"Note that there is a difference between “saleable condition” and “excellent condition.” When a buyer comes to look at your house, you should put your best foot forward. It’s essential to make sure everything is clean, working, and beautiful. A buyer may make their decision based on what they see on that first look-through.
If they’re stuck between two homes they love, and you have power washed your house, and the competitor hasn’t, it is likely they will choose the cleaner-looking home.
It’s just another way to bring your home’s beauty and cleanliness to the next level."