10 Best HVAC Companies in Mundelein, IL

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Last Updated: February 25, 2025

If you're like the average American, more than half of your energy bill (55%, per the Department of Energy) goes toward heating and cooling. Since heating and cooling represent such a significant chunk of your utility bills, you'll want to make sure the HVAC system in your Mundelein home is functioning optimally.

Our list of Mundelein's top HVAC companies can help you get your system into top shape, allowing you to save money while staying comfortable.

Top 10 Best HVAC Companies in Mundelein

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AA Service Co Heating, Cooling & Plumbing

AA Service Co Heating, Cooling & Plumbing Logo

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346 Huehl Rd, Northbrook, IL 60062 (847) 579-9963 aaserviceco.com

Free quotes

Informative resources

Reliable customer support

Clear pricing policy

Prompt service delivery

Services Offered

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

JNL Climate Control, Inc.

JNL Climate Control, Inc. Logo

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215 Prairie Lake Rd, East Dundee, IL 60118 (847) 358-2251 jnlclimatecontrol.com

Free quotes

Clear pricing policy

Prompt service delivery

Informative resources

Reliable customer support

Services Offered

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

Libertyville Unique Indoor Comfort - Now AA Service Co

Libertyville Unique Indoor Comfort - Now AA Service Co Logo

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User Rating

624 Second St, Libertyville, IL 60048 (847) 362-1910 aaserviceco.com

Informative resources

Reliable customer support

Clear pricing policy

Free quotes

Services Offered

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

Rosenthal Heating & Air Conditioning

Rosenthal Heating & Air Conditioning Logo

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User Rating

1000 Lotus Dr Unit 8, Silver Lake, WI 53170 (262) 534-7330 4rosenthal.com

Prompt service delivery

Informative resources

Clear pricing policy

Reliable customer support

Free quotes

Services Offered

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

Precision Today Plumbing Heating Cooling Electrical (Miller's Area Heating)

Precision Today Plumbing Heating Cooling Electrical (Miller's Area Heating) Logo

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User Rating

112 Center St, Grayslake, IL 60030 (847) 752-4746 precisiontoday.com

Free quotes

Reliable customer support

Prompt service delivery

Clear pricing policy

Informative resources

Services Offered

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

Air Kings Heating And Cooling

Air Kings Heating And Cooling Logo

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User Rating

18880 Oak Ave, Mundelein, IL 60060 (847) 621-2263 callairkings.com

Clear pricing policy

Free quotes

Informative resources

Reliable customer support

Prompt service delivery

Services Offered

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

Effective Air, Inc.

Effective Air, Inc. Logo

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User Rating

2033 Johns Ct, Glenview, IL 60025 (847) 729-1820 effectiveair.com

Clear pricing policy

Free quotes

Reliable customer support

Informative resources

Services Offered

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

Air Blue Heating and Cooling

Air Blue Heating and Cooling Logo

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User Rating

1154 N Main St Unit D, Algonquin, IL 60102 (847) 250-1703 airblueinc.com

Informative resources

Free quotes

Reliable customer support

Clear pricing policy

Prompt service delivery

Services Offered

Emergency services
Maintenance
Boiler installation
Duct cleaning
Indoor air quality
Ventilation
Furnace installation
Ac repair
Smart home integration
Ductless
Ac installation

Lake County Mechanical, Inc

Lake County Mechanical, Inc Logo

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User Rating

328 North Ave, Antioch, IL 60002 (847) 989-4649 lakecountymechanical.com

Clear pricing policy

Reliable customer support

Services Offered

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

Midwest Comfort Heating & Cooling LLC

Midwest Comfort Heating & Cooling LLC Logo

Our Rating

User Rating

1022 W Devon Ave, Elk Grove Village, IL 60007 (847) 338-2777 midwestcomfort.net

Free quotes

Informative resources

Clear pricing policy

Reliable customer support

Services Offered

Indoor air quality
Boiler repair
Furnace repair
Ductless
Filtration
Zoning systems
Ac installation
Boiler installation
Ac repair
Furnace installation
Ventilation
Emergency services
Maintenance
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 malfunctioning or outdated likely needs professional attention for repairs or replacement. Watch for these signals that your system needs service:

  • Strange noises when the system turns on
  • Thermostat malfunctions or temperature control issues
  • Unusually high energy bills
  • Refrigerant leaks
  • Frequent breakdowns and need for repairs
  • Corrosion, rust, or cracking
  • Uneven heating/cooling or poor air circulation
  • An HVAC system that's over 15 years old

If you're experiencing any of these HVAC issues, you should have a technician inspect your system. A local professional can diagnose problems and determine whether fixing or replacing your HVAC unit is the correct solution.

