I've known Steve for a long time and I am always happy with his services. I've used Advanced Testing Services for backflow tests, rebuilds, and investment property plumbing services. No one beats their prices or customer service. Whenever I have called in to schedule, I always speak with the owner, Steve, who takes care of everything from the services to the billing. He submits all documentation to the Erie Water Works which allows it to be stress free. Advanced Testing Services is a rock solid business that I will trust for many years to come.