The short answer
A crawl space and foundation contractor’s inspection is a visit under and around the house that ends in a written plan and price. HomeGuide lists a crawl space inspection at $100–$250, though many contractors fold it into their sales visit. A home inspector’s report, done for a buyer, flags problems but doesn’t design repairs. A structural engineer you hire gives an independent opinion on whether and how to repair. If you want a price for fixing something, start with the contractor.
What a contractor’s inspection covers
A thorough crawl space and foundation inspection usually works through:
- Access and safety. The crawl space door, clearance, and anything that makes entry unsafe, such as standing water near wiring.
- The ground. Bare soil or a ground cover, its condition, seams and edges, and any standing water or wet spots.
- The air. Humidity and temperature readings, and whether the vents are open, closed or blocked.
- Insulation. Whether it’s dry, in place, or hanging and fallen.
- Ducts and pipes. Condensation, drips, disconnected ducts and leaking drain lines.
- Framing. Joists, sills, girders and subfloor, probed or tested for moisture where they look damp or soft.
- Piers and walls. Cracks, leaning or sunken piers, and cracked or bowing sections of the perimeter wall.
- Pests. Signs of termite tubes or damaged wood, and whether the inspection gap below the sill is clear.
- Upstairs. Floor dips, soft spots, cracks and doors that stick, often with a level or a measuring device.
- Outside. Gutters, downspouts and the slope of the ground at the foundation.
At the end you should get an explanation of what they found, photos, and a written plan and price before any work is agreed.
Call to schedule an inspection
Three kinds of inspection compared
| Compared | Crawl space or foundation contractor | Home inspector | Structural engineer |
|---|---|---|---|
| Usually hired by | The homeowner who wants a repair priced | A buyer, before closing | Anyone who wants an independent opinion |
| Goes into the crawl space | Yes | Yes, unless access is obstructed, entry could cause damage, or it’s unsafe | Yes, as needed |
| What you get | A repair plan and a price | A report of conditions found, with items for further evaluation | An evaluation of the structure, and sometimes a repair design |
| Typical cost | $100–$250 (HomeGuide), or included | Set by the inspector | $300–$750 (HomeGuide) |
| Has a repair to sell | Yes | No | No |
North Carolina’s home inspector standards require the inspector to enter underfloor crawl spaces except when access is obstructed, entry could damage the property, or conditions are dangerous, to probe structural components where deterioration is suspected, and to report signs of abnormal or harmful water penetration or harmful condensation. The same rules say a home inspection is not technically exhaustive. It’s a screening, not a repair design.
We’re not engineers or contractors. For when an independent licensed engineer’s evaluation is worth paying for, the contractor inspection vs structural engineer guide walks through the situations.
Getting ready for the visit
- Clear the way. Move stored items away from the crawl space door, and keep pets inside.
- Write down what you’ve noticed, and when: a smell that’s worse in summer, a floor that’s dipped more since last year, water after storms.
- Take photos of anything you’ve seen under the house, and of cracks inside, with a coin or tape measure for scale.
- Find the paperwork for past crawl space, termite or foundation work, including any warranty.
- Know your deadlines. If you’re selling or buying, say so; it changes how fast you need the written plan.
Call to schedule an inspection
Reading what you get
A useful written plan says what was found and where, what’s proposed for each problem, and what it costs, line by line. For crawl space work, it names the liner, the drying method and whether the permit is included. For structural work, it gives the number and location of every new support, pier or sistered joist. Vague wording like “stabilize the crawl space” isn’t a plan.
Also check what the plan leaves out. If the inspection found damp framing but the quote covers only a liner and a dehumidifier, ask who repairs the wood and when. If it proposes new supports under a girder, ask what they’ll stand on and whether a permit is included. North Carolina requires one for load-bearing repairs at any cost, and for converting to a closed crawl space regardless of cost. A plan that skips the permit is a plan to ask about.
NC DOJ warns about companies that come out at a low advertised rate and then point to expensive, alarming problems that supposedly need attention right away. A good inspection explains what’s urgent, what can wait, and why. If you’re unsure, a second written plan or an engineer’s evaluation is the check.
The signs page can help you decide whether what you’re seeing is worth an inspection at all.