Method Sheet / Trelona ATBSFile ref: TT-MX-003 / 2026

Section A / Cost Summary

Trelona ATBS Cost in 2026

By Oliver Wakefield-Smith, Founder, Digital Signet·Verified June 2026

Trelona ATBS bait station installation runs an estimated $1,300 to $3,400 for an average US home in 2026, with annual monitoring at $275 to $450 a year. The 10-year total on our model lands around $4,500 to $6,800. Its defining feature is a label that permits inspection just once a year, and a station that stays yours rather than being pulled if you cancel.

Install (est.)

$1,300-$3,400

Annual monitoring

$275-$450

10-yr total (est.)

$4,500-$6,800

Inspection label

1x per year

Product Registration

Trelona ATBS at a glance

  • 01Active: novaluron 0.50 percent in compressed cellulose bait
  • 02EPA Reg No. 499-557 (Trelona Compressed Termite Bait)
  • 03Manufacturer: BASF (ATBS = Advance Termite Bait System)
  • 04Annual line is active on install; label allows once-a-year inspection
  • 05Stations stay in the ground as your asset, not pulled on cancel

Section B / Why Trelona costs what it costs

Stations, service, and the once-a-year inspection label

A Trelona ATBS install carries the same two structural costs as any professional bait system: hardware and service. A standard install on an 1,800 to 2,200 sq ft home places roughly 12 to 20 in-ground stations at even spacing around the foundation perimeter, each in an augered hole flush with grade. The stations are durable plastic housings with locking caps and replaceable Trelona Compressed Termite Bait cartridges. The station count, the perimeter length, and the operator's regional rate are what move the install figure inside the estimated range above.

Service is the recurring cost, and it is where Trelona's label matters. The Trelona ATBS Annual Bait Stations label permits inspection as infrequently as once a year. A quarterly-serviced system implies four visits a year; a system an operator can service annually implies one required visit. Fewer mandatory visits can lower the labor an operator has to price into your annual monitoring contract, which is the mechanical reason Trelona is often quoted at or slightly below a quarterly-monitored competitor. In practice many operators still visit active accounts more than once a year, and your contract defines what you actually pay for, not the label minimum.

There is an ownership difference worth understanding because it changes the long-run economics. With Trelona ATBS the in-ground stations are treated as an asset that stays with the property; the homeowner (or the operator, on a professional account) keeps them, and refill cartridges are bought as needed. That contrasts with the market leader's service model, where stations are typically removed if the monitoring contract is cancelled. Neither is universally better: the asset model rewards a long-term resident, while the service model bundles hardware and labor into one recurring price.

The chemistry is the other piece. Novaluron is a chitin synthesis inhibitor in the benzoylphenyl urea class. A termite worker that has consumed novaluron cannot build new exoskeleton and dies when it next molts. Because workers molt continuously and because the colony depends on a living worker population to feed its reproductives and nymphs, the colony collapses over a period of months once enough workers have been exposed. It is the same mechanism of action, in a different molecule, as the noviflumuron used by Sentricon; the two products are close cousins rather than rival technologies.

Section C / 15-year lifecycle cost

Trelona ATBS cumulative cost (sample mid-range home)

This is our own model, not a quoted price. It assumes a 1,950 sq ft home with a $2,000 install and a $360 year-one monitoring contract, escalating at 4 percent a year. Monitoring rates are not contractually fixed; an operator may raise them year over year, so treat the tail as illustrative.

YearInstall lineMonitoring lineCumulative
Year 0 (install)$2,000-$2,000
Year 1-$360$2,360
Year 2-$374$2,734
Year 3-$389$3,123
Year 5-$421$3,949
Year 7-$455$4,842
Year 10-$512$6,319
Year 15-$623$9,204

Section D / Install day in detail

What a typical Trelona ATBS install looks like

Install day for a residential Trelona ATBS job is a few hours of on-site work. The technician walks the foundation perimeter, identifies station locations that avoid irrigation lines, utility runs, and the dense root zone under mature trees, and flags each spot. Stations go into augered holes roughly 8 to 10 inches deep, spaced evenly around the structure with extra concentration near corners, downspouts, hose bibs, and any tree within about 25 feet of the foundation, since trees are common foraging anchors.

Because this is the Annual line, each station is preloaded with active Trelona Compressed Termite Bait at install rather than holding a wood monitor first. The technician fits the locking cap with the station ID visible at grade, firms the soil back against the housing, and logs the install. Stations sit flush with the lawn so mowing and landscaping operate normally around them.

The follow-up schedule is the part that differs from a quarterly system. The label allows the next inspection to fall as much as a year out, though operators exercise judgment: an account showing active feeding is usually revisited sooner to replace consumed cartridges and concentrate bait where the foraging is heaviest. At each inspection the technician lifts every cap, checks each cartridge for consumption, replaces what has been eaten, and records the result for the homeowner.

The monitoring contract that pays for those visits is the recurring lever. It typically runs an estimated $275 to $450 a year for native subterranean coverage and more in Formosan zones. As with any bait bond, ask what the contract covers, how the rate escalates, and whether it transfers at home sale before you sign; the warranty is only worth what the contract terms say it is.

