Silverfish control in Austin homes
For silverfish control in Austin homes, identify the pest, repair leaks, dry damp spaces and protect stored paper and food. Earwigs and pill bugs often wander in from damp outdoor cover. Firebrats favor heat and tolerate drier conditions, so check warm hiding places too. Persistent activity needs an inspection, not just more spray.
Austin Pest Control • October 5, 2026 • University extension guidance
Identify the pest before treating
Look at body shape, tail appendages and where the animal appeared. A clear photograph beside a size reference helps more than color alone. Use the identification photos in the linked extension sources; this guide's home photo is residential context, not a pest-identification image.
Silverfish are wingless, silver or pearly gray insects with a flattened, carrot-shaped body, long antennae and three thin tail-like appendages. Common silverfish are roughly half an inch long, sometimes longer. They dart into hiding and are mostly active at night. Bathrooms, laundry rooms, closets and bookcases are useful places to check.
Firebrats have the same tapered body and three tail-like appendages, but look mottled gray or brown. Heat is the useful clue. Texas A&M describes them near ovens, dryers and water heaters, with preferred temperatures above 90°F. Do not assume every silverfish-like insect came from a wet bathroom.
Earwigs are elongated, usually dark brown insects with a pair of noticeable pincers at the rear, rather than three delicate tails. Adults are often about half an inch to an inch long. They hide under debris or in crevices by day and forage at night. Avoid picking them up; the pincers can pinch.
Pill bugs, also called roly-polies, are gray, oval crustaceans with overlapping armored segments and seven pairs of legs. They can roll into a tight ball. Similar sowbugs do not roll into a ball and have two rear appendages. Both usually live outdoors in damp organic material, not in stored food.
Sources: Texas A&M AgriLife Extension, Silverfish and Firebrats (Wizzie Brown; original publication December 2009); UC Statewide IPM, Silverfish and Firebrats (updated December 2009); University of Florida IFAS Extension, Pillbugs, Sowbugs, Centipedes, Millipedes, and Earwigs
Why moisture brings pests close to home
Moisture provides favorable shelter, but these pests do not all behave alike. Common silverfish favor humid places. Plumbing drips, damp storage and poorly drying bathrooms can support them inside, while paper, glue, starches and household debris provide food. Reducing water without reducing hiding places and food may leave activity behind.
Pill bugs require high moisture and feed mainly on decaying organic matter. Earwigs also use protected outdoor hiding places, including mulched beds and debris. Damp cover beside a door or foundation can put outdoor populations near entry gaps. Finding a few indoors does not prove they are breeding inside; repeated arrivals can reflect conditions around the house.
Firebrats are the exception to a simple moisture explanation. UC IPM notes that they thrive in very warm places and can tolerate much lower humidity than common silverfish. Check warm appliance areas, pipe routes and attic hiding places as well as leaks. No source here establishes an Austin-wide outbreak or a local species ranking.
Sources: Texas A&M AgriLife Extension, Silverfish and Firebrats (Wizzie Brown; original publication December 2009); UC Statewide IPM, Silverfish and Firebrats (updated December 2009); University of Florida IFAS Extension, Pillbugs, Sowbugs, Centipedes, Millipedes, and Earwigs
What these sightings can mean
Silverfish and firebrats can scrape paper, book bindings, wallpaper and fabrics, and feed on starchy foods. Texas A&M notes that significant damage generally requires a large population over a long period. Look for irregular holes, ragged paper edges, scales or staining around stored belongings; these signs still need identification.
Earwigs and pill bugs indoors are usually nuisance visitors rather than pests that damage the house or furnishings. A single visitor can be removed with a vacuum or broom. Larger numbers call for checking outdoor shelter and entry points. Pest sightings alone do not diagnose a plumbing leak, mold problem or structural damage.
Sources: Texas A&M AgriLife Extension, Silverfish and Firebrats (Wizzie Brown; original publication December 2009); UC Statewide IPM, Silverfish and Firebrats (updated December 2009); University of Florida IFAS Extension, Pillbugs, Sowbugs, Centipedes, Millipedes, and Earwigs
Fix moisture and prevent repeat entry
Start with the source of the conditions, then track whether sightings decline. The following steps combine extension guidance on moisture reduction, sanitation, storage and exclusion. Avoid treating every room before you know which pest you have.
- Map the activity. Note the room, date, approximate number and nearby conditions. Photograph the pest when practical. Check bathroom edges, under sinks, laundry areas and stored paper; include warm appliance areas if it resembles a firebrat.
- Repair water sources. Check accessible plumbing for drips and damp surfaces. Have a plumber or appropriate repair professional address leaks you cannot fix safely. Dry wet materials and correct the cause rather than relying on insecticide to compensate for ongoing water.
- Improve drying. Use working bathroom ventilation and address persistent dampness in enclosed storage. Air conditioning, fans or a suitable dehumidifier can reduce humidity that supports silverfish. Drying helps, but it is not a guaranteed stand-alone solution, especially for heat-loving firebrats.
