COMET PLUMBING & SEWER CO. is a plumbing service and repair firm that specializes in mainline and sewer plumbing repair and replacement.

Our mission is to strive to earnestly render the most qualified, punctual, honest, and unmatched plumbing experience possible.
We do this by training, investing in, qualifying, drug testing, and rewarding our employees who are expected to perform and conduct themselves in the most
professional manner at all times.
We pride ourselves in the fact that our combined efforts as a company will encourage and advance the interests, needs, and expectations of both ourselves and our customers.
Every staff member has demonstrated the high expectations we place upon our company values such as
integrity, honesty, personal accountability and trust
By combining these standards with expert and
cutting edge workmanship, we will have attained our mission goals.

But, in short, we're just a group of HONEST & HARDWORKING people.

Great Company,Great Service Techs.I had a plumbing problem that required a plumbing contractor not some guy in a truck with a 50' power snake .
The man from Comet was very professional Did not talk down to me as others have .Assessed the problem gave me a very reasonable estimate and preformed the work on time.And no extra charges!!!!! I would use this company again and do not hesitate and recommend it. Its nice to know there are still honest and reliable Plumber Contractors out there
Bruce Houseman   12/5/2011

Richard K. April 12, 2011 
Los Altos plumber. ★★★★★
I found this company in my Los Altos Yellow Pages. They checked out my hot water heater which was very noisy and recommended we change it. I never thought about buying a larger capacity water heater for our home until the plumber had mentioned it. So not only do I have a new heater but also more hot water. Now the family will be happy :)

Deepak S. March 09, 2012 
Reliable and professional service. ★★★★★
My family and 
I just moved in, my mother was alarmed when the kitchen sink wasn't draining properly. The owner of Comet Plumbing came quickly to check the plumbing under the sink which I knew was old.

Andrew unblocked the clog and installed new pipework beneath the sink. I am very grateful,it was only $99.00 for this great service.


100 S. Murphy Ave.

Ste. 200

Sunnyvale, CA 94086

Tel: 408-502-0932
Fax: 800-805-9025

​Toll Free: 1800-805-9025