What Does a Home Inspection Cover, and What Should Buyers Watch For in Older LA County Homes?

Updated September 2026

A standard home inspection in LA County covers the roof, foundation, electrical panel, plumbing, and HVAC, and typically runs $400 to $950 for an average-sized home, with larger properties running $1,500 or more. In older homes across LA County, buyers should watch closely for galvanized or clay plumbing prone to corrosion and root damage, outdated electrical panels and wiring that create fire risk, foundation cracks and unbraced cripple walls that raise seismic concerns, and signs of unpermitted additions that can surface once an inspector starts looking closely.

What Does a Standard Home Inspection Cover?

A general home inspection is a visual, non-invasive review of the property's major systems and typically takes 2 to 5 hours depending on the home's size and age. Inspectors evaluate the roof, exterior siding and drainage, foundation, electrical panel and visible wiring, plumbing fixtures and water lines, and heating and cooling systems, along with interior elements like walls, windows, and doors. For a typical 2,000-square-foot single-family home in LA County, a general inspection usually costs somewhere between $400 and $950, while larger or more complex properties can run $1,500 or more. This general inspection is the foundation buyers build on, but it isn't the full picture, especially for a home with some age on it.

What Should Buyers Watch For in Older LA County Homes Specifically?

Older homes carry a specific set of risks that a general inspection may only partially capture. Plumbing is often the biggest concern: many homes from the 1940s and earlier still have galvanized steel or original clay sewer lines, and galvanized pipes showing silver-colored scaling are a sign of internal corrosion that can reduce water pressure and eventually fail, while clay sewer lines are vulnerable to tree root intrusion that can lead to costly backups. Electrical systems are another common issue, since older properties can still have knob-and-tube wiring, ungrounded two-prong outlets, or Federal Pacific Electric panels with Stab-Lok breakers, which are considered a red flag because those breakers can fail to trip during an overload. On the structural side, inspectors look for vertical foundation cracks wider than about a quarter inch and check whether cripple walls, the short walls between the foundation and the first floor, are properly braced with plywood for seismic safety, since unbraced cripple walls are a common weak point in older LA County homes during an earthquake.

What Inspections Aren't Included, and Should You Add Them?

A general inspection doesn't automatically include everything an older home might need. A sewer lateral inspection, usually done with a camera and costing around $250 to $300, can catch root intrusion or pipe deterioration before it turns into a $15,000-plus repair, and it's one of the highest-value add-ons for a home with original clay or cast-iron sewer lines. A wood-destroying pest inspection, sometimes called a WDO or structural pest control report, is a separate specialized inspection that distinguishes active termite or dry rot damage from conditions that could lead to future infestation, and lenders financing certain loan types often require it even when it isn't legally mandatory. Homes built before 1978 also fall under federal lead-based paint disclosure rules: sellers must disclose known lead hazards, provide the EPA pamphlet "Protect Your Family From Lead In Your Home," and give buyers a 10-day window to arrange a professional lead paint inspection or risk assessment unless that period is waived or adjusted by mutual agreement. Asbestos, often found in older insulation, flooring, and popcorn ceilings, generally requires its own separate testing as well, since it typically isn't part of a standard inspector's scope.

What Happens If the Inspection Finds Unpermitted Work or Serious Problems?

It's common for an inspector to notice something that doesn't match city permit records, such as an added room, a converted garage, or electrical and plumbing work that looks newer than the rest of the house, and that discovery often opens the door to a broader conversation about permit history before the deal moves forward. In California, buyers typically have a 17-day contingency period as the default under the standard purchase contract, though that period is sometimes shortened to 10 to 12 days in competitive situations, to complete inspections and decide how to respond. If the inspection turns up material issues, whether that's unpermitted construction, a failing sewer line, or outdated electrical, buyers can negotiate for repairs, ask for a price reduction or credit, or cancel the contract and recover their earnest money, as long as they act while the contingency is still in place; once it's removed in writing, that protection goes away.

Frequently Asked Questions About Home Inspections for Older LA County Homes

Q: How much does a home inspection cost in LA County? A general inspection typically runs $400 to $950 for an average single-family home, with larger or older properties sometimes costing $1,500 or more, and specialized add-ons like sewer lateral or pest inspections are priced separately.

Q: Do I need a separate sewer inspection for an older home? It's strongly worth adding one if the home has original clay or cast-iron sewer lines, since a camera inspection costing around $250 to $300 can catch root intrusion or deterioration before it becomes a much more expensive repair.

Q: Are lead paint and asbestos automatically checked during a home inspection? No, both typically require separate specialized testing; for homes built before 1978, sellers must follow federal lead-based paint disclosure rules and give buyers a window to arrange their own lead inspection if they choose to.

Q: What happens if the inspection reveals unpermitted work? It usually leads to a closer look at permit history and a conversation about how to handle the issue, whether that's negotiating repairs or credits, adjusting the price, or walking away while the inspection contingency is still active.

Sources: current 2026 guidance on home inspection scope, costs, and timelines for Los Angeles County and California, including older-home plumbing and electrical issues, sewer lateral and wood-destroying pest inspections, and federal lead-based paint disclosure requirements for pre-1978 housing under the EPA's Real Estate Disclosure Rule. This is general information, not a substitute for a licensed inspector's report or legal advice — consult a qualified home inspector and your real estate agent for guidance on your specific property. Andrea Pazmino-Pace, DRE #02013784.