A home inspection and your homeowners insurance are tightly linked in San Diego: the same things an inspector flags – an obsolete electrical panel, an aging roof, outdated plumbing, or old wiring – are exactly what carriers screen for before they will write a policy. A clean, well-documented inspection can smooth underwriting, while certain findings can raise your premium or make a home hard to insure at all.
Why insurers care about what an inspector finds
Homeowners insurance exists to cover sudden, accidental losses – a fire, a burst pipe, a wind-damaged roof. Carriers price and approve policies based on how likely those losses are, so they pay close attention to the systems most often behind big claims: electrical, roofing, and plumbing. A home inspection is the document that surfaces exactly those conditions in plain language, which is why the two processes overlap so heavily.
It is worth being clear about who does what. A general home inspection is a visual, non-invasive assessment of the home’s condition on the day we walk it. It is not an insurance inspection, and we don’t quote, bind, or guarantee coverage. But the findings in our report give you – and your insurance agent – an early, honest picture of the conditions a carrier will react to, often weeks before you’re due to close.
The findings that move the insurance needle
A handful of conditions come up again and again in San Diego County homes built before the 1990s. These are the ones most likely to affect insurability or premium.
Electrical panels: FPE and Zinsco
Two panel brands have an outsized effect on insurance: Federal Pacific Electric (FPE) with Stab-Lok breakers and Zinsco (Sylvania-Zinsco). Both have well-documented concerns about breakers that may fail to trip under a fault, and Zinsco panels are known for bus-bar corrosion. Many carriers will decline a home outright, require replacement as a condition of binding, or charge more until the panel is upgraded by a licensed electrician. These panels are common in homes built from the 1950s through the 1970s across El Cajon, La Mesa, Lemon Grove, Clairemont, and older parts of Chula Vista. During an inspection we identify the panel brand and flag a known-problem panel as a safety concern – we don’t load-test or condemn it. For the full picture, see our guide to electrical panel problems in older San Diego homes.
Knob-and-tube and aluminum wiring
Original knob-and-tube wiring, found in a small number of San Diego’s oldest homes, is a frequent insurance disqualifier. It has no ground, degrades over decades, and was never designed for modern electrical loads. Many carriers won’t insure an active knob-and-tube circuit, or they require it to be replaced. Older aluminum branch wiring from the mid-1960s to mid-1970s draws similar scrutiny because of connection-overheating concerns. We note visible evidence of either when we see it, and recommend evaluation by a licensed electrician.
Roof age and condition
Roof age is one of the single biggest underwriting factors. Many carriers won’t write a new policy on a roof past a certain age – often around 20 years for asphalt shingle – or they’ll exclude the roof, cap its coverage at actual cash value rather than replacement cost, or require a recent roof certification. San Diego’s mix of tile, asphalt, and foam roofs each age differently, which is why an inspector’s read on remaining life matters so much. Our report documents roof type, visible condition, and apparent age, which helps your agent set expectations early. A dedicated roof inspection goes deeper when a carrier wants more detail.
Plumbing: polybutylene and galvanized
Polybutylene supply piping (gray plastic, widely installed from the late 1970s into the mid-1990s) is a known leak risk and a red flag for some carriers. Aging galvanized steel supply lines corrode from the inside and can also affect water-damage coverage terms. Because water claims are so common and so costly, plumbing material and condition feed directly into underwriting. We document the visible piping material and any active leaks or corrosion we can see; a repipe, when needed, is work for a licensed plumber.
Water heaters and other safety items
Smaller items can still trigger conditions: a water heater without proper seismic strapping (required in California), missing or expired smoke and carbon-monoxide alarms, an unprotected hot tub or pool, or signs of past fire or water damage. None of these are deal-breakers on their own, but a carrier may ask for them to be corrected before binding.
How a 4-point inspection fits in
For older homes, many insurers don’t want a full inspection report – they want a 4-point inspection, a focused look at the four systems they care about most: roof, electrical, plumbing, and HVAC. Insurance companies frequently require one before they’ll issue or renew a policy on a home roughly 25 years or older. The 4-point gives the carrier a snapshot of the age and condition of each system so they can decide whether, and at what price, to insure the home. If you’re buying an older San Diego property, ask your agent up front whether the carrier will need one – it’s far better to learn that early than days before closing. Our 4-point inspection page explains exactly what’s covered.
Insurance inspection vs. home inspection: they’re not the same
It’s easy to conflate these, but they serve different masters. A home inspection works for you, the buyer – it’s a thorough, top-to-bottom evaluation of the property’s condition so you can make a confident decision and negotiate repairs. An insurance inspection (a 4-point or a separate carrier survey) works for the insurer and is narrowly focused on risk. You may end up needing both. The good news is that a strong buyer’s inspection often surfaces the insurability issues before the carrier ever asks, so there are no surprises. For the same reason, a home inspection is also distinct from the FHA or VA appraisal’s Minimum Property Requirements – those are done by an appraiser for the lender, not for you, which is why you should still get your own independent inspection.
What this means when you’re buying in San Diego
The practical takeaway: line up insurance early in escrow, not at the end. The conditions a carrier cares about are the same ones a thorough inspection reveals, so a buyer’s inspection effectively previews your insurability. If we flag an FPE panel, an aging roof, or polybutylene piping, you can take that to your insurance agent and your seller while you still have leverage – to request a repair, negotiate a credit, or budget for the fix before you close. No binder means no closing, so an uninsurable surprise can derail a deal entirely.
For related reading, see our overview of home inspection vs. appraisal in San Diego and our breakdown of San Diego roof types and how they age. If you’re buying an older home and want clarity on what a carrier will react to, reach The Real Estate Inspection Company at (619) 752-4399 or through our contact page. Inspection pricing depends on square footage, age, and access – see our fee schedule for details.
