Bathroom Plumbing

Is your bathroom sink draining slowly, your toilet running constantly, or your shower pressure barely a trickle? These aren’t just annoyances. Left unaddressed, bathroom plumbing problems get worse and more expensive fast. McCullough Heating, Air Conditioning & Plumbing has been solving exactly these problems for Austin homeowners since 1977, and we know the specific challenges that Austin’s hard water and aging housing stock create for bathroom fixtures and pipes.

Bathroom plumbing covers everything from faucets, toilets, and shower valves to supply lines, drain systems, and the venting that keeps it all working properly. When something goes wrong, it affects your daily routine immediately. We diagnose the real cause rather than patching symptoms, so the fix actually holds.

Whether you’re dealing with a leak under the vanity, a toilet that won’t stop running, or a complete bathroom remodel that needs new plumbing rough-in, our licensed plumbers handle it all. Contact McCullough for a service appointment and get your bathroom working the way it should.

Signs You Need Plumbing Service for Your Bathroom

Bathroom plumbing problems rarely announce themselves all at once. More often, small warning signs show up weeks or months before a real failure. Austin homeowners in older neighborhoods like South Austin or Mueller often deal with aging pipes and mineral-clogged fixtures that gradually lose performance until something finally gives out. Knowing what to watch for can save you from a much bigger repair bill.

Here are the most common signs that your bathroom plumbing needs attention from a licensed plumber:

• Slow or Gurgling Drains: A drain that takes minutes to clear after brushing your teeth, or makes a gurgling sound after the water goes down, usually points to a partial blockage or a venting issue deeper in the line.
• Constantly Running Toilet: If your toilet runs between flushes, the flapper, fill valve, or float mechanism is likely worn out. Austin’s hard water accelerates this kind of wear, and a running toilet can waste thousands of gallons a month.
• Low Water Pressure at Fixtures: Showerheads and faucets that once had strong flow but now trickle are often victims of mineral scale buildup from Austin’s hard water. In older homes, corroded supply lines can also restrict flow.
• Visible Leaks or Water Stains: Moisture under the vanity, water stains on the ceiling below a second-floor bathroom, or a toilet that rocks slightly on its base are all signs of active leaks that need prompt attention before they cause structural damage.
• Foul Odors from Drains: Sewer smells coming up through bathroom drains often indicate a dry P-trap, a cracked drain line, or a venting problem that’s allowing sewer gas into the home.

Any one of these symptoms is worth a call. Catching a small leak or a failing valve early almost always costs less than dealing with water damage or a burst pipe later. If you’re unsure whether what you’re seeing is serious, it’s worth having a plumber take a look.

Bathroom Plumbing Services We Handle

Our licensed plumbers cover the full range of bathroom plumbing work, from quick repairs to complete fixture installations. If you’re dealing with a clogged or slow-draining fixture, we can clear the blockage and inspect the drain line to make sure nothing more serious is going on. We also handle toilet repairs and replacements, including fill valve and flapper replacement, wax ring reseating, and full toilet swaps when a unit is beyond repair.

Faucet and showerhead repairs are another common call. Dripping faucets waste water and drive up utility bills, and in Austin’s hard water environment, cartridges and valve seats wear out faster than they would in softer water areas. We stock parts for major brands including Moen, Delta, and Kohler, so most repairs don’t require a return visit.

For homeowners updating a bathroom, we handle new fixture installations including vanity faucets, shower valves, tub spouts, and supply line upgrades. Older homes in Austin often have outdated galvanized or polybutylene supply lines that are due for replacement. Upgrading to modern PEX or copper lines improves flow, reduces leak risk, and is a smart investment before a remodel.

We also address the plumbing behind the walls. Shower pan leaks, improperly vented drain systems, and corroded drain assemblies all require opening up the wall or floor to fix correctly. Our plumbers do this work carefully and explain exactly what they found before proceeding. If your bathroom plumbing issues might be connected to your main line, a sewer line inspection can rule out problems further downstream.