4-Point Inspection in Tierrasanta, San Diego, CA

When a carrier asks for a 4-point before it will bind or renew on a Tierrasanta home, the trigger is the date the "Island in the Hills" was built, not anything wrong with your house. This whole community went in across one stretch — the planned subdivisions that filled the mesas and finger canyons east of I-15 through the 1970s and into the '80s, the curving streets off Santo Road and Tierrasanta Boulevard that hug the canyon rims. Those homes are now four decades past their original systems, and California insurers — pulling back hard as the state's wildfire market reprices brush-zone risk — no longer take an aging roof, a build-era panel, or first-generation supply pipe on trust. They want it on paper first.

I'm Joseph Romeo, and a 4-point is a deliberately narrow report: roof, electrical, plumbing, and HVAC, and nothing past those four. Its job is to answer an underwriter's question, not to grade the whole property — so it captures each system's age, what it's made of, and the condition I actually observe, then it stops. Below I walk through what the report reaches on a Tierrasanta slab home, why this canyon-laced planned community keeps drawing the request, what these 70s-80s homes keep turning up, how the visit and report work, and where the scope ends. For the whole-house view, start at the Tierrasanta home inspection hub.

Call (619) 752-4399 Schedule an Inspection

Which four systems does a Tierrasanta 4-point document?

It documents the roof, electrical, plumbing, and HVAC, logging each system's age, material, and condition. Four systems, recorded to the depth an underwriter actually weighs — that's the entire assignment, and it's where I stay. A carrier isn't paying for a buyer's walkthrough; it wants a clean factual record on the systems that drive the claims it covers. On a Tierrasanta property I log the age, the material, and what I see on each point, with a photo standing behind every line:

• Roof — covering type (the composition shingle and concrete tile that blanket these Island-in-the-Hills tracts), rough age, layer count, and the years of service life left, plus slipped or cracked tile, granule loss, and dried flashing sealant at vents and chimneys. Under decades of hot inland-mesa sun, remaining roof life is frequently the single line that decides the policy.
• Electrical — service panel make and amperage, breakers versus any surviving fuse setup, the branch wiring I can see, and grounding. This is where the build-era panels and wiring that get a Tierrasanta policy bounced get named outright.
• Plumbing — supply-line material and the era it belongs to, drain and waste material, and the water heater's age and condition. With almost everything here poured on slab-on-grade, the supply runs are buried in the concrete, so I read the plumbing point from the water heater, the visible connections, and any sign of a slab leak rather than from pipe under the floor.
• HVAC — the furnace or heat pump, any retrofit AC, its rough age, and whether it runs when I cycle it. That last check earns its keep in Tierrasanta, where afternoons on an open inland mesa push a condenser far harder than anything down by the coast.

What comes back is a carrier-ready document listing age, material, and condition across all four, every line photographed. What it isn't is a full inspection — foundation, canyon-rim grading, attic, windows, and grounds belong to a separate, wider visit.

Why do Tierrasanta homes keep drawing a 4-point request?

One concentrated 70s-80s building era reaching middle age in a brush-zone inland setting is what puts the letter in your mailbox. Underwriters aren't singling out Tierrasanta at random. It's the pairing of one concentrated building era reaching middle age with a brush-zone inland setting — conditions particular to this corner of the city that put the letter in your mailbox:

• One planned wave of 70s-80s housing. Tierrasanta was platted and built out as a self-contained community in a single push, so block after block crossed the 25-to-40-plus-year line on the same clock. The panels, supply pipe, and original roofs from that era are exactly what the 4-point exists to verify, and out here they're aging in lockstep.
• Slab-on-grade on graded canyon pads. With virtually no crawlspaces in Tierrasanta, the supply lines sit in the slab. That shapes the plumbing point — condition gets read from the water heater, the visible connections, and slab-leak signs — and a graded pad on expansive soil at a canyon rim is exactly the setting where an old line under the floor lets go.
• Wildland-urban interface exposure. A large share of Tierrasanta lots back straight onto a finger canyon or the Mission Trails edge, in or beside elevated fire-hazard zones. As carriers retreat from California brush country or push owners toward the FAIR Plan, the ones still writing here lean on the 4-point to screen a spent roof and an obsolete panel before they commit.
• Inland heat that ages roofs and AC ahead of the calendar. Sitting well off the coast and clear of much of the marine layer, Tierrasanta runs warm. Composition shingle sheds granules early and condensers wear faster than the build year suggests, so roof remaining life and HVAC condition often read worse than the deed date — and carriers know to look there.
• Original mechanicals reaching the end together. A fair number of these homes still run build-era water heaters, furnaces, and service panels — first-generation equipment now well past its service window, which is precisely the wear a 4-point is built to surface.

What do these Island-in-the-Hills homes keep turning up?

