http://www.gggcorp.com/wiperblades.htm
(Gold Glass Group)
Martin or Joe (Gold)
I am not going to disclose our pricing as this is private info.
You should be able to sell a pair for between $15.00 and $20.00 installed and make a fair profit that makes it worth your time. This is a good add on service and a nice additional source of revenue. You will find that most customers do not change their wipers as often as necessary and they can end up scratching their windshield. Customers will be more than happy to pay you a fair price to install them immediately so they don't have to worry about it. Not a hard sell item. Only downfall is that you need to have a lot of wipers on hand. There are about 16 or 17 different sizes of which you would really need to have about 10 of those sizes for most vehicles. With 15 individual wipers per box/per size, that is 150 wipers at minimum. You can go thru 15 of a size real fast if you work hard and sell, sell, sell.
Euro wipers (frameless) are also becoming more and more common and are an entirely different story.