Summary
A home inspection isn't a pass or fail, but a snapshot. Learn what Carson Dunlop inspectors evaluate and what to expect from your report.
Buying or selling a home is one of the biggest financial decisions most people will ever make. A home inspection is a critical part of that process, yet it’s also one of the most misunderstood. Understanding what an inspection actually includes can save buyers, sellers and agents a great deal of confusion down the road.
So what does a home inspection cover?
A Visual Observation, Not a Guarantee
A home inspection is a visual, non-destructive observation of a property at a specific point in time. Inspectors don’t make holes in walls, take measurements, or dismantle systems. What they do is observe and report, assessing the condition of a home’s major systems based on what’s visible and accessible on the day of the inspection.
That distinction matters. An inspector can note that a basement is dry today and teach you how to keep it that way, but they cannot guarantee it won’t flood tomorrow. The report is not a warranty. It’s a professional, informed assessment of where things stand right now, informed by experience, statistical data, and a trained eye for the signs of past problems, like stains, leaks, or wear patterns that hint at what may lie ahead.
The Nine Major Systems
Think of a home inspector as a generalist, the GP of the house. At Carson Dunlop, inspectors evaluate nine major systems: the roof, exterior, structure, attic, interior, heating, cooling, plumbing and electrical. If anything within those systems raises a flag, the client is referred to the appropriate specialist, just like a doctor sending a patient for further testing.
Life Expectancy and Replacement Costs
One of the most valuable things a Carson Dunlop inspection provides is context around major systems. For the furnace, air conditioning unit, hot water tank and roof, inspectors identify the age, size and statistical life expectancy. A high-efficiency furnace, for example, typically lasts 15 to 20 years. If the one in the home you’re buying is 21 years old, that will be clearly flagged in the report, along with a ballpark replacement cost.
Those estimates are based on ongoing market research and reviewed annually. They’re ranges, not quotes — a furnace replacement might be noted as $3,500 to $7,000 — but they give buyers and sellers a meaningful starting point for financial planning.
Period-Specific Observations Aren’t Always Defects
Older homes often contain materials that were standard for their era but are now understood differently, like knob-and-tube wiring, aluminum wiring, poly-B plumbing, vermiculite insulation, asbestos in plaster or floor tiles and popcorn ceilings. These are what inspectors call “period-specific observations.”
They’re not necessarily defects, and they’re not automatically deal-breakers. Aluminum wiring from the late 1960s and early ’70s, for instance, can be safely managed with the right connectors, antioxidant paste, and copper pigtails. Poly-B plumbing has known issues, but is often best addressed during future renovations. Vermiculite insulation should be tested for asbestos content, but if it’s sealed under blown insulation and not disturbed, the risk is generally low. Carson Dunlop inspectors are trained to flag these items, explain their significance, and recommend testing or specialist evaluation where appropriate — not to make the decision for you.
Water: The Biggest Culprit
If there’s one theme that runs through nearly every home inspection, it’s water. Wet basements, poor grading, blocked gutters, and missing caulking around tubs and windows are among the most common issues Carson Dunlop inspectors encounter — and most of them come down to simple, affordable maintenance.
The fix is often more straightforward than people expect. Ensuring the grading around your home slopes away from the foundation — even a modest pitch over four feet makes a difference — goes a long way. Downspouts should discharge at least four to six feet from the house. Gutters should be kept clear. Caulking around tubs, toilets, and windows should be checked and refreshed regularly. These small habits are what keep a basement dry year after year.
Efflorescence — the white, powdery mineral residue sometimes found on foundation walls — is another common water-related finding. It’s an indicator of moisture movement through the foundation, not necessarily an active leak, and it’s often manageable with the same exterior water management measures described above.
What the Report Is — and Isn’t
Carson Dunlop inspectors don’t pass or fail homes, and they don’t advise buyers on whether to purchase. The report gives you the facts. What you do with them is a personal and financial decision made with your agent. Your inspector will walk you through the big-ticket items, flag anything that warrants further specialist attention, and deliver a clear, detailed report summarising everything found.
Pre-listing inspections deserve a mention here. They give sellers a clear-eyed view of their property’s condition before it hits the market, allowing them to make repairs, adjust pricing, or simply disclose known issues with confidence. A Carson Dunlop pre-listing inspection carries weight with buyers and their agents, and can meaningfully smooth the transaction for everyone involved by reducing surprises and building trust.
How Often Should You Inspect?
Even outside of a transaction, periodic inspections make sense. Every system in a home has a life cycle — roofing, HVAC, plumbing, and electrical all age and degrade over time. Carson Dunlop recommends a professional inspection every three to five years to help homeowners stay ahead of that curve, plan capital expenditures, and catch problems before they become costly emergencies. Tying that cadence to mortgage renewal dates is one practical way to keep it on the radar.
A home inspection is an education as much as it is a report. At Carson Dunlop, the goal is to leave every buyer, seller, and agent with a clearer picture of the property — and the confidence to make informed decisions about one of the biggest investments of their lives.
Interested in booking a home inspection? Learn more here.