Professional Silverfish Control in Kent
Silverfish in a Kent property are treated by GEM Services with a 4-stage process: inspection of damp areas, insecticidal treatment, humidity advice, monitoring. A single treatment visit is usually sufficient for silverfish. Treatment is carried out by a technician from a BPCA member company and quoted before anyone visits, and callouts peak in autumn and winter.
What you are dealing with: silverfish
Species we most often treat in Kent: Lepisma saccharina
Silverfish are small (10-12mm), wingless, silver-grey insects with a distinctive fish-like shape and movement. They are unusually long-lived for an insect. Females lay small clusters of eggs in cracks and crevices, and nymphs take several months to reach adulthood.
Silverfish are nocturnal and extremely fast-moving. They avoid light and hide in damp, dark crevices during the day. They are most active at night and are often spotted when you turn on a bathroom or kitchen light. They can survive for months without food.
Silverfish eat starchy materials: paper, wallpaper paste, book bindings, cardboard, cotton, and even dried food like flour and oats. They need consistently humid air and mild warmth. Bathrooms, kitchens, basements, and poorly ventilated spaces are their ideal habitat.
Where we usually find silverfish on a property
- ✓Behind bathroom tiles and under baths
- ✓Under kitchen sinks and around pipework
- ✓In cupboard voids and behind skirting boards
- ✓In bookcases and stored paper boxes
- ✓In damp basements and cellars
- ✓Behind wallpaper in humid rooms
Silverfish treatment at a glance
| Pest treated | Silverfish (Lepisma saccharina) |
|---|---|
| Peak season | Autumn and Winter |
| How long it takes | A single treatment visit is usually sufficient for silverfish. Reducing humidity prevents their return. Severe infestations in damp properties may need a follow-up. |
| Visits usually needed | 4-stage process, carried out over one or more visits depending on how far the problem has spread |
| How urgent | Not urgent. Worth booking alongside other work rather than on its own. |
| Response | Silverfish are not urgent and are usually booked within a week. We often address them alongside damp and ventilation advice. |
| Area covered | All of Kent, from our base in Ashford |
| Safety | Carried out by a technician from a BPCA member company, fully insured. We tell you which areas to keep children and pets out of, and for how long, before we start. |
| What it costs | Quoted before anyone visits, once we know three things: the pest, the size of the property, and how far the infestation has spread. Call 07400 372204 for a free, no-obligation quote. |
Signs you have silverfish
Catching the problem early decides how much of it there is to treat. These are what we look for on arrival, and what is worth checking before you call.
Fast-moving silver insects in bathrooms or kitchens
Silverfish dart away when you switch on the light. You will most often see them in bathrooms, under sinks, or in kitchen cupboards, wherever there is moisture.
Irregular holes or surface scraping on paper and wallpaper
Silverfish feed by scraping the surface of paper, leaving irregular holes, thin patches, and notched edges on books, documents, and wallpaper.
Yellow stains on fabrics and paper
Silverfish leave small yellow stains and tiny black pepper-like droppings on affected materials.
Shed skins in cupboards and drawers
Silverfish moult throughout their lives. Tiny, translucent shed skins in cupboards, drawers, and behind bathroom fittings indicate a population.
How we treat silverfish, step by step
Every job follows this sequence. What changes between properties is how long each stage takes, not the order.
- 1
Inspection of damp areas
We identify where silverfish are concentrated and assess humidity levels. The presence of silverfish often indicates an underlying damp or ventilation problem.
- 2
Insecticidal treatment
We apply a residual insecticidal dust or spray to harbourage areas: under baths, behind sinks, along skirting boards in bathrooms, and in cupboard voids. This kills silverfish on contact and remains effective for weeks.
- 3
Humidity advice
We advise on reducing humidity: improving ventilation, using extractor fans, fixing leaks, and reducing condensation. Silverfish cannot thrive in dry conditions.
- 4
Monitoring
Sticky traps in key areas help monitor whether the population has been eliminated or if there is ongoing activity.
