While putting up holiday lights may be a fun tradition for some, it can be a real pain for others. Hanging lights from the roof, untangling knots of lights, and climbing ladders are not everyone’s idea of fun. But that’s where professional Christmas light installers like Sparkly Clean Windows in Park City. They will take care of all your holiday decorating needs for a fee. But the question remains: should you tip them? While there is no set rule, giving a tip is generally considered appropriate if you are happy with the service. A good rule of thumb is to give a few dollars per hour of work or 10-15% of the total bill for holiday light installation.