I had used this company for many years to blow out my sprinkler system so much more than the above $$$ figure. Last September I had them come in to blow them out, when i turned on my sprinkler system this year in spring there was a problem with one of the zones. I called them and inquired, the young lady said because the weather was cold earlier than usual last year we don't guarantee work. Your lines probably froze. She also said to check for this we will charge you to come by and confirm. If a company does not provide you with a follow up service and does not provide assurance that they have done the job right I don't think I would ever want to deal with them.