How long it takesA single treatment visit is usually sufficient for silverfish. Reducing humidity prevents their return. Severe infestations in damp properties may need a follow-up.
What silverfish cost you if they are left
Silverfish damage books, documents, photographs, and wallpaper. While not a direct health risk, their presence usually signals a humidity or damp problem that should be addressed. Large populations in bathrooms and kitchens are unsettling.
Libraries, archives, and museums face damage to irreplaceable documents and collections. Commercial storage facilities with humidity issues can develop silverfish problems that affect paper-based stock.
Health risks
- ⚠Silverfish do not bite or transmit diseases
- ⚠They are a nuisance pest
- ⚠Their presence indicates humidity problems that may encourage mould growth, which is a health risk
Damage to the property
- ⚠Damage to books, documents, and photographs
- ⚠Surface damage to wallpaper and wallpaper paste
- ⚠Staining on fabrics and papers
- ⚠Indicates underlying damp issues that may cause wider problems
When silverfish problems peak in Kent
Silverfish are present year-round but are noticed more in autumn and winter when we spend more time indoors and humid conditions build up in poorly ventilated bathrooms and kitchens.
Keeping silverfish out after treatment
Treatment clears what is there now. These are what stop it coming back, and they are worth doing whether or not you use us.
- ✓Reduce humidity in bathrooms and kitchens. Use extractor fans, open windows, and fix any leaks.
- ✓Seal gaps around pipes and behind skirting boards where silverfish hide.
- ✓Store valuable papers, books, and photographs in sealed containers in dry conditions.
- ✓Ventilate cupboards under sinks. Leave doors open periodically to allow airflow.
- ✓Address any condensation or damp issues in the property. Silverfish cannot establish in dry, well-ventilated rooms.
When you do not need us
A single silverfish sighting outdoors, away from the building and with none of the signs above, is usually not an infestation and does not need a treatment. Work through the prevention points first and see whether the activity continues.
Call us when the signs are repeating rather than one-off, when you find them indoors, or when you have tried proofing and the activity has continued.
We also do not carry out structural repairs. We seal and proof the entry points we find, but where the fabric of the building needs rebuilding, that is a builder’s job and we will say so.
Silverfish Control across Kent
We provide rapid silverfish control response across Kent. Find your local area below.
Silverfish treatment: common questions
Are silverfish harmful?
Silverfish do not bite, sting, or transmit diseases. They are a nuisance pest that damages paper, wallpaper, and starchy materials. Their main significance is that they indicate a humidity problem in your home.
Why do I have silverfish in my bathroom?
Silverfish need high humidity to survive. Bathrooms provide the warm, damp conditions they thrive in. Poor ventilation, leaking pipes, and condensation all create an ideal silverfish habitat.
Can silverfish damage my books?
Yes. Silverfish eat the starch in paper, glue in book bindings, and even photographic prints. Valuable books and documents should be stored in dry, sealed conditions away from damp areas.
Will fixing the damp get rid of silverfish?
Bringing the humidity down makes conditions unsuitable for silverfish and they will die out or move on. Fixing damp and improving ventilation is the most effective long-term solution.
How long do silverfish live?
Silverfish are exceptionally long-lived for an insect. A population can persist in a damp property for a long time, even with low breeding rates.
Book silverfish control in Kent
Silverfish problems do not resolve on their own, and the longer an infestation runs the more of the property it reaches. A treatment booked this week costs less and takes fewer visits than the same problem left until next month.
Silverfish are not urgent and are usually booked within a week. We often address them alongside damp and ventilation advice.
A single treatment visit is usually sufficient for silverfish. Reducing humidity prevents their return. Severe infestations in damp properties may need a follow-up.
We cover the whole of Kent from our base in Ashford. Treatments are carried out by a technician from a BPCA member company, and we are fully insured.
The next step is a phone call.
Tell us what you have seen and where. We will tell you what treating it involves and what it will cost, before anyone visits.
Call 07400 372204Cannot talk right now? Send us the details instead and we will call you back.