Rejected panels, aluminum branch wiring, partial repipes, corroding cast-iron drains, and sun-spent roofs lead the list. Because so much of Tierrasanta came out of the same planned build-out, the findings rhyme from one canyon-rim street to the next. Knowing which ones stall an underwriter lets you correct or disclose ahead of time instead of watching a policy bounce at bind:

• Panels carriers reject — the problem-brand services of that period (Zinsco and Sylvania, with the odd Federal Pacific Stab-Lok in the earliest Tierrasanta builds) surface regularly, and many insurers decline flat until one is swapped out.
• Aluminum branch wiring — the mid-'70s aluminum branch runs common to tract homes of this vintage, treated as a fire flag by underwriters wherever the terminations haven't been corrected.
• Partial repipes over buried original supply — copper or PEX on the visible runs with original material still under the slab quietly limiting pressure, plus the occasional polybutylene run waiting to split at a fitting — either of which a carrier may insist be addressed.
• Cast-iron drains corroding — original cast-iron waste lines eating themselves from within, routine in slab homes this age and harder to read where they run beneath the concrete.
• Sun-spent roofs — comp shingle or older tile underlayment baked down to a few remaining years by inland sun, often the one item that forces a re-roof before a policy will bind.
• Original water heaters and HVAC — heaters past their service window or missing the two seismic straps California calls for, and furnaces and condensers deep into a second decade of hot mesa summers, flagged on age even when they still fire.

None of this is an automatic decline. I separate a system that's merely old but serviceable from one a carrier will refuse, and I photograph each so the report rests on what's there rather than on opinion.

How does the visit run and when do you get the report?

I document the four systems on a shorter visit, then deliver a carrier-ready report same day or next. It opens with a call to (619) 752-4399 or an email carrying the Tierrasanta address, the home's age, and — if you have it — your carrier's own 4-point form. Some insurers require their exact template filled in, and knowing that before I head out spares a second trip. Flag anything that blocks access too — a community gate, an HOA-managed area, a locked panel — so nothing has to be deferred on the day.

On site I take the four systems in order: up on the roof for covering, age, and wear; into the panel to read make, amperage, and wiring; through the visible plumbing and the water heater, watching for the slab-leak signs these poured-pad homes can show; and across the HVAC to confirm type, rough age, and that it cycles in the inland heat. Every finding gets a photo. Because the scope is four systems rather than the whole house, it's a quicker visit than a full inspection.

You receive a 4-point report in HomeGauge — or on the carrier's form when they require it — documenting age, material, and condition on each system with the images a Tierrasanta underwriter expects. In most cases it reaches your inbox the same day or the next, so it never holds up a bind or a renewal deadline. I report observed condition only; I don't bid or carry out repairs, which keeps the findings independent.

Who reads each finding, and why does that judgment matter?

A CPI who is also a licensed general contractor reads each system, telling a policy-killing panel from a serviceable one. A 4-point is worth only the judgment behind each call — telling a policy-killing panel from a serviceable one, or a mesa roof with two summers left from one with eight, is experience, not a checkbox. I'm an InterNACHI Certified Professional Inspector (CPI) and I hold a California CSLB General Contractor license (#1113143). That builder's background is what lets me tell you whether a flagged item is a quick correction or a full-system replacement — and roughly what the work involves — before you're on the phone with your agent.

• 20+ years and 10,000+ inspections across San Diego County, a great many on inland-mesa and planned-community housing of exactly Tierrasanta's vintage
• 4.9 stars across 106 Google reviews from homeowners, buyers, and agents
• Independent and conflict-free — I document the four systems and report what's there; I don't sell the panel swap, the repipe, or the roof, so nothing in the report nudges you toward work I'd profit from

When a system needs attention before a carrier will bind, I coordinate or refer the right licensed trade to act on the exact findings rather than pretend the 4-point covers the fix. Reach me directly at joe@sandiegohomeinspection.com or the number above.

Which other inspections suit an older Tierrasanta home?

A full home inspection, sewer scope, slab evaluation, roof-focused look, and thermal imaging all fit the same trip. The 4-point answers the carrier's four questions and nothing wider. If you're buying, or just want a fuller read on an older Tierrasanta home, a few companion inspections drop neatly into the same trip:

• Full home inspection — the whole-house evaluation the 4-point deliberately isn't, including the canyon-rim grading and slab the four points skip; start at the Tierrasanta hub if you're buying, not only insuring
• Sewer scope — a camera down the buried lateral the plumbing point can't reach, where decades-old cast iron or clay under these canyon-edge lots cracks and draws roots from the mature landscaping
• Foundation and slab evaluation — closer scrutiny and elevation readings when a graded canyon-rim pad shows cracking you want explained beyond the four points
• Roof-focused inspection — a closer read on remaining years when the 4-point shows a covering cooked near the end by inland sun
• Thermal / infrared imaging — surfaces hidden moisture and electrical hot spots, a real payoff on slab homes where a plumbing leak hides under the floor

Not sure what your address actually needs? Send it over with the home's age and what your carrier is asking for, and I'll tell you which of these genuinely apply — see all inspection services we offer or get a quote through contact. For the panel swap, repipe, or roof work a carrier wants, I coordinate the right licensed specialist rather than reach past our scope.

Tierrasanta 4-Point Inspection FAQs

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