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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 U.S. Department of Energy. You want your South Lyon home to be comfortable, but you also don't want to waste your money on inefficient heating and cooling.
Our list of South Lyon's top HVAC companies can help you get your system into top shape, allowing you to save money while staying comfortable.

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

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

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

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

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

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

Our Rating
User Rating
Clear pricing policy
Reliable customer support
Services Offered

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

Our Rating
User Rating
Free quotes
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 faulty or aging HVAC system probably needs professional attention from a technician who can make fixes or install a new unit. Watch out for these common indicators that your HVAC needs service:
If you're experiencing any of these HVAC issues, we recommend having a technician inspect your system. A local professional can detect problems and decide whether fixing or replacing your HVAC unit is the correct solution.
What you spend on HVAC installation or maintenance is determined by your system type. Common HVAC unit styles include the following:
HVAC maintenance costs differ depending on the particular service needed. HVAC systems are complicated and might require different maintenance services. Fees for common services are as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,912-$4,874 | |
| Hybrid Split | $3,874-$7,137 | |
| Heat Pump | $3,000-$30,564 | |
| Packaged Heating and Air | $251-$418 |
It's important to fix or swap out your HVAC components when they become damaged, but it can also be expensive. Fortunately, there are steps you can take to reduce wear and tear on your system.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $63-$167 | |
| Condensor Cleaning | $1,255-$3,765 | |
| Thermostat Repair | $84-$209 | |
| Ductwork Cleaning | $402-$1,004 |
Knowing what to look for in an HVAC company is crucial for a successful project. Partnering with an experienced, licensed contractor can offer you peace of mind and ensure your system provides reliable heating and air conditioning for your home.
Request estimates from at least three HVAC contractors. Describe your issues and ask if specialists can inspect your system in person. Review each provider's diagnoses, recommended solutions, estimated cost, warranties, and timelines. Avoid companies that pressure you or demand payment before work.
When selecting an HVAC company, choose one with technicians that have the appropriate training, licenses, and experience. HVAC contractors in all states must obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is required 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 by the state.
HVAC contractors in Michigan must be licensed as Mechanical Contractors via the Department of Licensing and Regulatory Affairs (LARA). Contractors need to have at least three years of experience and must pass an exam. Licenses can be verified on LARA's website. You should also check reviews and complaints on sites like the Better Business Bureau (BBB), Google Reviews, and Yelp. Choose a company with glowing reviews and testimonials about fantastic customer experiences.
Make sure you know the details of your project before it begins. For HVAC repairs, have your provider specify which parts require replacement and why. Get confirmation that your technician will clean and test the system after the repair to verify that everything works. When replacing your HVAC, have the contractor explain the new estimated installation time, model, brand, features, and energy efficiency. Before signing paperwork, be sure you understand how your provider will determine the right system size for your home and what the price will be.
A trustworthy HVAC company will stand behind its repair work and installations with a warranty. The longer and more comprehensive the coverage terms, the better. Carefully compare warranty terms between contractors and choose the provider that offers the greatest protection within your budget.
Always get HVAC quotes in writing before work begins. A detailed quote will cover costs for both labor and materials. Ensure that you agree to all terms before signing the contract.
You should have your HVAC system inspected twice a year. At the time of the inspection, your technician will tell you if any services are needed. You should also call a technician if you notice new issues such as unusual smells, strange noises, or leaks. If your home has ductwork, you should have it inspected every few years.
Normally, it's a good idea to schedule inspections in the spring and fall, as technicians tend to be less busy at these times. 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 power your HVAC system uses 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 a time. You may also consider getting a smart thermostat.
It takes between one and three days to have your HVAC system installed or replaced. If you need just a furnace or a single air conditioning unit, this might take between half a day and two days. This timeline will be determined by the size of your house, how easily accessible your system is, and any new issues your technician uncovers.
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 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 may offer financing options via a third-party lender, or you may choose 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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