COMET background + logo MID.jpg
  • Sewer and drain specialists

  • Licensed, insured & bonded

  • Full-service plumbers

  • Competitive rates

  • 100% Guaranteed work!

Your local plumbing service in South Bay

We are the best locally owned and operated plumbing & sewer company in Sunnyvale and Silicon Valley. ​ Our plumbers service Sunnyvale, Santa Clara, Mountain View, Los Altos, San Jose, Cupertino, Saratoga & Campbell, CA. We strive to always give the most honest and fair pricing served with the best customer service and high-quality workmanship.


Our quotes are always 100% free and our rates never go up because we believe that emergency plumbing is not something you can control or plan, so it should NEVER be the customer's fault if something should happen on weekends, holidays, or in the evening. So give us a call! We're your local, friendly, and dedicated plumbers.






​We help you find the most cost-effective and best solution to fit your problem to save you time and money. We are able to underbid virtually every other plumbing company in Silicon Valley. Call us now and let us show you true value, great service and honest prices.



If you have rusty water, low water pressure, rattling and banging pipes, then replacing your old galvanized water pipes might be just what you need. Call us for your free estimate.



Traditional Tank or Tankless Water Heaters – We dispose of your old water heater FOR FREE with any new water heater installation.



Hydro-jetting has the power to burst open some of the toughest blockages that might be found in a sewer line and at the same time scours the full diameter of the pipe, flushing debris and leaving lines clear.



Keep getting a sewer main line back up & over flowing toilets? Call our specialists now to inspect & diagnose your sewer line problem.


Sewer line replacement doesn't mean destroyed yards, ruined driveways or devastated parking lots. Comet’s trenchless sewer line repair causes less damage than traditional repair methods. Trenchless repair is our next step in quality sewer maintenance with less environmental impact.



Leaking or Broken Water Mainline (fresh water supply line) spot repairs and full replacements.



We offer many more plumbing services. Call us now so we can help try to solve your plumbing problems, and if we can’t, we will do our best to get you the help you need!



We believe we are the most professional and reputable emergency plumbing company across the Silicon Valley. We give you a free plumbing quote and promise to be the best local emergency plumber with the highest quality skills with fair pricing.