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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 Department of Energy. You don't want to spend more than you need to on temperature control in your Harwood Heights home, so it's critical that all systems are functioning properly.
Our list of Harwood Heights' top HVAC companies can help you save money by getting your HVAC system repaired, installed or replaced by the right person for the right price.

Our Rating
User Rating
Informative resources
Clear pricing policy
Prompt service delivery
Reliable customer support
Free quotes
Services Offered

Our Rating
User Rating
Clear pricing policy
Informative resources
Free quotes
Services Offered

Our Rating
User Rating
Clear pricing policy
Prompt service delivery
Informative resources
Reliable customer support
Free quote
Services Offered

Our Rating
User Rating
Free quotes
Clear pricing policy
Informative resources
Reliable customer support
Services Offered

Our Rating
User Rating
Clear pricing policy
Reliable customer support
Informative resources
Free quotes
Services Offered

Our Rating
User Rating
Informative resources
Free quotes
Reliable customer support
Clear pricing policy
Services Offered

Our Rating
User Rating
Free quotes
Reliable customer support
Clear pricing policy
Informative resources
Services Offered

Our Rating
User Rating
Prompt service delivery
Reliable customer support
Free quotes
Clear pricing policy
Informative resources
Services Offered

Our Rating
User Rating
Clear pricing policy
Reliable customer support
Informative resources
Free quotes
Services Offered

Our Rating
User Rating
Reliable customer support
Free quote
Informative resources
Clear pricing policy
Services Offered
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:
A malfunctioning or aging HVAC system probably needs attention from a professional who can make repairs or install a new unit. Watch out for these common signs that your HVAC needs service:
If you notice any of these HVAC issues, have a technician inspect your system. A local professional can diagnose problems and determine whether repairing or getting a new HVAC unit is the best solution.
HVAC installation or maintenance costs change depending on your system. Common HVAC unit varieties include the following:
HVAC maintenance prices differ depending on what services are needed. HVAC systems are complex and may require different kinds of maintenance. Fees for some common services are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,960-$4,995 | |
| Hybrid Split | $3,971-$7,315 | |
| Heat Pump | $3,074-$31,328 | |
| Packaged Heating and Air | $257-$429 |
Taking care of necessary HVAC repairs and replacements when needed is crucial, but can be costly. Fortunately, there are steps you can take to minimize wear and tear over time on your system.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $64-$172 | |
| Condensor Cleaning | $1,286-$3,859 | |
| Thermostat Repair | $86-$214 | |
| Ductwork Cleaning | $412-$1,029 |
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 keep your system running efficiently, providing you with effective heating and cooling for your home.
Request estimates from at least three HVAC providers. Describe your issues and ask if specialists can inspect your system in person. Review each company's diagnoses, recommended solutions, estimated cost, timelines, and warranties. Avoid contractors that pressure you or demand payment before work.
Choose an HVAC company with skilled technicians who have proper licensing and experience. In all states, HVAC contractors have federal requirements set by the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, contractors must pass an exam (the specific exam depends on the kind of equipment they plan 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 by the state.
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 verify that your contractor meets all the requirements. You can verify an Illinois business license on the Secretary of State's website. Checking reviews on the Better Business Bureau (BBB), Yelp, Google Reviews, and similar sites can aid your decision as well. Choose a company with stellar reviews and reports of positive experiences from customers.
Always make sure you know the details of a planned project. When HVAC repairs are required, your provider should detail which parts need replacement and why. Confirm that your technician will clean and test your system after repairs are done to ensure that it’s working properly. For replacement, ask your contractor to explain the new HVAC system model, features, energy efficiency, brand, and estimated installation time. 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.
A reputable HVAC company will stand behind its repair services and equipment 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 most protection within your budget.
Get a written estimate before HVAC work starts. A full quote includes both labor and material costs. Make sure you understand and accept all terms before signing the contract.
Generally, you should have your HVAC system inspected twice a year. After an inspection, your technician will tell you what services are needed. You should also call a technician if you start to notice any issues, such as strange noises, leaks, or unusual smells. If your home has ductwork, it should be serviced every few years.
The best times of the year to have an HVAC inspection are during the spring and fall. Technicians tend to be less busy during these times, which makes it easier to get an appointment. This also ensures that your system is 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 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 avoid making drastic changes — adjust it only a few degrees at once. You might also consider purchasing a smart thermostat.
It takes around one to three days to have an HVAC system installed or replaced. If you need just an air conditioning unit or a furnace, this may take between half a day and two days. This timeline will be determined by the size of your home, how easily accessible your system is, and any new issues your technician discovers.
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 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).
Your HVAC company might offer financing options through a third-party lender, or you might be able to obtain your own loan. It's smart 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 a number of ways you can make your HVAC system more energy-efficient:
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