Originally Posted by Jayvis

Don't pay for rain treatment. If it rains within a week to a week and a half after you have them cleaned most companies will come back and touch them up for free.

Going rate on a residential house, no difficult climbs for a ladder is $2 per window (outside only). This also includes glass doors. More will apply for storm windows. They should also be cleaning the bottom sill, not the sides of the sills unless there are cobwebs, which they should take down as well.

So $2 per window outside, $2 per window inside.

Garage windows (those little tiny things should be included).

Basement windows may or may not be included in the estimate.

Get on a quarterly or bi-quarterly schedule. Inside glass typically needs cleaned once, MAYBE twice a year if that. You'll be shining all year round.

I have a family member that owns a business.