
Reading a South Carolina Wood Infestation Report
What the form covers, what it deliberately leaves out, and how to read a finding.
CL-100 is the form number for the Official South Carolina Wood Infestation Report. Two pages, issued by a licensed pest control operator, recording visible evidence of wood destroying insects and decay fungi in accessible areas. Its moisture and decay section covers only the part of the structure below the level of the first main floor. It is valid for thirty days, and it guarantees nothing about the future.
The nickname undersells it
Around here the document gets called a termite letter, which makes it sound like a note confirming an absence of bugs. It is more than that and also less, and both halves matter. More, because the form covers a list of wood destroying organisms rather than one insect, and because in the substructure it also records decay fungi and moisture conditions. Less, because everything on it is limited to what was visible in areas somebody could actually get to on the day, and because it makes no promise whatsoever about what happens after the inspector drives away.
That last point is stated on the form itself and deserves repeating in plain words. The report is not a guarantee or a warranty against future infestation or future damage. A warranty is a separate arrangement, normally a termite bond written by a company that has treated the property. Confusing the two is how a homeowner ends up believing they were covered for something nobody ever agreed to cover. One document describes a moment in time. The other is an ongoing agreement with a company, and it has its own renewal and its own conditions.
That distinction matters more once you leave Conway itself, since a report written for a house near Bucksport Marina along the Waccamaw River carries different moisture notes than one for a farmhouse outside Galivants Ferry near the Little Pee Dee River, and different still from newer construction toward Red Hill by Coastal Carolina University. The licensed pros connected through this site read each report against the ground it was written on, not against a generic form, because a lender in one of these places is reading the same page for a very different property.
Page one and page two
The first page carries the identity of the job and the general findings. Property details, who ordered it, who inspected, the date. Then the substance: whether visible evidence of infestation from wood destroying insects was observed, whether visible damage was observed, whether the substructure showed decay fungi or excessive moisture, and whether any treatment was performed or is recommended. The answers are short by design. The form is a record, not an essay, which is exactly why so many people read it and come away unsure what they were told.
The second page is where the detail lives, and it is the page most people skim. It carries the diagram of the structure with the locations of findings marked on it, plus the notes and any obstructions or limitations the inspector wants on the record. If page one says damage was observed, page two is where you find out whether that means a porch post or a girder under the kitchen. Read the diagram alongside the notes, and if a mark on it is not obvious, ask the operator to stand at that spot and explain it.
These reports come from many types of homes across this stretch of the Grand Strand, and where the house sits changes what page two tends to show. A pier or crawl space cottage near Forestbrook Road often reads differently than a slab home closer to Conway itself, and the pros we connect you with cover both, along with the canals and beach blocks around North Myrtle Beach and the low-lying streets near Surfside Beach. Ground moisture, age of the framing, and proximity to water all shape what the diagram is pointing at.
- Covered organisms include subterranean termites, other termites, wood boring beetles such as powderpost beetles, carpenter ants and carpenter bees
- Decay fungi and moisture, recorded only for the substructure
- Visible evidence and visible damage, treated as two separate observations
- Treatment performed or recommended, if any
- A diagram showing where each finding sits
- Notes covering obstructions, limits and anything the inspector wants stated
Why the moisture section stops at the first floor
This is the single most misunderstood line on the form. The inspection for decay fungi and moisture is limited to the portion of the structure below the level of the first main floor. Above that line, moisture and rot are simply not part of the exercise. A damp bathroom wall on the second story, a leaking window frame in a bedroom, a shower pan quietly wetting a joist bay from above: none of that is the report's job, and a clear form says nothing about any of it.
The odd thing is that on a Conway house the limit lands almost exactly where the problems are. A vented crawl space over sandy fill near a tidal creek or the Waccamaw spends most of the year humid. Joists sweat, a vapor barrier gets torn by whoever last ran a duct, a downspout drops water beside a pier, and fungal growth follows. That is the zone the form does cover, so on a crawl space property the substructure section is often the most informative part of the whole document. On a slab house in a newer subdivision there is far less below that line to report on, which is worth remembering before reading too much into a clean form.
What accessible does not include
The inspector reports what could be seen without taking the house apart. Nobody is opening walls, lifting flooring or pulling insulation, and the form has a place to say what got in the way. Read those limitations first, before the findings, because they tell you how much of the structure the findings actually describe. A report on a house where half the crawl space was blocked by stored furniture is a report on half a crawl space.
Where something important is obstructed and the obstruction is movable, the sensible response is to move it and get that area looked at rather than accept the note. Boxes can be shifted. A padlocked hatch can be unlocked. A blocked hatch on the one side of the house you cannot see is exactly the side worth seeing.
