Termite fumigation for Long Beach homes with drywood colonies in more than one spot

Sulfuryl fluoride is a gas, not a liquid or foam. Under a sealed tarp, it moves through air spaces, wall cavities, attic insulation and the wood itself, reaching galleries deep inside studs and beams. Drywood termites breathe it in and die wherever they are in the colony, including the reproductives at the center that local treatments sometimes miss. Because the dose is calculated for the volume of the structure and the time under the tarp, the whole house receives a consistent treatment.

That reach is what makes fumigation predictable. A local treatment depends on finding each colony and drilling into the right gallery. Fumigation does not need to know where the colonies are. It treats every board under the tarp at the same time. The tradeoff is that the gas leaves nothing behind once it clears, so it does not stop a new swarm from starting a colony next season.

Prep takes most of a day for a typical household. Food, medicine and pet food that stays inside must be sealed in special fumigation bags or removed. Anything already factory sealed in glass or metal can usually stay as is, but opened packages, the refrigerator and freezer contents and anything in paper or plastic boxes need bagging or removal. People, pets and houseplants must leave, and that includes fish tanks.

Outside, water the soil around the foundation the day before so the tarps seal better, and trim back plants that touch the walls. Gardens and shrubs near the house can be damaged when tarps are pulled over them, so moving pots and trimming branches protects them. Open interior doors, cabinets and drawers so the gas circulates freely. Our written checklist covers each step in order. If you have a safe or locked cabinet, leave it open or tell us so we can plan around it.

Heat treatment also treats the whole structure, by raising wood temperature high enough to kill drywood termites, and it lets people return the same day. It struggles in houses with dense framing, insulated walls or heat-sensitive belongings, and it may not reach every board evenly. Local treatment, such as orange oil injection, is the least disruptive but only treats what it can reach.

We recommend fumigation when activity is widespread, hidden or in areas heat would struggle to penetrate evenly. When the inspection shows one or two well-defined colonies in reachable framing, a local treatment is usually the better fit and saves you the move out. We explain which category your house falls into after the inspection. Cost matters too: a local treatment for two small colonies usually costs less than a tent, while chasing many colonies spot by spot can end up costing more.

When clearance is confirmed, you can move back in, unseal your bags, restock the kitchen and have the gas relit. Some people notice a faint smell from the warning agent for a short while, which fades with ventilation. There is no residue to clean off surfaces from the fumigant itself. Opening windows for a few extra hours on the first day is a reasonable step if you want more fresh air.

Dead termites do not disappear. You may still see pellets falling out of old galleries for weeks or months, especially when vibration from doors or wind shakes them loose. Clean them up and watch whether new piles appear. If you see fresh pellets in a new location after several months, call so we can look. Many homeowners pair fumigation with a protection plan for the years after, since a cleared house can still be reinfested by next season's swarm.

Lot size and spacing shape how a fumigation day goes here. In Naples and along the Belmont Shore alleys, houses sit close together, sometimes only a few feet from the neighbor, and tarps have to be handled carefully between walls, fences and canal-side railings. We plan those jobs with extra attention to where tarps drape and how the crew moves around tight side yards.

Older homes in Bluff Park and Belmont Heights often have chimneys, dormers and tall wood siding, which add tarp work and sometimes need extra sealing at the base. Slab ranch homes in Lakewood Village and Los Altos are more straightforward to tarp but often have detached garages or patio covers tied into the house. Late summer and early fall are busy months for fumigation because that is when drywood termites swarm and people notice new pellets. Booking a few weeks ahead helps if you want a particular date.