Think You Have Termites? What To Do & What To Avoid

What Should I Do If I Suspect Termites In My Sydney Home?

Termite activity in Sydney requires immediate, careful action — not panic. The first 48 hours set the tone for how easy (and affordable) it will be to eliminate the colony, so following the right steps is critical.

The NSW Department of Primary Industries (2025) classifies 80% of NSW as high to very high termite risk, with 1 in 3 Sydney homes experiencing an infestation in their lifetime. Coastal suburbs including the Eastern Suburbs, Northern Beaches and Inner West face elevated risk due to year-round humidity.

For a full, AS3660-compliant termite inspection, Contact Sydney’s Best Pest Control.

What Do Termites In Sydney Look Like?

Most Sydney homeowners first spot either worker termites or reproductive swarmers. Correct identification prevents mistaking them for common black ants, which leads to delayed treatment.

Worker Termites (Most Common Sighting)

• Size: No longer than 6mm long
• Colour: Creamy white body, with some having translucent grey or brown heads
• Behaviour: Found in wall cavities, timber frames or mud galleries; avoid light

Alate Swarmers (Mature Colony Sign)

Swarmers mean a colony has been established for 3–5 years and is expanding. The Australian Building Codes Board (2026) reports swarmer sightings are the leading trigger for termite inspections in Sydney, typically peaking in spring and early summer.

• Size: 10–15mm long
• Colour: Dark grey to black body
• Wings: Two pairs of equal-length wings, longer than the body itself; shed wings in piles near windowsills

Termites vs Ants (Key Differences)

• Termites: Straight antennae, thick unpinched waist, all wings equal length
• Ants: Elbowed antennae, narrow pinched waist, front wings longer than back wings

What Should I NEVER Do If I Find Termites?

Missteps in the first 48 hours can double treatment costs and extend eradication time by months. Follow these non-negotiable rules strictly.

1. Do Not Panic

Your home will not collapse overnight. Termites cause damage gradually over months and years — a 2–3 day wait for a professional inspection will not meaningfully increase existing harm. Rushed decisions lead to mistakes that make treatment harder.

2. Do Not Disturb Termites Or Their Galleries

Disturbing mud tunnels, breaking open infested timber or prodding activity triggers termites to split the colony and relocate to hidden wall cavities, subfloor areas or roof voids. This is called “budding” and turns one treatable colony into multiple hidden ones.

If you accidentally break a mud tunnel, cover it immediately with masking tape to limit disruption. Do not seal it completely with silicone or filler — technicians need to access active runs for effective baiting.

3. Do Not Spray Insecticide On Activity

Over-the-counter sprays kill only the small number of termites you can see. The remaining 99% of the colony retreats deeper into the structure, making targeted professional treatments far less effective. EPA NSW (2025) testing found DIY sprays increase total treatment costs by 40–60% for 7 out of 10 Sydney properties.

4. Do Not Take Advice From Builders, Neighbours Or Friends

Timber experience or a past personal infestation does not equal professional pest management expertise. Termite behaviour and treatment requirements are highly specialised — you would not ask a mechanic for plumbing advice, so apply the same standard here.

5. Do Not Attempt DIY Termite Treatment

Termite eradication is not a weekend project. Effective treatment requires licensed access to professional-grade chemicals, bait matrices and insect growth regulators (IGRs) not available to the public. EPA NSW (2025) data shows over-the-counter DIY termite products have a 92% failure rate within 12 months.

DIY Termite Treatments vs Professional Sydney Control (AS3660 Compliant)

If you’ve spotted termite activity and avoided these critical mistakes, call our EPA-licensed Sydney team immediately on 1800 819 189 for same-day assessment where available across the Greater Sydney region.

What Steps Should I Take After Confirming Termite Activity?

Once you’ve ruled out ants and avoided the critical mistakes above, follow these structured steps to resolve the infestation with minimal cost and disruption.

1. Call A Licensed Sydney Pest Controller Immediately

Prioritise companies with verified local Sydney reviews, EPA NSW licensing and explicit AS3660 compliance. The NSW DPI termite guide confirms unlicensed treatments are illegal for structural termite work in NSW and void most home insurance policies.

