
Drain Cleaning
Professional drain clearing for residential and commercial properties across Southern California
Big job? Financing available — 0% APR options through Wisetack.
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Professional Drain Cleaning Services
Slow or blocked drains are more than an inconvenience — they can signal deeper plumbing issues. Our drain cleaning services clear everything from minor kitchen clogs to severe main line blockages, using professional-grade equipment to restore full flow and prevent future buildup. We provide drain cleaning in Upland, Chino, and Pomona, as well as throughout the entire service area.
- ✓Kitchen and bathroom drain clearing
- ✓Main sewer line snaking
- ✓Floor drain and utility sink cleaning
- ✓Preventative maintenance plans available
- ✓Camera inspection to identify root causes
- ✓Same-day service in most areas

What We Cover
Services We Provide
Kitchen Drains
Grease, food particles, and soap scum build up over time. We clear kitchen drain clogs and restore proper flow.
Bathroom Drains
Hair, soap residue, and mineral deposits cause slow bathroom drains. We clear them completely and prevent future issues.
Main Sewer Line
When multiple drains slow down simultaneously, the main sewer line may be blocked. We snake and clear main lines efficiently.
Our Promise
Why Choose Regal?
Honest Pricing
Upfront, transparent quotes before any work begins. No hidden fees, no surprises — even in emergencies.
Fast Response
24/7 availability for emergencies. We arrive quickly and work efficiently to minimize damage.
Quality Workmanship
Every job backed by our commitment to premium craftsmanship and lasting results.
Explore
Other Services We Offer
Emergency Plumbing
Rapid-response emergency plumbing for Ontario, CA and surrounding cities - we’re on call around the clock.
Learn More →Sewer Line Repair
Camera inspection, trenchless repair, and full sewer line replacement.
Learn More →Water Heater Services
Installation and repair of tank, tankless, and heat pump water heaters.
Learn More →Slab Leak Detection
Electronic leak detection beneath concrete slabs with minimal disruption.
Learn More →Hydrojetting
High-pressure water jetting to scour pipe walls and restore full flow.
Learn More →Gas Leak Detection
Licensed gas line detection, repair, and pressure testing for safety.
Learn More →Water Filtration
Whole-home softeners, reverse osmosis, and filtration systems installed.
Learn More →Pipe Repair
Expert pipe repair and replacement for copper, PVC, and galvanized systems.
Learn More →Commercial Plumbing
Full-service commercial plumbing for restaurants, apartments, HOAs, and businesses across Ontario & the Pomona Valley.
Learn More →Service Coverage
Cities We Serve
We provide fast, local plumbing service throughout the Inland Empire.
Know the Signs
Signs Your Drains Need Professional Cleaning
Not every slow drain is a simple clog you can fix with a plunger. If you notice water draining slowly from your sink or tub, gurgling sounds coming from your pipes, or foul odors rising from your drains, those are signs of buildup deeper in the line. Recurring clogs that keep coming back after you clear them, multiple fixtures backing up at the same time, or water pooling around floor drains all point to a blockage that needs professional attention.
These issues are especially common in Pomona and Fontana where older pipes and hard water accelerate mineral buildup inside drain lines. If you're dealing with hard water throughout your home, a water filtration or softener system can help reduce scale deposits and keep your drains flowing longer between cleanings.
Our Process
Our Professional Drain Cleaning Process
We don't guess — we diagnose. Every drain cleaning job starts with a camera inspection so we can see exactly what's causing the problem, whether it's grease buildup, root intrusion, or a collapsed section of pipe. From there, we choose the right method for the job — standard snaking for simple blockages or hydrojetting for stubborn buildup that coats the inside of your pipes.
Once the blockage is cleared, we don't just pack up and leave. We flush the entire line and run the camera through again to confirm full flow is restored and there are no hidden issues further down the pipe. This thorough approach means fewer callbacks, fewer surprises, and drains that stay clear longer.
Local Water Quality
Why Hard Water Causes More Drain Problems in Ontario CA
If you live in Ontario or the surrounding area, your water supply carries high levels of calcium and magnesium. Over time, these minerals deposit along the inside of your drain pipes, narrowing the opening and catching grease, hair, and debris that would otherwise wash through. This is why homeowners in our area often deal with drain cleaning Ontario CA issues more frequently than those in regions with softer water.
The best long-term solution is pairing regular professional drain cleaning with a water filtration and softener system that reduces mineral content before it ever reaches your pipes. Treating the water at its source means less buildup, fewer emergency calls, and plumbing that lasts years longer.
Service Area
Drain Cleaning Services Throughout Our Service Area
Regal Plumbing & Rooter provides professional drain cleaning across Ontario, Rancho Cucamonga, Fontana, and Pomona. We also serve homeowners and businesses in Upland, Chino, Corona, and West Covina. Whether you need drain cleaning Rancho Cucamonga CA or same-day service anywhere in our coverage area, our technicians are positioned to reach you quickly.
We offer upfront pricing, same-day availability in most areas, and a drain cleaning special to help keep costs manageable. Ready to get your drains flowing again? Get a free quote or call us at (909) 600-4561 to schedule service today.
Common Questions
Frequently Asked Questions
Ask about our current specials when you call.
Ready for Clear Drains?
Call now for professional drain cleaning service across Southern California
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