I had them replace the portion of my irrigation system that is PVC pipe, metal shut off valves, foam and tape. It is the portion of the drip system that is above ground by the front door. The technician replaced 3 feet of foam, 3 feet of PVC pipe, and two metal shut off valves; maintenance took 20 minutes and the total was ~$400.
Pros: pipes don't leak
Quick response time
Cons: $$$$