I think you'll agree window cleaning can lead to making to much fuss with sunlight over drying, drips that must be wiped, a few drops and a water mess on the floor, small insect homes that need raser to remove, water stains that have to put on caustic glove protection, cobwebs that need to be brushed and some or most people noses get filled with all that dust and debris.
I got my grueling years of practice and now I am not bragging but window cleaning is not a chore as it use to be. Since I have the skill, and I will save you the hassle, call today. Not in California, sorry don't call. Residential and commercial prices for those in southern Cal only. . I started and give you an estimate if your serious, but it will be a range.
My philosophy is simple: If you give me total control of the glass or access you'll never see the world the same again.