To prevent damage to the home and its structure, any and all roofing issues should be addressed in a timely fashion by a professional roofer. However, certain situations will necessitate same-day repairs, while others can wait for an appointment to be scheduled. Leaks most commonly occur in areas with seams and material changes, such as near the chimney, flashing points, gutters, skylights, vents, and pipes. A roofer will go up on the roof to determine the source of a leak and provide a repair estimate.