Learn
Pest identification and prevention guides
Identify what you found, read the signs it leaves, and judge when to call a licensed company.
Just updated
Latest guides
The three most recently reviewed guides, newest first. Every guide carries the date it was last checked and the number of sources behind it.
IdentificationWhat Do Termites Look Like?
A termite colony contains three castes that look nothing alike, and the one homeowners usually see is the winged swarmer.
Updated 27 October 2026 · 3 sources
CostHow Much Does an Exterminator Cost?
A single exterminator visit runs about $171 nationally (This Old House), with service calls at $108 to $261 per visit (Angi).
Updated 7 October 2026 · 12 sources
- Cost
How Much Does Termite Treatment Cost?
Termite treatment runs $500 to $2,000 for a whole home liquid barrier, or $2,000 to $8,000 for fumigation. National estimates only.
Updated 7 October 2026 · 8 sources
The guides
Browse every guide
Every guide is below. Narrow them by what the guide helps you do, or by the pest you are actually dealing with.
- Identification
How to Identify Common House Pests
Four lookalike pairs account for most household pest misidentification: winged ants and termite swarmers, carpenter ants and termites, bed bugs and fleas, and mice and rats.
Updated 18 September 2026 · 3 sources
- Identification
Termite Warning Signs
Five pieces of physical evidence point to termite activity: mud tubes, discarded wings, hollow or blistered wood, hard six sided pellets and swarmers indoors.
Updated 18 September 2026 · 9 sources
- Identification
Signs of Wildlife in Your Attic
Attic noises, droppings and roofline damage together identify which animal is living above you.
Updated 18 September 2026 · 3 sources
- Identification
How to Check a Hotel Room for Bed Bugs
Bed bugs travel home in luggage, which makes the five minutes before you unpack the most useful five minutes of the trip.
Updated 18 September 2026 · 2 sources
- Prevention
How to Rodent-Proof Your Home
Rodents get in through a predictable set of openings: utility penetrations, garage door corners, weep holes, vents and the roofline.
Updated 18 September 2026 · 3 sources
PreventionHow to Reduce Mosquitoes in Your Yard
Most yard mosquitoes develop in small containers of standing water on your own property, which is why weekly emptying beats anything you can buy.
Updated 18 September 2026 · 3 sources
- Prevention
Pest Prevention Checklist
Four things keep pests out of a house: sealed entry points, controlled moisture, inaccessible food and no shelter against the walls.
Updated 18 September 2026 · 3 sources
PreventionSeasonal Pest Calendar: What Shows Up When
Pest activity across the US tracks temperature and moisture, which is why the same problems return in the same months.
Updated 18 September 2026 · 3 sources
- The service itself
What to Expect From a First Pest Control Visit
A first pest control visit usually runs 45 minutes to two hours and is mostly inspection rather than treatment.
Updated 18 September 2026 · 2 sources
- The service itself
How to Prepare Your Home for Pest Treatment
Preparation decides how well a pest treatment works, and what it involves differs sharply by pest.
Updated 18 September 2026 · 2 sources
- The service itself
Pest Control Safety With Pets and Children
Pest control around pets and children is managed through re-entry times, label instructions and careful bait placement rather than avoiding treatment altogether.
Updated 18 September 2026 · 3 sources
- Identification
What Do Termites Look Like?
A termite colony contains three castes that look nothing alike, and the one homeowners usually see is the winged swarmer. This guide covers what each caste looks like, the three features that...
Updated 27 October 2026 · 3 sources
- Cost
How Much Does an Exterminator Cost?
A single exterminator visit runs about $171 nationally (This Old House), with service calls at $108 to $261 per visit (Angi). Costs by pest, home size and plan.
Updated 7 October 2026 · 12 sources
- Cost
How Much Does Termite Treatment Cost?
Termite treatment runs $500 to $2,000 for a whole home liquid barrier, $3 to $16 per linear foot, or $2,000 to $8,000 for fumigation. National estimates only.
Updated 7 October 2026 · 8 sources
- Cost
How Much Does Bed Bug Treatment Cost?
Bed bug treatment runs $250 to $800 per room and $1,500 to $6,000 for a whole home program of two to four visits. Heat, chemical and fumigation compared.
Updated 7 October 2026 · 7 sources
- Cost
How Much Does Rodent Removal Cost?
Rodent removal averages $395 per job nationally (HomeAdvisor), mice run $150 to $550 (This Old House), and exclusion is $200 to $600 as a separate job.
