Roto-Rooter Plumbing & Water Cleanup

What They Do

Water DamageMoldMold TestingSewage

• Augering
• Basement Flooding
• Bathroom drain cleaning
• Burst Pipe
• Clogged Drains
• Commercial Dishwashers
• Commercial Plumbing
• Commercial grease trap installation
• Commercial plumbing services
• Detección de fugas
• Dishwasher installation
• Drain cleaning
• Drain snaking
• Emergency Call
• Emergency Drain Service
• Emergency Flood Services
• Emergency plumbing services
• Faucet Pipes
• Faucet installation
• Flood Damage Restoration
• Flooding Clean Up
• Frozen Pipes
• Garbage Disposals
• Garbage disposal installation
• Grease trap treatment
• Home Plumbing
• Instalación de Grifos
• Instalación de bombas de sumidero

In Their Own Words

Need a trusted emergency plumber in Diamond Bar, CA? Roto-Rooter is your local plumbing company serving homes and businesses since 1935. Our experienced plumbing technicians are your dependable 24-hour plumber - available 24/7, 365 days a year for fast, professional emergency plumber response. We handle drain cleaning service, sewer line repair, plumbing video inspection, water damage restoration, water heater repair and replacement, burst or leaking pipes, toilet plumbing repair, garbage disposal repair, dishwasher repair, leaking faucet repair, and residential and commercial plumbing. Roto-Rooter is fully licensed and insured. Call Roto-Rooter for prompt, reliable local service in Diamond Bar!

Written by the business on its public profile. We have not verified these claims.

Before You Call Roto-Rooter Plumbing & Water Cleanup

1. Do you take moisture readings every day and will you give me the drying log?
2. Are your technicians certified in water damage restoration?
3. Where do you think the moisture is coming from, and who fixes it?
4. Will you set up containment and negative air, and how will you protect the rest of the home?
5. Do you also do remediation? If so, who checks your work?

California requires a state contractor license for most repair jobs over $1,000. Ask for the number and check it with the Contractors State License Board.

Reviews on Other Sites

• Yelp

  4.4 from 8 reviews

  Read on Yelp

Found on each site on September 24, 2026 and matched to this location. Ratings on different sites use different rules, so read a few reviews rather than comparing the numbers.

How Their Reviews Break Down

Counts from public listings as of September 23, 2026. A handful of reviews says less than a few hundred.

Read This While You Wait

• DIY with careWhat to Do in the First 24 Hours After Water DamageAn hour by hour plan for the first day after water damage. Make it safe, stop the source, document, remove water and start drying before mold can start.
• DIY with careSafe DIY Mold Cleanup for Areas Under 10 Square FeetA step by step method to clean up mold under 10 square feet safely, with the gear to buy, what to throw away, why bleach is not the default, and when to stop.
• Call a proMold Testing, When It Is Worth It and How to Read a Lab ReportWhen a mold test is worth paying for, which kind to ask for, why store kits mislead, and how to read spore counts, outdoor controls and a lab report yourself.
• Call a proSewage Backup Cleanup, What You Can and Cannot DoWhat to do when sewage backs up into your home. How to stay safe, what you can clean yourself, what must be thrown out, and when to call a specialist.