Heise's Plumbing recently completed a professional sewer repair service in the Cow Hollow neighborhood of San Francisco, California.
The Problem
A local building manager noticed waste water seeping in the garbage room next to the garage and called us for immediate help.
Our Inspection
Our plumber inspected the main line and diagnosed a horizontal four-inch cast iron drain pipe with a five-foot hairline crack.
Our Solution
We carefully cut out the damaged section and replaced it with brand-new ABS piping in compliance with modern plumbing codes and building regulations.
Final Results
Once we installed the new segment using heavy-duty shielded couplings, we tested the entire system for leaks and verified that everything is operating safely and reliably.
Signs of Hidden Plumbing Leaks
Hidden water leaks can cause serious structural damage before they are discovered:
- Utility Bill Spikes: Sudden, unexplained increases in your monthly water bills.
- Musty Odors: Persistent musty smells in basements, bathrooms, or near cabinets.
- Wall or Floor Discoloration: Damp, bubbling paint, warped baseboards, or soft spots on flooring.
- Low Water Pressure: Sudden drop in pressure throughout the home or at specific fixtures.
Why Prompt Professional Repair is Crucial
Unresolved water leaks lead to structural wood rot, paint failure, ruined subfloors, and toxic black mold growth. Seeking professional diagnosis and repair prevents minor issues from turning into catastrophic home damage.
Plumbing Considerations in Cow Hollow
Cow Hollow features mature tree landscaping and older residential construction, which can increase the risk of tree root intrusions in underground sewer cleanouts and lateral pipes.


