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10 Best HVAC Companies in Waukegan, IL

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Written By Bradford Cuthrell

Last Updated April 2024

If you're like the typical American homeowner, more than half of your energy bill (55%, according to the Department of Energy) goes toward heating and cooling your home. It's important to make sure the heating and cooling systems in your Waukegan home are working properly, so you can avoid spending more than necessary.

Use our guide to the top HVAC companies in Waukegan to find the right one for you and your home. Our topic contractors can help you reduce your bills while still staying comfortable.

Top 10 Best HVAC Companies in Waukegan

Libertyville Unique Indoor Comfort - Now AA Service Co

Libertyville Unique Indoor Comfort - Now AA Service Co Logo

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

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Reliable customer support

Clear pricing policy

Informative resources

Services Offered

Indoor air quality
Furnace installation
Ac installation
Filtration
Ductless
Furnace repair
Inspection
Maintenance
Boiler installation
Emergency services
Zoning systems
Radiant heating
Ac repair
Boiler 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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112 Center St, Grayslake, IL 60030 (847) 752-4746 precisiontoday.com

Reliable customer support

Clear pricing policy

Prompt service delivery

Free quote

Informative resources

Services Offered

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

GSHA Services, LTD

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11 N Skokie Hwy #111c, Lake Bluff, IL 60044 (224) 507-6107 gshaservices.com

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Free quote

Clear pricing policy

Informative resources

Prompt service delivery

Services Offered

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

Blue Star Heating and Cooling

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1840 Industrial Dr Ste 280, Libertyville, IL 60048 (847) 797-4232 bluestarillinois.com

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Clear pricing policy

Reliable customer support

Free quote

Services Offered

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

Herchenbach Mechanical Inc.

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830 Magnolia Ave, Gurnee, IL 60031 (847) 260-9335 herchenbach.com

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Free quote

Reliable customer support

Prompt service delivery

Clear pricing policy

Services Offered

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

Thornton Heating Service, Inc.

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19083 W Casey Rd, Libertyville, IL 60048 (847) 905-1608 thorntonheating.com

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Informative resources

Clear pricing policy

Services Offered

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

Modern Heating & Plumbing Co.

Modern Heating & Plumbing Co. Logo

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1949 Swanson Ct, Gurnee, IL 60031 (847) 565-1334 modernheatingco.com

Reliable customer support

Informative resources

Clear pricing policy

Prompt service delivery

Services Offered

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

Ireland Heating & Air Conditioning Co.

Ireland Heating & Air Conditioning Co. Logo

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28354 Ballard Dr, Lake Forest, IL 60045 (847) 388-0108 irelandhtg.com

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Free quote

Services Offered

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

Allied Air Conditioning & Heating Corp.

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203 Peterson Rd, Libertyville, IL 60048 (847) 367-8989 alliedairheat.com

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Clear pricing policy

Informative resources

Services Offered

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

Cahill Heating, Cooling, Electric, Plumbing & Sewer

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28983 N Herky Dr, Lake Bluff, IL 60044 (847) 582-0385 cahillheating.com

Reliable customer support

Free quote

Informative resources

Clear pricing policy

Services Offered

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

A malfunctioning or aging HVAC system probably needs attention from a professional who can make fixes or install a new unit. Keep an eye out for these common signs that your HVAC needs service:

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

If you notice any of these HVAC red flags, your system evaluated. A local technician can complete an inspection, diagnose problems, and recommend repairing or replacing your HVAC unit.

Cost of HVAC Installation and Maintenance in Waukegan

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

  • Split or mini-split: If your home doesn't have the right ductwork for central air or heating, you probably have a split HVAC system. Split or mini-split systems consist of interior units that control the temperature in individual rooms, and that are all connected to an outdoor unit.
  • Hybrid split: A hybrid split HVAC unit operates similarly to a regular split system. It gives flexibility by providing the option to use either electricity or gas for energy.
  • Heat pump: Heat pumps move hot and cold air between your home and outside. These systems don't generate their own heat or AC, so they work better in moderate climates.
  • Packaged heating and air: Packaged HVAC systems work best in smaller homes. They consist of a single combined heating and air conditioning unit, typically located in a basement or attic. This unit is typically compact, energy-efficient, and straightforward to maintain.

