Top-rated drain cleaners.

Best drain cleaners near San Mateo, CA

Enter your zip and get matched with up to 5 pros

Need a pro for your drain cleaning project in San Mateo, CA?

Select your specific project to find the pro for you.

TRUSTED BY SAN MATEO, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon436
    Verified drain cleaning services reviews

Top-Rated Drain cleaners in San Mateo - Updated Nov 2026

Avatar for Facilities Plumbing & Drain
Facilities Plumbing & Drain
4.8(
52
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera LocateDrain Clog or Blockage - Clear - For Business+1 more

Serving San Mateo, CA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"It was after business hours when I call regarding a drain issue. The owner of the company came out himself to fix the problem. Upon arrival the issue was assessed and the fix was done efficiently and quick. This was incredible customer service considering the times we are in meaning the pandemic. Pricing was fair and I would recommend their services."
Starbucks 100-Gal Waterheater
Sediments inside supply line
3M 100,000-Gal
dual 3m filter install
3M 100,000-Gal

+44

Response time6 hrs
Response rate100%
71 neighbors recently requested a quote
Avatar for DRAIN RIGHT PLUMBING & ROOTER INC
DRAIN RIGHT PLUMBING & ROOTER INC
5.0(
24
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+1 more

Serving San Mateo, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"My water heater was leaking and I needed it fixed asap because we had no hot water and I have small kids at home. Robert came, he saw the problem and fixed it fast and efficiently. He was professional and polite and the price was right. I will definitely call him again in the future. And have recommended him to family and friends. Thank you Drain Right Plumbing!!"
Before
After
Water heater
Descaling tankless water heater
Toilet replacements

+34

Response time3 hrs
Response rate95%
7 neighbors recently requested a quote
Avatar for Green Arrow Plumbing
Green Arrow Plumbing
5.0(
40
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera LocateDrain Clog or Blockage - Clear - For Business+1 more

Serving San Mateo, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"We highly recommend Green Arrow Plumbing. Our clogged drain was due to the corroded cast iron drain pipes original from 1957 and Cornelio replaced them in short order. While he was here, he also fixed two toilet flushing problems which two handymen had been unable to do. Cornelio was very knowledgeable, his rates reasonable, and it was a pleasure to work with him."
Water Heaters Project
Plumbing Project
Plumbing Project
Plumbing Project
Drain replacement

+50

Response time9 hrs
Response rate100%
13 neighbors recently requested a quote
Avatar for Mike Counsil Plumbing and Rooter
Mike Counsil Plumbing and Rooter
4.0(
331
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+1 more

Serving San Mateo, CA and surrounding areas

Approved (Corporate)

In business since 1994

Emergency services offered

Warranties offered

"We thought we needed just our washer drain unclogged so we called the company that had fixed that before, you guys. Guys came out. Under the house they discovered rusted sewer lines. When we had our plumbing redone years ago, the company who did those did not remove the old lines. Those old lines were up against the sewer lines and were corroding our sewer lines. So we had to replace the sewer lines. A broken line just before the city line was discovered so we had to replace that too. Anyhow, we so appreciated the kind workers who smiled and waved at us. They worked around our water schedule as we have a physically disabled adult son we care for. They let us watch all the things they had to do. I took pictures and the guys were fine with that. My brand new front yard was not ruined by trenchless sewer system that went in. And my yard looks like we never had sewer lines done. It was amazing. Yes, we would recommend you to all."
Preparing a safe environment for working on a sewer line replacement.
Water heater installation with expansion tank
Additional Photos
Additional Photos
Additional Photos

+28

Response time8 hrs
Response rate100%
Recommended by81%of homeowners
...
Showing 1-10 of 369
Drain Cleaning FAQs, answered by experts

A clogged air gap can cause a dishwasher not to drain. There are, however, other potential issues that can lead to improper drainage. For example, if you have attached the air gap to a garbage disposal and forgotten to remove the knockout plug, wastewater may backflow into the dishwasher. Check that the air gap is installed properly, and then look for clogs in the air gap and dishwasher filters. 

If you have a sink stopper, it can feel more challenging to clean the drain without removing it, but here are a few simple steps:

  • Pour ½ cup baking soda into the drain using a funnel

  • Pour 1 ½ cups vinegar into the drain

  • Close the sink stopper for 15–20 minutes

  • Open the drain

  • Pour 2 cups of boiling water down the drain (be cautious as boiling water can damage some types of pipes)

If the drain isn’t unclogged, repeat the process.

Flushing the toilet only to realize it’s clogged can cause anxiety. To avoid a clogged toilet, use less toilet paper. If you notice that the toilet is flushing and refilling slower than usual, you can use a plunger to clear clogs in the S-trap. If that doesn’t work, call a plumber to check your system and possibly clear the drain lines.

Clogs in a sprinkler valve can be caused by various factors, including debris in the water supply, sediment buildup inside the valve, or damage to the diaphragm. Debris and sediment can accumulate over time, obstructing the valve's passages and impeding water flow. Damaged diaphragms may develop tears or holes, leading to blockages and affecting the valve's ability to open or close properly. Regular maintenance and cleaning can help prevent and address these issues, ensuring your sprinkler valve operates smoothly.

Keep your egress window from flooding by ensuring that the drainage system in the window well is clear and in good working condition. Inspect the window well every few months to remove any blockages and test the drainage system. It’s better to discover potential problems before your window well fills with water during heavy rain.

The San Mateo, CA homeowners’ guide to drain cleaning services

From average costs to expert advice, get all the answers you need to get your job done.