What a CL-100 Is and Why It Matters
A CL-100 is a Wood Infestation Report required in most South Carolina real estate transactions. In Charleston, Mount Pleasant, and Summerville, it is common for lenders to require a clear CL-100 before closing.
The report looks for:
- Active termites
- Evidence of wood destroying insects
- Wood rot
- Moisture damage
- Fungal growth in crawlspaces
The CL-100 is not a cosmetic report. It does not focus on paint, flooring, or appearance. It focuses on structural wood and conditions that could weaken the home.
If active infestation or structural wood damage is present, it must usually be repaired and cleared before the loan can fund. In many transactions, the closing cannot happen until a clear letter is issued.
This is especially true for government-backed loans such as FHA and VA, which apply stricter safety and structural standards.
Understanding this early protects the timeline and reduces last-minute renegotiation.
Why CL-100 Findings Are Common in Charleston, Mount Pleasant, and Summerville
The Lowcountry climate creates ideal conditions for moisture-related wood issues.
Charleston and Mount Pleasant homes often include:
- Elevated foundations
- Vented crawlspaces
- High year-round humidity
- Heavy seasonal rain
- Salt air exposure near the coast
Summerville properties often include older framing, additions built at different times, and traditional crawlspace construction.
Humidity is the main driver.
When crawlspaces stay damp, wood absorbs moisture. Over time this can lead to fungal growth, rot, or conditions that attract termites. Even homes that appear solid from the outside may show damage underneath.
In this region, CL-100 findings are common. They do not automatically mean the home is unsafe. They mean the wood condition must be evaluated and, if active, corrected before closing.
What Lenders Actually Require for Clearance
Lenders focus on three core areas:
- Structural soundness
- Safety
- Habitability
If a CL-100 shows active infestation or structural wood damage, most lenders will require repair before closing. Government-backed loans such as FHA, VA, and USDA are especially strict.
Common lender-triggering findings include:
- Rot in sill plates or joists
- Compromised subflooring
- Damaged framing that affects structural support
- Active termite infestation
- Ongoing moisture that threatens structural wood
Many sellers assume they can offer a credit instead of repairing. In Charleston area transactions, that is often not allowed when the damage affects structure.
Loan type matters. Some conventional loans allow more flexibility. FHA and VA loans usually do not.
For a full breakdown of how loan type affects repair requirements, see Repairs vs. Concessions.
The Complete Process to Clear a CL-100
Clearing a CL-100 follows a specific sequence. Skipping steps often leads to delays.
First, determine what is active and what is not. CL-100 reports separate active damage from previous damage. Only active infestation and structural issues typically require clearance. Inactive damage that has already been corrected may not require additional work.
If you are unsure how to interpret the findings, see How to Read an Inspection Report.
Second, identify the source of moisture. Wood damage in Charleston, Mount Pleasant, and Summerville is often moisture-driven. Common sources include poor drainage, roof leaks, missing vapor barriers, high crawlspace humidity, or inadequate ventilation.
Repairing wood without correcting moisture can result in repeat findings during reinspection.
Third, complete corrective wood repairs. This may include replacing rotted joists, sistering framing members, reinforcing sill plates, or replacing damaged subfloor sections. The goal is structural stability. The work is corrective, not cosmetic.
Fourth, complete termite treatment if active infestation exists. Treatment alone does not clear structural damage. If termites have caused wood deterioration, both treatment and structural repair are required.
Fifth, schedule reinspection promptly. The termite company must return and verify that repairs and treatment meet clearance standards. Without the updated clear letter, the lender will not proceed.
Delays often occur between repair completion and reinspection scheduling. This gap can push closing dates in high-volume markets such as Mount Pleasant and Summerville.
Timing, Negotiation, and Transaction Risk
CL-100 issues rarely appear during showings. They usually appear after inspection and during lender review. That is late in the transaction.
Late discovery increases negotiation pressure. Buyers often assume that wood damage signals broader hidden problems. Uncertainty increases perceived risk.
When uncertainty rises, buyers request larger concessions. Lenders increase scrutiny. Closing timelines stretch.
Multiple moderate issues discovered together can feel larger than a single major issue. For example, minor rot combined with moisture staining and an older roof can shift buyer perception from manageable to high risk.
Early identification reduces this pressure.
Common Mistakes That Delay Clearance
Several patterns regularly cause delays in Charleston area transactions:
- Treating termites but not repairing damaged wood
- Repairing wood but ignoring moisture conditions
- Misreading inactive damage as active
- Waiting until due diligence to begin repairs
- Failing to coordinate reinspection quickly
- Not understanding repair addendum language
Repair language inside the contract controls what must be completed. To understand how repair wording works and how it affects scope, see What Is a Repair Addendum.
Understanding contract language prevents scope creep and unnecessary repairs.
Pre-Listing Strategy for Sellers in the Lowcountry
Sellers in Charleston, Mount Pleasant, and Summerville can reduce risk by acting early.
Consider:
- Ordering a pre-listing CL-100
- Addressing visible exterior wood rot
- Ensuring crawlspace access is clear
- Confirming moisture control is functioning
- Repairing minor trim rot before it spreads
Pre-listing clarity reduces renegotiation later. Buyers are less likely to inflate findings when the seller has already addressed obvious structural wood concerns.
Small corrective repairs completed early often prevent large concession demands later.
The Difference Between Clearance and Improvement
Clearing a CL-100 is not remodeling. It is not upgrading the home. It is restoring structural wood to a condition that satisfies lender and clearance standards.
The goal is compliance and stability.
When handled correctly, CL-100 repairs protect the transaction timeline and preserve seller leverage.
Where Clear2Close Fits
Clear2Close performs corrective wood repairs tied directly to active real estate transactions in Charleston, Mount Pleasant, and Summerville.
We focus on:
→ Structural wood replacement
→ Moisture-driven wood correction
→ Preparing properties for reinspection
→ Executing defined corrective scope tied to the transaction
We do not perform open-ended remodeling. We execute targeted repairs required to move the property from inspection to closing.
When CL-100 findings appear, clarity and sequencing matter more than panic.
Handled correctly, clearance is procedural.
Handled late or emotionally, it becomes negotiation leverage for the buyer.
If you are preparing to list and want to identify potential CL-100 concerns before they surface, learn how a Pre-Listing Walkthrough can help.