Long Island Exterminators

Termite Treatment on Long Island

You pull up the old carpet in the basement and the wooden tack strip underneath crumbles in your hand. That is one of the signs Long Island termite companies list, and the next question is what treating the house will cost.

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No. 1TermiteReticulitermes flavipes

The termite in Long Island houses is the eastern subterranean termite. It lives in the soil and comes up into the wood, so every treatment on this page works at the soil line around the foundation. If you are still not sure what you found, start with our termite identification page.

Termite treatment prices on Long Island

ServicePriceSource
Termite inspection$75 to $150Arrow Exterminating, Apr 2026
Termite inspection$100 to $300, often credited toward treatmentAdvanced Pest Management, May 2026
Liquid termiticide treatment$800 to $2,500, based on foundation lengthQuest Pest Control, Feb 2024
Liquid barrier, single-family home$1,500 to $5,000 or moreAdvanced Pest Management, May 2026
Bait station system, installed$1,000 to $2,500Quest Pest Control, Feb 2024
Bait station system, initial$1,500 to $4,000Advanced Pest Management, May 2026
Bait monitoring$300 to $500 a yearQuest and Advanced
Annual renewal warrantyAbout 10% of the original treatment a yearAdvanced Pest Management, May 2026

Quest prices liquid work by the length of the foundation, so a bigger footprint costs more. It also lists hard-to-reach areas such as crawl spaces, and how far the infestation has spread, as price drivers.

Liquid barrier or bait stations

Liquid termiticide. A treatment injected into the soil along the foundation, the first option on the Connecticut Agricultural Experiment Station’s list. Quest prices it by the linear footage of the foundation.

Bait stations. Stations set in the ground around the house, checked on a schedule. Knockout Pest Control in Uniondale says it uses the Sentricon and Trelona bait systems. Both price lists above add a yearly monitoring fee for as long as the stations stay in.

The experiment station’s advice is simple: agree on the method with the company before anything is applied, and get that method named on the contract.

Why a do-it-yourself treatment can cost you at closing

The experiment station does not suggest treating termites yourself. Beyond the cost and the odds of missing the colony, it notes that a homeowner’s own treatment will not satisfy home inspection requirements when the house is sold. If you plan to sell in the next few years, a company’s treatment record and renewal paperwork are worth keeping in the file with the deed.

How to compare termite quotes

The experiment station recommends interviewing several companies. Hearing the same story from more than one tells you what is real, and it shows you the normal price range. Throw out the quotes that are far higher or far lower than the rest, and do not let anyone rush you into signing the same day.

Put these questions to each company:

  • Liquid or bait, and why for this house?
  • How many linear feet are you treating, and does that include the garage and any porch or slab?
  • What does the warranty cover: re-treatment only, or damage repair too?
  • What is the yearly renewal or monitoring fee after the first year?
  • What is your NYSDEC registration number, and does it list category 7c, Termite Control? Termite work is its own category in the state’s NYSPAD records.

Keeping termites from coming back

Treatment works better when the house stops inviting termites in. The Connecticut Agricultural Experiment Station’s list:

  • store firewood and lumber off the ground and away from the foundation
  • use mulch sparingly and keep it back from siding and wood trim
  • point downspouts away from the house and keep the soil along the foundation dry
  • keep plants and ground cover at least 3 feet from the foundation
  • do not let vines grow on the house, and do not use foam board insulation below grade

Exterminators to call about termites

Companies based in Nassau and Suffolk. Ratings are a Google Maps snapshot from October 2026. For termite work, check that a company's NYSDEC record lists category 7c, Termite Control.

Termite treatment questions

How much does termite treatment cost on Long Island?

Quest Pest Control, serving Nassau, Suffolk and Queens, lists a liquid treatment at $800 to $2,500 and bait stations at $1,000 to $2,500 to install plus $300 to $500 a year (February 2024). Advanced Pest Management, with an office in Garden City, lists $1,500 to $5,000 or more for a liquid barrier and $1,500 to $4,000 for bait stations (2026).

Is liquid treatment or bait better?

The Connecticut Agricultural Experiment Station lists soil termiticide injections, baits and barrier treatments as the options, and says the homeowner and the company should agree on the method before treatment starts. Liquid is priced by the length of the foundation, according to Quest Pest Control.

What does a termite renewal cost each year?

Advanced Pest Management puts an annual renewal warranty at about 10 percent of the original treatment cost. Bait systems carry a yearly monitoring fee, $300 to $500 by both Quest's and Advanced's lists.

Can I treat termites myself?

The Connecticut Agricultural Experiment Station does not suggest it, calling self-treatment time-consuming, expensive and ineffective. It also notes that a homeowner's own treatment will not satisfy home inspection requirements if you sell.

Sources (6), checked October 2026
  1. Quest Pest Control (a Rest Easy Pest Control brand, Nassau, Suffolk and Queens), Pest Control Cost Guide (Feb 15, 2024)
  2. Advanced Pest Management (Garden City and Glendale), Termite Swarm Season on Long Island and Queens (May 3, 2026)
  3. Arrow Exterminating (Lynbrook and Ronkonkoma), What Are the Costs of Termite Prevention (Apr 2026)
  4. Knockout Pest Control (Uniondale), 5 Signs You Might Have Termites (Mar 11, 2026)
  5. Connecticut Agricultural Experiment Station, Eastern Subterranean Termite fact sheet
  6. NYSDEC, NYSPAD business and applicator search
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