The short version
Rodent control in Norfolk, Virginia, works best when it follows the Norfolk Health Department's approach: seal gaps, clear a weed-free strip at least three feet wide around the building, and space bait stations or traps every 15 to 30 feet for rats and 8 to 12 feet for mice. Norway rats are the main structural rat here, nesting low near floors and in foundation burrows.
- Norfolk Health Department says rats usually stay within 50 to 150 feet of the nest.
- When pressed, a rat will travel 1,300 feet or more in a day for food and water.
- Keep a weed-free perimeter at least three feet wide around buildings.
- Space inside stations every 15 to 30 feet for rats, 8 to 12 feet for mice.
- Virginia pesticide business licenses expire every March 31; ask to see a current one.
This page is for Norfolk homeowners seeing rats in the yard or hearing them in walls, renters who just moved in and found droppings, and landlords and property managers dealing with complaints across several units. It also helps restaurant and shop owners who need to understand bait station spacing and record keeping before hiring a provider.
What to look for
The Norfolk Health Department describes three structural rodents: the house mouse, the Norway rat and the roof rat. The Norway rat is the main concern for most homes. It weighs between 12 and 16 ounces, nests near floors and in burrows along foundations, and is better suited to colder weather than the roof rat. Roof rats prefer higher spots like attics and trees and favor seeds and fruit. House mice nest in walls, cabinets and storage. Rats in Norfolk typically stay within 50 to 150 feet of their nest, but the health department notes they will travel 1,300 feet or more in a day if they need food or water. Norfolk's conditions keep them supplied. Humidity averaging 72 percent and 47 inches of rain keep soil soft for burrowing, and low elevation means heavy rain floods burrows and pushes rats toward drier ground near buildings. Dense blocks put trash, food and shelter close together, and winter lows near 34F push rats into crawlspaces, garages and walls.
- 1Burrow openings along the foundation, under sheds or beneath shrubs, with smooth, packed edges.
- 2Rats moving along fences or walls at dusk, often on the same path every night.
- 3Dark droppings near garbage cans, in the garage or along the base of interior walls.
- 4Gnawed holes at the bottom of doors, in siding or around pipes entering the house.
- 5Grease marks along the bottom of walls or around openings where rats squeeze through.
- 6Food packaging soiled with urine or droppings, not just chewed.
Why it’s worth acting soon
- The Norfolk Health Department says rats destroy about ten times more food through urine and droppings than they eat.
- Burrows along foundations can undermine slabs, walkways and landscaping over time.
- Chewed wiring in walls, crawlspaces and garages creates fire and repair risks.
- Rats spread across a 50 to 150 foot territory, so one nest affects several yards.
- Leptospirosis and other rodent-borne diseases spread through urine in wet areas.
Treatment options and typical costs
Exclusion and sealing
Quoted after inspection
Gaps around pipes, vents, doors, siding and foundations are sealed with steel wool, hardware cloth, sheet metal or mortar. The CDC puts the mouse threshold at a quarter inch, roughly a pencil's width, and rats chew small holes larger. For Norfolk homes, foundation and crawlspace openings deserve special attention since Norway rats nest low.
- Time
- One to two days
- Best for
- Every home with ongoing activity
Bait stations at health department spacing
Quoted after inspection
The Norfolk Health Department recommends interior stations every 15 to 30 feet for rats and every 8 to 12 feet for mice, with exterior stations every 30 to 50 feet around the building perimeter. Stations should be locked and tamper resistant, especially around children and pets.
- Time
- Ongoing service
- Best for
- Properties with outdoor burrows and steady pressure
Trapping
Quoted after inspection
Snap traps placed along walls, in garages and in crawlspaces remove rodents already inside. Trapping shows exactly what was caught and avoids rodents dying in walls. Follow-up visits check and reset traps until catches stop.
- Time
- Two to four weeks
- Best for
- Rodents inside living areas or crawlspaces
Yard and perimeter cleanup
Quoted after inspection
The Norfolk Health Department recommends a weed-free strip at least three feet wide around buildings and storing wood and materials at least 6 inches off the ground. Clearing cover takes away hiding spots and makes burrows easy to spot. Some providers include this, others leave it to the owner.
- Time
- A few hours to a day
- Best for
- Yards with dense shrubs, weeds or stored materials
Prices are typical published ranges. Ask what’s included before you compare quotes.
Rats can travel plumbing, so a sink or floor drain with a missing strainer is worth fixing; a tight strainer or grate keeps them out.How far will a Norfolk rat travel for food?
