4.9/5 stars on Google 500+ reviews

The people behind the trucks

Meet the team

Real people, real expertise—serving Covina and the San Gabriel Valley with honest work since 1996.

Walnut dispatch. We serve Covina, Glendora, Pomona, Chino Hills, and communities across the San Gabriel Valley and nearby L.A. & San Bernardino Counties. Our service regions →

Call (626) 332-9984
1996 Serving the Valley
24/7 Emergency Service
#803591 CA Licensed
Same Day When You Need Us

Our crew

Who you’ll meet on the job—and on the phone

From ownership to the field to the office, everyone here is focused on getting your plumbing and drains handled right—the same people and stories you know from Drain Doctor.

When you read our blog or check what we offer, the guidance matches how we actually work on site: clear options, honest recommendations, and technicians who treat your home with respect. That consistency is why families and businesses across the San Gabriel Valley have trusted us since 1996.

Joe Castro, Owner of Drain Doctor Plumbing & Rooter

Joe Castro

Owner/Operator

My name is Joe, and I am the proud owner of Drain Doctor Plumbing & Rooter. Since entering the plumbing industry in 1994, I have dedicated my career to mastering my craft and providing top-quality service to the community. After completing my apprenticeship with the PHCC in 1996, I gained extensive experience working with a wide range of plumbing systems, from troubleshooting routine issues to handling complex installations and repairs.

I believe in leading by example—ensuring every job is done right and every customer receives honest, reliable service they can count on. When I’m not working, I cherish time with my family and enjoy relaxing with a good book. My commitment to both personal and professional growth drives me to keep learning and to deliver the best possible results for every client.

Jose S., Service Expert at Drain Doctor

Jose S.

Service Expert

My name is Jose, and I have been working in the plumbing industry for four years. I have completed my education and graduated from PHCC in 2025. I’m passionate about problem-solving and take pride in helping customers understand the cause of their plumbing issues and how best to resolve them. Outside of work, I enjoy staying active by working out and spending time working on cars. I look forward to assisting you with your plumbing needs and providing friendly, knowledgeable service.

Joseph Castro, Lead Service Expert at Drain Doctor

Joseph Castro

Lead Service Expert

Joseph has been a valued member of the Drain Doctor team since 2016. With nearly a decade of experience, he prides himself on delivering exceptional service to every customer. Joseph is known for his professionalism, attention to detail and commitment to finding effective solutions for every plumbing issue. His dedication to customer satisfaction and his friendly, approachable manner have earned him the trust and appreciation of countless clients.

Candice

Project Coordinator

Candice has been with Drain Doctor almost since the very beginning! She is that friendly voice on the other end of the line when you call us and works hard to ensure that each customer has the best possible experience.

Yasmine, Office Manager at Drain Doctor

Yasmine

Office Manager

Yasmine serves as our dedicated office manager at Drain Doctor and is often the first warm, welcoming voice our customers hear. She excels at coordinating appointments, providing information, and making sure every client feels supported from the very first call. Yasmine’s attention to detail and caring approach are key to keeping our operations running smoothly and ensuring outstanding customer satisfaction.

Beyond her professional role, Yasmine enjoys exploring new coffee shops in her free time and cherishes moments spent with her family. Her passion for both her work and her personal interests makes her an invaluable part of the Drain Doctor team.

Issiah C., Service Expert at Drain Doctor

Issiah C.

Service Expert

Issiah C. is a dedicated member of the Drain Doctor team, recognized for his strong work ethic and attention to detail. He takes pride in delivering quality service and always goes the extra mile for customers. Outside of work, Issiah enjoys spending time with family and exploring new hobbies. His reliability and positive attitude make him a valuable part of our team.

Proudly serving Covina, CA & the surrounding areas

As an experienced Covina plumbing team, we have seen everything from vintage galvanized lines in older neighborhoods to modern tankless installs in newer developments. The same crew you meet here handles emergency calls (call (626) 332-9984), scheduled maintenance, and larger projects like repiping or trenchless sewer repair.

Whether you are in West Covina, Walnut, Glendora, or anywhere on our service area map, you get the same standards: licensed work, honest recommendations, and technicians who explain what they found before you approve the next step.

View areas we serve
24/7 emergency response

Emergency plumbing—We're prepared, anytime

Burst pipes, major leaks, or sewer backups? Don't wait. Our licensed plumbers are available day or night with the right tools to stop damage and fix the problem.

