Sprinklers Denver,DBA A1 Sprinkler Repair, provides fast, courteous and efficient sprinkler system repairs and service in the Denver, Colorado Metro region. A1 Sprinkler Repair has the lowest rates in Denver: Just $45 per hour. Sprinkler Blow out (winterization) for just $59.00 and Spring Start-Ups for $40.00. Denver Residents: Take care of your lawn. A1 Sprinkler Repair in Denver metro, provides the kind of fast, friendly and efficient service you and your lawn deserve.