Section E / Trelona versus the alternatives

How Trelona ATBS compares to Sentricon and liquid Termidor

Sentricon Always Active (Corteva): the bait market leader, active ingredient noviflumuron, quarterly service model, stations typically pulled on cancellation. Our estimated Sentricon figures are $1,500 to $3,800 install and $300 to $500 a year. Trelona and Sentricon are the same class of product with near-identical mechanisms; the practical differences are Trelona's once-a-year inspection label, its asset-ownership model, and a price that usually sits at or a little below Sentricon. See the full Sentricon bait station cost breakdown for the direct comparison.

Advance Termite Bait System (BASF): the older sibling within the same ATBS family. The Advance station holds a wood monitor first and is switched to a diflubenzuron bait cartridge only after termites are detected, whereas the Trelona ATBS Annual station is active on install. Advance is often the most price-competitive professional bait option, at the cost of the monitor-then-bait delay that the Annual line was designed to remove.

Liquid Termidor SC: the strongest non-bait competitor for a homeowner who prefers a one-time fix with no recurring contract, at an estimated $800 to $2,500 install. It creates a treated soil barrier rather than baiting the colony, and there is no quarterly or annual monitoring to pay for. See the Termidor SC cost page for how the liquid model differs.

The right choice depends on three things: local termite pressure (high pressure favors continuous monitoring), your planning horizon (a long-term resident gets more from a renewable bond and an owned station set, a short-term owner from a one-time liquid), and budget. There is no universally correct answer. Getting both a bait quote and a liquid quote, on the same coverage terms, is the way to see the real trade-off for your home.

Section F / Frequently asked

Common questions

How much does the Trelona ATBS termite system cost?+

Trelona ATBS (Advance Termite Bait System) installs for an estimated $1,300 to $3,400 in 2026 for an average US home, plus $275 to $450 a year for the monitoring and warranty renewal. The 10-year total on our model lands around $4,500 to $6,800. Those figures are our own estimate: BASF does not publish install pricing, which is set by the pest control operator based on perimeter length, region, and station count. Trelona is usually quoted at or slightly below Sentricon because the annual-inspection label can lower the operator's labor.

What is the difference between Trelona ATBS and the Advance Termite Bait System?+

They are the same product family from BASF. ATBS stands for Advance Termite Bait System. Within it, the Trelona ATBS Annual station comes preloaded with active Trelona Compressed Termite Bait (novaluron) from day one, while the older Advance Termite Bait station holds a wood monitor first and is switched to a diflubenzuron bait cartridge only after termite activity is found. The Annual line is the one most operators install today because it is active on install and its label permits inspection just once a year.

How often does a Trelona ATBS station need to be inspected?+

The Trelona ATBS Annual Bait Stations label lets the operator inspect stations as little as once a year, or more frequently if they prefer. That is the headline difference from a quarterly-serviced system: fewer required visits can reduce the labor that feeds into your annual monitoring price. Many operators still visit more than once a year on active accounts, and your contract, not the label minimum, defines what you are paying for.

What is the active ingredient in Trelona and how does it work?+

Trelona Compressed Termite Bait contains novaluron at 0.50 percent (EPA Reg No. 499-557), a chitin synthesis inhibitor in the benzoylphenyl urea class. Foraging workers carry the bait back to the colony. Because novaluron blocks the ability to build new exoskeleton, workers die when they attempt to molt. As the worker population that feeds the colony collapses, the colony is eliminated rather than merely repelled. BASF field data cited on its product sheet reported 100 percent control across 50 structures at 12-month inspections.

Is Trelona cheaper than Sentricon?+

Usually a little, but they are in the same class and the difference is not large. Both are professionally installed chitin-synthesis-inhibitor bait systems with a certified-installer model and a recurring monitoring contract. Trelona is often quoted at or modestly below Sentricon, and its once-a-year inspection label can trim the operator's service cost. The bigger practical difference is the ownership model: with Trelona ATBS the in-ground stations are an asset that stays in your yard, whereas Sentricon Always Active stations are typically pulled if you cancel the service. Get both quoted rather than assuming one is always cheaper.

Does Trelona work for Formosan termites?+

Yes. Novaluron is registered and effective against native subterranean and Formosan subterranean termites. In Formosan territory (the Gulf Coast, Hawaii, parts of southern California) operators commonly place stations at tighter spacing to compensate for the larger colony size and wider foraging range, and monitoring contracts in those zones typically run higher than equivalent native-subterranean coverage.

Can I install Trelona ATBS myself?+

The Trelona Compressed Termite Bait cartridges are sold through pest-control retailers, so a determined homeowner can buy stations and cartridges. But an active infestation is the wrong place to learn: station placement, spacing, and disciplined inspection are what make a bait system work, and a professional install carries a warranty a DIY job does not. DIY bait is best thought of as a prevention or monitoring layer, not a cure for confirmed structural termites.

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