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TRUSTED BY CASTRO VALLEY, CA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon859
    Verified drain cleaning services reviews

Top-Rated Drain cleaners in Castro Valley - 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 Castro Valley, CA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"These guys are great, we had a sump pump replaced and we were extremely happy with everything, the quote, quality of work and overall experience. We will definitely be using them in the future. Thank you Facilities Plumbing & Drain. We recommend with full confidence."
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 Raider Plumbing
Drain Raider Plumbing
5.0(
21
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business

Serving Castro Valley, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Adam , the plumber , is a professional. He explains the issues patiently and logically . My sewer line was clogged up and he used the snake and camera to show me the roots that were causing the problems . He recommended hydro blasting the line in order to remove roots. He responded within minutos of posting on Angie's list. He was puntual and started the job on a Saturday afternoon and completed on a Sunday ."
2 neighbors recently requested a quote
Precise Plumbing
4.8(
447
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+1 more

Serving Castro Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Customers say: Quality work

"J. Cruz and his assistant were professional and honest. They cleaned our drains and left both bathrooms clean. I highly recommend them for plumbing needs."
Vessel sink
Floor drain and floor sink
Commercial floor drain
Laundry room
Pressure assist commercial toilet

+3

Response time6 hrs
Recommended by95%of homeowners
Avatar for Chandler's Plumbing
Chandler's Plumbing
4.3(
746
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera LocateDrain Clog or Blockage - Clear - For Business+1 more

Serving Castro Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Emergency services offered

"Gerardo was great: on time, courteous, explained and cleaned up things well. I was able to get a same-day appt. which worked out really well for me. After cleaning my clogged drain he was able to fix an old shower hot water faucet that was worn out. The only thing that would have been nice is to have a written receipt before Gerardo left the jobsite. He said his office will send me one."
Sewer Line Camera Inspection
Shut-Off Valve Repair
Main Water Line Replacment
Water Heater Installation
Tankless Water Heater Installation

+310

Response time4 hrs
277 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
722
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+1 more

Serving Castro Valley, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"This is the third time I have used Albert Nahman. This time was for a water leak with an unclear origin. They did a great job diagnosing the problem and took the time to explain what they found and offer options on potential fixes. I really appreciate the care their plumber took in tracking down the problem and providing a realistic quote for the cost and time to fix the problem. They also arrive on time and do a great job cleaning up after the work is done. A+++ company. Will definitely use them again the in future."
Living room Mini-Split
Aquasana home Filtration
Almost no disturbance at EBMUD meter
Navien with filtration to protect the heat exchanger
New house valve and Pressure Reducing Valve

+73

Response time8 hrs
Response rate100%
44 neighbors recently requested a quote
Avatar for Costello's Plumbing
Costello's Plumbing
4.9(
18
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+1 more

Serving Castro Valley, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"I highly recommend the company (Costello's Plumbing) as well as the employee who helped us (Miguel). My wife spoke with Mr. Costello this morning, and booked an appointment for Miguel (one of his workers) to come over and look at the situation / prepare an estimate. He did so (arriving iwihin the appointment window), gave us a good quote, and indicated the two parts that needed replacement (the garbage disposal unit and the cold water dual shut-off valve. He indicated that we could purchase those parts through the company, or if I had the parts onhand, he could just install them (saving money). Fortunately, The Home Depot nearby was open, and I was able to get the two pieces fairly quickly. Miguel then: * installed the garbage disposal (and took care of getting rid of the old one), * connected the replacement shut-off valve, * replaced the faucet itself, and made sure that none of it leaked. A job well done!"
Response time3 hrs
Recommended by100%of homeowners
Avatar for Plumbing 1 Builder's Inc
Plumbing 1 Builder's Inc
5.0(
17
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera LocateDrain Clog or Blockage - Clear - For Business+1 more

Serving Castro Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Warranties offered

"Leo did a very extensive plumbing repair that required digging through my bathroom floor and replacing a huge pipe to the outside. He also prepared and installed piping and fixtures for a bathroom remodel. Always showed up when he said he would and had a great crew. Cleaned up as well. Would highly recommend."
Response time3 hrs
Response rate85%
61 neighbors recently requested a quote
Avatar for Alan’s Plumbing and Drain
Alan’s Plumbing and Drain
5.0(
4
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera Locate

Serving Castro Valley, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Highly Recommend Alan! Alan did an amazing job clearing out my sewer main. His pricing was completely fair and upfront with no surprises. He truly went above and beyond the call of duty to make sure the job was done perfectly. If you want an honest, hardworking professional, hire Alan!"
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Drain Cleaning FAQs, answered by experts

There are many things that could cause your basement floor drain to back up. One significant cause of a drainage backup is flushing non-flushable items, such as wipes, paper towels, and facial tissue. Other causes of a backed-up basement floor drain include tree roots impeding the drain pipe or an accumulation of hair, oil, and grease. 

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.

Applying drain cleaner is a common DIY solution to clogged drains, but it can be extremely harmful to your pipes and lead to corrosion and leaks. It is almost always better to try snaking a clog than using a drain cleaner, but the best solution is to hire a professional plumber. They can locate the clog and gauge the severity using a camera system and then decide if using a plumber’s snake, auger, or drain cleaner is the best option to remove the clog and limit damage to your plumbing system.

If you leave liquid drain cleaner for too long, it will start breaking down your drainpipes. The chemicals in these cleaners can cause cracks, corrosion, and leaks in your pipes. They can also damage plumbing fixtures and even cause environmental damage if left too long without rinsing away.

On average, a plumber will take 30 minutes to two hours to clear a clogged drain. If the clog is located close to the drain or an access point and isn’t severe, the project will take about half an hour. If the clog is deep within your plumbing system or is a severe blockage, it can take two or more hours to remove the clog. For this reason, main line clogs tend to take longer, usually between two and three hours.

The Castro Valley, CA homeowners’ guide to drain cleaning services

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