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10 Best HVAC Companies in Fremont, IL

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Written By Bradford Cuthrell

Last Updated April 2024

On average, American homeowners devote 55% of their home energy usage to heating and cooling, according to the U.S. Department of Energy. Since such a significant portion of your utility bill goes toward heating and cooling, you'll want to ensure that the HVAC system in your Fremont home is functioning properly.

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

Top 10 Best HVAC Companies in Fremont

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

Reliable customer support

Informative resources

Clear pricing policy

Free quote

Services Offered

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

Informative resources

Free quote

Prompt service delivery

Reliable customer support

Clear pricing policy

Services Offered

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

Aaron & Trecker

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232 Telser Rd, Lake Zurich, IL 60047 (847) 851-4862 aaronandtrecker.com

Informative resources

Reliable customer support

Free quote

Clear pricing policy

Services Offered

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

GSHA Services, LTD

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

Prompt service delivery

Informative resources

Reliable customer support

Free quote

Clear pricing policy

Services Offered

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

Blue Star Heating and Cooling

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

Informative resources

Clear pricing policy

Reliable customer support

Free quote

Services Offered

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

North Shore Heating & Cooling

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1047 E High St, Mundelein, IL 60060 (847) 729-1040 northshoreheatingandcooling.com

Free quote

Prompt service delivery

Informative resources

Clear pricing policy

Reliable customer support

Services Offered

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

Air Kings Heating And Cooling

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

Prompt service delivery

Reliable customer support

Free quote

Services Offered

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

Thornton Heating Service, Inc.

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

Clear pricing policy

Informative resources

Reliable customer support

Services Offered

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

All Temp Heating & Air Conditioning, Inc.

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124 E Liberty St, Wauconda, IL 60084 (847) 526-9082 alltemp.net

Informative resources

Free quote

Prompt service delivery

Reliable customer support

Clear pricing policy

Services Offered

Ductless
Furnace repair
Maintenance
Ac repair
Furnace installation
Emergency services
Ac installation
Boiler installation
Ventilation

Martin Enterprises Heating & Air Conditioning

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56 E Main St, Lake Zurich, IL 60047 (847) 719-8442 martinenterprisesheatingandac.com

Free quote

Reliable customer support

Prompt service delivery

Clear pricing policy

Informative resources

Services Offered

Ac repair
Emergency services
Inspection
Indoor air quality
Furnace installation
Maintenance
Ac installation
Ductless
Boiler installation
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 HVAC system is broken or getting near the end of its lifespan, it likely needs repairs or replacement from an HVAC company. Watch for these signs your system needs service:

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

Arrange an inspection if you notice any of these problems. A local technician can inspect your system, detect problems, and determine whether you need repairs or a new HVAC unit.

Cost of HVAC Installation and Maintenance in Fremont

HVAC installation or maintenance costs vary depending on your system. Common HVAC unit varieties include the following:

  • Split or mini-split: Homes without ductwork for central air often have split or mini-split HVAC systems. These systems consist of internal units in each room to control temperature. These indoor units connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system functions very similarly to a standard split system. It has the advantage of having the capability to use either gas or electricity for power.
  • Heat pump: Heat pumps work by circulating hot and cold 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 are a great choice for smaller homes. They have a single cooling and heating unit, typically in an attic or basement. This unit is often compact, energy-efficient, and easy to maintain.

The amount you spend on HVAC maintenance also varies depending on the kind of work being done. HVAC systems are complicated and may require different kinds of maintenance. The prices of some common jobs 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. Thankfully, there are actions you can take to reduce gradual wear and tear on your system.

  • Monitor for potential problems. Keeping a close eye on the efficiency of your HVAC system — for instance by checking your thermostat settings and energy bills — helps you identify and fix problems before they get out of hand.
  • Keep your system clean. Regularly cleaning condenser fan blades, indoor evaporator coil, grills, and ductwork helps keep your HVAC system running efficiently and reduces your risk of mold. The National Air Duct Cleaners Association recommends cleaning your HVAC system when it starts to look dirty.
  • Change the position of your blinds seasonally. During winter, leaving your blinds open allows your home to benefit from passive solar heating. In the summer, keeping your blinds shut helps to block out heat. Doing both reduces the amount of work your HVAC system is required to do.
  • Change filters regularly. Air flows best through your HVAC system when you replace or clean the filters every 1–3 months. Also avoid letting debris pile up on the outside areas 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 crucial for an easy installation or repair. An experienced, credentialed HVAC contractor gives you confidence your system can provide reliable heating and air conditioning year-round.

Compare Multiple Bids

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

Check Credentials

Look for an HVAC company that employs qualified technicians with the necessary training and licenses. In all states, HVAC contractors must obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is mandatory for any individual who helps "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 what kind of equipment they intend to work with) to be certified by the EPA. All other licensing requirements are handled at the state level.

The state of Illinois doesn't have state-level licensing requirements for contractors. However, there may be local regulations. Be sure to check with your municipal government to confirm that your contractor meets all 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 help your decision. Choose a provider with great reviews and reports of positive customer experiences.

Understand Work Details

Make sure you understand the details of any project before it begins. If HVAC repairs are required, have your provider specify which parts require replacement and why. Confirm that your technician will clean and test the entire system after the repair to verify that everything works. When replacing your HVAC system, ask the installation company to provide details on the new estimated installation time, model, brand, features, and energy efficiency. Before signing a contract, make sure you understand how your provider will properly size the new unit for your home and what the cost will be.

Compare Warranties

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

Get Quote in Writing

Get written quotes before beginning HVAC work. The quote should outline costs for both labor and materials. Read all terms carefully before signing.

Frequently Asked Questions About HVAC in Fremont, IL

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

Generally, it's a good idea to have your HVAC system inspected in the spring and fall, as technicians tend to be less busy at these times. This also helps get your system ready for the summer and winter, when it probably sees the most use.

You can save energy throughout the year by making it easier for your HVAC system to maintain the temperature of your home. 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 might also consider getting a smart thermostat.

Generally, whole-system HVAC installation or replacement takes one to three days. Installing or replacing a furnace or air conditioning unit can take as little as half a day or as much as two days. The exact amount of time will depend on things like the size of your home, how easily accessible different sections are, and whether your technician discovers any problems.

Your HVAC company might offer financing options via a third-party lender, or you might be able to obtain a loan on your own. It's smart 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:

  • Make sure your air ducts remain clean, and clean or change your air filters regularly.
  • Have regular inspections to take care of problems 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 aren't able to purchase one, try to keep your inside temperature as close to the outside temperature as is comfortable.
  • When you need to replace part of your system, see if there are Energy Star-certified or other environmentally friendly options.

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