Whole-Structure Termite Fumigation — Licensed Statewide
When drywood termite infestations spread through attic framing, wall voids, and living areas simultaneously, whole-structure fumigation is the most complete solution available. Louisiana's aging housing stock and subtropical climate make fumigation a necessary tool for widespread infestations that localized treatments cannot fully address.
Whole-structure fumigation is the definitive solution when drywood termite colonies have distributed themselves through multiple inaccessible areas of a home simultaneously. Louisiana's housing stock — heavily weighted toward pre-1970 wood-frame construction in New Orleans, Baton Rouge, the River Parishes, and the Cajun corridor — presents exactly the conditions that allow drywood termites to establish widespread, multi-colony infestations that no localized spot treatment can fully eliminate.
The subtropical Louisiana climate — averaging 60 inches or more of annual rainfall, summer humidity consistently above 80%, and mild winters that rarely freeze — means structures here provide termites a year-round habitat. Drywood termites colonize from swarm entry points in any exposed wood, establishing independent colonies in attic rafters, window frames, door surrounds, wall stud bays, furniture, and hardwood flooring throughout a structure. When multiple colonies have established throughout a home, fumigation is the only treatment that reaches every infested void simultaneously regardless of accessibility.
Whole-structure fumigation uses sulfuryl fluoride gas — a colorless, odorless fumigant that penetrates every void, crack, and gallery in the structure when properly sealed under tarps. The gas is held for a period sufficient to achieve lethal dosage throughout, then aerated completely before clearance testing confirms safe re-entry levels. No residue remains in the structure after proper aeration.
Fumigation eliminates all active drywood termite colonies present at the time of treatment but does not prevent future infestations. A follow-up termite prevention program is recommended after fumigation. The decision to fumigate versus pursuing localized drywood termite treatment should always rest on a thorough termite inspection by a licensed Louisiana specialist.
Fumigation cost is calculated primarily by the cubic footage of the structure. Home size, construction type, roof complexity, and location all affect the final cost. See our full termite treatment cost guide for broader context.
| Structure Size | Typical Cost Range | Notes |
|---|---|---|
| Small Home (under 1,500 sq ft) | $1,200 – $2,000 | Single-story, straightforward roofline |
| Mid-Size Home (1,500–2,500 sq ft) | $1,800 – $3,000 | Most common Louisiana residential range |
| Large Home (2,500–4,000 sq ft) | $2,800 – $4,000 | Multi-story or complex rooflines add cost |
| Very Large / Estate (4,000+ sq ft) | $3,500 – $4,500+ | Confirmed by on-site cubic footage measurement |
| Re-Entry Clearance Certificate | Included | Written clearance provided before re-occupancy |
Our licensed specialists determine whether your infestation warrants fumigation or whether localized treatment can resolve it — written recommendation before any cost is committed.
📞 Call (833) 838-1832Licensed specialists serving the Gulf Coast, New Orleans metro, Cajun Country, and north Louisiana statewide.
📚 Helpful Guides for Louisiana Homeowners
Our licensed Louisiana specialists determine whether your infestation requires fumigation or targeted treatment — written recommendation before any cost is committed.
📞 (833) 838-1832Available 24/7 — a real person answers every call