Red imported fire ants are one of the most notorious pests on the Texas Gulf Coast, building dome-shaped mounds across Houston lawns and delivering painful, burning stings when disturbed. Sasquatch Pest Control knocks down existing colonies and keeps new mounds from taking over your yard, backed by a 100% service guarantee and no long-term contracts.

How to Identify Fire Ants

The red imported fire ant (Solenopsis invicta) is small, with workers of varying sizes from about 1/16 to 1/4 inch, and a coppery reddish-brown head and body with a darker abdomen. The easiest way to spot them in Houston is by their nests: loose, dome-shaped mounds of fluffy soil with no visible central opening, often popping up in sunny lawns, along sidewalks and driveways, near utility boxes, and beside garden beds, especially after rain. Disturb a mound and hundreds of aggressive ants boil out fast to defend it.

Signs of a Fire Ant Problem

The most obvious sign is the mounds themselves, which can appear almost overnight after Gulf Coast rains and range from a few inches to over a foot across. Fire ants react instantly and swarm up anything that touches the nest, so painful stings while mowing, gardening, or walking barefoot are a common red flag. Stings typically leave a burning welt that develops into an itchy white pustule within a day or two. You may also notice ant activity around outdoor electrical equipment, AC units, and irrigation boxes, which fire ants are strangely drawn to.

How Sasquatch Treats Fire Ants in the Houston Area

Sasquatch uses a proven two-step approach for the fast-spreading Gulf Coast fire ant. First we broadcast a slow-acting bait that foragers carry down to feed the queen, collapsing the colony from within, then we treat individual mounds directly for quick knockdown of the ants you can see. We inspect the whole yard, target hot spots near play areas, patios, and utility boxes, and time treatments to Houston’s warm, active season for best results. Because new colonies can drift in from neighboring properties, we schedule follow-ups and back every service with our 100% guarantee.

How to Prevent Fire Ants

Fully preventing fire ants is tough on the Gulf Coast, but you can make your Houston yard far less inviting and catch mounds early. Keep the lawn mowed and well maintained so new mounds are easy to spot, reduce standing water and fix irrigation leaks since fire ants love moisture, and keep mulch and debris from piling against the foundation. Avoid disturbing mounds, which only scatters colonies into new “budding” nests, and address neighboring or common-area infestations, since fire ants readily migrate. Routine professional treatment is the most reliable way to stay ahead of reinfestation.

Frequently Asked Questions

How much does fire ant treatment cost in Houston?

The cost depends on your yard size, how many mounds are present, and whether you want one-time or recurring protection. Sasquatch gives you a free, upfront quote with transparent pricing and no long-term contracts, so you know exactly what your fire ant treatment covers.

Why do fire ant mounds keep coming back in my Houston yard?

Fire ants spread easily along the Gulf Coast by budding and by winged queens flying in from neighboring yards, roadsides, and open fields, so new mounds can appear even after you treat existing ones. Recurring or seasonal treatment is the most effective way to keep your lawn clear.

Are fire ant stings dangerous?

For most people a fire ant sting causes a burning welt and an itchy pustule, but multiple stings are common because the ants attack in numbers. People who are allergic can have severe reactions, so anyone with swelling, difficulty breathing, or a history of insect-sting allergy should seek medical care right away.

When is fire ant season in Houston?

Fire ants are active most of the year in Houston’s warm climate, but mound-building and activity peak in spring and fall, and they surge after heavy rains that push colonies to the surface. Treating during these active periods gives the best long-term control.

Why are fire ants attracted to my AC unit and electrical boxes?

Fire ants are oddly drawn to electrical equipment and are known to nest in AC units, irrigation controllers, and utility boxes, where they can cause shorts and damage. If you notice ants swarming this equipment, it is worth having the area treated before they cause a costly failure.