OISA is a locally owned business that specializes in irrigation repairs/installations, drainage solutions and outdoor landscape lighting installation/repair. These services are offered to the commercial and residential markets. OISA believes in providing excellent customer service and the best quality workmanship to its customers. To attain the goal of another satisfied customer, OISA includes with its installations, a follow up quality control visit. This ensures that we as a company stand by our philosophy, which is, "if we say it, then we do it". Our goal as a company is to be the place that you call when you have a need for irrigation, drainage solutions and landscape lighting.
OISA services the city of Atlanta, Fulton, Cobb, Douglas, Paulding and Dekalb Counties. Other area's maybe available upon request.
Watering InformationThe most effective time of the day to water is in between the hours of 4am - 7am. If you are watering grass, you should set your timer to 15 - 20 minutes. If you are watering plants or shrubs, set your timer for 10 minutes.
Current customers, click the link below and pay your invoice.