A rat nesting under a shed two houses down may feed at your trash cans and drink from your birdbath. Trapping only in your yard can miss the nest entirely. That is why a good inspection looks beyond your foundation. Ask the provider to check the full perimeter and note likely nesting sites nearby, like sheds, woodpiles and dense shrubs. Talking with neighbors helps too, since cleanup and sealing on one property can push rats to another. The Norfolk Health Department says rats typically stay within 50 to 150 feet of their nest. That is roughly the distance from your back door to a neighbor's yard, or across a narrow alley. When food or water is scarce, rats will travel much farther. The health department notes they can cover 1,300 feet or more in a day if they need to. In a dense city like Norfolk, that territory overlaps a lot of property.
Where bait stations belong, by the numbers.
Stations should be locked and tamper resistant, placed along walls and runways where rodents travel, and kept out of reach of children and pets. If a provider places only one or two stations on a property with active burrows, ask why. If they place many stations but do not seal openings, ask about exclusion. Bait reduces numbers, but sealing keeps new rodents out. The health department's spacing is a useful baseline, not a ceiling. The Norfolk Health Department gives clear spacing for bait stations, and you can use it to judge a provider's plan. Inside buildings, stations go every 15 to 30 feet for rats and every 8 to 12 feet for mice. Mice stay closer to their nests, so stations need to be tighter. Outside, stations go every 30 to 50 feet around the building perimeter. On a typical Norfolk lot, that might mean several stations along the foundation and fence line.
A good inspection starts outside at ground level: door thresholds, the joint between siding and foundation, and anywhere a pipe or cable enters.Norway rat or roof rat: which one is in my Norfolk home?
Roof rats prefer higher areas like attics, trees and the upper parts of walls, and they favor seeds and fruit. If you hear noise overhead, or find droppings near a bird feeder or fruit tree, roof rats may be involved. The difference changes where a provider focuses. Norway rats call for foundation sealing, burrow work and ground-level stations. Roof rats call for roofline sealing and trimming branches away from the house. Some Norfolk properties have both. Both rats live in Norfolk, but the Norway rat is usually the main concern. The Norfolk Health Department notes it is better suited to colder weather than the roof rat, and winter lows near 34F favor it. Norway rats are heavier, weighing between 12 and 16 ounces. They nest near floors and in burrows along foundations, under sheds and beneath dense shrubs. You will see them at ground level: in garages, crawlspaces, basements and around trash.
Checking a Virginia pesticide business license.
Licensed businesses must also keep two years of application records. For a Norfolk restaurant or commercial property, that record keeping can matter for inspections. For a homeowner, it means you can ask what was applied and where. When you call a company, ask for the license number, proof of insurance and how they document treatments. A provider who answers clearly is more likely to run a careful job. Virginia regulates pest control businesses through the Virginia Department of Agriculture and Consumer Services, and a few details help you check a provider. A pesticide business license expires March 31 each year. If you are hiring in spring, ask whether the license has been renewed. VDACS requires licensed businesses to carry liability insurance of $100,000 for property damage and $300,000 per occurrence. Asking for proof of insurance is reasonable, especially for work involving ladders, crawlspaces or roof access.
Moving into a Norfolk rental: a rodent check before you unpack.
Walk the outside and look for burrows along the foundation and under shrubs. If you find signs, photograph them and report them to the landlord or property manager in writing right away. That creates a record and makes it clear the problem existed before you moved in. Ask whether the property has been treated recently and whether the plan includes sealing entry points, not just bait. Keep the three-foot weed-free strip and trash habits the health department recommends, which helps whether you rent or own. Norfolk has a large military community, and many households move in and out on orders and rent their homes. Move-in day is the easiest time to spot a rodent problem, before boxes cover the evidence. Before you unpack, check under sinks, behind the stove and refrigerator, in closets and along garage walls for droppings. Look at the bottom of doors and around pipes for gnaw marks.
What affects the price
- The number of foundation and crawlspace openings that need sealing.
- How many interior and exterior bait stations the property needs at health department spacing.
- Whether burrows need to be collapsed and filled along the foundation.
- Multi-unit buildings that require inspection of shared walls and several units.
- Commercial properties that need record keeping and more frequent service.
- How many follow-up visits are included for trapping or station checks.
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What's your biggest concern about rodents?
When to call for help
Call a professional if you see burrows along the foundation, rats in the yard during daylight, or droppings in more than one room. For Norfolk homes, a rat sighting in your yard may mean a nest within 50 to 150 feet, possibly on a neighbor's property, so a provider who inspects the whole perimeter helps. Commercial kitchens and multi-unit buildings should call early, since the health department's spacing guidance and record keeping matter more there. Also call if heavy rain seems to be pushing rats toward your foundation.
