You notice a strange worn patch along the edge of the carpet. Perhaps there are tiny insects near a window, or small hairy larvae hiding beneath furniture. At first, it may look like ordinary wear and tear.
But the problem could be hiding somewhere you rarely look.
Carpet beetles are a common household pest found throughout Australia, and while the adult beetles themselves may seem harmless, their larvae can cause damage to carpets, clothing, furniture and other materials around the home.
Because carpet beetle larvae prefer dark, quiet and undisturbed areas, an infestation can develop unnoticed beneath furniture, along skirting boards and around the edges of carpets.
So, how do you know if carpet beetles have moved into your home?
What Are Carpet Beetles?
Carpet beetles are small beetles belonging to the Dermestidae family.
One of the biggest misconceptions about carpet beetles is that the adult beetles are responsible for damaging your carpet.
In reality, the larvae are the destructive stage.
Adult carpet beetles generally feed on pollen and nectar outdoors. Once eggs are laid and hatch, however, the larvae search for suitable organic material to feed on. Inside homes, this can include carpets, furniture, clothing, blankets and other fabrics.
The larvae also prefer to stay away from light, which is one of the reasons they can be so difficult for homeowners to spot.
While the carpet in the middle of your lounge may look perfectly fine, activity could be developing somewhere much less obvious.
Where Do Carpet Beetles Hide?
Carpet beetles don't necessarily establish themselves in areas that are easy to see.
They are commonly discovered in places such as:
- Along the edges of carpet
- Around skirting boards
- Beneath beds, couches and other furniture
- Inside wardrobes
- In quiet carpeted bedrooms
- In areas that are rarely disturbed or vacuumed
The Australian Museum notes that eggs laid indoors may be found in lint accumulations, beneath heavy furniture, behind skirting boards and close to suitable food sources. Larvae then tend to remain in dark, undisturbed areas while they develop.
This hidden behaviour is also why professional carpet beetle treatment often focuses heavily on carpet edges, perimeter areas, skirting boards and areas beneath furniture rather than simply spraying the visible surface of the carpet.
Signs of Carpet Beetles in Your Home
Carpet beetle activity isn't always immediately obvious, but there are several warning signs worth investigating.
1. Small Beetles Near Windows
Finding small adult beetles around windows or window sills can sometimes indicate carpet beetle activity elsewhere in the property.
Adult carpet beetles are attracted to light and may make their way towards windows after developing indoors. The Australian Museum specifically notes that finding beetles on window sills may be an indication of an infestation.
The important question isn't only "How did this beetle get here?"
It's also:
"Where did it come from?"
2. Small Hairy Larvae
Carpet beetle larvae look very different from adult beetles.
They are small, hairy grubs that may be found crawling around carpet edges, beneath furniture or in other protected areas.
If you find larvae, it is worth investigating rather than simply removing the one you can see. The visible larva may only be a small part of the activity occurring elsewhere in the room.
3. Damage Around Carpet Edges
One of the areas that deserves particular attention is the perimeter of a carpeted room.
Furniture often covers these areas for months or even years, creating a quiet environment where carpet beetle larvae can remain relatively undisturbed.
This is why moving a bed, couch or cabinet can sometimes reveal a problem that wasn't visible beforehand.
Our carpet beetle treatments specifically focus on affected carpeted areas, carpet edges, perimeter areas, skirting boards and locations where activity has been identified.
4. Activity Beneath Furniture
When was the last time you moved your bed, couch or heavy cabinet and inspected the carpet underneath?
For most people, the answer is probably "not recently."
Unfortunately, those undisturbed areas can provide exactly the type of environment carpet beetle larvae prefer.
If you've discovered carpet beetles in one part of a room, checking beneath nearby furniture and along the perimeter of the carpet can help establish whether the activity is more widespread.
5. Beetles or Larvae Appearing in Multiple Rooms
Finding repeated carpet beetle activity in several carpeted areas may indicate that the issue is no longer isolated.
Our technicians commonly ask customers where carpet beetles have been seen — whether that's in bedrooms, around skirting boards, beneath furniture, inside wardrobes or across several carpeted rooms — because the location and extent of the activity helps determine how the treatment should be approached.
Why Can Carpet Beetles Be Difficult to Treat?
The challenge with carpet beetles is often where they're living.
A quick surface treatment may reach exposed insects, but it may not adequately reach activity occurring around or beneath carpet edges.
In some cases, sections of carpet may need to be accessed so the areas underneath or along the edges can be properly treated.
That is also why access is so important.
Furniture in affected carpeted rooms should be moved wherever possible so technicians can reach the perimeter of the carpet and other areas where beetles may be harbouring.
Treating what you can see while ignoring where the pest is actually living can allow the problem to continue.
Can Vacuuming Help?
Yes — and regular vacuuming is an important part of reducing the conditions carpet beetles favour.
However, don't concentrate only on the open areas of your carpet.
Pay particular attention to:
- Carpet edges
- Beneath furniture
- Around skirting boards
- Wardrobes and cupboards
- Areas where lint, hair or debris accumulate
- Rooms or sections of carpet that are rarely disturbed
The Australian Museum recommends thorough and frequent vacuuming, with particular attention paid to carpet edges and areas covered by furniture.
Vacuuming can be an important preventative measure, but an established infestation may require targeted professional treatment.
What Happens During Professional Carpet Beetle Treatment?
A professional carpet beetle treatment isn't simply about spraying the centre of a room.
At Clean Carpets & Pest Control Perth, treatment is targeted towards the affected areas and may include carpet edges, perimeter areas, skirting boards and locations where carpet beetle activity has been identified. Depending on the situation, technicians may also need access beneath carpet edges.
Before treatment, customers should move furniture away from affected carpeted areas wherever possible. This provides better access to the edges and perimeter of the carpet, where treatment may be particularly important.
For our carpet beetle treatment, occupants and movable pets are also required to vacate the property for five hours following the treatment.
Don't Ignore the Areas You Can't See
A carpet can look clean on the surface while pest activity is taking place around its edges, beneath furniture or in other areas that rarely see daylight.
That's what makes carpet beetles particularly frustrating.
If you're repeatedly finding small beetles, hairy larvae or unexplained carpet and fabric damage, don't assume that removing the insects you can see has solved the problem.
The most important areas may be the ones you can't see.
Carpet Beetle Treatment in Perth
If you suspect carpet beetles are active in your home, Clean Carpets & Pest Control Perth can assess the affected areas and provide a targeted carpet beetle treatment.
Our treatments focus on the areas where carpet beetles commonly hide, helping significantly reduce activity throughout affected carpeted areas.
If you've noticed carpet beetles, larvae or suspicious activity around your carpets, get in touch with our team to discuss the situation and arrange a treatment.
Clean Carpets & Pest Control Perth
Professional carpet cleaning and pest control services throughout the greater Perth area.
References:
Australian Museum – Australian Carpet Beetles
Western Australian Museum – Carpet Beetle (Anthrenus sp.)
University of California Statewide Integrated Pest Management Program – Carpet Beetles
Department of Primary Industries and Regional Development, Western Australia – Carpet Beetles and Their Control
Article Author: Janus Oosthuizen
Original publication date: 9 September 2026