HVAC maintenance costs differ depending on the particular service needed. HVAC systems are complex and may require different maintenance services. 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

Fixing your HVAC by repairing or replacing parts when needed is crucial, but can be expensive. Luckily, there are steps you can take to minimize wear and tear over time on your system.

  • Change filters regularly. Air flows through your HVAC system most effectively when you replace or clean the filters every 30–90 days. Also try not to let debris pile up on the external sections of your HVAC.
  • Monitor for potential problems. Monitoring your system for issues — for example, by checking your thermostat and energy bills routinely — helps you get ahead of problems before they get too expensive.
  • Change the position of your blinds seasonally. Leaving your blinds open during the winter allows passive solar heating to warm your home. Closing the blinds in warmer seasons helps prevent some heat from getting inside. Doing both helps decrease the demand on your HVAC.
  • Keep your system clean. Cleaning your condenser fan blades, grills, indoor evaporator coil, and ductwork regularly helps keep your HVAC system working efficiently and lowers the risk of mold growth. The National Air Duct Cleaners Association recommends cleaning your HVAC system once it begins to look dirty.
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

It's important to know what makes a good HVAC company. 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

Contact at least three HVAC contractors for quotes. Describe your issues and schedule an in-person inspection if possible. Compare companies' diagnoses, suggested repairs, estimated costs, timeframes, and warranties. Avoid companies that pressure you or demand upfront payment.

Check Credentials

When picking an HVAC provider, choose one with technicians that have the proper training, licenses, and experience. In all states, HVAC contractors need to 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." An individual 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 at the state level.

There are no state-level licensing requirements for contractors in Illinois. However, there may be local regulations, so make sure to check with your municipal government to verify that your contractor meets all of the requirements. You can verify an Illinois business license on the Secretary of State's website. Reviewing feedback on Google Reviews, the Better Business Bureau (BBB), Yelp, and similar sites can aid your decision. Choose a company with great reviews and stories of positive customer experiences.

Understand Work Details

Always make sure you know what a company’s process is like. When HVAC repairs are needed, ask your provider to specify which parts require replacement and why. Confirm that your technician will clean and test the system after finishing the work to guarantee proper operation. When getting a replacement, ask the contractor to explain the new HVAC system model, features, estimated installation time, energy efficiency, and brand. Before signing a contract, you should understand the process your provider will use to properly size the system for your home and the price you'll pay.

Compare Warranties

A trustworthy HVAC company will back its repair services and equipment installations with a warranty. The longer and more comprehensive the coverage terms, the better. Carefully review the fine print for each contractor and choose the company that provides the most protection at a reasonable price.

Get Quote in Writing

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

Frequently Asked Questions About HVAC in Waukegan, IL

You should have your HVAC system inspected about twice yearly. At the time of the inspection, your technician will inform you if any services are needed. You should also have your system inspected if you start noticing issues such as unusual smells, strange noises, or leaks. If your home has ductwork, it should be inspected every few years.

Normally, it's smart to have your HVAC system inspected in the spring and fall, as these times tend to be less busy. This also helps make sure your system is prepared for the summer and winter, when it typically sees the most use.

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

It takes around one to three days to have an HVAC system installed or replaced. If you only need a furnace or a single air conditioning unit, this might take between half a day and two days. This timeline can be influenced by the size of your home, the accessibility of your system, and any issues your technician discovers.

Your HVAC company may have financing options through a third-party lender, or you might choose to obtain a loan on your own. It's a good idea to discuss payment options with your HVAC company and a financial advisor to make sure that you're choosing the best option for you.

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

  • Keep your air ducts clean and change or clean your air filters on a regular basis.
  • Have regular inspections to take care of issues as they come up.
  • 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 keeping the temperature indoors as close to the outside temperature as you can.
  • When replacing part of your system, explore Energy Star-certified or similar environmentally friendly options.

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