Skip to content
Precision Pest Control

Hays County, Texas

Pest Control in San Marcos, Texas

Precision Pest Control works throughout San Marcos, from student rentals near Texas State and historic districts downtown to family houses on the hills west of the Balcones Fault. Plans cover cockroaches, scorpions, termites, fire ants and mosquitoes for landlords, homeowners and businesses, and inspections for termites and other pests serve buyers and sellers along the San Marcos River and Interstate 35.

Free estimate

Get a Free Pest Control Estimate for Your San Marcos Property

Tell us what you are seeing and where. We will recommend a plan for your home or business, with service plans from $57.

  1. 1Request your free estimateOnline or by phone, for a home, rental or business.
  2. 2We inspect and explainYou see where pests get in and what the plan covers.
  3. 3Service plans from $57Eco-friendly products, built around your property.

What we treat

Exterminator Services We Offer in San Marcos

Roaches, Scorpions and Termites in San Marcos Rentals and Family Homes

German cockroaches

Cockroach Control in San Marcos

The German cockroach is the small, light brown kitchen roach with two dark stripes behind its head, and it does not live outdoors in Texas. It rides in with groceries and boxes and, once established, moves easily from apartment to apartment. A single egg case produces 30 to 40 nymphs, and a generation takes about 100 days. AgriLife Extension ranks baits among the most effective treatments, and they work best when little other food is left out.

Striped bark scorpions

Scorpion Control in San Marcos

The hills west of the fault are striped bark scorpion country. Texas A&M describes the species as an active forager that does not burrow and is closely tied to dead vegetation, fallen logs and human dwellings. It slips through small cracks, most often in hot, dry spells when it is after water and cooler air, and it is often found in attics. Most stings cause only moderate reactions, and an ice pack takes the edge off the pain.

Native and Formosan termites

Subterranean Termite Control in San Marcos

Hays County is one of the Texas counties where Formosan subterranean termites are confirmed, in addition to the native subterranean termite found statewide. Formosan colonies are at least four times the size of native ones, attack living trees such as pecan and white oak, and can keep an aerial carton nest inside a wall when a leak supplies moisture. If your house stands on piers, check them and the sill above for mud tubes.

Red imported fire ants

Fire Ant Control in San Marcos

San Marcos has two rivers and four named creeks, and fire ants do not drown when water rises. A flooded colony links into a floating raft, shaped like a ribbon, mat or ball, and drifts until it bumps a tree, fence or debris pile. Extension entomologists warn against poking a raft with a stick, advise gloves and long sleeves for cleanup, and say to skip bait right after a flood because displaced colonies are not foraging.

Container mosquitoes

Mosquito Control in San Marcos

The river is not the source: mosquitoes usually do not breed in running streams. The yellow fever mosquito and the Asian tiger mosquito lay eggs in buckets, plant saucers, tires and clogged gutters, bite in daytime and tend to stay within 200 to 300 yards of where they hatched. Water has to stand for about a week to produce adults, so emptying containers around a rental house every few days breaks the cycle.

Spotted something?

Need Cockroach Control in San Marcos?

  • Cockroach Control
  • Scorpion Control
  • Subterranean Termite Control
  • Fire Ant Control
  • Mosquito Control
Pest control treatment in San Marcos, TX

Seasonal Pest Control in San Marcos

  1. Spring, March to May

    Native termites send out winged swarmers on spring afternoons, usually in March and April. By late May the night-flying Formosan swarmers gather at porch lights. Spring rain refills every saucer and gutter, and fire ant mounds that seemed gone reappear across lawns and medians.

  2. Summer, June to August

    Summers here are hot and humid. Scorpions move indoors during dry stretches, and tawny crazy ants, an invasive species confirmed in Hays County, reach their highest numbers in July and August. Kissing bugs fly to lights on the hottest nights; state records show one locally acquired Chagas case in the county between 2013 and 2025.

  3. Fall semester, August to November

    Boxes moving between apartments are one way German cockroaches spread, so look before you unpack. Field crickets mob bright lights in August and September, and once the weather cools, spiders, scorpions and millipedes head inside. Winters bring some night frost but rarely enough cold to end pest activity.

Not sure what you are dealing with in San Marcos?

Describe it on the phone and we will tell you what it likely is and how we would treat it. Estimates are free.

(512) 561-7451

7 questions answered

San Marcos Pest Control FAQ

Looking for pest control near you in San Marcos? Call (512) 561-7451 or request a free estimate.