- Anything behind finished walls, ceilings or paneling
- Wood under carpet, tile, vinyl or hardwood flooring
- Areas hidden by insulation, ductwork or plumbing runs
- Crawl space sections blocked by stored items, low clearance or standing water
- Sealed or unopenable spaces, including a closed-off crawl space with no hatch
- Rot and moisture anywhere above the first main floor
- Any prediction about whether termites will arrive next year
Thirty days on the clock
The report is valid for thirty days from its date. That is short, it is deliberate, and it is the reason so many closings turn into a rush at the end. A property changes: a colony finds a new route, water gets into a crawl space during a storm, a treatment is done in between. Thirty days is the window in which the document is still considered a fair description of the house.
Practical handling of that is straightforward. Work backwards from the closing date instead of forwards from the contract date. If the closing moves, assume the report needs to be reissued and ask before somebody else notices. Reissuing usually means another visit, since the operator is signing their name to current conditions rather than reprinting an old page, and a second visit needs booking like the first one did.
Reading the findings without losing your nerve
Almost nothing on this form is a disaster on its own, and the two words that decide how worried to be are active and damage. Evidence of past activity with nothing alive is history. An active colony is a present job with a known method and a known cost. Damage is the item that pulls in a different trade, because wood that has lost strength is replaced by a carpenter, not treated by an applicator. A report can carry all three, one of them, or none, and reading them as one lump is how people end up frightened by a finding that a treatment closes out in an afternoon.
Moisture notes deserve their own reading. A high reading under the house is not an insect problem, it is the condition that makes insect problems repeat, and treating wood while the water stays is money spent on a symptom. Deal with grading and downspouts first, then the ground cover and the barrier, then airflow or a dehumidifier. Do that in order and the next report on the house reads better without anyone spraying anything.
When the report shows live activity, the termite treatment page explains the next service step. Structural repairs remain a separate contractor job.
| What the report notes | Usually means | Sensible next step |
|---|---|---|
| Old mud tubes, nothing alive | Past activity, gone or treated | Ask for the treatment history |
| Live subterranean termites | A colony reaching the wood now | Get a treatment figure and bond terms |
| Powderpost beetle exit holes | Beetles in the floor framing | Ask whether the holes look fresh |
| Fungal growth on joists | Wood staying wet under there | Find the water first |
| Excessive moisture reading | Drainage, venting or a leak | Grading, barrier, airflow, in order |
| Damage marked on the diagram | Wood has lost strength | Get a contractor to look and price it |
| Area recorded as inaccessible | Nobody could see it | Move what blocked it, then look again |
The form in one box
- Full name: Official South Carolina Wood Infestation Report, form CL-100
- Two pages: findings on the first, diagram and notes on the second
- Records visible evidence in accessible areas only
- Decay fungi and moisture covered only below the first main floor
- Valid for thirty days from the inspection date
- Issued by a licensed pest control operator, never a home inspector
- Not a guarantee or warranty against future infestation or damage
Frequently Asked Questions
Is a CL-100 the same thing as a termite letter?
Same document, casual name. The trouble with the nickname is that it shrinks the form down to one insect and one question, when the report actually covers several wood destroying organisms plus decay fungi and moisture in the substructure. It also hides the limits, which are the part that changes how you read it: visible evidence, accessible areas, moisture only below the first main floor, thirty days of validity. If somebody hands you a termite letter and says the house is fine, read both pages and check what got recorded as obstructed before accepting the summary.
Does a clean report mean there are no termites?
It means no visible evidence was found in the areas the inspector could reach on that day. Subterranean termites work inside wood and travel below ground, so a colony can be present in a wall or under flooring with nothing showing where anybody could see it. That is not a flaw in the form, it is the honest limit of a visual inspection, and it is a large part of why bonds and monitoring exist at all. Treat a clean report as good news about the visible structure rather than a certificate about the whole house.
Does the report cover mold?
Not as a mold assessment, no. What it records is decay fungi and excessive moisture, and only in the portion of the structure below the level of the first main floor. Those notes are genuinely useful on a crawl space house because they point at wet conditions under the floor, but they are not an air quality test, they do not identify species, and they say nothing about anything growing in living space above. If mold in the house itself is the worry, that is a different inspection by a different specialist, and the CL-100 was never designed to answer it.
Half our crawl space came back as inaccessible. Is that acceptable?
Acceptable as a record, unhelpful as an answer. The inspector is required to state what could not be examined, so the note is the form working correctly. What matters is why. Low clearance and standing water are conditions of the house and cannot be argued away, though standing water is itself a finding worth acting on. Stored belongings, a locked hatch or a blocked opening are fixable in an hour. Clear what can be cleared, ask for that portion to be examined, and take the second look before you rely on the document.
Have the second page explained to you
A diagram and a set of notes are worth far more when somebody walks you through them. We will connect you with a licensed local pro who can issue the report, show you where each mark came from, and separate what needs treating from what needs a carpenter.
Call (843) 896-1048