" Your local plumbing service in
San Jose & the South Bay"​
  • Slab leaks experts.
  • Drain or sewer leaks
  • Leak detection services
  • Experienced plumbers serving your area.
  • All work guaranteed!
  • If you have a leak call (408) 502-0932


Your Bay Area Leak Specialist

Comet Plumbing and Sewer company specialises in leak detection, water and sewage leaks in Sunnyvale, San Jose, Mountain View, Cupertino, Santa Clara, Los Altos and Silicon Valley, we are licensed, fully insured and bonded.  Our service plumbers have performed small and large jobs in your area and have over 10 years field experience in fixing water and sewage leaks in peoples homes. Water leaks can be identified with a high water bill or even dampness or warm spots on your concrete floor. Slab leaks are common in older homes and often enough our slab leak plumbers have to excavate through the concrete to perform their spot repair in galvanized steel or sometimes even copper if a nail or re-bar has been reacting with it. 
Comet plumbing and sewer company will make the best recommendation to do a leak repair in your house. Copper is the best material for water supply. Call us now for a leak detection service if you suspect any leaks or have elevated gas and water bills. Copper Re-pipes eliminate rust, water leaks, low pressure to your faucets and are a good selling point if you decide to sell your home one day. Copper re-pipes can take 2-3 days to complete and will also increase the life of your plumbing fixtures. Your water heater can leak due to rust particles and corrosion from the your old pipes.

Call us for water heater flushing, which cleans out rust or calcium deposits inside the water heater tank.If you have a bad odor in your bathroom, call our pipe leak repair or replacement plumbers to diagnose your problem. If you have an intermittent leak in your house you may have a drain leak, consequently some dry wall or ceiling will need to be removed to access the leaking drain pipe in the wall or ceiling.
Our plumbers provide a next to none plumbing service with free written estimates 10-15% lower than other bids. Our service plumbers in Sunnyvale, San Jose and other cities carry top notch equipment to fix leaky pipes.  Our plumbers will do a free crawl space inspection of your home and  install new pipes in your home giving you peace of mind and great value for your money. Call our BBB A rated plumbers now for an emergency Plumber. No Extra charges for holidays, weekends or nights.


Pipe Leak Plumbing Repair

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