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10 Best HVAC Companies in Greenwood, IL

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Written By Bradford Cuthrell

Last Updated February 2024

If you're like the average American, over half of your energy bill (55%, per the U.S. Department of Energy) goes toward heating and cooling your home. It's important that the temperature control systems in your Greenwood home are functioning properly, so you can avoid spending more than you need to.

Our list of the top HVAC companies in Greenwood can help you get your system into top shape, allowing you to keep comfortable while saving money.

Top 10 Best HVAC Companies in Greenwood

Woodstock Heating & Cooling

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333 E Judd St, Woodstock, IL 60098 (815) 338-0282 woodstockheating.com

Reliable customer support

Prompt service delivery

Clear pricing policy

Services Offered

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

McHenry Heating & Air, Inc.

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1903 State Rte 31, McHenry, IL 60050 (815) 444-9900 mchenryheating.com

Reliable customer support

Clear pricing policy

Informative resources

Services Offered

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

Dowe & Wagner, Inc.

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11215 Commercial St, Richmond, IL 60071 (815) 678-3000 doweandwagner.com

Reliable customer support

Clear pricing policy

Services Offered

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

Loud Brothers

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3910 Main St, McHenry, IL 60050 (847) 724-5300 loudbrothers.com

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Free quote

Clear pricing policy

Reliable customer support

Prompt service delivery

Services Offered

Furnace installation
Ac installation
Furnace repair
Ductless
Radiant heating
Inspection
Maintenance
Boiler installation

Goldmore Mechanical LLC

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7619 Howe Rd, Wonder Lake, IL 60097 (815) 790-6135 goldmoremechanical.com

Informative resources

Reliable customer support

Clear pricing policy

Services Offered

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

Combined Services HVAC

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756 Ridgeview Dr, McHenry, IL 60050 (815) 271-5734 combinedserviceshvac.com

Clear pricing policy

Reliable customer support

Services Offered

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

Absolute Comfort

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60 W Terra Cotta Ave, Crystal Lake, IL 60014 (815) 893-9276 absolutelycomfortable.com

Clear pricing policy

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Free quote

Reliable customer support

Services Offered

Ac installation
Indoor air quality
Furnace repair
Duct cleaning
Furnace installation
Ac repair

Harmonic Heating, Air Conditioning & Plumbing, previously Official Heating & Cooling

Harmonic Heating, Air Conditioning & Plumbing, previously Official Heating & Cooling Logo

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5214 S Illinois Rte 31, Crystal Lake, IL 60012 (800) 350-4822 officialhvac.com

Free quote

Informative resources

Clear pricing policy

Services Offered

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

Comfort Air Heating & Cooling Inc

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4006 E Wonder Lake Rd, Wonder Lake, IL 60097 (815) 459-2700 comfortairheating.com

Free quote

Clear pricing policy

Informative resources

Reliable customer support

Services Offered

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

American Comfort Central

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756 Ridgeview Dr Unit 1, McHenry, IL 60050 (855) 848-3638 americancomfortcentral.com

Reliable customer support

Free quote

Services Offered

Maintenance
Ac installation
Emergency services
Furnace installation
Filtration
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 HVAC system is broken or getting near the end of its lifespan, it likely needs servicing or replacement from an HVAC company. Watch for these indicators your system needs service:

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

If you see any of these HVAC issues, have a technician inspect your system. A local professional can detect problems and determine whether repairing or getting a new HVAC unit is the best solution.

Cost of HVAC Installation and Maintenance in Greenwood

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

  • Split or mini-split: Homes without ductwork for central heating and cooling often have split or mini-split HVAC systems. These systems consist of indoor units in each room to regulate temperature, which all connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC unit operates similarly to a regular split system. It provides flexibility by providing the option to use either electricity or gas for energy.
  • Heat pump: Heat pumps transfer warm and cool air between your house and outside. They don't create their own heating and cooling, so they work more effectively in more moderate climates.
  • Packaged heating and air: Packaged HVAC systems are more popular in smaller homes. They consist of a single heating and cooling unit that's typically located in an attic or basement. This unit tends to be compact, efficient, and easy to maintain.

