Once you have your measurements, you will need to gather your tools. Relining your chimney will not actually require many tools. You will want to make sure that you have the following; gloves, screwdriver or electric drill, hi-temp silicone sealant, tape measure and a hack saw or reciprocating saw. A crimping tool isn't necessary but would be help to crimp the ends of your liner. You also may want to purchase a pulling cone to attach to the liner to help guide it through the chimney; this is an optional accessory as you can guide the liner through without the cone pull just as well.