Sewer Line Replacement in San Mateo, CA

Don was the man. I called him when my toilets had trouble flushing. Turned out it was a clog in my main sewer line. Scheduled a time with him same day. He showed up on time and quickly got to work.<br><br>It was a tough clog but he was in and out in about an hour. He cleaned up his mess and installed my toilet back. Very pleasant experience and will definitely reach out if I have future issues. Prices are very reasonable and he was very kind to provide a 30 day warranty as well! Go with Dr. Don!!

Tom Tran

Dec 13, 2022

ASAP Plumbing Pro was called for replacing sewer line during our ongoing driveway and sidewalks project. Donald, Kong and Renato started working as early as 6am, in order not to delay the concrete and pavement. They finished the job before 9am, right before concrete men show up. They are definitely deserved the name of “ASAP”, and highly recommended!

Daniel Liu

Sep 3, 2025

Drain Doctor Don has cleared our sewer line of tree roots twice now, and we will continue to use him in the future until we have the line replaced. Great value and very reliable.

Matthew Greenwell

Mar 12, 2023

I worked with Don for a few years now. Over the years, he had helped me install a toilet, garbage disposal, and fix a few emergency nasty sewer drain clogs. He never fails to fit me into his schedule. Don is one of the most honest plumbers I have dealt with. Ask your questions and he will be more than happy to help. I switched a lot of different plumbers over the years but Don is definitely my first call now. Go with DDD Plumbing San Francisco Drain Cleaning!

행운목

Dec 23, 2022

I’ve been using Don since his business began. Don always offers the best prices for all San Francisco draining needs. I’ve used him for faucet installations, garbage disposal, drain clogs, outdoor and indoor plumbing needs, plumbing leaks, sewer cleaning, among other services for my properties. My neighbors also raved about his coverage in the San Francisco bay area region for shower installation, water tank needs, drain cleaning, sink draining, etc.<br><br>He far and away exceeds my expectations especially in the San Francisco Bay Area region where prices are exorbitant. With Don, you get bang for your buck for professional plumbing and drainage needs with free warranty for the first month! I’ll be using Don for years to come! Hey Don, time to start a loyalty program?!

liqun jiang

Dec 22, 2022

Don came right on time and was very courteous. He wore a mask and brought house booties to wear to keep my floors clean. Don quickly diagnosed the problem. The main sewer line was heavily clogged. He used his 50 foot electric snake to clean out the pipes. He was very clean. I now have a toilet that doesn’t clog and a shower that doesn’t back up. Life is good again, thanks to Don!! I would highly recommend him. He is outstanding!

Melinda Dahl

Dec 15, 2022

Came home to no hot water. Asked neighbors who to call. ASAP was true to their name. Showed up almost immediately, diagnosed the failed hot water tank, and got a replacement installed very fast. Also fixed a flow issue we had.<br><br>Good communication throughout the process, which I greatly appreciate.

Andy Berschauer

Dec 8, 2025

I've been looking for a plumber for probably 4 years now. They either don't show or Pad the quote or double the estimate, or ask such a ridiculous price that I end up buying the equipment.<br>And doing the job myself.<br><br>I was so pleasantly surprised by ASAP plumbing!... the representation, the quick call back, the professionalit, the price, the promptness and the immediate response, everything everything was amazing. I already called them back to do another job.

Gena Starkweather

Nov 6, 2025