HVAC maintenance costs vary based on the specific services required. HVAC systems can be complex and potentially require several different services. Costs for typical jobs are as follows:

HVAC Unit TypeCost
Split$1,932-$4,924
Hybrid Split$3,914-$7,211
Heat Pump$3,031-$30,881
Packaged Heating and Air$254-$423

Ways to Save Money on HVAC Costs

Essential HVAC maintenance is important, but can be pricey. Luckily, there are steps homeowners can take to reduce wear and tear on their HVAC and lower future maintenance needs.

  • Change the position of your blinds seasonally. Keeping your blinds closed in the summer helps block out passive solar heat. Keeping them open in the winter helps you take advantage of this same heat. Both of these measures help reduce the frequency with which you need to run your HVAC.
  • Change filters regularly. Changing or cleaning your air filters every 1–3 months helps air flow smoothly through your HVAC system. You should also try to prevent dirt and debris from building up around the external parts of your system.
  • Keep your system clean. Keeping your grills, condenser fan blades, indoor evaporator coil, and ductwork clean helps your HVAC system function effectively and lowers your risk of mold. The National Air Duct Cleaners Association recommends cleaning your HVAC when you notice it starting to get dirty.
  • Monitor for potential problems. Keeping an eye out for problems, for instance by routinely checking your thermostat and energy bills, helps you resolve them before they get too expensive.
ServiceCost
Filter Replacement$63-$169
Condensor Cleaning$1,268-$3,804
Thermostat Repair$85-$211
Ductwork Cleaning$406-$1,014

How To Choose a Local HVAC Company

It's important to know what makes a good HVAC company. Working with a contractor that's properly licensed and highly experienced will give you confidence that they can maintain your HVAC system properly, providing you with effective air conditioning and heating for your home.

Compare Multiple Bids

Get quotes from at least three HVAC contractors. Describe your issues and ask if specialists can inspect your system in person. Compare each provider's diagnoses, recommended solutions, estimated cost, warranties, and timelines. Avoid contractors that pressure you or demand payment before work.

Check Credentials

When looking for an HVAC provider, choose one with technicians that have the right training, licenses, and experience. HVAC contractors in all states need to obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is required for any individual who helps "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 by the state.

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 verify that your contractor meets all of the requirements. You can verify an Illinois business license on the Secretary of State's website. Checking reviews on Google Reviews, Yelp, the Better Business Bureau (BBB), and similar sites can aid your decision as well. Choose a provider with stellar reviews and reports of positive customer experiences.

Understand Work Details

Always make sure you know the details of your project. When HVAC repairs are required, your provider should specify which parts need replacement and why. Confirm that your technician will clean and test the full system after repairs are done to ensure that it’s working properly. When replacing your HVAC, ask your installation company to provide details on the new features, brand, estimated installation time, model, 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 provide warranties for their work. Broader coverage is better, so make sure to review warranties between companies. Choose the one that offers the best coverage at a reasonable cost.

Get Quote in Writing

Get written bids before starting HVAC work. The quote should cover costs for both labor and materials. Review all terms carefully before signing.

Frequently Asked Questions About HVAC in Greenwood, IL

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

The best times of the year to have your HVAC system inspected are during the spring and fall. Technicians are less busy during these times, making it easier to get an appointment. This also helps get your system ready for the summer and winter, which is when it normally 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 your home's temperature. Always keep your thermostat as close to the outside temperature as you can, and try to adjust it only a few degrees at a time. You could also consider installing a smart thermostat.

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

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 usually be more effective than window units for cooling.

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).

Your HVAC company may have financing options via a third-party lender, or you may 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 on a regular basis.
  • Schedule regular inspections to take care of issues as they arise.
  • Make sure your doors and windows are well-sealed and keep your attic well-ventilated.
  • Install a smart thermostat. If you aren't able to purchase one, try keeping your inside temperature as close to the outside temperature as you can.
  • When replacing part of your HVAC system, explore Energy Star-certified or similar environmentally friendly options.

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