Fumigation costs typically range from $2,000–$8,000, depending on the size of the home, the type of pest, and the severity of the infestation. Pest control professionals most often use fumigation to eliminate termites and other wood-destroying insects, but it’s also saved for severe infestations when other treatment methods fail.
To estimate typical fumigation costs, our team analyzed national pricing ranges from top pest control providers and estimates for whole-home treatments. In this guide, we break down average fumigation costs, the factors that influence pricing, and additional expenses you may encounter during the process. Plus, This Old House landscaping contractor Roger Cook talks about how pests can enter homes.
Key Takeaways
- Fumigation generally costs between $2,000 and $8,000 on average, or $1–$4 per square foot, with house size being the most significant factor in determining overall cost.
- A 2,000-square-foot home typically costs $2,000–$8,000 to fumigate, while larger homes of 3,000 square feet can cost up to $12,000 for complete treatment.
- Additional expenses include temporary accommodations averaging $159 per night for hotels, plus $500–$1,000 for deep cleaning or replacing items exposed to dead pests after fumigation.
How Much Does Fumigation Cost for Different House Sizes?
Pest control companies charge between $2,000 and $8,000 to fumigate an average-sized home, or $1–$4 per square foot, based on estimates from various pest control companies. House size is the most significant factor in fumigation costs. The larger your home, the more fumigant—or pesticide—and labor needed to set up the process. Exterminators may even need to set up additional tarps or seals or find a larger tent to tent your home, increasing the overall cost.
The table below breaks out estimates for fumigation costs based on home square footage.
| Home Size | Fumigation Cost Range | Average Fumigation Cost |
|---|---|---|
| 1,000 square feet | $1,000–$4,000 | $2,500 |
| 1,500 square feet | $1,500–$6,000 | $3,750 |
| 2,000 square feet | $2,000–$8,000 | $5,000 |
| 2,500 square feet | $2,500–$10,000 | $6,250 |
| 3,000 square feet | $3,000–$12,000 | $7,500 |
| 3,500 square feet | $3,500–$14,000 | $8,750 |
Note: The cost estimates featured in this guide reflect national pricing ranges reported by pest control providers and contractor estimates for whole-home fumigation treatments.
Homes with complex layouts, attached garages, or multiple rooflines may cost more to fumigate because technicians must spend additional time sealing and tenting the structure.
What Factors Affect Fumigation Costs?
Several factors affect fumigation costs, including infestation severity and type, fumigation duration, and temporary accommodations. You’ll also want to budget for the initial inspection. An average termite inspection costs between $100 and $200, although some companies offer free inspections or estimates.
While researching pest control companies and their inspection policies, we found that many providers, including Terminix, offer free inspections to help homeowners identify infestations and determine whether fumigation is necessary. Use this appointment to ask questions about treatment options, preparation requirements, and the estimated cost of fumigation.
Infestation Severity
Fumigation is a serious treatment option reserved for extensive or severe infestations. The more severe the infestation, the greater the amount of pesticide needed to eradicate the pests successfully. Fumigation typically costs between $1 and $4 per square foot. A more severe infestation will likely require a higher treatment cost, leaning toward a price of $3–$4 per square foot.
Fumigation Duration
The longer the fumigation process takes, the more expensive your cost overall. As with any service, the more labor and time required, the greater the pest control cost.
Infestation Type
The most common type of pest fumigation is against termites or wood-destroying insects such as carpenter ants. However, if other methods aren’t possible or effective, exterminators may treat other pests such as bed bugs, rodents, and cockroaches with fumigation.
The type of pest impacts overall cost. For example, rodent fumigation typically costs between $2,000 and $6,000, slightly less than the average fumigation cost, which we found to be up to $8,000. Depending on the type of infestation, you may need to deep-clean or replace items exposed to dead pests. Budget at least $500–$1,000 for these additional expenses after fumigation.
Temporary Accommodations
During the fumigation process, you’ll need to stay somewhere else until you can safely return to your home. If possible, consider staying with a friend or family member to save money during this process. Otherwise, you’ll need to factor in the cost of hotel accommodations, fees, and food while you’re away.
When Is Fumigation the Right Pest Control Method?
Almost all homeowners have dealt with pest infestations at one time or another, whether it’s a few ants entering their home, a lone mouse, or a wasp’s nest. Pests often enter homes looking for food and warmth, especially as outdoor temperatures drop, says Roger Cook, a landscaping contractor featured in the Ask This Old House episode “How to Choose a Mouse Trap.” However, technicians reserve fumigation for severe infestations that exterminators can’t address via traps or pesticide spraying.
Small openings around a home’s exterior can also make it easier for pests to enter and spread throughout the structure. Cook says that mice can squeeze through openings “bigger than a quarter of an inch.”
Fumigation is most commonly associated with termites or wood-destroying pests, such as carpenter beetles, that spread throughout a structure. Because the fumigant gas circulates through the entire home, it can reach pests hidden inside walls, floorboards, beams, furniture, and other hard-to-access areas.
