Termite Damage Found During Renovation? What to Do Next — and Why FLIR Inspection Should Have Come First

The contractor's text reads: "Hey, we pulled back the subfloor and there's an issue you should come see." Those nine words end the renovation timeline, reopen the budget conversation, and turn a flooring project into something considerably more complicated.

Termite damage discovered during renovation is one of the most common calls Termike receives — and one of the most urgent. Not because of the damage that's already visible, but because of what the open wall or exposed sub-floor reveals about what's still hidden. The section your contractor found isn't the beginning of the story — it's the middle of it. The colony that consumed that wood has been feeding elsewhere in the structure for months or years before your renovation exposed this one location.

This guide covers the exact steps to take when termite damage is discovered during renovation, how FLIR thermal inspection maps the full extent before a single repair board goes in, and why fixing the visible damage before treating the active colony is the most expensive mistake homeowners make in this situation.

  Quick Answers for Homeowners Who Just Found Termite Damage

Should I stop the renovation when termite damage is found?

Pause — don't stop completely. The exposed area gives Termike's thermal inspector direct access that closed walls never do. This is actually the best moment to conduct a FLIR scan because the opened structure confirms thermal readings in the affected zone.

Is the visible damage all the damage?

Almost certainly not. Drywood termite colonies spread through adjacent framing over time. The portion your contractor exposed is typically the most advanced section — the colony's feeding zone extends further into the structure than the visible damage indicates.

What happens if I repair without treating first?

The active colony continues feeding behind the new materials. You've enclosed a live infestation. Frass will eventually reappear, the new materials will begin to be consumed, and the next discovery will be worse than the first.

How quickly can Termike respond to a renovation discovery situation?

Same-day or next-day scheduling for active renovation discoveries. Call (888) 683-3592 directly for priority availability.

  Why You Can Trust Termike Pest Control

License: California Structural Pest Control Board — License PR8832 (Branch 2 & 3 certified)

Membership: National Pest Management Association (NPMA)

Experience: 20+ years serving Orange County, LA County, Riverside & San Bernardino County

Inspection Technology: FLIR thermal imaging · UV tracking dust · Calibrated structural probing · Full photo-documented thermal report

Integrated Services: Termite treatment + structural wood repair coordinated in a single provider — no gap between finding and fixing

Why Termite Damage Discovered During Renovation Is Rarely Isolated

The structural reality of drywood termite activity explains why termite damage discovered during renovation almost always extends beyond what the contractor exposed. Drywood termite colonies don't consume a single stud and stop — they spread through the gallery network, moving laterally through adjacent framing members as the primary gallery becomes depleted.

According to the UC Integrated Pest Management Program, a mature drywood termite colony can contain 2,000–3,000 workers actively consuming wood at any given time, with gallery networks extending through multiple adjacent framing members. When your contractor exposes one damaged section, they've found the most visible evidence of a colony that has been expanding for potentially 12–24 months beyond that zone.

The exposed section is the colony's most advanced work — the area where feeding has proceeded long enough to produce visible structural compromise. The adjacent zones may show no surface evidence at all but contain active forager activity. This is exactly the scenario where FLIR thermal imaging finds the difference between what's visible and what's actually happening inside the structure.

The Case for FLIR Thermal Inspection Before Repairs Begin

The most expensive version of termite damage discovered during renovation is the one where the homeowner immediately has the exposed damage repaired and the renovation continues — only to have a second section of damage discovered when the next phase opens a different section of the structure.

FLIR thermal inspection maps the full colony extent before any repair decisions are made. Here's why this sequence matters:

•       Scope accuracy — A thermal scan of the full structure after renovation exposes termite damage gives the homeowner and contractor a precise picture of which structural zones show active colony activity. Repair scope can be set based on actual extent, not on what's happened to be opened so far

•       Treatment precision — Termike's treatment is targeted to the thermal-confirmed activity zones, not just the exposed damage location. This ensures the active colony is eliminated — not just the framing it happened to be consuming when the renovation opened the wall

•       Repair sequencing — Repairs that proceed before treatment are repairs made over an active infestation. After treatment is confirmed and the thermal signature shows colony collapse, repairs can proceed with confidence that the new materials won't be immediately colonized

•       Insurance and documentation — If a homeowner is pursuing a homeowners insurance claim or contractor dispute in connection with undisclosed termite damage, the FLIR thermal report provides independent documentation of the infestation's extent at the time of discovery — before any repairs altered the evidence

Termike's Response When Termite Damage Is Discovered During Renovation — Step by Step

When termite damage is discovered during renovation and Termike is called, here's the exact response sequence:

1.     Emergency scheduling — same day or next day — Priority scheduling for active renovation discoveries. The renovated area's open access means the FLIR inspection can confirm activity in the exposed zone directly, then map surrounding structural zones for colony extent

2.     FLIR scan of exposed zone — Direct access to opened framing allows the FLIR camera to confirm active versus historic infestation in the exposed section. Active colonies produce a heat signature; older damage that's been inactive does not. This confirms whether the discovered damage is from an active or previously treated colony

