Every year, termites cause more damage to Australian homes than fires, floods, and storms combined. The earlier you detect the signs of termites, the less it costs to fix. Here are the warning signs every Brisbane homeowner needs to know.
If you notice any of these termite damage signs in your Brisbane home, do not ignore them. Early detection is the difference between a minor treatment and a major structural repair.
Mud tubes (also called shelter tubes or mud leads) are the most definitive sign of subterranean termite activity. These pencil-width tunnels are built from soil, moisture, and termite saliva, creating a protected highway between the colony in the ground and the timber in your home.
In Brisbane, you will most commonly find mud tubes running up external foundation walls, along plumbing penetrations, inside garage walls, and in subfloor areas. Coptotermes acinaciformis, the most destructive termite species in South East Queensland, builds mud tubes that are typically light brown and fragile when dry.
Check your home's external perimeter, especially along the base of walls, around plumbing pipes, behind garden beds pressed against the house, and inside any subfloor areas. Mud tubes are typically 5-10mm wide and follow vertical surfaces. Even old, dry tubes may indicate a current colony nearby.
Termites eat timber from the inside out, leaving a thin outer shell that looks perfectly normal on the surface. This is what makes white ants so dangerous in Australia: by the time you see visible damage, the structural integrity of the timber is already severely compromised.
When you tap on affected timber with a screwdriver handle or your knuckle, it will produce a dull, hollow, or papery sound instead of a solid thud. In severe cases, the timber may feel spongy or give way entirely under gentle pressure.
Tap along skirting boards, door frames, window frames, and any exposed timber beams. Compare the sound to timber you know is solid. Pay particular attention to timber that is close to the ground or near wet areas like bathrooms and laundries, as moisture attracts termite activity.
Doors and windows that suddenly become hard to open or close are one of the most commonly overlooked signs of termites. As termites consume the timber inside door and window frames, the moisture they produce causes the wood to swell and warp, changing the shape of the frame.
Many Brisbane homeowners dismiss this as seasonal movement caused by humidity changes. While timber does shift with Queensland's seasonal moisture levels, a sudden change concentrated in one area, particularly around doors near the ground or in older sections of the home, should be investigated.
Note which doors or windows are sticking and when the problem started. If multiple doors in the same area of the house are affected simultaneously, or if a door that has always operated smoothly suddenly becomes difficult, termite damage is a genuine possibility and warrants inspection.
When termites feed on timber beneath a painted surface, the moisture they introduce causes the paint to bubble, crack, or peel in ways that look like water damage. You may also notice uneven or rippled surfaces on walls that were previously smooth.
This occurs because termites create a warm, moist environment inside wall cavities as they feed. The moisture migrates outward, disrupting the paint surface. This is a particularly deceptive termite damage sign because it is so easily mistaken for a plumbing leak or poor ventilation.
Examine painted surfaces on skirting boards, architraves, and wall linings, particularly at lower levels. If the bubbling or cracking is localised and you cannot identify a plumbing or moisture source, termite activity may be the cause. Press gently on the area; if it gives way, call a professional immediately.
Each year, usually after warm rain events between October and February in Brisbane, mature termite colonies release thousands of winged reproductive termites (called alates) on colonising flights. After landing, they shed their wings and attempt to start new colonies.
Finding piles of tiny, translucent wings near windowsills, light fittings, or along the base of walls is a strong indicator that a mature termite colony exists nearby, either within your home or on a neighbouring property. A colonising flight means the colony is large enough to reproduce, which typically requires 3-5 years of maturity.
Check windowsills, cobwebs near lights, and along the base of external walls after warm, humid evenings. Termite wings are all the same length (unlike ant wings, which have two different sizes). If you find discarded wings, a colony is active within close range of your home.
Frass refers to the small, pellet-like droppings produced by drywood termites. While subterranean termites (the most common species in Brisbane) use their droppings in mud tube construction, drywood termites push their frass out of small kick-out holes in the timber they infest.
The result is small piles of what looks like fine sawdust or dark sand collecting below infested timber. Each pellet is roughly 1mm long and has a distinctive six-sided, ridged shape under magnification. While drywood termites are less common in Brisbane than subterranean species, they can still cause significant damage if left untreated.
Look for small accumulations of fine, granular material beneath timber fixtures, on windowsills, or along skirting boards. The colour varies depending on the timber being consumed, ranging from light tan to almost black. If you find frass alongside tiny holes in timber, contact a licensed technician for identification.
When termites attack the structural timbers that support your floors or ceilings, the affected areas begin to sag, buckle, or develop a noticeable dip. This is an advanced sign of termite damage that indicates significant structural compromise.
Floor damage may feel spongy underfoot, particularly in hallways and doorways where foot traffic concentrates stress on weakened bearers and joists. Ceiling damage may present as a visible droop or sag in plasterboard. Both situations represent a serious safety concern and require urgent assessment.
Walk slowly through your home and pay attention to any areas where the floor feels uneven, bouncy, or springy. Look upward for any visible sag in ceiling lines. If laminate or timber flooring has started to buckle for no apparent reason, termite damage to the subfloor structure may be responsible.
This is one of the most dangerous and least-known signs of termites. Termites are attracted to the warmth generated by electrical wiring and can chew through cable insulation, causing short circuits, tripped safety switches, and in extreme cases, electrical fires.
