Cockroach fumigation costs $1,000 to $3,000 for most homes, but that’s just one of several treatment methods, and it’s not always the best choice. The total you’ll pay depends on your home’s size, the severity of the infestation, and which extermination method your pest control company recommends. Many roach problems can be solved with cheaper approaches like gel baits or sprays, while the worst infestations requiring full tenting can run $2,000 to $7,500.
Cost by Treatment Method
The word “fumigation” gets used loosely. Some people mean any professional roach treatment, while the pest control industry distinguishes between several distinct methods, each with a very different price tag.
- Sprays and foggers: $40 to $100 per visit. These send a pesticide mist into the air and work for minor, localized problems. They’re the cheapest professional option but also the least thorough.
- Gel bait: $100 to $600. An insecticide disguised as food that roaches carry back to the nest. Effectiveness depends on placement near the nest and whether roaches have other food sources nearby.
- Traps and dust: $100 to $600. Best for targeting specific areas rather than whole-home infestations.
- Fumigation: $1,000 to $3,000. The exterminator fills your home with insecticide gas, reaching cracks and voids that sprays can’t. This is the go-to for severe, widespread infestations.
- Tenting: $2,000 to $7,500. Your entire home is sealed under a tent and flooded with gas. This is the most extreme and expensive option.
- Heat treatment: $2,000 to $7,000. The only chemical-free method. Technicians raise your home’s temperature high enough to kill roaches, which also eliminates odors and sanitizes surfaces.
One thing worth knowing: tent fumigation isn’t always the most effective approach for roaches specifically. Cockroaches can sometimes avoid the fumes, which is why many exterminators prefer gel baits or targeted chemical treatments for all but the most extreme cases. A good pest control company will steer you toward the right method rather than defaulting to the most expensive one.
How Home Size Affects Price
Larger homes require more product, more labor, and more time, so square footage is one of the biggest cost drivers. For general cockroach extermination, here’s how pricing scales:
- 1,000 sq ft: $100 to $150
- 1,500 sq ft: $150 to $250
- 2,000 sq ft: $250 to $350
- 2,500 sq ft: $350 to $450
- 3,000 sq ft: $450 to $550
These figures reflect standard extermination visits. Full fumigation or tenting will cost significantly more at every size tier, since sealing and gassing a home is a much larger operation than targeted baiting or spraying.
DIY Treatment vs. Professional Cost
A can of roach spray from the hardware store costs about $10, which makes professional treatment feel expensive by comparison. But most DIY attempts don’t end with one can. A common pattern is buying multiple spray brands, gel baits, and plug-in repellers that don’t work, easily spending over $100 while the infestation grows. The roaches are still there, and now they’ve had weeks to multiply.
DIY methods have moderate success for outdoor roaches (the large American cockroach you might see on a porch), but professional treatment has a much higher success rate for indoor infestations, especially German cockroaches. German roaches breed fast, hide deep in walls and appliances, and rarely respond to store-bought products alone. A professional indoor cleanout for German cockroaches typically runs $300 to $600 over multiple visits. An exterior barrier spray for outdoor species costs $150 to $250.
Ongoing Service Plans
A single treatment doesn’t always end a roach problem permanently, especially in apartments, older homes, or warm climates where reinfestation is common. Many pest control companies offer recurring service contracts that include scheduled visits and callbacks if roaches return between appointments.
- Quarterly plan (4 visits per year): $400 to $800 per year
- Monthly plan (12 visits per year): $80 to $150 per month, or $960 to $1,800 annually
- Annual seasonal plan: Around $700 per year, typically including 4 visits and a guarantee with unlimited callbacks
These costs come on top of the initial treatment. If you’re dealing with a severe infestation, expect to pay for the cleanout first, then transition to a maintenance plan. For apartment buildings or commercial properties, building-wide service runs $1,500 to $6,000 or more per year.
Hidden Costs of Tenting and Fumigation
If your situation calls for full tenting or whole-home fumigation, the price tag on the service itself isn’t the only expense. The fumigant used in structural treatments (sulfuryl fluoride) is toxic to all living things, so you’ll need to plan for several additional costs.
You, your family, and all pets, including fish and reptiles, must leave the home for the duration of treatment, which typically means one to three nights in a hotel. Pet boarding adds to this if you can’t bring animals with you. All food, medications, pet food, and tobacco products that aren’t sealed in their original airtight glass, metal, or plastic packaging must be removed from the home or double-bagged in special bags the pest control company provides. This includes everything in your refrigerator and freezer. Houseplants need to be moved out as well.
Budget an extra $200 to $500 or more for hotel stays, pet boarding, and replacement of any food you can’t properly seal. The preparation work itself takes time: packing up a kitchen, clearing pantries, and organizing medications can easily eat a full day.
Getting an Accurate Estimate
Most pest control companies, including national chains like Terminix, offer free initial inspections. This is the best way to get a realistic number because the actual cost depends on factors a price guide can’t account for: how deep the infestation has spread, which species you’re dealing with, how accessible your walls and crawl spaces are, and whether your home’s layout creates challenges for treatment.
Get quotes from at least two or three companies. Ask specifically what method they recommend and why, whether the quote includes follow-up visits, and what guarantee they offer if roaches return. A company that pushes expensive fumigation without explaining why cheaper methods won’t work is worth questioning. For most residential roach problems, targeted treatments in the $150 to $600 range solve the issue. Fumigation and tenting are last resorts, not first options.