Updated 7 October 2026 · 10 sources
- Cost
How Much Does Mosquito Control Cost?
Mosquito control runs $75 to $350 per treatment or $350 to $700 for a season of six to eight visits. Misting systems cost $1,200 to $3,600 to install.
Updated 7 October 2026 · 7 sources
- Cost
Monthly vs Quarterly Pest Control: Which Should You Choose?
Monthly pest control runs $40 to $75 a visit and quarterly $100 to $300, both about $300 to $900 a year (HomeGuide). Climate and pressure decide which fits.
Updated 7 October 2026 · 9 sources
In one paragraph
How do I identify a pest in my home?
Start with what you can see, the size, color and shape of the insect or animal, then read the signs around it such as droppings, damage, shed skins or noise. The PestChief guides narrow that to a pest group. The local company that visits confirms the species before any treatment.
How to use them
How should I use these guides?
These are plain guides on identifying what you have found, reading the signs it leaves, and working out whether the job is worth handing to a local pest control company. Each one is written for a homeowner standing in front of the problem, not for a technician.
These guides are general information. They are not a diagnosis, and they are not a treatment plan for a specific property.
If a guide does not settle it, the AI tools for homeowners are another way to work through what you are looking at.
By email
Seasonal pest guides by email
A short email at the start of each season, covering which pests are active in that window and what tends to work while the window is still open.
You can unsubscribe from any email. The privacy policy covers how the address is handled.
Related reading
- Pest control by pest type, and what coverage actually means.
- Cost guides, with every figure stating its basis.
- Seasonal pest calendar, and why timing changes the price.
Two passes
How do I use a guide before calling a company?
Work in two passes. First narrow the group from what you can see: the size, color and shape of the insect or animal. Then read the signs around it, such as droppings, damage, shed skins, sawdust or noise inside a wall. The two together usually land you on a group, which is enough to ask for the right kind of company.
You do not need a species to request a match. PestChief matches on the pest group and the ZIP code, and the independent local pest control company that visits confirms the species on site before any treatment. Getting the group right matters because it decides which license that company needs.
Limits
What these guides will not do
They will not diagnose a property, and they are not a treatment plan. PestChief does not inspect homes, does not spray, trap or treat anything, and does not sell products. Anything involving a bite, a sting or a health concern is a question for a medical professional rather than for a pest guide.
Common questions about the pest guides
Do I need to identify the pest before contacting PestChief?
No. PestChief matches on the pest group and the ZIP code, so narrowing it to ants, rodents or bed bugs is enough. The independent local pest control company that visits confirms the species before any treatment begins.
Can PestChief identify a pest from a photo?
No. PestChief does not identify pests and does not inspect properties. The guides describe what common house pests look like and the signs they leave, and the local company that visits makes the identification on site.
Are these guides a substitute for an inspection?
No. They are general information written for homeowners. They are not a diagnosis and not a treatment plan for a specific property, and a licensed company still has to inspect before it can say what the problem is.
What should I do about a bite or a sting?
Treat it as a medical question. A bite cannot reliably tell you which insect caused it, because reactions differ from person to person and many bites look alike. If a bite or sting concerns you, speak to a medical professional. PestChief gives no medical advice.
Do the guides tell me how to treat the problem myself?
No. They cover identification, the signs an infestation leaves, prevention, and what to expect from a visit. They do not give treatment instructions, and PestChief does not perform or recommend any treatment.
How current are the guides?
Each guide carries a published date and a last updated date, and lists the sources it draws on, so you can judge how current it is before relying on it.
Where this information comes from
These guides draw on public guidance from the US Environmental Protection Agency, the Centers for Disease Control and Prevention, and land-grant university extension programs such as the UC Statewide IPM Program, Penn State Extension and Texas A&M AgriLife Extension. Every guide lists its own sources alongside its published and last updated dates.
The guides are general information, not a diagnosis and not a treatment plan for a specific property. For any medical concern, including a bite or a sting, speak to a medical professional. PestChief performs no pest control.
Keep reading
Where to go next
Pest control by pest type
What the work involves once you know which pest you are dealing with.
Read morePest control cost guides
National ranges for a single visit, a one time program and an annual plan.
Read moreCoverage by state and city
Check whether an independent company in the network works in your area.
Read moreNext step
Worked out what it is?
Tell us the pest and your ZIP code. It costs you nothing, one independent local pest control company gets the request, and that company contacts you directly.
Narrow the group. The company confirms the species.