- Remove food and shelter. Vacuum dust, dead insects and spilled food along accessible edges. Reduce unused paper and cardboard, inspect long-stored fabrics, and keep books or vulnerable belongings in sealed plastic containers when appropriate. Store dry food in containers with tight lids.
- Reduce damp outdoor cover. Remove accumulated leaves, grass clippings, boards and decaying debris close to entrances. Keep compost away from the house and avoid piling wet mulch against it. Check potted plants for hitchhikers before bringing them inside. Do not eliminate every pill bug or earwig from the yard; focus on conditions beside the home.
- Close practical entry gaps. Repair door weather stripping and seal appropriate cracks and gaps around pipe penetrations. Do not block required drainage, ventilation or equipment access. Have difficult structural or utility openings assessed rather than reaching into unsafe spaces.
- Remove visitors and monitor. Vacuum or sweep up occasional earwigs and pill bugs. For silverfish-like insects, sticky monitoring traps along accessible edges can help locate recurring activity; keep them out of reach of children and pets. Record sightings in the same places after repairs and cleanup.
Sources: Texas A&M AgriLife Extension, Silverfish and Firebrats (Wizzie Brown; original publication December 2009); UC Statewide IPM, Silverfish and Firebrats (updated December 2009); University of Florida IFAS Extension, Pillbugs, Sowbugs, Centipedes, Millipedes, and Earwigs
When to call Austin Pest Control
Request an inspection when silverfish or firebrats keep appearing after moisture and storage improvements, when books or fabrics show ongoing damage, or when activity seems to come from inaccessible hiding places. Repeated earwig or pill bug arrivals also warrant checking the exterior conditions and entry routes rather than repeatedly spraying the insects you see.
Share where sightings occur, when they began, any photographs, and which repairs or cleanup steps you have tried. Austin Pest Control serves homes across Travis, Hays and Bastrop counties. Our Austin pest-control service page explains the inspection-led approach and property-specific options. A pest inspection does not replace plumbing or building repairs.
For an occasional insect, physical removal and prevention may be enough. If a pesticide is needed, use only a product labeled for the pest and location and follow its current label. Never use an outdoor-only product indoors. UC IPM does not recommend foggers for silverfish or firebrats; treating visible insects alone can miss hidden activity.
Sources: Texas A&M AgriLife Extension, Silverfish and Firebrats (Wizzie Brown; original publication December 2009); UC Statewide IPM, Silverfish and Firebrats (updated December 2009); University of Florida IFAS Extension, Pillbugs, Sowbugs, Centipedes, Millipedes, and Earwigs
Moisture pest questions
Why am I finding silverfish in my Austin bathroom?
Common silverfish favor humid shelter and may use cracks near damp bathrooms or laundry areas. Check for leaks, persistent dampness and nearby paper or debris. A sighting does not prove a hidden leak, so identify the insect and inspect the conditions before treating.
Are firebrats the same as silverfish?
No. They look similar and both have tapered bodies with three tail-like appendages. Common silverfish are silver or pearly gray; firebrats are mottled gray or brown and favor hotter places, such as areas near dryers, ovens or water heaters. Firebrats tolerate drier conditions than common silverfish.
Do silverfish come up through drains?
UC IPM explains that silverfish and firebrats do not crawl up through the drain. They can fall into a sink or bathtub and become trapped by its slippery sides. Check nearby hiding places and moisture instead of assuming the drain is their source.
Do earwigs and pill bugs damage homes?
University of Florida IFAS describes them as indoor nuisance visitors that do not damage the home or furnishings. Earwigs can pinch if handled. Repeated arrivals usually call for checking outdoor shelter, moisture and entry points; a few can be removed with a vacuum or broom.
Will a dehumidifier get rid of all moisture pests?
No. Lower humidity can discourage common silverfish, but it does not remove their food or hiding places. Earwigs and pill bugs may keep entering from outdoors, and firebrats can tolerate drier conditions. Combine drying with leak repair, cleanup, protected storage and entry-gap repairs.
When should I request a silverfish inspection?
Request an inspection for recurring activity after prevention steps, ongoing damage to stored paper or fabrics, uncertain identification, or suspected hiding places you cannot assess safely. Austin Pest Control can review the pest concern and property conditions; plumbing or building repairs may require a separate professional.
Sources and scope
Sources reviewed October 5, 2026. Texas A&M AgriLife and UC IPM's 2009 publications support identification, habitat differences, nonchemical prevention and escalation, not current pesticide products or rates. University of Florida IFAS supports earwig and pill bug identification, outdoor shelter and physical removal. These sources explain general biology, not Austin infestation counts or species rankings. Identification photographs are available in the linked sources; the home photograph provides residential context only. This guide is homeowner education, not pesticide application instructions or a diagnosis of a building's moisture problem.
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