Treatment Alternatives
Fumigation is often a last resort for severe infestations or used as large-scale termite control. However, you can potentially address some pest problems with more eco-friendly alternatives.
- Heat treatments: Thermal heat eradicates many pests, including termites. This process involves tenting your home and raising the temperature of the structure’s wood long enough to kill all stages of pest development.
- Spot treatments: Another way to address termites is with spot treatments, a process in which exterminators drill several holes into infested walls and flooring before injecting a termiticide inside. This method requires multiple treatments and may not reach pests in inaccessible areas.
- Ultraviolet (UV) and steam treatments: UV light disinfects surfaces and can help kill some small pests. It’s often paired with steam or heat cleaning to treat localized infestations.
Signs Your Home Needs Fumigation
If your home needs fumigation, you likely have a severe infestation of at least one pest. Here are some common warning signs that pests may have spread throughout your home.
How Does Fumigation Work?
Fumigation involves sealing a structure so pest control professionals can release a fumigant gas that circulates throughout the home. Technicians typically cover the building with large tarps or a tent to contain the treatment and allow the gas to penetrate walls, wood framing, and other hidden areas where pests may live.
Because the fumigant spreads through the entire structure, fumigation can eliminate pests in places that sprays, traps, or spot treatments can’t reach. Pest control professionals usually reserve this method for severe infestations, particularly drywood termites or other wood-destroying insects that hide inside structural materials.
After the treatment period ends, technicians aerate the home to remove the fumigant before allowing residents to return safely.
How To Prepare for Fumigation
Your pest control provider will give you detailed instructions before the fumigation begins. Preparation requirements vary depending on the pest and treatment plan, but most homeowners will need to take several steps to ensure the fumigant can circulate safely throughout the home.
Here’s a list of general guidelines for setting up your home for a successful fumigation:
- Arrange temporary lodging: Fumigation typically requires homeowners, pets, and plants to leave the property for several days until the home has been fully aerated.
- Schedule a gas shutoff: Pest control companies often recommend shutting off natural gas lines before treatment to reduce fire risks during fumigation.
- Coordinate with your fumigation provider: Confirm appointment times, provide access to the home, and review preparation instructions before leaving the property.
- Open interior spaces: Opening interior doors, cabinets, drawers, and closets allows the fumigant gas to circulate throughout the structure.
- Remove or seal food items: Food, medication, and pet supplies must be removed or sealed in special fumigation-safe packaging to prevent contamination.
- Prepare the yard: Technicians may ask you to trim plants and move outdoor items away from the home so they can fully seal the structure.
- Remove exterior fixtures: Some roof-mounted items or exterior decorations may need to be removed before tenting the home.
- Notify neighbors: Fumigation tents are highly visible, so letting nearby neighbors know ahead of time can help avoid confusion during the treatment period.
DIY vs. Professional Fumigation
Do-it-yourself (DIY) fumigation isn’t recommended by professional companies. Fumigation involves using highly regulated chemicals meant only for trained, certified professionals. Attempting this method without proper training can expose your family to potentially dangerous chemicals.
Other issues with DIY fumigation include effectiveness. If you’re not a pest control professional, you could end up only treating the visible areas where you spot pest problems. However, pests often live in places where we can’t see them, such as inside the walls, crawlspaces, wood, or the attic. DIY pest control products typically aren’t strong enough to handle infestations requiring professional fumigation. For this reason, we recommend saving DIY treatments for minor pest problems or as part of your prevention plan, but using professionals for large-scale infestations.
Is Fumigation Worth It?
If you’re at the point where an exterminator is recommending this last-resort pest control treatment option, fumigation is likely worth it. Not only can pests destroy your home and belongings, but many can negatively affect your family’s health by spreading disease, triggering asthma and allergies, and causing microbial diseases and infections.
Fumigation reaches pests in areas where other treatments can’t, making it a worthwhile investment if large infestations—which can often multiply in size if left untreated—take over your home.
FAQs About Fumigation Cost
Can you stay in a house after fumigation?
Yes, you can stay in a house after fumigation. Once the process is complete, the technicians will aerate your home to remove the gas, making it safe to live in again. Depending on outdoor conditions and the size of your home, you can expect to leave your home for 24—72 hours.
Is fumigation completely effective?
No pest control method is 100% effective, but when done correctly by experienced professionals, your home should become pest-free after fumigation. Many reputable pest control companies offer a satisfaction guarantee, meaning the exterminators will return if the targeted pests remain after fumigation.
Is fumigation safe for humans?
Fumigation is safe for humans when performed by certified pest control professionals who are trained to handle fumigants properly. After treatment, technicians use specialized equipment to confirm the gas has fully dispersed before allowing residents to return. Because fumigants do not leave residue on belongings, the home is safe once it has been properly aired out and cleared.
What factors influence the cost of fumigation?
Many factors influence the cost of fumigation, such as house size, infestation type and severity, and related expenses such as temporary lodging. The biggest factors in fumigation price include the type of infestation and house size. If you have a larger home, expect to pay more because exterminators will need more labor and pesticides to treat your home completely.