Pest control guide
Pest Problems at Home: How to Identify, Treat, and Prevent Infestations
From ants and rodents to termites and bed bugs — know what you're dealing with, what treatment costs, and when to call a licensed pest control pro.
Pest identification and treatment effectiveness vary by species, region, and infestation severity. This guide is for educational purposes only. Always consult a licensed pest control technician for diagnosis and treatment of serious infestations.
Common Household Pests and What to Watch For
Urgency level is based on potential for structural damage, health risk, and how quickly infestations spread.
High urgency — call a pro promptly
Termites
Signs: Hollow-sounding wood, mud tubes on foundation walls, discarded wings near windows
Termites cause an estimated $5 billion in property damage annually in the US. Early detection is critical.
Rodents (mice & rats)
Signs: Droppings, gnaw marks, scratching sounds in walls, nesting material in hidden areas
Rodents can chew through electrical wiring and spread disease. A single pair can produce dozens of offspring in months.
Bed bugs
Signs: Small rust-colored stains on bedding, itchy bites in rows, tiny brown insects in mattress seams
Bed bugs spread rapidly and are extremely difficult to eliminate without professional heat or chemical treatment.
Cockroaches
Signs: Droppings resembling coffee grounds, egg casings, musty odour, sightings at night
Cockroaches trigger asthma and allergies and can contaminate food. German cockroach infestations require professional treatment.
Medium urgency — address soon
Ants
Signs: Trails leading to food sources, small dirt mounds near foundation, sawdust-like frass (carpenter ants)
Most ant species are nuisances, but carpenter ants excavate wood and can cause structural damage over time.
Wasps & hornets
Signs: Paper nests under eaves, in attics, or underground; increased wasp activity near one area
Nests near entry points or high-traffic areas should be removed by a professional to avoid stings.
Fleas & ticks
Signs: Pets scratching excessively, small jumping insects on carpet, red bites on ankles
Flea infestations require treating both the home and pets simultaneously for effective control.
Pest Control Treatments and Typical Costs
Costs vary by pest type, infestation severity, home size, and region. These ranges reflect typical US market rates as of 2026.
General pest inspection
$75–$200
Ant or cockroach treatment (single visit)
$100–$300
Rodent exclusion & trapping
$200–$600
Wasp or hornet nest removal
$100–$400
Flea treatment (whole home)
$150–$400
Bed bug treatment (heat or chemical)
$500–$2,000
Termite treatment (liquid barrier)
$500–$2,500
Termite treatment (bait system)
$800–$3,000+
* Always get written quotes from licensed pest control technicians for your specific situation.
Prevention Tips That Actually Work
Seal cracks and gaps around pipes, windows, and the foundation — even small openings let mice and insects in.
Store food (including pet food) in airtight containers and clean up crumbs and spills promptly.
Fix leaky pipes and eliminate standing water — moisture attracts cockroaches, ants, and mosquitoes.
Keep firewood, mulch, and debris away from the home's foundation — these are prime termite and rodent habitats.
Trim trees and shrubs so branches don't touch the roofline — this is a common entry point for rodents and ants.
Schedule annual termite inspections if you live in a high-risk region (Southeast, Southwest, coastal areas).
What You Can Handle vs. When to Call a Pro
DIY pest control works well for minor, isolated issues. Serious infestations — especially termites, bed bugs, and rodents — almost always require professional treatment to fully resolve.
Minor issues you can handle
- Ant bait stations for small, isolated ant trails
- Snap traps for one or two mice (not an active infestation)
- Wasp spray for small, accessible nests (at night, from a distance)
- Flea treatment on pets with vet-recommended products
- Preventive sealing and exclusion work around the home
Always call a licensed pro
- Any suspected termite activity — requires professional inspection and treatment
- Bed bug infestations — DIY products rarely penetrate all hiding spots
- Active rodent infestations — requires exclusion work, not just traps
- Large wasp or hornet nests, or nests inside walls
- Any pest issue in a rental property — landlord notification and licensed treatment required
Frequently Asked Questions
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