The short version
Rodent control in Apex, North Carolina, comes down to sealing to a 1/4-inch standard, trapping along routes rats already use, and some patience: NC State Extension notes rats can avoid new traps for up to a week. Roof rats in attics and Norway rats at ground level stay active here all year, with a surge each fall.
- Apex homes see roof rats up high, Norway rats down low, and house mice in kitchens.
- NC State uses dropping size, 1/2 to 3/4 inch, to separate rats from mice.
- Young rats fit through 1/4 inch, so seal to that size rather than the adult 1/2 inch.
- A quiet first week of trapping is normal, because rats test new objects first.
- Air a space out for 30 minutes before wetting droppings with bleach.
You'll get the most from this if you own or rent in Apex and you've heard something moving overhead at night, found droppings in the garage or pantry, or watched a rat run along a fence or utility line. It also helps if you're buying a house in town and want to know what an attic and crawlspace check should include.
What to look for
Three rodents cause nearly all the trouble in Apex homes, and NC State Extension's guide to structure-invading rats covers two of them by name. The roof rat is a slim climber that nests in attics, upper wall voids, and dense vegetation, reaching your house along tree limbs, vines, and utility lines. The Norway rat is heavier and stays low, burrowing under slabs, decks, and shrubs and coming up through crawlspaces. The house mouse fills in the rest, mostly in kitchens, garages, and wall cavities. The climate gives them a long season. Summer highs average 89F, while winter lows sit around 30F, cold enough to push rodents toward heated space but not harsh enough to knock outdoor numbers back much. Apex gets about 46 inches of rain a year and averages 71% humidity, so water and thick plant cover are rarely in short supply. The result is rodent activity that never fully stops, with a clear jump in fall as nights cool and rats and mice look for a warm place to nest.
- 1Thumping or scurrying above the ceiling between dusk and midnight, when roof rats are busiest.
- 2Droppings 1/2 to 3/4 inch long in the attic, garage, or under a sink, which points to rats rather than mice.
- 3Dark, greasy rub marks along rafters, pipes, or the top edge of a wall.
- 4Chewed duct insulation, torn soffit screens, or gnawed corners on the garage door.
- 5Fresh burrow openings along the foundation, under the deck, or beneath shrubs.
- 6Fruit on a backyard tree hollowed out while it is still hanging.
- 7Pet food bowls emptied overnight or feed bags in the garage chewed open.
Why it’s worth acting soon
- NC State says one rat can leave 30 to 50 droppings a day, so contamination piles up quickly.
- Rats gnaw wiring and duct wrap in attics, raising fire risk and cooling costs through an 89F summer.
- Rat urine can carry leptospirosis, which affects both people and dogs.
- Juveniles squeeze through 1/4-inch gaps, so a small colony spreads to new parts of the house.
- Every extra month of nesting means more insulation to pull out and replace.
Treatment options and typical costs
Inspection and rodent-proofing
Quoted after inspection
A full look at the roofline, soffits, vents, crawlspace, garage, and utility penetrations, followed by sealing every gap down to 1/4 inch with hardware cloth, metal flashing, and steel wool under sealant. NC State's guidance makes the quarter-inch line the key, since young rats use openings that adults can't.
- Time
- Depends on the roofline and how many gaps turn up
- Best for
- Any home with rats or repeat mice
Snap traps and trap boxes on runways
Quoted after inspection
Traps placed along the beams, pipes, and walls rats already travel, sometimes pre-baited without being set so rats get used to them. Because NC State notes rats can avoid new objects for up to a week, a sound plan includes daily checks and patience through that first stretch.
- Time
- Until catches stop, with daily checks early on
- Best for
- Rats and mice already inside
Tamper-resistant exterior bait stations
Quoted after inspection
Locked stations along the outside walls and fence lines for Norway rats or heavy outdoor activity. They work best inside a plan that also seals and traps. Ask what product goes in them, how often they're serviced, and how they're anchored away from pets and children.
