Why It Matters
Before you can insure an older property, your insurance carrier may demand proof that its four core systems are in acceptable condition. No insurance means no financing — and no financing means no deal. The four-point inspection is the document that answers that question. It costs $100–$200, takes an hour or two, and can uncover issues that blow up a closing if you find them at the wrong moment. The smart move is to order it before you make your offer, not after you're under contract. If the roof is 18 years old, the electrical is a Federal Pacific panel, and the plumbing is polybutylene, you're looking at $15,000–$45,000 in system replacements before an insurer will touch the property. That's a material number that belongs in your purchase price, not your surprise column.
At a Glance
- What it is: A targeted insurance inspection covering HVAC, electrical, plumbing, and roof condition
- Who requires it: Most homeowner's insurance carriers for properties 25+ years old, especially in Florida
- Cost: $100–$200 (typically 1–2 hours on-site)
- What it documents: Age, condition, remaining useful life, and evidence of updates for each of the four systems
- Investor risk: A failed four-point means no insurance, which means no mortgage financing — deal-killer if discovered at closing
- Pre-offer strategy: Order before going under contract to factor system replacement costs ($5K–$15K per system) into your offer
How It Works
The inspection scope is narrow by design. A four-point inspection is not a full home inspection. It does not evaluate foundation, drainage, pest activity, windows, or dozens of other systems a general inspector would review. It has one job: give an insurance underwriter enough information to decide whether the four core systems present an unacceptable risk. The inspector documents the age and condition of each system, notes any visible defects, estimates remaining useful life, and records whether updates or repairs have been made.
HVAC. The inspector checks the age and condition of heating and cooling equipment, looks for obvious signs of rust, leaks, or deferred maintenance, and notes whether the system has been serviced recently. An original HVAC unit on a 30-year-old property is a common flag — not necessarily an automatic decline, but it puts the carrier on notice that a major replacement is approaching.
Electrical. This is where deals die fastest. Federal Pacific Stab-Lok panels and Zinsco panels are notorious for failing breakers and fire risk — many carriers will not insure a property with these panels period. Aluminum wiring in branch circuits (common in homes built 1965–1973) is another red flag. The inspector notes the panel brand, age, amperage, and any visible hazards like double-tapped breakers, exposed wiring, or scorching.
Plumbing. Polybutylene pipe — gray plastic piping used in millions of homes from 1978 to 1995 — is an instant fail in Florida and a major flag in most states. It degrades over time and has a well-documented history of catastrophic failure. The inspector identifies supply line material (copper, CPVC, PEX, polybutylene, galvanized), notes the age of the water heater, and flags any active leaks or visible deterioration.
Roof. The roof section documents material type, age, and condition. In Florida especially, carriers have strict age limits: a standard shingle roof over 15 years old is often uninsurable without a current wind mitigation report or a roof replacement. Metal roofs get more latitude — up to 40+ years depending on condition. The inspector notes any missing shingles, soft spots, improper patching, or signs of active water intrusion.
The report lands in your insurer's hands. Once the inspector delivers the written report with photos, your insurance agent submits it to the carrier as part of the policy application. The carrier approves, requires remediation before binding, or declines. If they decline, you either remediate the failed systems, find a specialty insurer (at significantly higher cost), or walk from the deal.
Real-World Example
Jessica is buying a 1987 single-family in Tampa for $220,000 with a conventional loan. Her lender requires homeowner's insurance before closing. The listing says the roof was replaced in 2009 — 16 years ago — and the property has the original electrical panel. Jessica orders a four-point before making her offer.
The inspector's findings: HVAC replaced in 2018 — good. Electrical is a Federal Pacific panel, 1987 vintage — flagged, likely uninsurable as-is. Plumbing is CPVC throughout — acceptable. Roof is a 2009 shingle installation — 16 years old, at the edge of most carriers' limits, with minor granule loss on the south-facing slope.
Jessica's agent calls three carriers. Two decline outright because of the Federal Pacific panel. The third will bind but requires panel replacement within 30 days of closing and charges a $400 annual surcharge until a new inspection confirms the upgrade. Panel replacement quote: $3,500.
Jessica goes back to the seller with these findings and requests a $5,000 price reduction to cover the panel replacement and a one-time rehab cost contingency. The seller counters at $3,000 off. Jessica accepts. Without the pre-offer inspection, she would have been negotiating from under contract with a hard close deadline — far weaker position.
Had the roof been 20 years old instead of 16, the calculus changes entirely: a full roof replacement at $12,000–$18,000 would have been required before any carrier would bind, and Jessica would have needed to either renegotiate by $15,000+ or walk.
Pros & Cons
- Costs $100–$200 but can surface five-figure system problems before you're committed
- Forces system-age awareness into your underwriting — rehab costs for system replacements belong in the offer math
- Protects your financing — catching an uninsurable panel or roof before closing keeps your mortgage approval intact
- Creates negotiating leverage — documented system deficiencies shift the repair conversation from opinion to fact
- Faster than a full home inspection — focused scope means results in 24–48 hours
- Narrow scope means it won't catch structural issues, pest damage, drainage problems, or dozens of other material defects
- A clean four-point doesn't mean the property is in good shape — it only means the four systems cleared the insurance threshold
- Can create false urgency — a marginal roof that passes today may fail a renewal inspection in 2–3 years if not addressed
- Findings create disclosure obligations in some states — once you know about the Federal Pacific panel, that knowledge follows the transaction
Watch Out
Polybutylene plumbing is an instant fail in Florida — full stop. If the supply lines are gray poly pipe, budget $8,000–$15,000 for a full replumb before any insurer will bind the policy. No workaround, no partial fix. This is the single most common reason four-point inspections kill deals in Florida specifically.
Don't confuse the four-point with a wind mitigation inspection. Florida carriers often require both. The wind mitigation inspection evaluates roof-to-wall connections, roof deck attachment, and opening protection for hurricane discount eligibility. It's a separate document, separate cost ($75–$150), and addresses a different underwriting question. Order both if the property is in a wind-exposed market.
A passed four-point today doesn't guarantee insurability at renewal. Carriers re-evaluate at policy renewal. A roof that's 14 years old at purchase will be 17 years old at the three-year renewal mark — potentially triggering the same conversation again. Factor in roof replacement timing when evaluating long-term hold costs and their effect on your NOI.
Verify that your inspector is Florida-licensed if buying in Florida. Florida requires four-point inspectors to be licensed home inspectors, general contractors, building inspectors, or licensed engineers. An unlicensed inspection won't be accepted by carriers in that state.
Ask an Investor
The Takeaway
The four-point inspection is a $100–$200 insurance gate that determines whether a 25+ year old property is financeable. For investors, the smart play is to treat it as part of your pre-offer due diligence rather than a post-contract checkbox. Order it before you lock up the deal so failed systems — polybutylene plumbing, Federal Pacific panels, aging roofs — become negotiation points that you control, not closing-week surprises that your lender controls. The cost of the inspection is trivial. The cost of discovering an uninsurable system at the wrong moment is not. A clean four-point makes your financing smooth; a failed one quantifies exactly what you need from the seller to make the numbers work. Either way, knowing is better than assuming.