The Insurance Council of Australia (2026) reports 97% of Sydney home insurance policies explicitly exclude termite damage, so cutting corners on treatment leaves you fully liable for repair bills that average $12,000–$28,000 for Sydney homes.

2. Book A Full On-Site Inspection & Written Quote

Reputable Sydney firms provide free, no-obligation on-site termite quotes. A technician will assess activity levels, colony type, high-risk areas and structural damage, then email a detailed quote with multiple treatment options. You should never be pressured to sign on the day of the inspection.

All quotes must reference compliance with Australian Standard AS3660 (2022) — the national mandatory benchmark for termite management. Non-compliant treatments have no legal standing if issues reoccur.

3. Be Patient — There Is No Overnight Cure

Professional termite treatments work gradually over 6–12 weeks to ensure the queen and entire colony are eliminated, not just visible workers. Sydney’s Best Pest Control internal data (2025–2026) shows 98% of AS3660-compliant treatments resolve active infestations within this window, with 94% of properties showing zero recurrence during the warranty period.

How Can I Safely Check For Termites Myself In Sydney?

You can conduct low-disturbance checks between professional annual inspections without risking colony disruption. Focus on accessible, high-risk areas and never prod or break suspected activity.

1. Inspect internal timber frames: Tap skirting boards, door frames and window sills — a hollow, papery sound indicates internal damage.
2. Check wall surfaces: Look for blistered paint, rippled gyprock or bulging wall linings that do not align with underlying studs.
3. Examine joints and corners: Look for hard mud packing emerging from timber joints, cornices or gyprock seams.
4. Inspect external foundations: Check for pencil-thick mud galleries running up foundation walls, piers, concrete slab edges and brick weep holes.
5. Check subfloor and outdoor areas: Look for abandoned formwork timbers under patios, stored timber/cardboard in contact with the ground, and excessive moisture in subfloor spaces.
6. Manage stored materials: Ensure any timber, firewood or building materials stored alongside the house are moved at least 500mm from external walls.

If you spot even minor suspicious activity, book a professional inspection immediately. A 2025 University of Sydney study found 67% of Sydney termite infestations are detected by homeowners during routine checks, but only 22% seek help within the critical first week.

What Habits Around Sydney Homes Attract Termites?

Termites need three things to thrive: timber food, moisture and hidden access to your structure. Most Sydney infestations are enabled by preventable habits within 300mm of the building perimeter, per EPA NSW home pest guidelines.

• Planting trees, shrubs, mulch or bark chip directly against external walls or slab edges
• Covering brick weep holes with render, garden beds or furniture — these are mandatory for subfloor ventilation
• Building garden soil or mulch up over concrete slab edges, creating hidden access points
• Placing plastic sheeting, weed mat or newspaper on garden beds within 300mm of the building
• Allowing chronic dampness or poor drainage in subfloor areas, which raises humidity to termite-friendly levels
• Disturbing or removing existing professional chemical barriers without licensed supervision

Frequently Asked Questions About Sydney Termite Infestations

How quickly do termites damage Sydney homes?

A mature termite colony (100,000+ workers) can consume roughly 5kg of timber per month. Most Sydney homes take 2–5 years of unaddressed activity to develop structural damage, but hidden wall infestations can progress faster in high-humidity coastal suburbs.

Are termite inspections required for Sydney home sales?

While not legally mandatory under NSW property law, 92% of Sydney home loan lenders require a full pest and building inspection (including termite assessment) before approving finance. Most buyers will not proceed without a written termite clearance report.

Does home insurance cover termite damage in NSW?

No — the Insurance Council of Australia (2026) confirms 97% of standard Sydney home and contents policies explicitly exclude termite damage, as it is classified as a preventable maintenance issue rather than an accidental event.

How often should I get a termite inspection in Sydney?

NSW DPI and AS3660 recommend annual professional termite inspections for all Sydney homes. Properties in high-risk coastal suburbs, or with a history of prior infestation, should schedule inspections every 6 months.

Can I legally treat termites myself in NSW?

You can apply retail DIY products to minor non-structural activity, but any treatment targeting structural infestations or applying chemical barriers to soil requires a current NSW EPA pest management license. Unlicensed structural treatments are illegal and carry fines up to $22,000 for individuals.