(626) 332-9984

24/7 Emergency Service · Same-day dispatch when you need it most

Drain Doctor on the job in the San Gabriel Valley
Call anytime (626) 332-9984

Contact

Get in Touch

Whether you need routine service or have an urgent issue, we're here to help. Schedule your service today or call us for immediate assistance.

Drain Doctor Covina

3820 Valley Blvd Unit O
Walnut, CA 91789

(626) 332-9984

draindoctor96@icloud.com

Hours

  • Monday–Friday: 8:00 AM – 5:00 PM
  • Saturday: 8:00 AM – 12:00 PM
  • Sunday: Closed

Dispatch & office

Our Walnut headquarters

Drain Doctor Plumbing & Rooter

3820 Valley Blvd Unit O
Walnut, CA 91789

Open in Google Maps (626) 332-9984

Where we work

Service regions

We’re your local plumbing company—not a referral site. Trucks roll from Walnut across the San Gabriel Valley and into nearby parts of Los Angeles and San Bernardino Counties. Each region below has its own page with neighborhoods we talk about most often.

Also serving

See our other service areas →

Don’t see your city? Contact us—we may still be able to help.

Google Reviews

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Frequently asked questions

Quick answers about service areas, emergencies, licensing, and how to reach Drain Doctor.

What areas do you serve?

Drain Doctor Covina dispatches from Walnut, California, and serves Covina, West Covina, Glendora, Walnut, Pomona, Chino Hills, and communities across the San Gabriel Valley and nearby parts of Los Angeles and San Bernardino Counties. The full list of regions and cities is on our service areas page at https://thedraindoctorcovina.com/service-area/.

Do you offer emergency plumbing service?

Yes. Drain Doctor Plumbing & Rooter provides 24/7 emergency plumbing and drain dispatch. The Drain Doctor Covina phone number is (626) 332-9984—call any time or use the Request Service option on https://thedraindoctorcovina.com for urgent help.

Are you licensed and insured?

Drain Doctor Plumbing & Rooter holds California Contractors State License Board license #803591 and is fully insured. You can verify the license at https://www.cslb.ca.gov/onlineservices/checklicenseII/LicenseDetail.aspx?LicNum=803591. Our technicians are background-checked.

How do estimates work?

Drain Doctor Covina diagnoses the issue, explains your options, and reviews the scope with you before work begins—so you can approve the plan without surprise add-ons.

Can you come out the same day?

We offer same-day plumbing and drain service whenever scheduling allows, especially for emergencies. Call (626) 332-9984 early in the day for the best availability.

Do you use your own equipment?

Yes. Drain Doctor Plumbing & Rooter uses our own trucks and tools, so you are not paying rental markups that some companies pass through, and you get consistent quality from our crew.

How do I schedule service?

Call (626) 332-9984, use the Request Service button on this site, or visit https://thedraindoctorcovina.com/contact-us/ to send a message—we follow up quickly.

What kinds of plumbing work do you do?

Drain Doctor Plumbing & Rooter handles residential and commercial plumbing, drain cleaning, hydro-jetting, camera inspections, water heaters, repiping, trenchless sewer repair, and more. The complete list is at https://thedraindoctorcovina.com/service/.

Why is my drain clogged or draining slowly?

Common causes include hair and soap in showers, food grease in kitchen sinks, foreign objects, or buildup deeper in the line—sometimes tree roots in the sewer. Store-bought chemicals rarely fix the real problem and can damage pipes. Drain Doctor Covina diagnoses with video pipe inspection when needed, then clears or repairs the line properly. Call (626) 332-9984 for help.

My shower drain is clogged or the bathtub is not draining—what should I do?

Stop using fixtures that tie into the same line to avoid backups. For a slow draining sink or stubborn shower clog, professional drain cleaning or hydro jetting clears the blockage safely. Drain Doctor Plumbing & Rooter offers same-day service in Covina and nearby—call (626) 332-9984.

What are signs of a sewer line backing up?

Gurgling toilets, multiple drains acting up at once, sewage smells, or water backing up in tubs or floor drains can mean a main line problem. Sewer line inspection with a sewer camera finds the cause—whether it is a clog, bellied pipe, or root intrusion—so Drain Doctor Covina can recommend sewer repair or cleaning. Call (626) 332-9984 to schedule.

Call (626) 332-9984