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Last Updated: February 25, 2025
On average, 55% of the energy used in American homes is for heating and cooling, according to the Department of Energy. In Windsor, much of your energy expenses probably come from running your heat during the winter. The average resident spends $170 on heating every month.
We've put together this guide to Windsor's top HVAC companies to help you find the best person for your job and get your system into its best shape ever.

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

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

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

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

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

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

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

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

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

Our Rating
User Rating
Reliable customer support
Clear pricing policy
Informative resources
Free quotes
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:
If your home's HVAC system isn't working correctly or suffering from a lot of wear and tear, you may need to hire an HVAC contractor for maintenance or replacement. Look for these common indicators that your system requires expert attention:
Arrange an inspection if you notice any of these issues. A local technician can inspect your system, detect problems, and determine whether you need repairs or a new HVAC unit.
The cost of HVAC installation or maintenance changes depending on the kind of unit you have. Common kinds of HVAC units include the following:
The price of HVAC maintenance also varies depending on the kind of work you're having done. HVAC systems are complex and might require different kinds of maintenance. The cost of some common repairs is as follows:
| HVAC Unit Type | Cost | |
|---|---|---|
| Split | $1,893-$4,827 | |
| Hybrid Split | $3,836-$7,068 | |
| Heat Pump | $2,971-$30,269 | |
| Packaged Heating and Air | $249-$414 |
It's important to repair or replace your HVAC system when it's broken, but it can also be expensive. Thankfully, there are some steps you can take to reduce wear and tear on your HVAC.
| Service | Cost | |
|---|---|---|
| Filter Replacement | $62-$166 | |
| Condensor Cleaning | $1,243-$3,729 | |
| Thermostat Repair | $83-$207 | |
| Ductwork Cleaning | $398-$994 |
Knowing what to look for in an HVAC company is important for a successful project. Look for an experienced, licensed contractor that can offer you peace of mind and make sure your system provides reliable heating and air conditioning for your home.
Request estimates from three or more HVAC companies. Explain your issues and ask if technicians can inspect your system in person. Review each contractor's diagnoses, recommended solutions, estimated cost, warranties, and timeline. Avoid providers that pressure you or demand payment before work.
It's important to choose an HVAC company that employs technicians with the proper qualifications and expertise. HVAC contractors in all states have federal requirements set by the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, a contractor must pass an exam (the specific exam depends on what 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.
Colorado doesn't have state-level licensing requirements for HVAC contractors; however, those who run an HVAC business are required to have a Colorado business license, as well as insurance. It's a good idea to check with your municipal government to learn if there are local licensing requirements for HVAC contractors. Any contractors who do electrical or plumbing work in addition to HVAC work must be registered with the State Plumbing Board or the Colorado Electrical Board, respectively. You should also look at reviews and complaints on sites like Yelp, the Better Business Bureau (BBB), and Google Reviews. Choose a company with glowing reviews and testimonials about fantastic customer experiences.
Make sure you understand the details of any project before it begins. When getting HVAC repairs, have your provider detail which parts require replacement and why. Confirm that your technician will clean and test your system after the repair to ensure that everything works. When replacing your HVAC system, ask the contractor to describe the new estimated installation time, brand, features, energy efficiency, and model. Before work starts, ask how your provider plans to accurately size the unit for your home and how much it will cost.
Reputable HVAC companies stand behind their work with warranties. Compare warranties from different companies, keeping in mind that broader coverage is better. Look for the provider that offers the most coverage for a reasonable price.
Get written quotes before starting HVAC work. The quote should cover costs for both labor and materials. Review all terms carefully before signing.
You should have your HVAC system inspected approximately twice yearly. Following an inspection, your technician will tell you if any services are needed. You should also schedule an inspection if you start noticing issues such as leaks, unusual smells, or strange noises. If your home has ductwork, it should be inspected every few years.
Normally, it's best 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 likely 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. During all seasons, keep your thermostat as close to the outside temperature as you can, and avoid making drastic changes — adjust it only a few degrees at once. You might also consider purchasing a smart thermostat.
It takes roughly one to three days to have your HVAC system installed or replaced. If you only need a furnace or a single air conditioning unit, this may take anywhere from a few hours up to two days. This timeline can be influenced by the size of your house, the accessibility of your system, and any issues your technician discovers.
For a 2,000-square-foot home, you'll want a furnace that's between 50,000 and 80,000 BTUs (British thermal units). In Windsor, you'll likely look for a furnace on the higher end of or above this range.
For a 2,000-square-foot home, you'll also want to purchase an air conditioning unit with between 2.5 and 5 tons of capacity. Typically, if your home is over 1,000 square feet, central air will be more effective than window air conditioning units.
Usually, HVAC financing is offered through a third-party lender. If your HVAC company doesn't have financing options, you could consider taking out your own loan. Be sure to speak with a financial advisor and your HVAC company to determine what options are available and appropriate for your situation.
There are a number of ways you can make your HVAC system more energy-efficient:
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