Sherman Oaks homes tell their stories through their plumbing. Mid-century ranch homes near Ventura Boulevard often show wear in copper lines. New hillside builds push high water demand with smart fixtures and tankless systems. During buyer and seller inspections, certain problems surface again and again. Knowing the patterns helps homeowners plan repairs, negotiate with confidence, and protect property value.
ServiStar Plumbing and HVAC brings local field experience from Chandler Estates to Sherman Oaks Hills. The team sees thousands of inspections across 91403, 91411, 91423, and 91495, and understands how Valley water, soil movement, and tree roots affect pipes. Here is what inspectors flag most, why it happens, and how a licensed plumber in Sherman Oaks, CA solves it.
Aging supply lines: copper fatigue, mixed materials, and pressure problems
Many Sherman Oaks homes from the 1950s to 1970s still rely on original copper. Copper lasts decades, yet pinhole leaks appear where water chemistry and velocity wear the tubing. Remodels sometimes mix copper, galvanized steel risers, and PEX tubing. That patchwork can cause corrosion at dissimilar metal joints and inconsistent ServiStar Plumbing Company in Sherman Oaks, CA pressure.
Inspectors look for corrosion at angle stops, green staining on copper, and signs of prior leak patches. They test static pressure at hose bibs. If pressure exceeds 80 psi, they cite the need for a working pressure regulator. High pressure cracks fixtures, hoses, and water heaters.

ServiStar recommends a pressure test and a camera-friendly meter reading. If pressure sits high or swings, a new pressure regulator at the main is simple insurance. For supply lines, a targeted repair may suffice, but widespread corrosion points to partial or whole-home repiping in PEX or Type L copper. The team explains trade-offs: PEX resists scale and is flexible for tight crawl spaces; copper handles UV and exterior runs better. For many Valley homes, PEX inside with copper stubs at exposed points gives the best balance of durability and budget.
Slab leaks under foundations
A sudden drop in water pressure, a warm floor spot, or damp carpet can suggest a slab leak. Inspectors often catch it with meter tests and thermal readings. Clay soils in the Valley expand and contract, stressing copper under the slab. Small pinholes release water quietly for months before damage shows.
ServiStar uses non-invasive leak detection to locate the break with acoustic sensors and thermal imaging. The crew then judges the best fix. Spot repair through the slab works if access is clean and the line is sound elsewhere. For homes with repeat leaks, overhead reroute in PEX bypasses the slab entirely. That reduces future risk and avoids tearing up finished floors. Homeowners appreciate options with clean numbers and timelines so they can close escrow without drama.
Failing water heaters and improper installations
Home inspections often flag water heaters for age, venting, strapping, or leaks. Gas tanks over 10 to 12 years often show rust at the base or sediment clicking sounds. Earthquake straps, drain pans, and T&P discharge lines must meet code. Tankless units need proper gas sizing, condensate drainage, and annual descaling.
ServiStar services Rheem, Bradford White, and A.O. Smith tanks, and installs Navien tankless systems for high-demand households. For Sherman Oaks families with teenagers and back-to-back showers, a correctly sized Navien tankless keeps hot water steady along with lower standby losses. The team also corrects venting and gas line undersizing seen in DIY installs. If a unit just needs a refresh, a flush, new anode rod, and a pressure check can buy years local Sherman Oaks plumbing of life.
Clogged drains, grease buildup, and root intrusion
Inspections often include running water through fixtures and checking cleanouts. Slow tubs and gurgling toilets hint at partial blockages. In older 91423 streets, clay sewer laterals crack at joints. Tree roots from mature ficus or camphor trees find their way in. Grease from kitchens near Fashion Square builds a thick ring that catches debris.
A camera inspection gives visual proof for buyers and sellers. ServiStar starts with rooter service to restore flow. If the line shows heavy scale or roots, hydro jetting clears the walls of the pipe. For broken segments or bellies, trenchless sewer repair can replace the failing section without tearing up driveways. It pays to catch this before escrow, as backups are a deal breaker.
Toilet and fixture leaks that waste water
Running toilets, dripping Moen or Delta faucets, and sweating supply lines show up in many inspection reports. A single running toilet can waste hundreds of gallons a day. Some issues are as simple as a worn flapper or fill valve. Others involve corroded shut-off valves that will not close during emergency work.
ServiStar carries factory-spec parts for Kohler, Toto, Grohe, and Hansgrohe to keep performance and finish intact. Replacing angle stops and supply lines during minor fixture service prevents future surprises. Small fixes add up to real water savings, especially with rising LADWP rates.
Garbage disposal problems and dishwasher drain errors
Inspectors often test disposals and dishwashers. Common notes include noisy or jammed disposals, missing knock-out plugs when a new dishwasher was added, and improper high loops that can allow backflow into the dishwasher. Under-sink traps may be misaligned or made of thin tubular plastic that leaks under vibration.
A plumber in Sherman Oaks, CA can reset or replace a disposal, add the high loop, and rework the P-trap with solvent-welded ABS for a tight, long-lasting fit. Small corrections make a big difference in day-to-day use and buyer confidence.
