I found Drain Doctor on the internet. I had some pipe and drainage leakage and they put some lining inside the pipes. So far the results are good - no more issues or problems. I think the cost was a bit expensive, however the plumber's attitude was professional, nice and friendly; his workmanship and skills were top notch and he worked really well. Unlike other companies, Drain Doctor will follow up with their customers to make sure everything went well.