Termite Tenting and Fumigation Cost: What to Expect

By Andrea · August 2026

Tent fumigation is the most thorough method for eliminating drywood termites — sealing the entire structure and filling it with gas to reach every hidden gallery. For a full comparison of treatment methods, costs by species, and when each option applies, see the Termite Treatment Cost overview.

How Tent Fumigation Actually Works

A licensed fumigation crew tarps the entire structure — every gap sealed with tape and clamps — then releases sulfuryl fluoride (Vikane) inside. The gas penetrates every void, wall cavity, and gallery over 24–72 hours, making it the only method that reliably reaches drywood termites spread across multiple areas of a home — no drilling, no spraying, no localized access required.

Before release, the crew places warning agents and posts licensure notices. After the treatment period, the tent comes down, the structure is aerated, and a licensed fumigator performs clearance testing to confirm gas levels are safe before reentry. Vikane leaves no residual in surfaces, food, or fabrics — but plants, pets, and people must be out for the full treatment window.

What Tenting Costs — and What Drives the Price

Fumigation pricing is based on the total gas volume of the structure, not floor area — ceiling height counts as much as footprint. Larger homes, taller ceilings, and structural complexity all push the price up. For a broader look at how drywood treatment costs compare across methods, see Drywood Termite Treatment. The main cost drivers for fumigation specifically are:

• Home size and height: cubic footage is the base unit. Larger structures and taller ceiling profiles push the price up.
• Structural complexity: attached garages, covered patios, and irregular rooflines add tarping labor and material.
• Region: fumigation is most common in California, Florida, and Hawaii, where drywood pressure and local labor pricing are both highest. If your infestation is localized, Termite Spot Treatment may be a regional alternative worth comparing.
• Lodging and food costs: plan for 2–3 nights of hotel and eating out. This is a real out-of-pocket line item that online estimates rarely include.
• Prep requirements: bagged or removed food, opened interior doors, plants removed, fish tanks sealed — time and effort that adds up.

Collect at least three on-site quotes — companies need to measure cubic footage in person to give a real number, not a phone estimate. For benchmarking context before your first call, see the Termite Treatment Cost overview.

When Is Fumigation the Right Call?

Fumigation is warranted when drywood termites have spread beyond a single accessible area. If a licensed WDO inspection finds activity in multiple wall cavities, attic framing, and floor joists, no localized method — spot injection, orange oil, or heat — can reliably reach every colony. The gas can; a drill point can't.

Fumigation does not apply to subterranean termites — those species nest in soil, so gas sealed inside the structure never reaches the colony. Subterranean infestations require soil-applied liquid barriers or a bait program; see the Termite Treatment Cost overview for how to distinguish species and match them to the right method.

Fumigation vs. No-Tent Alternatives

Homeowners who want to avoid vacating often ask about orange oil, heat, or spot injection. These no-tent approaches work for confined, accessible drywood infestations — but they only treat what they can physically reach, unlike gas that fills the entire sealed structure. For a detailed look at how no-tent methods compare on cost and effectiveness, see Termite Treatment Without Tenting.

For the full range of drywood treatment options and when each is appropriate, see Drywood Termite Treatment. If you're specifically comparing no-tent methods, see Termite Treatment Without Tenting and Orange Oil Termite Treatment.

Before You Book: What the Inspection Determines

A licensed WDO inspection comes first — it maps active drywood damage, confirms whether spread has crossed multiple areas, and determines whether fumigation is actually warranted or whether Termite Spot Treatment is sufficient for a localized infestation. Skipping the inspection and assuming fumigation is needed can mean paying for more than the situation requires.

When comparing quotes, ask each company what their re-treatment warranty covers and how long it lasts — terms vary considerably between companies. Fumigation eliminates what's present at treatment but leaves no residual barrier, so a new swarm can infest afterward. Use the Termite Treatment Cost calculator to benchmark a rough range before your first call.