- Time
- Ongoing, with monthly or quarterly service
- Best for
- Norway rats burrowing in the yard
Attic cleanup and insulation replacement
Quoted after inspection
After the rats are gone, soiled insulation is removed, surfaces are disinfected using wet bleach methods, and new insulation goes in. It fits homes where rats nested for a season or longer, and it removes the odor trail that can lead new rodents back to the same spot.
- Time
- Set by how much insulation has to come out
- Best for
- Attics with long-term nesting
Prices are typical published ranges. Ask what’s included before you compare quotes.
Crawl spaces are where rats and mice get comfortable. Vent screens, the sill plate and any gap around pipes are worth a careful look.Roof rat or Norway rat: which one is in your Apex house?
Knowing which rat you have decides whether sealing should focus on the roofline or the foundation. Both leave droppings of about 1/2 to 3/4 inch, so where you find them matters more than their shape. They come up through crawlspace vents and gaps around plumbing. Look for burrow openings in soil along the foundation, at slab edges, or under shrubs and woodpiles. Norway rats are heavier and dig. They reach the roof along branches, vines, fences, and power lines, then slip in at soffits, gable vents, and roof returns. NC State Extension covers them alongside Norway rats in its guide to rats that invade buildings, and in a climate like Apex's, with winter lows near 30F, they stay active outdoors and in attics all year. Roof rats are slender, with tails longer than their bodies, and they climb well. Apex homes can have both at once. Activity in the crawlspace, garage, or under the deck usually means Norway rats. Noise above the ceiling usually means roof rats. Where you hear it tells you most of what you need to know.
Why do Apex rats avoid new traps for a week?
That answer tells you more than the price does. Ask how many visits fall in the first two weeks and what they'll change if catches are still low by day ten. A plan that talks about results in two days doesn't match how rats behave. This should shape what you expect from a provider, too. Shifting a trap resets that rat's caution. Check traps daily, but leave them where they are. Some providers pre-bait traps without setting them for several days so rats get comfortable feeding there, then set them all on the same night. Rub marks and droppings show you those paths. Put traps directly on the paths rats use: along attic rafters, flush against walls, beside pipes, and at the edge of burrow openings outside. A few habits help. NC State Extension notes it can take up to a week before rats start approaching fresh traps, which is why many Apex homeowners decide traps don't work right before they would have. Rats distrust anything new on a route they already know.
A good inspection starts outside at ground level: door thresholds, the joint between siding and foundation, and anywhere a pipe or cable enters.Rodents in Apex, season by season.
September through November: The fall surge. Fruit trees, gardens, and bird feeders are a major draw, and thick summer growth gives rats cover right up to the foundation. June through August: Highs near 89F and humidity around 71% keep everything green. Since juveniles fit through 1/4-inch gaps, small openings matter most right now. March through May: Spring growth gives outdoor rats food and cover, and young from winter litters start looking for space of their own. This is when people notice overhead noise most, because the house is quiet and closed up. Rats and mice already inside attics, walls, and garages stay put and keep breeding. December through February: Lows average around 30F. Apex rodent activity never fully shuts off, but it shifts with the calendar. Sealing before September cuts off most of that traffic, which makes late summer the best time to have an Apex house checked. Cooler nights send rats and mice looking for warm nesting sites, and the attic and garage are the nearest options.
What should the first rodent inspection in an Apex home cover?
In a home near Apex's $525,000 median value, itemized sealing makes two quotes much easier to compare. Ask how they'll handle the week-long trap shyness NC State describes. You should leave with a written list of entry points, which species they believe is present and why, and a plan that splits sealing, trapping, and cleanup with a price for each. Garage and interior: door seals, the joint where the garage meets the house, the pantry, and under-sink cabinets. Ground level and crawlspace: burrows along the foundation, gaps around pipes and AC lines, the condition of vent screens, and the crawlspace door. Inside the attic, the inspector should note droppings, rub marks on rafters, nests in the insulation, and any chewed wiring or duct wrap. Roofline and attic: soffits, gable vents, roof returns, plumbing vent boots, and anywhere a limb or vine reaches the roof. A useful first visit in Apex covers three levels of the house, because roof rats, Norway rats, and house mice each favor a different one.
