The answer to 'sod installation turning brown' is that there are several common causes, including improper installation, lack of water, disease, or pest infestations. Symptoms may include yellowing, wilting, or patchy brown spots in the sod. Solutions can include adjusting watering schedules, treating for disease or pests, or in some cases, re-sodding the affected areas.
For minor issues, homeowners may be able to troubleshoot and resolve the problem themselves. However, for more severe or persistent problems, it's best to consult a professional landscaper who can properly diagnose the issue and recommend the appropriate treatment.