Do mosquitoes breed in the San Marcos River?

Not in the flowing, spring-fed channel. AgriLife Extension explains that mosquito larvae need stagnant water holding some organic matter, so running streams and maintained swimming pools are usually poor breeding sites, while birdbaths, old tires and clogged gutters are excellent ones. Mosquitoes that bite near the river most likely hatched in containers a short distance away.

Are there scorpions in San Marcos?

Yes. The striped bark scorpion occurs throughout Texas, and AgriLife entomologists call it the most common scorpion in South Central Texas. It is yellowish tan with two dark stripes and grows to about two and a half inches. Sealing doors, screens and weep holes does more than spraying, because scorpions are difficult to control with insecticide alone.

Are Formosan termites found in San Marcos?

They have been confirmed in Hays County, according to the list kept by Texas A&M's urban entomology program. Formosan termites swarm at night in late May and early June and are drawn to lights, while native termites swarm by day. Some Texas termite contracts leave Formosan termites out, so ask which species your agreement covers.

What do San Marcos landlords pay for pest plans?

Landlords, student renters and homeowners get a free estimate, products that are eco-friendly and plans from $57. Tell us about the property by way of the estimate page, or call (512) 561-7451; a building with several units can be discussed in one conversation.

Can I get a termite and pest inspection before buying in San Marcos?

Yes. Formosan termites are confirmed in Hays County and the historic districts have older houses, so a pre-sale look matters. Precision Pest Control offers pre-sale inspections covering termites and pests so everyone at the table has the same information. Request one online or call (512) 561-7451.

What can I do about roaches in a shared San Marcos building?

Tell the landlord early, because roaches do not respect lease lines. Caulk gaps around sinks and plumbing, keep food sealed and know that German cockroaches spend about three quarters of their lives in cracks under a quarter inch wide. Precision Pest Control offers cockroach control for rentals and homes.

Do you work with San Marcos landlords and businesses?

Yes. Residential, commercial and real estate customers in San Marcos are all served, and every job begins with a free estimate. In a city with a median age of 23.7, rentals turn over often, and a plan keeps each property in shape between tenants.

San Marcos, Texas

Why San Marcos Is a Hotspot for Pests

San Marcos grew up around springs that have never run dry in recorded history and around a university that now enrolls about 47,500 students. A young, mobile population and a fault line through town both shape its pest problems.

San Marcos is the Hays County seat, 30 miles southwest of Austin and 51 miles northeast of San Antonio on Interstate 35, at an elevation of 574 feet. The 2020 census counted 67,553 residents with a median age of 23.7, a number that reflects Texas State University, established in 1899. The San Marcos Springs rise from the Edwards Aquifer into Spring Lake and feed the river, which the Blanco River joins four miles downstream.

The city sits on the Balcones Fault. West of it are rolling, often rocky hills dotted with cactus; the eastern part is Blackland Prairie. Downtown was laid out in 1851 and there are five residential historic districts, so a rental near campus can be generations older than a house on the edge of town. Precision Pest Control works with San Marcos landlords, homeowners and businesses and quotes every job free.

Homes in San Marcos, TX

Local field notes

What our technicians check first on a San Marcos property

Unique to San Marcos

What Makes San Marcos Different for Pest Control

Student rentals, historic districts and hillside lots

Local conditions decide where pests live and how they get in. These are the San Marcos details that shape every plan we write here.

  1. In a shared building, roaches do not respect lease lines, so tell the landlord early instead of spraying alone. Caulk the gaps around sinks, plumbing and kitchen splash guards and keep food sealed; German cockroaches spend about three quarters of their lives wedged into cracks less than a quarter inch wide. A vacuum with a HEPA filter removes roaches and the allergens they leave behind.

  2. For houses west of the fault, clear rock and lumber piles from the foundation, trim limbs off the roof and plug weep holes with copper mesh. On the prairie side, keep a visible band of foundation between the soil and the siding so that a termite tube cannot climb unnoticed, and fix leaks that keep wood damp.

Areas We Serve Around San Marcos

  • Downtown San Marcos
  • Belvin Street Historic District
  • Dunbar Historic District
  • Kyle
  • Martindale
  • Redwood
  • New Braunfels

San Marcos pest help for owners, renters and landlords

Whether you hold the lease or the deed, San Marcos estimates are free when you request one online, Precision Pest Control plans begin at $57, and (512) 561-7451 gets you an answer by phone.