Cleaning up after rats in an Apex attic or garage.
Given the heat and the volume of material, that part is worth hiring out. Where rats nested in an attic for months, cleanup usually means pulling out soiled insulation, not just wiping surfaces. With 46 inches of rain a year in Apex, treat damp spots near droppings in a crawlspace or garage with the same care. The more relevant concern with rats is leptospirosis, which spreads through urine and which CDC lists among diseases rodents pass on directly. cases since 1993 west of the Mississippi, and the state didn't appear in the provisional 2025 count. CDC places 94% of U.S. Hantavirus is rare in North Carolina. Wear gloves, bag everything, and wash up afterward. CDC's version works out to 1.5 cups of bleach per gallon of water, left to soak for 5 minutes before you wipe up with paper towels. NC State's steps call for ventilating the space for at least 30 minutes, then coating the droppings with a 10 percent bleach solution. NC State Extension and CDC agree on this: wet them first. Never sweep or vacuum rodent droppings.
What affects the price
- How many openings sit along the roofline, soffits, and gable vents, since that means ladder work.
- Attic size and how much insulation is soiled, often the largest single line item.
- Whether rats, mice, or both are present, since rat jobs usually need more return visits.
- Crawlspace access and condition, including vent screens and the crawlspace door.
- Tree limbs or vines touching the roof that must be cut back for the sealing to hold.
- How many follow-up checks are included through the slow first week of trapping.
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What's your biggest concern about rodents?
When to call for help
Noise overhead is reason enough on its own, since attic work in Apex means ladders, roof edges, and a lot of summer heat. Call as well if droppings in the 1/2 to 3/4 inch range turn up anywhere, because rats need a broader plan than a few mousetraps. Other signs you've reached the end of DIY: two weeks of trapping without a drop in activity, no idea where they're getting in, or chewed wiring and duct insulation. A provider who checks the roofline and the crawlspace in the same visit will usually find what you missed.
What you can do yourself
Mice in a garage or kitchen are a fair DIY job. Snap traps, some steel wool, and careful sealing around pipes and the garage door will settle many Apex mouse problems. Rats change the math. Roof rats come in high, so the openings that matter are at soffits, roof returns, gable vents, and wherever branches touch shingles. Norway rats come in low, under slab edges and through crawlspace vents. Both are cautious, and NC State's point that they can ignore new traps for a week means many people give up right before the traps start working. A pro earns the fee by finding every gap at once, sealing it with material rats can't chew, and setting traps where the runways really are. You can save money on the follow-through yourself: trimming branches, clearing fallen fruit, and keeping pet food in sealed bins.
Rodents in Apex
That combination keeps vegetation thick and food easy to find, so rats never hit a lean season that thins them out. The median home value of about $525,000 matters too: attics full of ductwork, wiring, and insulation are exactly what roof rats damage, and putting them right is expensive. Around Apex, rodent work is closer to a year-round maintenance item than a once-a-year chore. Apex is a suburban town of about 71,000 people, founded in 1873 and known as the Peak of Good Living. It's also known for high growth. At 499 feet in elevation with a humid subtropical climate, Apex has long, hot summers averaging 89F and mild winters with lows near 30F, plus about 46 inches of rain spread across the year.
Local research
Rodents in Apex, NC: what the public record shows
Before you compare quotes, it helps to know which rodents actually live in North Carolina, when they are busiest around Apex, and what the state figures look like. Everything below links to the agency or university page it came from.
Droppings a rat leaves per day
Pellets run roughly 1/2 to 3/4 inch, which is how NC State separates rat activity from mouse activity.
NC State ExtensionGap size that admits rats
Seal to the quarter-inch standard or young rats still get in.
NC State ExtensionTime before rats start hitting new traps
Check traps daily; rats are wary of new objects in established runways.
NC State ExtensionRodent species recorded in North Carolina
- House mouse (Mus musculus) — Enters at 1/4 inch; 5-10 litters per year; eats about 200 small meals a night.
- Norway rat (Rattus norvegicus) — Burrowing rat of basements, sewers and ground floors; tail shorter than head plus body.
