Brick homes often look strong, solid and difficult for pests to enter. This can give homeowners a false sense of security.
Termites do not eat bricks, concrete or mortar. However, they can enter through tiny gaps and reach the timber hidden inside a brick home. Once inside, they may damage wall frames, roof timbers, flooring, skirting boards, door frames and built-in cabinetry.
For homeowners in Newcastle, understanding how termites enter brick properties is essential for detecting activity before serious damage occurs.
No. Termites cannot consume bricks, concrete or mortar because these materials do not contain cellulose—the substance termites obtain from timber and other plant-based materials.
The real risk is what sits behind or around the brickwork.
Many Newcastle properties described as “brick homes” are brick veneer buildings. The external brick wall provides weather protection, while the internal timber frame supports important parts of the structure.
Termites can travel behind the brick veneer and reach this concealed timber without being immediately visible.
Even a double-brick property may contain vulnerable materials, including:
Therefore, a brick exterior does not make a home termite-proof.
Termites are capable of entering through extremely small openings. They generally travel from an underground nest to the building in search of moisture and cellulose-based materials.
Common access points in brick homes include:
Termites may also construct mud shelter tubes over concrete, brick or other non-food surfaces. These tubes protect them from dry air, light and predators while they travel towards timber.
Brick veneer construction is common across Australia. In these homes, the bricks are not usually the main structural frame. A timber frame is positioned behind the external layer of brickwork.
A narrow cavity separates the bricks from the frame. If termites enter this concealed space, they may travel upwards without being noticed from inside or outside the property.
They can then attack:
Because the damage is concealed behind plasterboard and brickwork, termite activity can continue for a considerable period before obvious warning signs appear.
| Part of the home | Can termites damage it? | Why it may be vulnerable |
|---|---|---|
| Bricks | No | Bricks do not provide a food source |
| Mortar | No | Termites do not eat mortar, but may use cracks as entry points |
| Concrete slab | No | Cracks and service gaps may provide concealed access |
| Timber wall frame | Yes | The frame contains cellulose and may be hidden behind brickwork |
| Roof timbers | Yes | Termites can travel through walls to reach the roof structure |
| Timber flooring | Yes | Flooring and supporting timbers can be attacked from below |
| Skirting boards | Yes | Damage may remain concealed behind paint |
| Plasterboard lining | Sometimes | Termites may feed on the paper covering |
| Cabinets and wardrobes | Yes | Engineered wood and timber products can contain cellulose |
| Metal framing | No | Metal is not a food source, but other materials inside the home may remain vulnerable |
Newcastle and the wider Hunter region contain established residential areas, newer developments and properties surrounded by gardens, trees and bushland.
Local conditions can create favourable environments for termites, particularly where moisture and timber are available near a building.
Risk factors around Newcastle homes may include:
Termites occur naturally in the Australian environment and play an important role in breaking down dead plant material. Problems begin when they gain access to timber within a building.
Termite activity is not always easy to identify. In many cases, the visible surface of the timber remains intact while the inside is damaged.
Newcastle homeowners should watch for the following signs.
Termites may build narrow mud tubes along brickwork, foundation walls, piers, pipes or inside subfloor spaces.
These tubes can be a sign that termites are travelling between the soil and the building.
Damaged timber may sound hollow when gently tapped because termites often consume it from the inside.
However, tapping timber is not a reliable substitute for a professional inspection.
Termite activity can affect the appearance of:
Paint may bubble or crack where termites have disturbed the material underneath.
Moisture and termite damage can cause timber frames to swell or change shape. A sticking door does not always indicate termites, but it should be investigated when accompanied by other signs.
Winged reproductive termites may emerge when environmental conditions are suitable. After landing, they shed their wings.
Small piles of matching wings near windows, doors or lights may indicate that termite colonies are active nearby.
Timber affected by termites may appear thin, brittle or layered. Applying pressure to suspected timber can cause further damage, so avoid breaking it open.
Cracks in plasterboard, cornices or painted surfaces can have many causes. In some cases, hidden termite damage to timber framing may contribute to movement.
Do not spray the termites with household insecticide or disturb the affected area.
Killing the termites you can see is unlikely to eliminate the colony. Disturbance may cause the surviving termites to retreat, change their route or become harder to locate.
Instead:
In NSW, commercial pesticide work must be performed by an appropriately licensed technician. Homeowners can use the NSW EPA public register to check a technician’s licence.
A termite inspection should cover more than the visibly damaged area. The technician may assess:
Depending on the property and accessibility, the inspector may use moisture meters, sounding tools or thermal imaging as supporting equipment.
These tools can help locate suspicious areas, but they do not replace the experience and judgement of a trained termite inspector.
There is no single treatment that is suitable for every property. The appropriate approach depends on the building design, termite species, access points, extent of activity and any existing protection system.
Possible management options include:
Monitoring and baiting stations may be installed around the property. When termites interact with the bait, they can transfer the active ingredient through the colony.
Stations require scheduled monitoring and maintenance.
A registered termiticide may be applied to suitable soil areas around or beneath the building to create a treated zone.
Installation can vary considerably between properties, especially where paving, concrete paths or extensions surround the home.
A technician may recommend a targeted treatment in an active area. This can help manage identified termite activity but may not provide complete protection for the entire building.
Physical systems can include stainless-steel mesh, graded stone barriers and termite-resistant construction components.
These systems are usually installed during construction or major renovation work.
Termite management is not a one-time task. Regular monitoring helps identify new activity, changes to the building and conditions that could increase the risk of entry.
The NSW Government advises that an effective termite-risk-management system should be supported by regular inspections.
No preventive measure can guarantee that termites will never enter a property. However, good maintenance can make entry easier to detect and remove conditions that attract termite activity.
Homeowners can reduce risk by:
Termite-resistant materials and barriers help manage risk, but they do not remove the need for inspections.
Weep holes allow moisture to drain and air to circulate within a brick cavity. Covering them with soil, mulch, concrete or garden materials can create problems and may conceal termite access.
If insects or rodents are entering through weep holes, seek professional advice about a suitable purpose-made solution. Do not permanently seal the openings without first obtaining appropriate building advice.
Newer homes may include a termite management system installed during construction. However, this does not mean the property is permanently protected.
The effectiveness of a system can be affected by:
Homeowners should locate the termite management notice, understand which system was installed and follow its inspection and maintenance requirements.
A standard building inspection may note visible termite damage, but it does not necessarily include a complete timber-pest assessment.
The NSW Government explains that a building inspection report may identify visible termite damage but does not cover whether termites or other timber-destroying pests are currently present.
Before purchasing a property, consider arranging a separate timber-pest inspection by a suitably qualified professional.
The report should provide information about:
Brick construction can make a home feel protected, but termites do not need to eat the exterior walls to cause damage. They only need a concealed route to the timber and cellulose-based materials inside.
Regular inspections, moisture control, clear slab edges and properly maintained termite management systems can help reduce the risk. If you notice mud tubes, damaged timber, discarded wings or unexplained changes inside your Newcastle home, arrange a professional termite inspection promptly.
Early detection can limit the extent of damage and provide more options for managing the problem.
Author Bio:
All Pest Control Newcastle is a local pest management team providing practical information to help homeowners understand, prevent and manage common pest problems. Our content covers termite risks, warning signs and preventive measures relevant to properties across Newcastle and the surrounding areas. We aim to give readers clear, useful guidance so they can make informed decisions about protecting their homes and arranging professional pest control when required.
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