4.9/5 — 2,000+ Five-Star Reviews

Drain Cleaning & Unclogging
Bay Area's #1 Choice

High-torque mechanical cabling designed to restore pipe diameter by clearing stubborn obstructions and accumulated debris. We focus on comprehensive removal of blockages to ensure consistent drainage and prevent the immediate return of backup issues.

⚡ Average response: under 60 min

Need Drain Cleaning & Unclogging?

  • No hidden costs
  • Same-day service
  • Fully licensed and insured
  • 6000+ completed jobs
Google Rating
5 .9★
Five-Star Reviews
1900 +

4.9/5 Rating

2,000+ Reviews

Licensed & Insured

CA Licensed

Same-Day Service

24/7 Emergency

25+ Years

Bay Area Experts

6,000+

Jobs Completed

Simple Process

How It Works

1

Call Us 24/7

Reach us anytime at
(408) 617-8871.

2

Same-Day Dispatch

A licensed technician arrives at your home, often same day.

3

Diagnose & Fix

Upfront pricing before work begins. No hidden fees, ever.

4

100% Satisfaction

We stand behind every job with our satisfaction guarantee.

Professional Drain Cleaning & Unclogging Services

The Importance of Expert Sewer and Drain Cleaning

Sewer drain cleaning is a crucial maintenance task that should only be handled by professional plumbers. Our skilled technicians at United Plumbing & Water Heaters use state-of-the-art sewer drain cleaning machines and techniques to clear blockages and maintain flow, preventing potential backups and damage to your property.

Identifying the Need for Sewer and Drain Cleaning Services

Key indicators that your San Jose property requires sewer and drain cleaning include:

  • Slow draining sinks or bathtubs.
  • Frequent sewage backups.
  • Unpleasant odors emanating from drains.
  • Gurgling sounds from plumbing fixtures.

Experiencing these issues signals the need for immediate sewer drain cleaning services to prevent further complications.

100% Satisfaction Guarantee

If you're not completely satisfied with our work, we'll come back and make it right — free of charge. That's our promise to every customer.

Signs You Need Drain Cleaning & Unclogging

  • Slow drainage and persistent standing water
  • Gurgling sounds in secondary drain lines
  • Foul odors originating from kitchen or floor drains
  • Recurring backups after mechanical plunging
  • Visible sewage or wastewater surfacing
  • Localized fruit fly or drain fly infestations

Call Us Today

Available 24/7 • No trip charge • Free estimates

Why Choose United HVAC

  • 25 years of experience
  • Same-day service
  • 1+ year warranty
  • 6000+ completed jobs
  • 0% interest financing and discounts
  • Fully licensed and insured
  • Well reviewed and highly trusted
  • No hidden costs
  • We work 365 days a year

Got Questions?

Frequently Asked Questions

Why are my drains slowing down even after using store-bought cleaners?

Chemical drain cleaners often sit on top of a clog, generating heat that can damage PVC pipes or soften older metal ones without removing the obstruction. Slow drains are usually caused by a buildup of hair, grease, or mineral scale that narrows the pipe's diameter.

What is the difference between "snaking" and "hydro-jetting"?

A plumbing snake (or auger) uses a metal cable to punch through a solid obstruction like a wad of paper or a hair clog. Hydro-jetting uses high-pressure water (up to 4,000 PSI) to scrub the internal walls of the pipe. While a snake is great for immediate relief, hydro-jetting is the only way to remove grease buildup and tree roots, restoring the pipe to nearly its original "like-new" flow capacity.

Why do my toilets gurgle when the shower is running?

Gurgling is a sign of a "venting" or "main line" issue. When water can’t flow freely down the drain, it pushes air back up through the system, creating bubbles in your toilet. This often indicates a partial blockage in the main sewer line or a bird's nest/debris clogging your roof vent stack. If left unaddressed, this will eventually lead to a full sewage backup.

How long does a professional drain cleaning appointment take?

Most standard secondary drains (sinks, tubs, showers) can be cleared within 1 to 2 hours. Main sewer line cleaning may take 2 to 4 hours, especially if we need to perform a camera inspection to identify root intrusions or structural damage after the line is cleared.

Are "flushable" wipes actually safe for my drains?

Despite the marketing on the package, most "flushable" wipes do not break down like toilet paper. They often snag on small imperfections or tree roots in your pipes, creating a "ragging" effect that catches grease and other debris. This is one of the leading causes of residential sewer backups and expensive main line repairs.

Can tree roots grow into my drain lines?

Yes. Tree roots are naturally drawn to the moisture and nutrients inside your sewer pipes. They can enter through microscopic cracks or loose joints in clay and cast-iron pipes. Once inside, they grow rapidly, creating a dense "root ball" that traps waste and eventually causes a total collapse of the line if not professionally cleared.

Why does my kitchen sink smell like rotten food?

This odor is usually caused by a buildup of "biofilm" or decaying food particles trapped in the P-trap or the garbage disposal. If the smell persists after cleaning the disposal, there may be a buildup of grease further down the line that is catching organic matter. We use enzymatic cleaners that eat away this organic buildup without damaging your plumbing.

What should I do if multiple drains are backed up at once?

If the lowest drains in your house (like a basement shower or floor drain) are overflowing when you run water elsewhere, your main sewer line is clogged. You should stop using all water immediately and call for professional service to prevent sewage from backing up into your living spaces.

How can I prevent clogs from returning?

Regular maintenance is key. Use mesh strainers to catch hair in showers, never pour fats or oils down the kitchen sink, and perform a professional "maintenance flush" every 1–2 years. For homes with significant tree coverage, annual hydro-jetting can keep root growth in check before it becomes a structural problem.

Do you provide 24/7 emergency support for overflows?

Yes. A backed-up drain or an overflowing toilet is a health hazard and a threat to your flooring and subfloor. We provide 24/7 emergency response to clear the blockage, sanitize the affected area, and ensure your drainage system is flowing safely and efficiently.

Related Services

Other Drain & Sewer Services

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Drain Cleaning & Unclogging

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Camera Inspection for Sewer Line

HD sewer camera inspections to locate blockages, cracks, and damage...

Cleanout Installation

Sewer cleanout installation for easy access to your sewer line for maintenance...

Explore Our Other Services

Serving the Bay Area

Drain Cleaning & Unclogging Available In

We proudly serve homeowners across the entire Bay Area

Don’t see your city? Call (408) 617-8871 to check availability.

Ready to Get Started?

Average response time: under 60 minutes