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Commercial Rooftop HVAC Unit Costs

If you operate a commercial business or have a commercial facility, a rooftop HVAC system could be the right solution for you. For more information on rooftop HVAC unit costs, call USA Home Improvement at (844) 468-7244.

There are a lot of different solutions for rooftop HVAC systems, and they all ring up at different prices, too. It can be challenging to figure out why a specific system is right for you or exactly how much it will cost without the help of a professional.

Factors That Contribute to the Cost of a Rooftop HVAC System

However, there are a few factors that contribute to cost. Familiarizing yourself with those factors could give you a better idea of how much it will cost. And it will help point you in the right direction when it comes to which unit you might need.

The Cost

One of the most significant factors in how much your rooftop HVAC system will cost is how large it is. HVAC units are measured in tons. Systems with higher tonnage are more expensive and more powerful.

Commercial HVAC units range in tonnage from two to thirty tons. To determine the tonnage you need, you need to know how many British Thermal Units (BTU) your building contains. Several other factors go into determining the HVAC size you need, too.

Building Insulation

If your building is well insulated, it does a better job of storing BTUs inside, rather than letting them escape. That means you need a less powerful HVAC system to heat or cool your space.

Property Size

If you have a large facility, you need a higher tonnage HVAC system. It's a pretty simple thing to understand, but to cool or heat more space, you need a more robust system that can produce more circulation.

Higher tonnage HVAC systems have more energy and can circulate more air faster. They work to keep your building at the desired temperature while working more efficiently. Smaller systems can't keep up, so while a large system might cost more upfront, it will save you money on energy bills.

Number of People

The occupancy of your building makes a difference, too. Each person is worth 400 BTUs. The more people you have, the more BTUs you have, and the higher the tonnage you need.

Other Sources of Heat

If you operate a warehouse with a lot of equipment that generates heat, you need additional help cooling your building. Other sources of heat can impact the temperature in your building and require a bigger commercial HVAC system.


The cost of your HVAC can vary based on the features you choose. Basic HVAC units cost less than units with air purifiers, humidifiers, smart thermostats, UV lamps, and more. These options will increase your costs but may be necessary depending on the needs of your facility.


Each manufacturer is different, and which one you choose can also affect your cost. Lennox is a well-known brand, and they provide reliable commercial HVAC units that come at a higher price. If you want to spend more upfront, you'll get a unit with a long life and energy savings on your monthly bills.

Alternatively, Carrier is known for providing quality products at reasonable prices. Your unit will operate just as you expect throughout an average lifespan without a lot of extra features.

There are too many manufacturers to list. But you can save money by purchasing a unit from a manufacturer that doesn't spend a lot of money on advertising. This step will save you money and likely get you an HVAC unit that's just as good as the others.

If you have more questions about cost or which commercial HVAC rooftop unit is right for you, call USA Home Improvement at (844) 468-7244.