Once you’ve done the work of educating yourself about new technology — in this case, installing a cooling and heat pump system — and determined what is best for you and your home, the next steps will help ensure that your expectations are met.

For most of us, one of those steps is finding a contractor to help select the right equipment, prepare the home, and install the unit. This is the stage I’m at, having begun my own journey a few months ago, and I wanted to share some helpful advice for selecting a contractor.

As with any contractor, taking referrals, calling references, and getting at least a couple of written quotes are great basic guidelines. But there are some other things to watch for when hiring an HVAC (heating, ventilation, and air conditioning) installer. As you would check a contractor’s license and insurance, check their other certifications. Some equipment manufacturers will have a preferred installer program, which can guarantee that the installer knows the technology inside and out and understands how to maintain it or find replacement parts. And remember, especially if doing ductwork that could disturb painted surfaces, the contractor may need to be certified under the US Environmental Protection Agency’s Lead Renovation, Repair, and Painting program.

When designing your system, be sure to ask your contractor whether they consult the Air Conditioning Contractors of America “Manual J” and insist that they calculate how big a system you need. This means taking measurements around the house and investigating your home’s insulation, not just using rules of thumb, which more often than not result in oversized equipment that runs inefficiently. With heat pumps, there is no one-size-fits-all solution, so that’s a red flag if an installer tries to sell you on only one type of unit. Look for a contractor who can negotiate your heating and cooling needs and make helpful suggestions.

A portion of most cooling and heat pump systems is installed outside, so ask where those components will be installed; consider their aesthetics, exposure to snow and ice, and the slight hum they might emit. Ask where exterior piping will be routed. If electrical work is needed beforehand, ask whose responsibility it is to find an electrician. Also, ask what type of warranty the installer offers and whether they will explain how to use your new system. Installing a heat pump generally qualifies you for rebates, so make sure you know whether you or the installer will be responsible for submitting the paperwork to obtain the rebates.

Most importantly, beware of any contractor that says that “heat pumps don’t work in the cold.” This has been thoroughly debunked, and modern heat pumps are nothing like those manufactured even a decade ago.

By asking the right questions, not only will you learn a lot about heat pumps, but you’ll also show your contractor that you know what you’re talking about. Good luck!

For more information, visit www.heatsmartct.org/northhaven and www.energizect.com/find-a-professional/contractor.