Four climates, four versions of the same problem
Advice written for one part of Texas often fails in another, so it helps to place yourself first. On the coastal and subtropical side, warmth and humidity keep vegetation heavy and winters short. Roof rats thrive there, using oak canopy, palms, fences and utility lines to reach rooflines, and they nest in attics through every month of the year. Attic noise is the usual first symptom. Around the central cities the picture mixes. Summers are punishing enough that water drives behavior, while winters bring a modest push toward heat. Both climbing and burrowing rats occur, and slab construction sends most activity to the roofline. In the north, around Dallas and Fort Worth, the autumn migration is more recognisable: a defined move indoors as nights cool, closer to the pattern in states further north. Out west the country is dry and open, buildings are further apart, and outbuildings, barns and stock water matter more than city vegetation. Mice in stored equipment and feed are the common complaint rather than rats in an attic. One standard covers all four: a quarter of an inch. What changes is where you spend the afternoon looking for it.
The Gulf side, where winter never arrives
Along the coastal band the seasonal script most rodent advice follows simply does not run, and that changes how you should plan. With median winter lows around 36F statewide and milder conditions still on the coast, the outdoor population never collapses. There is no month when the animals around your building die back and no natural reset. What you get instead is steady pressure, rising after heavy rain when burrows flood and animals move to higher, drier shelter. Heavy canopy compounds it. Live oaks, palms and dense ornamental planting give climbing rats continuous routes from the yard to the eave, often without ever touching the ground. A property can be beautifully landscaped and, from a rat's point of view, comprehensively bridged. Humidity does the rest, keeping attics warm and vegetation growing back quickly, so canopy cut away from a roof one year is worth checking the next. The practical consequences are two. First, exclusion is worth scheduling whenever you can arrange it rather than waiting for a season. Second, a plan that removes animals without closing openings will visibly fail within months here, because the supply outside has not changed at all.
Walking a Texas house: what to check and in what order
A methodical hour outside beats a week of guessing, and on a typical slab-built house the search has a natural order. Start at the roofline with binoculars from the ground, then a ladder. Look at every soffit return where two roof planes meet, since those pockets are awkward to build tightly. Check gable vent screens for chewed or lifted corners. Look along the eave where brick veneer meets the roof for a gap behind the trim. Check the collar around each plumbing vent pipe. Drop to the walls. Find where plumbing and electrical chases pass through the exterior, usually behind the water heater, the laundry or an exterior spigot, and check whether anything more than caulk closes them. Then the garage. The overhead door seal cracks in the heat, and the corners at the vertical tracks almost always leave a gap. Look for daylight under the service door. Finally the ground: bins sitting on soil, burrow openings along fence lines and shed bases, irrigation leaks, and any limb or vine that touches the structure. Mark each finding with tape as you go. The list you end up with is the same list a good inspector would produce, and it is what any quote should respond to.
Restaurants, shops and the dumpster problem
For a small food business in Texas, the rodent problem usually starts outside the back door, and fixing the kitchen without fixing the yard is a losing sequence. The dumpster is the centre of it. A container sitting on soil or broken asphalt, with a lid that will not close and a pickup schedule that lags the volume, supports a rat population that no interior programme can outrun. Because rats forage a hundred to five hundred feet from the nest, that container also feeds animals living under a neighboring building, which is why shared service areas often need a shared solution. The rear service door is next. Propped open during deliveries and prep, fitted with a sweep that wore out years ago, it is the single most used entry in most commercial units. Inside, the weak points are predictable: gaps around utility penetrations behind equipment, hollow bases under prep tables, and the space behind the ice machine where water and warmth meet. The things that work are unglamorous. Bins on hard standing with functioning lids, more frequent pickup, a real door sweep, sealed penetrations behind equipment, and a nightly routine that clears food debris from the floor and the yard. Ask any provider how they intend to handle the exterior, not just the kitchen.
Bait, pets and choosing methods you can live with
Rodenticide is the first thing many people buy and often the wrong first move in a home, particularly one with animals in it. The practical problems come in order. An animal that takes bait usually dies somewhere inside a wall or attic, which leaves an odour you cannot reach for weeks. Bait does nothing about the opening, so the next arrivals use the same route. And pets are a real concern: dogs will open a station that is not anchored, and cats, hawks and owls that catch a poisoned rodent take the poison with it. Rules on rodenticide use have been tightening in several states, so what is available now may not be what a provider used a few years ago. Trapping avoids most of that. Snap traps in protected boxes, placed against walls and on rub lines, are effective, and you know exactly what you have caught and where. If a provider proposes bait, ask what product, where it will be placed, how it is secured against pets, and what the sealing plan looks like alongside it. Bait outside a building with a properly sealed structure is a very different proposition from bait inside a house with the openings still wide open.