I've never tipped an installer. I assume since they are skilled labor, their employer is paying them accordingly. Delivery people? If it's a difficult delivery, I do. Otherwise, I assume they are again paid by their employer. I personally feel that tipping has gotten completely out of hand. I know people who give presents to their salesperson at expensive handbag boutiques! Really? They paid $12,000 for a handbag and feel they need to "thank" their SA for the privilege of paying that much for a bag? I think not...

Tip them both or at least offer water or snack. Our guys appreciate that from our clients.

Hmm ... I tip the flower delivery person, so appliance people get a tip in my book- but then again- I am not the person dealing with appliance deliveries as a rule.

No $$ but as much water and Gatorade as they want.

I tip delivery people very well, specially when they are moving heavy items in hot weather. I gave $100 each to the 3 guys who delivered my kitchen cabinets. They had a good attitude, there were lots of boxes/panels/parts and they listened to my GC's requests of where to group things and helped him review the inventory list.

When we have had appliances delivered in the past installation was performed by same guys, they are employed by our locally owned appliance store.. i tip. and offer coffee, water, or cookies if I have baked. They are very appreciative.

I tip the delivery people and the installers

It's a personal preference, a willingness to help and affordability. Some people are poor and cannot afford to tip a lot, on the other hand some people are rich and are too cheap to tip altogether... It's your preference no one is going to make you give a tip. Do what makes you feel good.

Tipping is a great way to put money in the hands of people who really need it, if you can afford it. I don't think installers make a lot more money either, especially if the work amounts to plugging the appliance in and leveling the feet. I usually offer water too.