What you can do yourself
A homeowner can handle a lot of the Norfolk Health Department's advice without help. Clear weeds from a three-foot strip around the house, lift stored wood and materials at least 6 inches off the ground, keep trash in sealed bins, and seal small gaps with steel wool and caulk. For a couple of mice, snap traps along walls usually finish the job. Rats with burrows are harder. Norway rats nest along foundations, and getting rid of them means finding every burrow, sealing low entry points and trapping or baiting at the right spacing. Stations every 15 to 30 feet inside and 30 to 50 feet outside add up fast on a bigger property. A licensed provider can map the territory, place stations correctly and handle burrow work. For businesses, the record keeping alone can make professional service worth it.
Rodents in Norfolk
Norfolk is a coastal city of about 234,000 people, founded in 1682 and known for Naval Station Norfolk and NATO's Allied Command Transformation headquarters. Several local details matter for rodents. The city sits at about 10 feet of elevation with 47 inches of rain a year, so heavy storms can flood burrows and push Norway rats toward foundations and garages. Humidity averaging 72 percent keeps soil soft and wood damp. Winter lows near 34F push rats and mice indoors without killing them, and summer highs near 87F keep them active outdoors. Urban density puts homes, restaurants and trash areas close together, which fits the 50 to 150 foot territories rats keep. A large military community means many households move in and out regularly and many rent, which makes a rodent check during move-in a smart habit. With a median home value around $255,000, sealing a house is a modest investment.
Local research
Rodents in Norfolk, VA: what the public record shows
Before you compare quotes, it helps to know which rodents actually live in Virginia, when they are busiest around Norfolk, and what the state figures look like. Everything below links to the agency or university page it came from.
Norway rat weight
Rats destroy approximately ten times more food through urination and defecation than they actually eat.
Virginia Department of HealthRodent species recorded in Virginia
- 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 Norfolk
Year-round; fall peak. Pacific Northwest: roof and Norway rats plus deer mice statewide in Washington.
Based on Norfolk’s humid subtropical climate profile.
VDH Norfolk describes the house mouse, Norway rat (nests near floors and in foundation burrows) and roof rat (elevated areas, prefers seeds and fruit); the Norway rat is better suited to colder climates than the roof rat.
Rules that apply in Virginia
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: Virginia Department of Health; 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
- Keep a weed-free strip at least three feet wide around the house, as the health department recommends.
- Store firewood, lumber and materials at least 6 inches off the ground.
- Use trash cans with tight lids and keep them on a hard surface away from the house.
- Seal gaps around pipes, vents and foundation cracks with steel wool, mesh or mortar.
- Add door sweeps to garage and exterior doors where light shows underneath.
- Pick up fallen fruit and spilled birdseed, which attract roof rats.
- Check the foundation for new burrows after heavy rain.
- Talk with neighbors, since one rat nest can affect several yards.
After sealing, a few monitors or unset traps left along the walls tell you whether anything is still getting in before you hear it again.Did you know?
The Norfolk Health Department notes the Norway rat is better suited to colder climates than the roof rat.
Virginia requires licensed pest control businesses to keep two years of pesticide application records.
U.S. states reported 21 leptospirosis cases through early 2026, and the CDC counts rats as a key urban carrier.
Questions people ask
How far do rats travel in Norfolk?
The Norfolk Health Department says rats usually stay within 50 to 150 feet of their nest. If they need food or water, they will travel 1,300 feet or more in a day. That means the rat in your yard could be nesting next door, and controlling it may take cooperation with neighbors.
How far apart should rat bait stations be?
The Norfolk Health Department recommends interior stations every 15 to 30 feet for rats and every 8 to 12 feet for mice. Exterior stations go every 30 to 50 feet around the building perimeter. Stations should be locked and placed where children and pets cannot reach them.
Are Norway rats or roof rats more common in Norfolk?
Norway rats are the main structural rat for most Norfolk homes. The health department notes they are better suited to colder weather than roof rats and nest near floors and in foundation burrows.
How do I check a pest control company's license in Virginia?
Ask for the company's Virginia Department of Agriculture and Consumer Services pesticide business license. These licenses expire March 31 each year, so check that it is current. VDACS also requires liability insurance of $100,000 for property damage and $300,000 per occurrence, and two years of application records.
Why do rats ruin so much food?
The Norfolk Health Department says rats destroy about ten times more food through urine and droppings than they actually eat. That is why any food a rat has touched should be thrown out, and why pantry items should be stored in metal, glass or heavy plastic containers.
What should I do about rats after heavy rain?
At about 10 feet of elevation, Norfolk burrows flood quickly in heavy rain, and rats move toward drier ground near buildings. Walk the foundation after storms and look for new burrows or gnaw marks. Seal low openings and keep the three-foot weed-free strip clear so new activity is easy to spot.
Is it safe to clean up rat droppings myself?
Yes, if you follow CDC guidance. Ventilate for 30 minutes, spray droppings with a solution of 1.5 cups of bleach per gallon of water, wait 5 minutes, then wipe up with paper towels while wearing gloves. Never sweep or vacuum, since that can put particles into the air.
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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