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Comet Plumbing & Sewer Co.

Sunnyvale Plumbers
Ranked #5 in Sunnyvale | Grade B+
4.90 (102 reviews)

Comet Plumbing & Sewer Co.

Residential plumbing and sewer contractor focused on practical solutions, punctual service windows, and clear communication from first call to final walkthrough.

Why Homeowners Choose This Business

Customers highlight clear explanations, fair pricing, punctual arrivals, and neat work areas. The crew brings needed parts to finish most repairs in one visit and offers options instead of pushing unnecessary replacements.

Service Area

Sunnyvale headquarters with regular service to Cupertino, Mountain View, Los Altos, Santa Clara, and Saratoga.

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  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.
  • Performs at or above the local average for Google rating.
  • Shows strong customer satisfaction signals based on review quality and volume.

Trust Signals

Licensing - CA Contractor License #951887

Services Covered

  Plumbing Services
  Drain Cleaning
  Sewer Line Repair
  Emergency Plumbing
  Root Removal
  Sewer Services
  Clean-out installation
  Faucet Installation
  Installations
  Repairs
  Shut-Off Valve Replacement
  Trenchless Sewer
  Pipe Inspection
  Leak Repair
  Toilet Repair
  Water Line Repair
  Residential Plumbing

Services include residential plumbing repairs, faucet and fixture installation, shut-off and supply line replacement, drain cleaning, sewer line inspection and spot repairs, root intrusion removal, and clean-out installation. Trenchless and sectional sewer solutions available when appropriate.


Reviews

Recent Reviews

4.90

(Based on 102 reviews)

Reviews consistently mention clear communication, punctuality, and projects completed as quoted. Many note fair or lower pricing compared with other bids and appreciation for solutions that avoid unnecessary work. Workmanship on sewer repairs, clean-out installs, and faucet/valve replacements is frequently praised. Several customers also mention tidy job sites and readiness with needed parts.

Google Review
Ursula Syrova on Comet Plumbing & Sewer Co.

The work was done as planned, on budget, and passed inspection no problem. The work needed was clearly explained. Andrew is a great communicator, he always arrived right when he said he would and he was respectful with his team. His was the lower of two quotes I got for the extensive work needed, and he was always happy to pause and explain what was happening.

Google Review
Rebecca Collins on Comet Plumbing & Sewer Co.

I can’t say enough about Andrew and Comet Plumbing. Tree roots had broken into the sewer line causing a backup. I spoke with four different plumbers and Andrew was the only one who didn’t try to add on to the job with extra services such as digging a trench the entire length of my yard and replacing the full sewer line. The PVC line just needed to be repaired and roots removed from one section. Andrew was very honest and did a beautiful job without uprooting my entire yard. His fee was totally reasonable and he was extremely careful with the plants surrounding the area that needed repair. At the same time he was punctual and got the job done quickly and, thankfully, with zero stress to me. He also left the job site clean and neat. The permit was signed off and the work immediately approved by the city with no problems. I highly recommend Andrew and Comet Plumbing.

Comet plumbing did a excellent job at my home . A fair price, competent, knowledgeable, efficient , clean and professional! Thank you Andy, I will be calling you for future issues if needed.

Google Review
Christine Lin on Comet Plumbing & Sewer Co.

Andrew from Comet Plumbing was wonderful! He helped install two clean-outs and fixed a root infested pipe for a reasonable price (plus nice discount). I’ll definitely be using them again!

Google Review
Ahmed Tawashi on Comet Plumbing & Sewer Co.

Great service from Comet Plumbing. He was super busy but still managed to come over the same day I called and do a faucet install. I provided the faucet, but not the hoses - not to worry, Comet had all the parts that were not included. The shut off valve needed replacing, and they had that ready to go as well. Highly recommend.

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Special Offers

Drain Cleaning Special

Clear a single residential drain with standard access.

Sewer Camera Inspection With Repair

Complimentary camera inspection when sewer repair is approved.

New Customer Savings

Discount on first-time residential plumbing service.


Frequently Asked Questions

Common calls include clogged drains, leaking fixtures, shut-off valve replacements, and sewer root intrusions. The team also performs clean-out installations and targeted sewer repairs when a full replacement is not necessary.

Yes, when inspection shows only a localized problem, a sectional repair can be completed instead of replacing the entire line. The scope is explained up front so you understand the approach and costs.

Yes, estimates are discussed before starting and the plan is reviewed on site. If conditions change, the technician will explain options and obtain approval before proceeding.

Avoid running water or flushing fixtures to prevent overflow and call for service. If accessible, locate an exterior clean-out to relieve pressure, and a technician can assess whether clearing or repair is needed.

Comet Plumbing & Sewer Co. is based in Sunnyvale and commonly serves nearby cities such as Cupertino, Mountain View, Los Altos, Santa Clara, and Saratoga. Call to confirm availability for your address.
 Verified Listing

Opening Hours


  • Monday 7:30 AM – 8:00 PM
  • Tuesday 7:30 AM – 8:00 PM
  • Wednesday 7:30 AM – 8:00 PM
  • Thursday 7:30 AM – 8:00 PM
  • Friday 7:30 AM – 8:00 PM
  • Saturday 7:30 AM – 8:00 PM
  • Sunday 8:00 AM – 8:00 PM

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Business Details


Business Rating
4.90 (102 reviews) Featured BusinessPro Listing
Address
100 S Murphy Ave Suite 200, Sunnyvale, CA 94086
Phone
Business Type
plumber
City Page

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