3.     Full-structure FLIR thermal scan — The full structure is scanned systematically with thermal imaging — all interior walls, the full attic, and accessible sub-floor areas. This maps the colony's complete presence in the structure beyond the renovation-exposed section

4.     Written thermal map of colony extent — The inspection report identifies every thermally flagged zone in the structure, with actual FLIR images of each finding. This becomes the repair scope reference — the contractor knows exactly which framing members are confirmed active versus confirmed clean

5.     Treatment coordinated with renovation timeline — Termike schedules treatment to allow renovation to continue in unaffected zones while treated zones cure before being closed up. The goal is to eliminate the active infestation without extending the renovation timeline unnecessarily

6.     Post-treatment thermal verification — After treatment, a follow-up FLIR scan confirms that the colony heat signature has collapsed in all previously flagged zones. Repairs on those zones proceed only after thermal verification — ensuring no active colony is enclosed behind new materials

For more on how FLIR thermal inspection works and what it detects, read our guide on how thermal imaging detects termites. For a comprehensive overview of the thermal inspection service, see the thermal imaging termite inspection guide.

Treatment Options When Termite Damage Is Found During Renovation

The treatment approach when termite damage is discovered during renovation depends on what the FLIR scan reveals about colony extent:

Localized Active Colony — Contained to Opened Zone

If FLIR thermal imaging confirms the colony is contained to the renovation-exposed area and adjacent framing — with no thermal signatures elsewhere in the structure — targeted spot treatment eliminates the colony before repairs seal the zone. Termike injects termiticide directly into the gallery system through the already-opened framing, eliminating the colony without additional wall access.

Colony Spread Across Multiple Structural Zones

If thermal mapping reveals colony activity in multiple wall or attic zones beyond the renovation-exposed section, a broader treatment approach is indicated. Options include no-tent whole-structure treatment for moderate spread, or full structural fumigation for widespread infestation across multiple inaccessible zones.

Subterranean Activity at Foundation

If thermal imaging reveals moisture signatures at slab edges or plumbing penetrations alongside the renovation-discovered drywood damage, concurrent subterranean activity is present. Subterranean soil treatment or bait systems are coordinated alongside the drywood treatment — addressing both species simultaneously before repairs proceed.

Wood Repair After Termite Treatment — Termike's Integrated Approach

One of the most significant advantages of using Termike when termite damage is discovered during renovation is the ability to coordinate treatment and structural repair as an integrated scope — not two separate contractors.

After FLIR-confirmed treatment and thermal verification of colony collapse, Termike's wood repair service repairs or replaces all structurally compromised framing members — including those in the renovation-exposed zone and any additional zones identified by thermal mapping. The renovation contractor receives a single handed-off structure where all termite damage has been treated and repaired, ready for finish work.

For context on the cost relationship between treatment and repair — and why treating early is always less expensive than waiting — read our guide on termite damage cost vs treatment. If financing the combined treatment and repair is a concern, see Termike's termite treatment financing options.

Frequently Asked Questions

Q: Should I tell my contractor to stop work entirely when termite damage is found?

A: No — pause work in the affected zone only, not the full renovation. Active renovation zones that don't show visible termite damage can continue while Termike assesses the affected section. The critical rule: don't repair or close any zone where termite damage was discovered until Termike has completed the FLIR scan and confirmed the colony extent. Closing an active infestation behind new materials is the most common and most expensive renovation mistake in this scenario.

Q: What if my contractor says they've seen this before and can handle the repair without a pest company?

A: Repairing the damaged wood is a carpentry task — treating the active termite colony is a licensed pest control function. California law requires pest treatment to be performed by a licensed Branch 2 pest control operator. A contractor who replaces the damaged studs without eliminating the active colony is making repairs that the colony will begin consuming again within months. The structural repair and the pest treatment are two different scopes requiring two different licenses.

Q: Can I claim termite damage discovered during renovation on my homeowners insurance?

A: Standard California homeowners insurance almost never covers termite damage, as it's classified as a maintenance issue rather than a sudden accidental loss. Some policies have collapse coverage that may apply if structural failure results from the termite damage. Termike's FLIR thermal inspection report — with thermal images and documented extent of infestation — provides the independent professional documentation you need for any insurance claim attempt. Read our guide on termite damage insurance claims in California for the full picture.

Q: How long does it take to get a FLIR thermal inspection scheduled after renovation discovers termite damage?

A: Termike offers same-day or next-day scheduling for active renovation discoveries in Southern California. The open renovation access is actually beneficial for the inspection — it confirms thermal readings in the exposed zone directly. Call (888) 683-3592 as soon as damage is discovered; our team prioritizes renovation-stop situations because the cost of delay is measured in contractor idle time and additional damage compounding.

  Don't Repair Over Undiscovered Damage — Book a Thermal Inspection First

If termite damage was discovered during your renovation, the colony responsible is almost certainly still active — and almost certainly still feeding somewhere you haven't opened yet. Termike's FLIR thermal inspection maps the full extent before another board is replaced.

Call now for emergency scheduling: (888) 683-3592

Or book online → Schedule Your Free Inspection