First: One Fixture or Several? (Local vs. Main-Line Clog)
Before you grab a tool, figure out how far down the clog is — it tells you whether this is a quick DIY job or a call to a pro. If only one fixture is slow (just the bathroom sink, or just the tub), the clog is local, sitting in that fixture’s trap or branch drain, and everything below will handle it. If several fixtures back up at once, or a toilet gurgles when the sink drains or the washer empties, the blockage is in the main line further downstream — a bigger job, and a recurring main-line clog is worth a plumber’s camera inspection. This guide focuses on the local clogs you can clear yourself.
In Atlanta and past the DIY point? Here’s what drain cleaning really costs in Atlanta — including what those $99 specials actually cover.
Plumbing Picks is reader-supported. As an Amazon Associate, we earn from qualifying purchases at no extra cost to you.
Quick answer: Most clogged drains can be cleared without harsh chemicals using three things — a plunger, a drain snake, and boiling water or a baking-soda-and-vinegar flush. Chemical drain cleaners are a last resort that can damage your pipes. Here’s how a licensed plumber unclogs any drain in the house.
This is our complete guide to unclogging drains, written by a licensed plumber, with the exact tools for each job.
Step 1: Try Boiling Water or Baking Soda + Vinegar
For a slow (not fully blocked) drain, start gentle. Pour a kettle of near-boiling water down in stages. Still slow? Add half a cup of baking soda, then a cup of vinegar, wait 10 minutes, and flush with hot water. This clears grease and soap buildup without touching a chemical cleaner.
Step 2: Plunge It
For a soft clog, a plunger is the fastest fix. Get a tight seal, leave a little water in the basin to help, and pump firmly for 20–30 seconds. For double sinks, block the other drain first so the pressure goes down the pipe.
Step 3: Snake the Drain
Not sure which snake the job needs? Our Drain Snake Selector matches the auger to your clog and pipe size so you do not buy the wrong one.
If it’s still blocked, the clog is hair or gunk deeper in the line — time to snake it. Feed a hand drain snake in, crank to grab the clog, and pull it out. This is the single most effective DIY clog fix.
Step 4: Clean the Trap and Strainer
Bathroom sinks clog at the pop-up drain assembly and tubs at the stopper — both trap hair. Kitchen clogs often sit at the basket strainer. If the line under the sink is blocked, the P-trap unscrews by hand (bucket underneath) and is the easiest place to clear a stubborn clog.
Step 5: Prevent the Next Clog
Hair catchers in showers, a garbage disposal splash guard that’s kept clean, and never pouring grease down the sink will prevent most future clogs. A monthly hot-water flush keeps lines clear.
When to Call a Plumber
If multiple drains back up at once, or sewage comes up, that’s a main-line clog — call a pro. Same if you’ve snaked it and it’s still blocked.
Related Drain Guides
- Best Garbage Disposal Splash Guards & Flanges in 2026
- Best Sink Pop-Up Drain Assemblies in 2026 (Fix a Stuck Bathroom Drain)
- Best Kitchen Sink Basket Strainers in 2026 (Stop Clogs & Leaks)
- Best Bathtub Drain Stoppers in 2026 (Fix a Drain That Won’t Hold Water)
- Best Drain Snakes for Homeowners in 2026 (Clear Clogs Without a Plumber)
- Best Shower Drain Hair Catchers in 2026 (Stop Clogs Before They Start)
FAQ
What’s the best way to unclog a drain naturally?
Boiling water followed by a baking-soda-and-vinegar flush clears most grease and soap clogs. For hair clogs, a drain snake works better than any liquid.
Does baking soda and vinegar really work on clogs?
For light, grease/soap buildup, yes. For a solid hair clog it won’t be enough — you’ll need a plunger or snake.
How do I unclog a drain without any tools?
Try boiling water in stages, then a baking-soda-and-vinegar flush. If that fails, a cheap plunger or snake is worth buying before resorting to chemicals.
Related: Garbage disposal not working?
Related: garbage disposal humming but not spinning.
Not a full clog yet? If the sink is just draining slow but not clogged, clean the stopper and trap before it stops completely.
For a tub specifically, the clog is usually hair at the stopper, see how to clear a bathtub that will not drain.
Want to know what a plumber would charge before you grab the snake? Our 2026 Plumbing Repair Cost Index lists drain-clearing prices low to high.
More Plumbing Repair Guides
- Fixing a Running Toilet
- Fixing a Dripping Faucet
- Emergency Pipe Repair
- Essential Plumbing Tools
- Fixing Low Water Pressure
Recommended Tools & Parts
Everything you need, on Amazon: drain snake · plunger · hair catcher.
More Top Picks & Guides
Related: Why Does My Toilet Keep Clogging? (causes & fixes)
Related: standing water in the dishwasher? See why your dishwasher won’t drain and how to fix it.
When a hand snake isn’t enough, it’s time for a machine — see the best drain cleaning machine guide.
Fix the 12 Most Common Plumbing Problems Yourself — Free Plumber’s Handbook — including the clog fixes that save a $200 drain call
Step-by-step fixes for the 12 most common problems — and exactly when to call a pro. Free and instant, from a licensed plumber. Save hundreds on calls you didn’t need.