Top Plumbing Problems in San Antonio Homes (and How to Fix Them)

If you’re a homeowner in San Antonio, chances are you’ve run into your fair share of plumbing issues. From slab leaks to water heater failures, plumbing problems in San Antonio homes are a common headache. In this post, we’ll break down the top issues, average repair costs, and when to call in a licensed plumber.

1. Slab Leaks

San Antonio’s clay soil and shifting foundations often lead to slab leaks. These leaks can go undetected for weeks, causing high water bills and damage. Fixing a slab leak usually requires a professional plumber, with costs ranging from $1,000–$3,000.

2. Clogged Drains

Grease, hair, and food particles make clogged drains one of the most common plumbing problems in San Antonio. While DIY solutions like plungers and drain cleaners can help temporarily, professional hydro-jetting provides a long-term solution.

3. Hard Water & Scale Build-Up

Our region has notoriously hard water, leading to mineral deposits in pipes, faucets, and water heaters. Installing a water softener system is the most effective fix, protecting your plumbing and appliances long-term.

4. Water Heater Repairs

Many San Antonio homes rely on traditional tank water heaters. These often require repairs for leaks, pilot light issues, or sediment buildup. Repairs average $150–$500, while replacements can run $1,200 or more.

5. Sewer Line Problems

Tree roots and old pipes can cause major sewer line backups. Signs include gurgling toilets and foul odors. Professional sewer repair or trenchless replacement may be needed.

Find Help from Licensed Contractors

Plumbing issues can’t wait. When you need licensed plumbing contractors in San Antonio, visit our San Antonio Plumbing Contractors Directory. We connect you directly with vetted, insured local pros — no middlemen or overpriced lead services.