- Roof rat (Rattus rattus) — Climber of attics and trees in warm and coastal regions; tail longer than head plus body.
When rodents are busiest around Apex
Year-round, fall surge. Roof rats dominate Florida, Texas and Gulf Coast attics.
Based on Apex’s humid subtropical climate profile.
NC State's structure-invading rat guide covers both the Norway rat and the roof rat.
For context, nationally
- 1/4 inch (the width of a pencil) — Smallest gap a mouse can enter. CDC
- 890; 35% fatal; 94% west of the Mississippi — Hantavirus cases reported since 1993 (through 2023). CDC
Sources: NC State Extension; CDC; Pest Notes: House Mouse; Pest Notes: Rats. Figures are quoted as the source prints them. How we check our sources
Simple ways to keep rodents away
- Cut back tree limbs so none touch or hang over the roof.
- Pull ivy and other vines off exterior walls, since roof rats climb them to reach soffits.
- Seal gaps to 1/4 inch rather than 1/2 inch so young rats can't follow adults in.
- Cover crawlspace and gable vents with hardware cloth.
- Pick up fallen fruit, nuts, and spilled bird seed before dark.
- Keep pet food and feed in lidded metal or heavy plastic bins.
- Store firewood and lumber off the ground and away from the foundation.
A good rodent quote lists the inspection, the number of trapping visits, each opening to be sealed and the material for it, and any cleanup.Did you know?
A mouse can fit through an opening about the width of a pencil, roughly 1/4 inch.
Human plague cases in the U.S. range from 0 to 17 in a year and cluster in northern New Mexico, northern Arizona, southern Colorado, and the Far West.
CDC counts salmonellosis among the illnesses rodents spread directly, usually through droppings that reach food or kitchen surfaces.
Questions people ask
Are roof rats common in Apex?
Roof rats nest high, in attics and upper walls, and travel along trees, vines, and power lines. Noise overhead at night is usually the first clue. Yes. The roof rat is one of the two species NC State Extension covers in its guide to rats that invade North Carolina buildings, and Apex's mild winters suit it well.
Why won't the rats in my Apex attic go near my traps?
In an Apex attic, leave traps on the rafters and walls where you see droppings, pre-bait them unset for a few days if needed, and check daily. Moving them resets the clock. Rats are wary of anything new on their route. NC State notes they can take up to a week to start using a new trap.
How do I tell rat droppings from mouse droppings?
NC State puts rat droppings at roughly 1/2 to 3/4 inch, while mouse droppings are closer to a grain of rice. Around Apex, the big ones in an attic usually mean roof rats, and the big ones in a crawlspace or garage often mean Norway rats. Size settles it.
What size gap do I need to seal to keep rats out?
Adult rats need about 1/2 inch, but NC State points out juveniles fit through 1/4 inch, the same size CDC gives for mice. Around Apex houses, start with soffit gaps, AC line openings, crawlspace vents, and the corners of the garage door. Anything 1/4 inch or larger.
Is hantavirus a concern in North Carolina?
hantavirus cases from 1993 through 2023 west of the Mississippi, and North Carolina wasn't on the provisional 2025 list. Clean droppings wet anyway: NC State says to ventilate at least 30 minutes, then soak them with a 10 percent bleach solution. It's uncommon. CDC places 94% of the 890 U.S.
Do rats in Apex die off or leave in winter?
With winter lows averaging about 30F, Apex isn't cold enough to slow rats much outdoors, and the ones that moved inside stay active all season. Indoor activity usually climbs in fall as nights cool, then holds steady through spring as winter litters grow up. No.
What does rodent control cost in Apex?
The biggest swings come from how many openings need sealing, whether attic insulation has to be replaced, and how many follow-up visits are included. With Apex's median home value near $525,000, ask for sealing to be itemized so quotes compare cleanly. There's no published local price, so expect a quote after an inspection.
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Sources (6)
The facts in this article come from the public sources listed above. Every home is different, so ask the company you talk to about pricing and what’s included. Published by Rodent Exterminator · Updated October 11, 2026 · How we write these guides