your HVAC company to make sure that you find the best option for you.

There are a number of ways you can make your HVAC system more energy-efficient:

  • Keep your air ducts clean and clean or change your air filters regularly.
  • Have regular inspections to take care of problems as they come up.
  • Make sure your doors and windows are well-sealed and keep your attic well-ventilated.
  • Install a smart thermostat. If you don't want to or can't buy one, try keeping the temperature indoors as close to the outside temperature as you can.
  • When you need to replace part of your HVAC system, see if there are Energy Star-certified or similar environmentally friendly options.

Other Lemay, MO Home Services

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