A skirting board that suddenly sounds hollow, a door that begins sticking, or a thin line of mud running up a brick wall can be more than a maintenance issue. Knowing how to spot termite damage early gives you the best chance of limiting repair costs and protecting the structure of your home or business. Termites often work out of sight, so the signs are not always dramatic until significant damage has already occurred.
In Melbourne, subterranean termites are the main concern. They live in the soil and travel into buildings through concealed pathways, feeding on timber, cardboard and other cellulose-based materials. A clean, well-kept property is not immune. Termites are looking for food, moisture and a concealed way in, not mess.
How to spot termite damage around your property
Termite damage commonly appears in areas where timber meets the ground, moisture collects, or access is hidden by wall linings, cupboards, landscaping and stored materials. Start with a careful visual check around the outside of the building, then move indoors. Do not rely on one quick look. Small clues in several places can add up to a serious concern.
Look for mud tubes on walls and foundations
Subterranean termites build narrow shelter tubes from soil, saliva and timber particles. These brown or grey mud-like tunnels protect them from dry air and predators as they move between the ground and their food source.
Check brickwork, concrete stumps, piers, subfloor areas, garage walls, service penetrations and the edges of paths or garden beds against the home. Tubes can be as thin as a pencil or wider where activity is established. They may run vertically up a wall, across a foundation, or behind pipes and stored items.
Do not simply knock a tube down and assume the problem has gone. A damaged tube may be rebuilt, and breaking it can make professional assessment harder. Take a clear photo, avoid disturbing the area further and arrange an inspection.
Test timber that feels or sounds hollow
Termites usually consume timber from the inside out, leaving a thin outer surface that can look almost normal. Tap exposed timber around door frames, window frames, skirting boards, architraves, built-in cupboards, floorboards and timber posts. A papery or hollow sound can be a warning sign.
Wood affected by termites may also feel soft or crush easily under light pressure. In more advanced cases, you may see rippling, blistering or a maze-like pattern beneath paint. Never force a screwdriver into suspected structural timber. It can cause further damage and does not tell you how far the activity extends.
Check for paint bubbles and distorted surfaces
Bubbling paint or raised patches on a wall can look like water damage, and sometimes it is. However, termites feeding close to the surface can also create moisture and changes beneath paint that make it blister or peel.
Pay particular attention to walls near bathrooms, laundries, kitchens and external doors, where moisture issues and concealed termite access are both more likely. If paint damage appears alongside hollow timber, mud tubes or a sticking door, treat it as urgent rather than cosmetic.
Notice doors, windows and floors that change suddenly
Termite activity can weaken door jambs, window frames and floor supports. This may make doors or windows difficult to open and close, even when there has been no obvious change in weather. Timber floors can feel bouncy, sagging or uneven, while tiles may crack as the surface beneath them moves.
These symptoms are not proof of termites. Seasonal expansion, foundation movement and moisture can cause similar problems. The key is a sudden change, particularly when it occurs with other signs of timber damage. A professional inspection can separate a termite issue from an ordinary building repair.
Watch for termite wings and swarming insects
During warmer, humid conditions, mature termite colonies may release winged reproductive termites, often called swarmers or alates. You might see them near lights, windowsills or doors, or find a pile of discarded wings after the insects have flown.
Flying ants can look similar, so do not rely on wings alone. Termite wings are usually equal in length and similar in shape, while ants have a narrow waist and bent antennae. Either way, a sudden indoor swarm or a collection of matching wings is worth investigating promptly.
Signs that are easy to miss
The earliest evidence is often concealed. A quiet inspection of the right places can reveal problems before timber becomes visibly damaged. Check under sinks, behind appliances where practical, inside cupboards on external walls, in roof voids and around hot water systems. Focus on areas with plumbing leaks, poor drainage or limited ventilation.
Outside, keep an eye on timber sleepers, fence posts attached to the building, garden edging, untreated timber stored against walls and mulch piled high over weep holes. These conditions do not automatically cause termites, but they can provide food, moisture or a hidden bridge into the property.
For commercial premises, inspections should also cover storerooms, loading areas, utility rooms, false ceilings and timber packaging kept close to the building. A termite issue in a restaurant, school, warehouse or strata complex can disrupt operations well before the damage becomes visible to customers or tenants.
Termite damage versus rot, borers and moisture
Not every damaged piece of timber has termites. Timber rot often feels soft and crumbly, usually occurs where ongoing water exposure is obvious, and may be darker or stained. Wood borers leave small, clean exit holes and powdery dust. Termites generally leave timber looking layered or honeycombed, with soil or mud sometimes present in the galleries.
The difference matters because each issue needs a different response. Replacing a damp timber section without fixing the leak may lead to more rot. Treating borer holes as termites can lead to unnecessary work. Conversely, assuming termite damage is just moisture damage can allow a hidden colony to continue feeding.
A qualified termite technician uses more than visual clues. Thorough inspections may involve moisture readings, tapping, probing where appropriate and assessment of likely entry points. The goal is to identify active termites, old damage, contributing conditions and the most suitable treatment or monitoring plan.
What to do if you find suspected termite activity
Resist the urge to spray household insecticide, pull apart damaged timber or move the affected item outside. These actions can disturb the colony and drive termites into another concealed area, making treatment more difficult. They can also remove evidence needed to assess the activity properly.
Instead, leave the area as undisturbed as possible. Photograph mud tubes, wings or visible damage, make a note of where you found it and keep people away from weakened floors or timber. If the affected area is structural, such as a bearer, joist, stair or door frame, avoid loading it until it has been assessed.
Arrange a professional termite inspection as soon as possible. Active termite damage requires a treatment plan based on the building, the colony activity and access conditions. There is no one-size-fits-all product or method that suits every property. A proper assessment should also explain what repairs may be needed after treatment and what prevention measures can reduce the chance of a return.
Prevention is part of protecting the property
Regular termite inspections remain one of the most practical protections for Melbourne homes and businesses, especially where there is timber construction, nearby trees, moisture issues or a previous termite history. Your inspection frequency depends on the property and risk factors, but annual inspections are commonly recommended, with more frequent checks in higher-risk situations.
Between inspections, keep weep holes clear, direct water away from the building, repair leaks promptly and avoid storing timber, cardboard or garden materials against external walls. Make sure subfloor vents are not blocked, and keep gardens from concealing the lower edge of the building.
If you have found even one suspicious sign, do not wait for more obvious damage. Early action can protect your family, tenants, customers and the building itself. Quality Pest Control Melbourne can assess suspected termite activity, explain what is happening in plain language and help put a practical plan in place before a small hidden problem becomes a major repair.