Why Is My Drain Slow? 5 Common Causes and When to Call a Plumber

A slow drain rarely fixes itself. It starts as a tub that takes longer to empty or a sink that pools after dishes, and it usually means something is narrowing the pipe. Catching it early keeps a small annoyance from becoming a full backup. These are the five causes we see most often in homes across Chula Vista and San Diego County.

Bathroom drains collect hair with every shower, and soap scum and body oils grab onto it until the pipe narrows to a trickle. It is the most common slow drain we clear, and it is usually a straightforward professional cleaning rather than a bigger repair.

Kitchen sinks slow down when food scraps and grease head down the drain. Grease looks like a liquid when it is hot, but it cools and hardens inside the pipe and catches everything that follows it. Scraping plates into the trash helps, but once the pipe is coated, a professional cleaning is the reliable fix.

Tree roots are drawn to the water inside sewer lines, and they slip in through small cracks and joints. As they grow, they narrow the line until drains gurgle or back up. Root intrusion usually needs more than a cleaning: we cut the roots, camera-inspect the line, and repair or replace the pipe if it is damaged, with the price agreed up front.

San Diego County water is hard, and over the years dissolved minerals build up inside older pipes, especially galvanized steel. The buildup narrows the pipe from the inside, so water moves slower even when nothing is clogged. We see this most in older homes that still have their original plumbing.

If several drains are slow at once, or the toilet gurgles when the sink runs, the problem is probably bigger than one fixture. A blocked vent or a deeper sewer line issue affects the whole house, and that is a job for a camera inspection and an honest diagnosis.

Here is our promise: we agree the price up front, and we stay until the job is done right. For in-home drains with proper clean-out access, our special is a flat $40 per drain, camera inspection included. If your drain is slow and you are in Chula Vista or anywhere in San Diego County, call 619-600-3776 or request a quote, and the family that does the work will take it from there.