There is no fixed price for treating a house for termites, because the cost is set by what the inspection finds. The termite activity, the treatment method, the construction of the house and access to the soil and subfloor all change the quote. The Queensland Building and Construction Commission's termite management guide warns that the cheapest method may not be the most appropriate one for a particular site, so a sound quote always follows an inspection.
Why does termite treatment cost vary so much?
Two houses on the same street can need very different work. One may have termites in a single doorframe, while the other has a colony moving through the subfloor. QBCC notes that most infestations start at the perimeter, often where garden beds, wood chips or attached pergolas and carports have bridged an existing termite management system. Each bridge adds treatment area, and that is where most of the price difference comes from.
What does a termite inspection include?
The inspection comes first because treatment cannot be priced without it. CSIRO's Managing Termites guide describes what inspectors look for: shelter tubes over stumps, ant caps and slab edges, joints packed with soil, hollow sounding timber, and damp areas around bathrooms, laundries and poorly drained paving. Professionals also use thermal cameras, movement detectors and bait stations to find hidden activity.
The written report should name the activity, the damage, the conditions that invite termites and the recommended treatment. CSIRO also notes that modern homes carry a notice, usually in the meter box, stating which termite management system was installed, and the inspector checks whether it is still intact.
A Bonnet Bay owner who finds a mud tube running up a brick pier under the house should leave it untouched and book a termite inspection in Bonnet Bay, so the report shows where the termites are entering before any treatment is priced.
Baiting, soil barrier or direct treatment: what is the difference?
Each method involves different labour and a different number of visits.
- Baiting: CSIRO explains that bait stations are placed against infested timber, active shelter tubes or in the soil around the building. Termites carry a slow-acting insecticide back to the nest and queen, and the stations are checked every few weeks, so the price covers repeat visits.
- Chemical soil barrier: a trench is dug around the slab or footings and backfilled with treated soil. Where paving or concrete covers the ground, holes are drilled so insecticide can be injected underneath. CSIRO says most insecticides give at least 3 to 5 years of protection.
- Direct treatment: insecticidal dust or foam is applied straight into active galleries so termites spread it through the colony. It only works where live termites are found.
In a Kareela home where live termites turn up behind a laundry skirting board, the active galleries are what a technician needs to work with, so arrange termite treatment in Kareela and keep the damaged timber closed up until it has been seen.
What changes the price of treating a house?
These details move a termite treatment quote up or down:
- Slab or subfloor: QBCC calls the area beneath a suspended floor one of a building's most susceptible areas, and says treatment there relies totally on access. Low clearance or no access panel adds time.
- Perimeter: a longer perimeter means more trenching, and paths, driveways or patios against the walls mean drilling instead of digging.
- Existing systems: QBCC explains that a reticulation system under the slab can be recharged from outside the building.
- Activity: one active point and a colony spread through several rooms are priced very differently.
- Split levels: QBCC notes that a chemical system alone may not be adequate for split level homes.
A Dolans Bay house on a sloping block with paved courtyards and a retaining wall behind it needs drilling through the paving, so termite control in Dolans Bay should be quoted only after the whole perimeter is inspected.
What does it cost to wait?
Delay usually costs more than treatment. QBCC states that termites cause millions of dollars in damage to timber in Australian homes each year, mostly out of sight inside walls and floors. CSIRO warns that disturbing termites, including with shop-bought products, can drive them away temporarily, and several control options rely on finding them active.
Insurance rarely softens the blow. Many home insurance policies exclude damage caused by pests such as termites, and Moneysmart advises checking the exclusions in the product disclosure statement. QBCC also warns that placing something like a water tank against a wall can breach the termite management system and void warranty and insurance entitlements.
When a Port Hacking family notices bubbling paint and soft timber along a door frame beside a built up garden bed, the damage may already reach inside the wall, so book urgent termite control in Port Hacking and leave the timber undisturbed.
How do you compare termite treatment quotes?
Compare what each quote covers, not only the total. A useful quote states:
- the treatment method and exactly which areas will be treated
- whether follow-up visits or bait station checks are included
- how long the product is expected to protect the house
- the inspection schedule after treatment, since QBCC recommends inspections at least every 12 months, or more often in high risk areas
- the conditions attached to any warranty
Check the licence too. The NSW EPA states that by law anyone carrying out prescribed pesticide work must hold a licence, and suggests asking to see the photo licence card and checking that its expiry date has not passed. A quote given over the phone without anyone looking at the house is a guess.
Before you book
Note where you have seen termites, mud tubes or damage, whether the house is on a slab or a subfloor, what covers the ground beside the walls, and any paperwork from earlier treatments, including the meter box notice. Photos help. Send those details when you contact our pest control company in the Sutherland Shire, and you will get a clear quote once the inspection shows what the house needs.