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

Crescent Wrenches

Here's a must-have tool that gives you versatility---crescent wrenches. A set with small, medium, and large wrenches will allow you to tackle different jobs without having to run back to your truck for another size. Flexibility is key when it comes to HVAC work, and these wrenches will help you adjust fittings and secure parts.

Don't forget to grab the adjustable kind---they save space in your tool bag and can handle all sorts of sizes. With crescent wrenches, you're ready for whatever job comes your way.