How Much Does Termite Damage Repair Cost?

Termite damage repair cost depends on one question more than any other: did the colony reach load-bearing wood? A few eaten baseboards is a weekend of trim carpentry; eaten floor joists is a contractor, an engineer and a five-figure invoice. Everything else — region, species, access — adjusts the number around that fork.

This guide prices repairs by damage type, explains what moves a quote up or down, covers the insurance question and the repair-versus-replace decision, and lists the questions that keep a contractor’s bid honest. For what the damage itself looks like and how to confirm whether it is active, see the termite damage guide.

Termite Damage Repair Cost by Damage Type

Typical US ranges, assuming the colony has already been eliminated:

The middle row is where most repair bills actually land. National figures consistently put the typical termite damage repair — a mix of localized framing and finish work — at $1,000–$3,000, with genuinely catastrophic cases rare and almost always tied to years of undetected feeding or an aggressive species.

Two more line items sit outside this table. The treatment that must come first is a separate bill: a liquid or bait treatment of an average home runs $225–$2,500, and whole-house fumigation for widespread drywood damage runs $2,000–$8,000 — method-by-method pricing is in the termite treatment cost guide. And the inspection that scopes everything — $75–$250 — is the cheapest dollar in the process (see the termite inspection guide).

What Affects the Cost of Repair

Two homes with the same species can produce repair quotes thousands of dollars apart. The variables that actually move the number:

• Whether damage is structural. Finish carpentry prices like finish carpentry; the moment a joist, sill plate or beam is involved you are paying for shoring, possibly an engineer’s letter and permits.
• Access. A rim joist in an open basement is an hour of labor; the same member in an 18-inch crawl space or behind finished walls multiplies it. Opening and closing walls is often half the invoice.
• Foundation type. Slab homes hide damage longer and make sill-plate work harder to reach; crawl-space homes give it away earlier but the work happens on the contractor’s back.
• How long the colony fed. Termites consume roughly a pound of wood a day, but damage compounds for years before it surfaces — the difference between a two-year and an eight-year infestation is often the difference between cosmetic and structural.
• Species. Formosan termites build colonies ten times the size of native subterraneans and can do serious structural harm in one to two years — in Gulf Coast and Hawaii infestations, assume the higher tiers until proven otherwise (see the Formosan termites guide).
• Region. Labor rates and permit costs vary by state, and high-pressure markets have more contractors experienced in this exact work — local context is collected in the state termite guides.

One diagnosis worth paying for before any bid: confirming the damage is actually termites. Soft, crumbly wood without galleries is often fungal rot, which changes both the repair scope and the fix — the comparison is in the termite damage vs. wood rot guide.

Does Homeowners Insurance Cover Termite Damage?

In practice, no. Standard homeowners policies across major carriers exclude insect damage because it is gradual and considered preventable maintenance, not a sudden, accidental loss. Homeowners routinely discover this only when a claim is denied.

The realistic ways to shift the risk going forward:

• A retreat-and-repair termite bond. Stronger bonds — typically $500–$1,500 for the initial treatment plus $150–$400 a year to renew — pay to repair new damage that occurs while the bond is active, up to a stated cap. This is the closest thing to termite insurance that exists; the difference between retreat-only and retreat-and-repair contracts is the entire point, and the fine print is covered in the termite bond guide.
• Annual inspections. Not coverage, but a $75–$250 inspection catches colonies while the repair is still a trim board instead of a floor system.

Repair vs. Replace vs. Sistering

How damage gets fixed depends on how much sound wood is left:

• Cosmetic patching. Surface damage to drywall paper, trim and baseboards is ordinary finish work — cut out, patch, repaint.
• Sistering. The standard fix for partially eaten joists and beams: a new full-length member is bolted alongside the damaged one, transferring the load to sound wood. Cheaper and less invasive than replacement, and usually the right call when galleries have not compromised the member end to end.
• Section replacement. Severely damaged spans come out entirely. Sill plates are replaced by jacking the structure a fraction of an inch and swapping the member; joists and studs are cut out and replaced between bearing points.
• Rebuild. Rare, but whole floor systems or wall sections occasionally need reconstruction under an engineer’s plans — the $10,000+ tier.

The choice between sistering and replacement is where quotes diverge most. Sistering runs cheaper on labor and avoids disturbing finished surfaces, but it is only legitimate when the damaged member still has sound bearing at both ends and the galleries are localized; a contractor who sisters a joist eaten through its middle is signing you up for a second repair. Full replacement costs more per member and often means opening floors or ceilings, but it is the only honest answer when damage runs the span. Ask each bidder to mark up photos of the damage showing exactly which members they propose to sister and which to replace — the explanation tells you more than the price.

One rule governs all of it: treat first, repair second. Sealing live termites inside new lumber feeds them fresh material, and no reputable contractor will bid structural work ahead of a confirmed kill. Note also who does what: the pest control company eliminates the colony; the repair itself belongs to a licensed contractor — for structural work, one with an engineer on call. Pest companies that offer to “also fix the damage” are usually subcontracting the carpentry anyway.

Questions to Ask a Contractor

Get answers in writing from at least two bidders:

1. Are you licensed and insured for structural work — and will you pull the permit if the scope requires one?
2. Will you sister alongside sound wood or replace full spans, and what in the damage justifies that choice?
3. Does the bid include an engineer’s assessment where load-bearing members are involved?
4. What does the bid assume about hidden damage — and how are change orders priced if opening the wall reveals more?
5. Will you coordinate timing with the pest control company so treatment is confirmed complete before repairs begin?
6. Is the finished work documented — photos, invoices and permit sign-off you can hand to a buyer’s inspector at resale?

A bid that skips the treatment-first question or prices structural work sight unseen is a bid to walk away from. Repair documentation matters twice: it proves the work to your own insurer later, and it is the difference between a smooth sale and a renegotiation when you sell.