If you are experiencing unexplained power outages, frequently tripping safety switches, or intermittent electrical faults, particularly in older sections of your home where wiring runs through timber framing, termites may be the hidden cause.
Pay attention to recurring electrical faults in specific areas of the house. If an electrician cannot find a standard explanation for tripped circuits or damaged wiring, request a termite inspection. Termites in electrical systems are both a property and a safety risk that requires immediate professional attention.
Termites do not begin their attack at your front door. They typically establish themselves in the garden first, feeding on dead tree stumps, timber fence posts, retaining wall sleepers, garden edging, and landscape timbers before migrating toward the more substantial timber within your house.
In Brisbane's subtropical environment, untreated timber in contact with soil is an open invitation for termite colonies. A compromised tree stump within 50 metres of your home is a proven risk factor for house infestation.
Inspect timber fence posts, retaining walls, garden stakes, and any tree stumps in your yard. Kick the base of timber posts to test for hollowness. Check underneath any stored timber, firewood, or garden mulch piled against the house. If you find live termites in the garden, your home should be professionally inspected as a priority.
If your house is quiet, particularly at night, you may hear a faint clicking or rustling sound coming from inside your walls. This is caused by soldier termites head-banging against the timber to signal danger to the colony. Worker termites also produce audible noise as they chew through timber.
While this sign requires a quiet environment to detect, it is surprisingly common. Some homeowners describe it as a faint tapping, crackling, or the sound of paper being crumpled inside the wall cavity.
At night, turn off all appliances and press your ear against the wall in areas where you suspect activity. You may hear a rhythmic tapping or soft crunching. Soldier termites are known to bang their heads against wood when disturbed, so gently tapping the wall may trigger a response that you can hear.
Your first reaction matters. The wrong response can make termite treatment significantly harder and more expensive.
We cannot stress this enough. If you discover live termites, your natural instinct will be to destroy them, spray them, or rip open the affected area to see the extent of the damage. All of these actions make the problem worse.
When a termite colony is disturbed, the soldiers release pheromone signals that cause the workers to abandon the affected area and re-enter your home through a different, hidden pathway. This means a colony that was concentrated in one detectable area is now spread throughout your walls, making professional treatment more complex, more time-consuming, and more costly.
Professional termite treatments like baiting systems work by exploiting the colony's feeding patterns. If the colony has been disturbed and scattered, it can take significantly longer to achieve colony elimination.
South East Queensland is one of the highest termite risk zones in Australia, and the statistics are alarming.
Brisbane's subtropical climate provides the three things termites need to thrive: warmth, moisture, and timber. With average temperatures rarely dropping below 10 degrees and humidity levels consistently above 60%, termite colonies in South East Queensland remain active 365 days a year with no dormant winter period.
Queensland's housing stock compounds the risk. The majority of Brisbane homes, particularly those built before 2000, feature timber-frame construction with hardwood bearers, joists, and wall studs. Many older properties lack modern termite management systems entirely, relying on outdated chemical treatments that have long since degraded.
The most destructive species in our region, Coptotermes acinaciformis, builds massive underground colonies that can contain over one million individuals and forage across distances exceeding 100 metres. A single colony of this size can consume more than 5 kilograms of timber per day.
Describe what you have found over the phone, and our experienced termite technicians will advise you on the next steps. No pressure, no obligation. If an inspection is needed, we use thermal imaging and moisture detection to find every affected area.
Or call us directly at 1300 095 418 — Mon to Fri, 7am - 5pm
The earliest signs of termites include mud tubes on foundations or walls, hollow-sounding timber when tapped, doors and windows that suddenly become difficult to open, and small piles of discarded wings near windowsills. In Brisbane's subtropical climate, termite activity can escalate quickly, so any of these signs warrants an immediate professional termite inspection.
There is no difference."White ants" is simply the common Australian term for termites. Despite the name, termites are not ants at all. They are more closely related to cockroaches. Subterranean termites are the most destructive species in Queensland, with Coptotermes acinaciformis being the most commonly encountered species in Brisbane homes.
Termite workers are small (3-5mm), pale, and soft-bodied, so they are visible to the naked eye if exposed. However, termites avoid light and open air, meaning they typically remain hidden inside timber, underground, or within their mud tubes. This is why professional inspectors use thermal imaging cameras and moisture meters. Termites can cause extensive damage long before they become visible.
A mature Coptotermes colony of one million or more termites can consume over 5 kilograms of timber per day. In practical terms, this means significant structural damage can occur within 3 to 6 months of a colony establishing itself in your home. In Brisbane's warm, humid climate, colonies remain active year-round, making early detection critical. Learn more about inspection costs and why annual inspections are essential.
Absolutely not. Spraying termites with household insect spray like Mortein or Raid will only kill the small number you can see, while alerting the rest of the colony to move to a different part of your home. This makes professional termite treatment significantly more difficult and can increase the total damage. If you find termites, leave them undisturbed and call a licensed pest technician immediately.
A professional termite inspection in Brisbane typically costs around $300 for a standard residential property. At We Kill Termites, our inspections include thermal imaging, moisture detection, and a comprehensive report compliant with Australian Standard AS 4349.3. We also offer a free initial phone assessment. Call 1300 095 418 to discuss your concerns before booking.