Ant Exterminator Cost in Houston: 2026 Price Guide
Last updated: March 5, 2026
Ant exterminator cost in Houston ranges from $100 to $500, with the average homeowner paying around $200. Houston has extreme ant pressure with multiple species active year-round, including fire ants in virtually every yard, carpenter ants that damage homes in the humid climate, and tawny crazy ants, an invasive species that is spreading through the metro and extremely difficult to control.
This guide covers ant treatment pricing specific to the Houston metro area, the ant species homeowners encounter, and when professional treatment is necessary. For national pricing, see our ant exterminator cost guide. For general pest control in the area, see our Houston pest control cost guide.
Houston Ant Treatment Costs by Service
| Service | Houston Cost | National Average | Notes |
|---|---|---|---|
| One-time indoor treatment | $100 – $250 | $150 – $300 | General household ants |
| Fire ant yard treatment (broadcast) | $150 – $350 | $150 – $300 | Whole-yard granular bait application |
| Fire ant mound treatment | $75 – $150 | $75 – $150 | Individual mound drench or bait |
| Carpenter ant treatment | $200 – $500 | $250 – $500 | Nest location, targeted treatment |
| Crazy ant treatment | $250 – $500 | Varies (regional pest) | Specialized treatment, multiple visits |
| Quarterly ant control plan | $100 – $175/qtr | $100 – $175/qtr | Perimeter spray + interior as needed |
Fire Ants in Houston
Red imported fire ants are the dominant outdoor ant species in Houston and arguably the most hated pest in the metro. Fire ant mounds are found in virtually every Houston yard, park, and commercial property. Their stings are painful, cause welts, and can trigger serious allergic reactions in some individuals.
Professional fire ant treatment costs $150 to $350 for broadcast yard treatment, where a technician applies granular bait across the entire yard. Broadcast treatment is more effective than individual mound treatment because it reaches colonies that have not yet built visible mounds. Individual mound treatment ($75 to $150) works for isolated mounds but misses underground satellite colonies.
Fire ant treatment in Houston is not a one-time solution. Fire ants recolonize from neighboring properties and undeveloped land. Most pest control companies recommend retreatment every 6 to 12 months for consistent yard coverage.
Carpenter Ants
Carpenter ants are a structural pest in Houston homes. Unlike fire ants, which are primarily an outdoor problem, carpenter ants nest inside the wood framing of homes, hollowing out galleries to house their colonies. They do not eat wood (like termites) but they excavate it, which weakens structural members over time.
Houston's humid climate makes wood framing more susceptible to carpenter ant damage because these ants prefer moist or water-damaged wood. Homes with roof leaks, plumbing leaks, or poor drainage are at higher risk.
Carpenter ant treatment costs $200 to $500 and includes locating the nest (often in wall voids, attics, or around windows and doors), applying targeted insecticide, and addressing the moisture conditions that attracted them. For more detail, see our carpenter ant treatment cost guide.
Tawny Crazy Ants: Houston's Invasive Threat
Tawny crazy ants (Nylanderia fulva) are an invasive species that has been spreading through the Houston metro area and the Texas Gulf Coast. These small, reddish-brown ants move erratically (hence the name "crazy") and form supercolonies with billions of individuals that overwhelm native ant species, including fire ants.
Crazy ants are uniquely problematic for several reasons:
- They invade in enormous numbers. Crazy ant infestations involve thousands to millions of visible ants, covering surfaces in a way that other ant species do not.
- Electrical damage. Crazy ants are attracted to electrical equipment. They crawl into electrical boxes, HVAC systems, and appliances where they cause short circuits and equipment failure.
- Traditional baits do not work well. Unlike fire ants, crazy ants do not reliably take granular bait back to the colony. Treatment requires direct-contact insecticides and perimeter barriers applied by professionals.
- Multiple visits needed. Crazy ant treatment typically requires 2 to 4 visits over several weeks to establish and maintain a chemical barrier. Cost runs $250 to $500 total.
Other Ant Species in Houston
Argentine ants
Argentine ants form supercolonies with multiple queens, making them difficult to eliminate. They are common in Houston landscapes and around foundations. One-time treatment costs $100 to $250, but quarterly service is recommended because new ants constantly reinvade from neighboring properties.
Pharaoh ants
Pharaoh ants are tiny yellowish ants that infest hospitals, commercial kitchens, and residential buildings. They are difficult to control because they "bud," splitting into multiple colonies when disturbed by improper treatment. Professional treatment with bait (not sprays) is essential. Treatment costs $150 to $400.
One-Time Treatment vs. Quarterly Plans
Houston's year-round ant pressure means a single treatment rarely provides lasting results. Here is how the options compare:
| Option | Cost | Lasts | Best For |
|---|---|---|---|
| One-time treatment | $100 – $250 | 1 – 3 months | Isolated indoor issue |
| Quarterly plan | $100 – $175/qtr | Year-round | Most Houston homeowners |
| Monthly plan | $50 – $80/mo | Year-round | Severe or multi-species problems |
Quarterly plans are the most popular option for Houston homeowners. At $100 to $175 per quarter ($400 to $700 per year), they provide a perimeter barrier that is refreshed every three months and typically include free re-treatment between visits if ants return.
What Affects Ant Treatment Cost in Houston
- Ant species. Fire ant yard treatment is straightforward and relatively affordable. Carpenter ants and crazy ants require more specialized treatment and cost more.
- Yard size. Larger yards require more product for broadcast fire ant treatment. A quarter-acre lot costs less to treat than a half-acre property.
- Infestation severity. A few ant trails in the kitchen cost less to treat than a full carpenter ant colony in the walls or a massive crazy ant invasion.
- Soil and irrigation. Houston's clay soil retains moisture, and homes with heavy irrigation create ideal ant habitat close to the foundation. These conditions may require more frequent treatment.
- Indoor vs. outdoor. Outdoor-only fire ant treatment is simpler. Indoor infestations that have reached wall voids, attics, or electrical systems cost more to resolve.
For a broader look at ant treatment options, see our guide to getting rid of ants.
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