Yes, it is customary to tip installers for their work. The amount you should tip depends on the level of service they provide, but $10-$20 is generally a good range. If they went above and beyond in terms of service or did a particularly difficult or complicated installation, you may want to tip more. Thank them for their hard work!

Yes, you should tip the Best Buy appliance installers. They work hard to get your appliances set up and running, and they deserve a little something for their efforts. How much you should tip them depends on how happy you are with the job they did, but $5-$10 is a good ballpark range. You can also give them a few bucks worth of food or drink as a thank-you.