Rat & Mouse Control
Rodents gnaw through wiring, contaminate food, and carry disease — and they can squeeze through a gap the size of a dime. A fall or winter influx is common in Middle Tennessee. Don't wait until you have a full-blown infestation.
Rats & Mice in Middle Tennessee
Three rodent species account for the overwhelming majority of home infestations across Williamson, Davidson, and Rutherford counties: the House Mouse (Mus musculus), the Norway Rat (Rattus norvegicus), and the Roof Rat (Rattus rattus). Each has distinct habits and preferred entry points, which is why proper identification matters before treatment begins.
House mice need only a gap the size of a dime — about 1/4 inch — to enter a structure. Norway rats require a hole roughly the size of a quarter. Roof rats are exceptional climbers and enter through rooflines, soffit gaps, and utility penetrations above the first floor. All three are active year-round, but Middle Tennessee sees a significant fall influx as temperatures drop and outdoor food sources diminish — rodents actively seek warmth and food inside homes and businesses.
Beyond the obvious disgust factor, rodents pose real structural and health risks. They gnaw constantly to keep their teeth worn down, chewing through wiring (a documented cause of house fires), PVC pipes, insulation, and even structural wood. Their droppings and urine contaminate food preparation surfaces and trigger allergic reactions. Hantavirus, salmonella, and leptospirosis are all rodent-associated diseases with documented cases in the Southeast.
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Signs You Have Rats or Mice
Rodents are largely nocturnal and stay hidden during the day — by the time you see one out in the open, you almost certainly have more than one. Watch for these signs.
Droppings
Mouse droppings are rice-grain-sized with pointed ends; rat droppings are larger — roughly the size and shape of a raisin. Fresh droppings are dark and moist; older ones are gray and chalky. Common locations include cabinet corners, behind appliances, along baseboards, and in pantry areas.
Gnaw Marks
Chewed corners on food packaging, gnaw marks on wood baseboards, chewed wiring insulation, and holes in walls or flooring are all signs of active rodents. Roof rats frequently chew through attic insulation and gable vents. Norway rats burrow and chew at ground level — under cabinets, along slab edges, and in crawlspaces.
Scratching Sounds
Nocturnal scratching, scurrying, or gnawing sounds inside walls, ceilings, or under floors — especially after the household goes quiet at night — are a strong indicator of active rodent movement. Roof rats are particularly audible in attic spaces. If you're hearing sounds overhead, the entry point is likely at the roofline.
Rub Marks & Nesting
Rats leave greasy gray rub marks along walls and pipes where their fur contacts surfaces repeatedly — a sign of an established run. Shredded insulation, paper, fabric, or plant material in hidden corners indicates nesting. Mouse nests are often found behind appliances, inside rarely opened cabinets, and in crawlspace insulation.
Why Snap Traps and Hardware-Store Bait Won't Solve the Problem
A snap trap in the pantry might catch the mouse you saw. It won't catch the seven you didn't see, and it does nothing to stop the next wave from entering. Rodent control that actually works has two phases: population reduction (trapping and baiting the animals already inside) and exclusion (physically sealing the gaps they're using to enter).
Most homeowners skip exclusion entirely, which is why the problem keeps coming back season after season. A Norway rat can flatten itself to pass through a gap the width of your thumb. Identifying every entry point — under doors, around utility penetrations, at soffit gaps, along the foundation — requires a thorough inspection and the right materials to seal them permanently. Without exclusion, you're just running a catch-and-release program on the rodents that live in your yard.
How Tall Paul Controls Rodents
Inspection first. Exclusion second. Population reduction third. In that order — because doing it backward is why most rodent programs fail.
Full-Property Inspection
We inspect the home's exterior from foundation to roofline — identifying every potential entry point, evidence of active activity (fresh droppings, rub marks, chew damage), and conditions that attract rodents (food sources, harborage, standing water). We check the crawlspace and attic when access is available, since those are the spaces where infestations establish and go unnoticed the longest. You receive a written findings report before any work begins.
Exclusion — Sealing Entry Points
Exclusion is the permanent solution. We seal gaps, cracks, and openings with materials rodents cannot chew through — galvanized hardware cloth, copper mesh, and appropriate caulks and sealants at foundation penetrations, pipe entries, vent openings, and construction gaps. Exclusion work is documented with before-and-after photos. Without it, no amount of trapping will produce lasting results.
Baiting & Trapping
Once entry points are sealed, we address the population already inside with a combination of strategically placed tamper-resistant bait stations and snap traps. Station placement follows rodent behavior — along walls, at known runs, near food and water sources. Interior snap traps are placed in areas inaccessible to children and pets. We schedule follow-up visits to monitor activity, collect catch data, and adjust placement as needed.
Crawlspace & Attic Checks
Crawlspaces and attics are the most common undetected harborage areas for rodents in Middle Tennessee. As part of our rodent service, we inspect and treat these spaces — checking for nesting material, active evidence, and structural damage. Vapor barrier damage from rodent activity is documented. We can coordinate follow-up visits timed to fall entry season to intercept new pressure before it establishes indoors. See our Quarterly Plan →
Related Pests We Treat
Rodents often share a structure with other pests. Where there are rodents, there are frequently cockroaches, spiders, and other opportunistic insects feeding on the same food sources.
Frequently Asked Questions
Straight answers to the questions we hear most often about rodent control in Middle Tennessee.
The most common entry points we find in Middle Tennessee homes are gaps around plumbing penetrations through the foundation, unsealed crawlspace vents, gaps at the junction of siding and foundation, garage door weatherstripping that doesn't fully seal, and roofline gaps at soffit returns and gable vents. Older homes — particularly those built before the 1980s — frequently have construction gaps that were never sealed. Seasonal temperature drops drive rodents actively to seek entry points that may have existed for years without being used.
All exterior bait stations we use are tamper-resistant, EPA-registered designs that require a key or tool to open — children and most pets cannot access the bait inside. We place interior traps and stations in locations that are inaccessible to children and non-target animals: inside walls using bait station entry ports, under heavy appliances, and in crawlspace or attic spaces not frequented by pets. We review placement specifics with you at the time of service and adjust based on your household situation.
With a combination of exclusion and active trapping, most homeowners see a dramatic reduction in activity within 1 to 2 weeks. Full elimination of an established indoor population typically takes 2 to 4 weeks, depending on the size of the infestation and the number of active entry points. Exclusion work — done properly — stops new rodents from entering, so the population inside decreases steadily without being replenished. Follow-up visits allow us to confirm activity is declining and remove any remaining individuals.
Yes. Crawlspaces are one of the most common and least monitored rodent harborage areas in Middle Tennessee homes. Rodents nesting in crawlspaces damage vapor barriers, insulation, and ductwork — and their presence attracts secondary pests including snakes. Even if you're not seeing rodents inside the living area, active crawlspace infestations can cause significant damage over time. If it's been more than a year since your crawlspace was inspected, call us at 629-899-2287 and we'll take a look.