Cost of HVAC Installation and Maintenance in Mundelein

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

  • Split or mini-split: If your home lacks the right ductwork for central heating or air, you likely have a split HVAC system. Split or mini-split systems consist of interior units that control the temperature in individual rooms. These interior units are all connected to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system works almost the same as a standard split system. It has the benefit of being able to utilize either gas or electricity for power.
  • Heat pump: Heat pumps exchange hot and cold air between your home and the outside. These systems don't produce their own heat or AC, so they work better in milder climates.
  • Packaged heating and air: Packaged HVAC systems are a practical choice for smaller homes. These systems have a single combined AC and heating, typically located in an attic or basement. They're compact, energy-efficient, and easy to maintain.

HVAC maintenance costs differ depending on what services are needed. HVAC systems are complex and may require different kinds of maintenance. Prices 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

HVAC system repairs and replacements are important, but can be pricey. Fortunately, homeowners can take steps to reduce wear and tear on their HVAC and lower future maintenance needs.

  • Monitor for potential problems. Monitoring your system for issues — for example, by checking your thermostat and energy bills routinely — helps you catch issues before they get too expensive.
  • Keep your system clean. Regularly cleaning condenser fan blades, indoor evaporator coil, ductwork, and grills helps your HVAC system run efficiently and lowers your risk of mold. The National Air Duct Cleaners Association recommends cleaning your heating and cooling system when it starts to look dirty.
  • Change the position of your blinds seasonally. Leaving your blinds open during the winter helps warm your home with passive solar heating. Closing the blinds in warmer seasons helps prevent the heat from getting inside. Doing both helps minimize the demand on your HVAC system.
  • Change filters regularly. Air flows through your HVAC system most effectively when you change out or clean the filters every 30–90 days. Also try not to let debris pile up on the external sections of your HVAC.
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 what makes a trustworthy HVAC company is vital for a successful installation or repair. An experienced, credentialed HVAC contractor gives you confidence your system can provide consistent heating and air conditioning year-round.

Compare Multiple Bids

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

Check Credentials

When selecting an HVAC company, choose one with technicians that have the appropriate training, licenses, and experience. In all states, HVAC contractors must obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is mandatory for all contractors who "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." Contractors must pass an exam (the type of exam depends on the type of equipment they intend to work with) to be certified by the EPA. All other licensing requirements are handled on a state-by-state basis.

The state of Illinois doesn't have state-level licensing requirements for contractors. However, there may be local regulations, so make sure to check with your municipal government to confirm that your contractor meets all the requirements. You can also verify an Illinois business license on the Secretary of State's website. You should also look at reviews and complaints on sites like the Better Business Bureau (BBB), Yelp, and Google Reviews. Pick a company with glowing reviews and testimonials about fantastic customer experiences.

Understand Work Details

Always make sure you know the details of any 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 completed to verify that it’s working properly. When replacing your HVAC, ask the contractor to describe the new model, features, energy efficiency, brand, and estimated installation time. Before work starts, ask how your provider plans to accurately size the unit for your home and how much it will cost.

Compare Warranties

A trustworthy HVAC company will back its repair services and installations with a warranty. The longer and more comprehensive the warranty coverage, the better. Carefully compare the fine print between contractors and choose the provider that offers the greatest protection at a reasonable price.

Get Quote in Writing

Always get HVAC bids in writing before work begins. A thorough quote will cover costs for both materials and labor. Confirm that you agree to all terms before signing the contract.

Frequently Asked Questions About HVAC in Mundelein, IL

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

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

You can save energy throughout the year by reducing the amount of power your HVAC system uses to maintain your home's temperature. Always keep your thermostat as close to the outside temperature as possible, and avoid making drastic changes — adjust it only a few degrees at a time. You could also consider 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 vary depending on factors like the size of your house, how easily accessible different parts of the system are, and whether your technician finds any problems.

For a 2,000-square-foot home, you need around 2.5 to 5 tons of air conditioning capacity. If your home is larger than 1,000 square feet, central air will generally 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).

There are several ways you can make your HVAC system more energy-efficient:

  • Make sure your air ducts remain clean, and clean or change your air filters regularly.
  • Schedule regular inspections to take care of issues as they arise.
  • Keep your attic well-ventilated and make sure all doors and windows are well-sealed.
  • Install a smart thermostat. If you don't want to or can't buy one, try to keep the temperature indoors as close to the outside temperature as is comfortable.
  • When replacing part of your HVAC system, see if there are Energy Star-certified or other environmentally friendly options.

Other Mundelein, IL Home Services

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