How to Choose an HVAC Contractor

Whether you just need repairs or you are setting up a brand new HVAC system in your house, it is best to let the experts get the job done. You need to choose an HVAC contractor who is truly professional and reliable. Here is a list of questions to ask when choosing an HVAC contractor.

  1. Do they perform a total home and equipment inspection?

A proper HVAC contractor will need to do a total home and equipment inspection before proposing any services. This is because they need the inspection to find out what your house needs from its HVAC system. Even simple services like regular checkups need a thorough inspection to ensure the optimum performance of your HVAC system. This is why ECM Air Conditioning provides a FREE 99-point in-home energy assessment with a new AC Estimate.

  1. Do they perform a heat load calculation?

A heat load calculation is more than just measuring rooms. Many other factors could affect the heat gain and loss inside your house. A proper heat load calculation will help your contractor determine the proper equipment sizing, which is crucial for the efficiency of your entire HVAC system.

  1. Do they inspect your ductwork in the attic for air leaks?

Leaks force your HVAC system to work extra hard. Your machine will overheat, which can increase your electricity bill and decrease the lifespan of your HVAC parts. Unfortunately, sometimes we don’t realize there are leaks in our house. That is why you need your HVAC contractors to check it out.

  1. Do they measure the maximum air capacity of your ductwork?

Knowing the capacity of your ductwork can help your contractor see if your ductwork is the proper size. Incorrectly sized ductwork may harm your air quality and cause the machine to make disturbing noises.

  1. Do they re-engineer your duct system for proper airflow distribution? Do they engineer their systems to match the manufacturer’s required specifications?

Each house is different. A good HVAC contractor will adjust the system to suit the house’s requirements as well as the specifications proposed by the manufacturers. This is important for energy efficiency and your family’s comfort.

  1. Do they guarantee comfort and a balanced airflow distribution system?

An HVAC contractor who offers a guarantee means they have confidence in their work. But just in case they do the job wrong, you will not need to spend more money to repair the damage.

  1. Do they pull the required permits to ensure your safety? Do they pull an electrical permit or a mechanical permit to ensure proper code compliance?

Code compliance is designed to protect you as customers. It includes any standardization to make sure your house’s HVAC system is properly installed. Starting the work without a required permit is against the law and may cause the contractor to lose their license.

  1. Make sure the company you choose is properly licensed and insured.

To acquire a license, an HVAC contractor needs to remain educated and updated on the latest technological developments. Therefore, hiring a licensed contractor means hiring a competent professional to take care of your house. Hiring a licensed professional also protects you legally in case something bad happens.

As for insurance, it is necessary to make sure the company is responsible for its workers’ safety. You don’t want to get all the blame and bills if an accident happens, do you?


Taking care of your HVAC system is important to keep it working effectively and efficiently, so you might need to leave it to the professionals. Even so, be careful when choosing an HVAC contractor. Otherwise, you might waste your money.


ECM Air Conditioning, with its headquarters located in Boynton Beach, FL, provides air conditioning services within Palm Beach County, Broward County, Martin County, and St. Lucie County. If you’re having issues with your HVAC system, we’re on-call and ready to assist you with your air conditioning needs. So if you’re in need of an HVAC Contractor, don’t hesitate to contact us today to schedule an air conditioning service call diagnostic! Our HVAC experts will diagnose any issues that may be occurring with your HVAC system and help to repair your AC issue on the spot.

Best of all because ECM is the largest HVAC company in South Florida our local warehouse facility that is 69,000 SQFT houses over $1 million in inventory and fully stocks our 127 vehicles on the road, making us one of the very few AC service companies capable of repairing most issues right on the spot. That means no waiting and no downtime without air conditioning for you & your family in the blistering Florida heat! 

Call us at 561-295-1763 or contact our HVAC team online by clicking here.

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