2025 Best HVAC Tools List: The 10 Must-Have HVAC Tools for Service Techs

Screwdrivers

Next up: screwdrivers. You're going to need a solid set---different sizes, different heads, and of course, insulated handles to keep you safe from electrical shocks. You'll be unscrewing everything from vents to thermostats, and sometimes it feels like you're tightening or loosening something every minute. Having the right screwdriver in hand is a total game-changer.

Plus, make sure your set includes a variety of screwdriver types. Some will work better for certain tasks, so it's not a one-size-fits-all situation. A good screwdriver will save you time and effort, and let's face it---time is money in this line of work!