Pressure regulators and main shut-off valves
Two line items appear over and over: stiff or inoperable main shut-off valves and missing or failing pressure regulators. If an inspector cannot confirm a working shut-off, they mark it. In an emergency, minutes matter. High incoming pressure also stresses every downstream component.
ServiStar replaces old gate valves with quarter-turn ball valves for quick, reliable operation. A new regulator set between 55 and 70 psi protects appliances and fixtures. The crew labels valves for fast access, which helps during future service calls.
Venting, traps, and improper slope
Vent stacks block-roofed by leaves, missing traps under sinks, and long horizontal runs without proper slope can all trigger notes on the report. Sewer gas odors or slow drainage often trace back to these basic design errors. Remodels that moved a kitchen island or added a bath without proper venting show up years later as chronic gurgles.
The fix ranges from clearing a roof vent to adding an AAV where code allows, or re-piping a section for correct fall. ServiStar documents the change with before-and-after photos so buyers can see the correction clearly.
Hidden leaks in walls and crawl spaces
Damp baseboards, musty smells, and discolored drywall suggest a slow leak. Angle stops, icemaker lines, and upstairs bathroom traps are common culprits. Inspectors use moisture meters, yet the source can be elusive.
ServiStar uses thermal cameras and pressure isolation to pinpoint the leak. The team repairs the failed fitting, tests, and dries the cavity with air movement. If mold is present, they coordinate with remediation partners. Quick action limits drywall repairs and keeps the job contained.
Sewer camera inspections: evidence that shortens negotiations
For homes near Sherman Oaks Galleria and along Ventura Boulevard, a sewer camera inspection often changes the course of a deal. Clear video showing a clean line closes questions fast. Footage of offsets, roots, or channeling sets a scope for fair credits.
ServiStar provides digital files with footage and a written summary. If repair is needed, trenchless options reduce landscape impact. Many sellers opt to fix before listing to keep momentum and protect sale price.
What buyers and sellers can do before the inspection
A short pre-list punch list reduces surprises and keeps reports clean.
- Test and label the main shut-off valve; confirm the pressure regulator keeps pressure under 80 psi. Flush the water heater, check earthquake straps, and verify the T&P discharge line terminates correctly.
Why local experience matters in Sherman Oaks
Homes near Van Nuys Sherman Oaks Park face tree root pressure on aging clay lines. Hillside properties need correct pressure regulation due to elevation changes. Hidden Woods and Chandler Estates feature mid-century copper that may have soft spots. Fashion Square remodels often mix materials. These local patterns help an experienced tech diagnose faster and fix with less disruption.
ServiStar provides 24/7 emergency plumbing dispatch in 91423 and 91403 with fast access along Ventura Boulevard. The team works daily in Magnolia Woods and the hills south of the Boulevard, so arrival times and parts selection reflect real neighborhood needs. Stocked trucks carry common Bradford White and Rheem components, Toto and Grohe parts, and code-ready pressure regulators, which allows same-day solutions for most findings.
Advanced solutions that protect your investment
Non-invasive leak detection prevents needless drywall cuts. Hydro jetting restores full pipe diameter in grease-heavy lines. For repeated slab leaks, overhead PEX reroutes remove risk from the foundation. For water heating, a Navien tankless installation with proper gas sizing and a scale filter fits high-demand Valley life. Adding a whole-home pressure regulator and replacing failing shut-offs avoids future emergencies.
Straight answers during escrow
Inspection timelines move fast. ServiStar keeps quotes concise and code-cited so agents and clients can act. As a fully licensed and bonded C-36 plumbing contractor, the company documents repairs with permits where required and photo proof for files. Free estimates are available for drain cleaning, camera inspections, water heater replacements, and trenchless evaluations. For true emergencies, the on-call team responds day and night.
Frequently asked questions
Do you service homes near the Sherman Oaks Galleria and Ventura Boulevard? Yes. Located minutes away, ServiStar offers rapid response with trucks stocked for common fixes found in local inspections.
Can you address tree root issues in older sewer lines? Yes. Rooter service and hydro jetting clear intrusions. If the clay line is cracked, trenchless sewer repair or full replacement solves the root entry points.
What is the best water heater for a large family in the Valley? A correctly sized Navien tankless delivers continuous hot water. For homes with high simultaneous demand, a hybrid or larger Rheem or Bradford White tank can also work. Site evaluation and gas sizing determine the best fit.
How do I know if I have a slab leak? Watch for warm floor spots, unexplained water use, or low pressure. ServiStar performs acoustic and thermal tests to confirm and then advises on spot repair or reroute.
Are you licensed and available for emergencies? Yes. ServiStar is a licensed and bonded C-36 plumbing contractor offering 24/7 emergency service across Sherman Oaks and nearby Encino, Studio City, Van Nuys, Valley Village, Bel Air, and Beverly Glen.
Ready to fix what the inspection flagged or want to pre-inspect before listing? Contact ServiStar Plumbing and HVAC for a free estimate. A local plumber in Sherman Oaks, CA will arrive with the right tools, factory-spec parts, and clear options to protect your home and your deal.
ServiStar Plumbing and HVAC
13351 Riverside Dr Suite #414
Sherman Oaks, CA 91423