I've had Greg from Streamline clean my windows for a few years now (my yearly treat to myself!) and he's always done a good job. He usually brings someone else to help him so the two of them can clean the windows of a 4 bedroom house in under 45 minutes. He charged me $125 for the job. He also does flywire screens for an extra $3 per screen if you want to really splurge. After I thanked him for the good job and admired my sparkling windows he said, "A window clean is the cheapest and quickest home renovation you can do!" I have to agree.... just hope it doesn't rain anytime soon ;)