Replacing your HVAC system is a big investment, and choosing the right contractor can make all the difference. A quality installation isn’t just about the equipment—it’s about the care, expertise, and attention to detail your contractor puts into the job.
Double-checking every single step of a contractor’s process is a tall order for the average homeowner. But asking the right questions beforehand can go a long way towards choosing the right company.
Don’t worry about independently verifying every last detail of their responses—the following types of questions will give you valuable insight into the type of contractor you’re talking to and the quality of workmanship you can expect.
Start by asking how your contractor prepares for a new install job:
Load calculations determine the right system size for your home. A contractor should be able to explain to you the specific software they’ll be using for your load calc—here is an ACCA-approved list to reference. (Any contractor who tries to tell you a load calculation is unnecessary is a contractor you should avoid working with!)
Look for AHRI (Air-Conditioning, Heating, and Refrigeration Institute) certification or the Energy Guide label to confirm the system meets its efficiency claims and that your contractor is actually installing the equipment they’re charging you for. Here’s what they look like:
The installation process is where the technical expertise of your contractor matters most. A high quality HVAC installer should be able to answer the following questions about their installation process:
Proper airflow ensures your system operates efficiently and distributes air evenly throughout your home.
Correct refrigerant levels are essential for effective cooling and energy efficiency.
This ensures the system is safe and functioning as it should.
Once your system is installed, your contractor should be able to provide the documentation and guidance you need to keep it running smoothly. Ask if they are able to:
This shows they’ve tested the system and confirms that everything is set up correctly.
You should receive the manufacturer’s warranty, their warranty, and maintenance recommendations.
Regular maintenance is key to keeping your system efficient and reliable.
If all of this sounds like a lot to manage, don’t worry! Contractors who issue Quality Installation (QI) certificates will automatically cover the majority of the issues raised above, particularly the ones that have to do with the actual installation process itself. Powered by an advanced HVAC app called measureQuick, the QI certificate process verifies that every step of the installation is done correctly, so you don’t have to double-check the details yourself.
Here’s what you can expect from a contractor offering QI certificates:
In addition to asking these questions, look for a contractor who:
Best of all, look for a contractor willing to issue an ACCA QI certificate for your system! This ensures you’re working with someone committed to delivering quality, transparency, and value.
