Ant Control & Exterminator in Merrick, NY

Brennan Termite & Pest Control locates and eliminates ant colonies in Merrick, NY homes. Carpenter ants, pavement ants, and more. Family-owned since 1977. Call (516) 221-6329.

The gutter on the back of the house backed up two years ago. Water sat behind the fascia for a season before it was noticed and cleared. The wood dried out, the repair was made, and the problem seemed resolved. But wood that has absorbed water and then dried is not the same wood it was before. It is softer, and in Merrick, softened wood in a fascia board or a wall cavity near a former moisture intrusion is exactly what a carpenter ant colony looks for when it is ready to expand indoors.

Carpenter ant infestations in Merrick homes are frequently connected to moisture history that the homeowner does not immediately associate with an ant problem. A past roof leak near the chimney. A window seal that failed two winters ago. A section of crawl space framing near a wet corner of the foundation. The ant does not create the moisture problem. It finds the wood the moisture problem already damaged.

Brennan Termite & Pest Control has been treating ant infestations in Nassau County homes since 1977, based in neighboring Seaford. Call (516) 221-6329 any time. Available 24/7.

Brennan Termite and Pest Control technician performing termite extermination on Long Island
Glossy black ants swarming on weathered wood around worn grain

Why Merrick Homes Are Particularly Susceptible to Carpenter Ants

Merrick sits close to Merrick Bay and the South Shore tidal wetlands, and the water table in this area runs high relative to inland Nassau County communities. That elevation means soil around foundations stays moist longer after rain, and moisture that enters a home through a small gap or a failed seal takes longer to dry out than it would elsewhere.

A Merrick home that has had any of the following is a candidate for carpenter ant activity: a roof or gutter leak that reached wood framing at any point; a basement or crawl space with any history of water intrusion; window or door frames with weathered or failed exterior seals; deck posts, pergola framing, or wood fences with direct soil contact; mature trees within foraging range with decayed wood or root systems.

Identifying the Ant Problem in Your Merrick Home

Not all ant appearances require the same response. The first question a Brennan technician answers during an inspection is which species is present, because that determines everything that follows.

Carpenter Ants: The Structural Risk

Carpenter ants are the species that cause damage in Merrick homes. They are large (half an inch to one inch), typically black or dark brown, and they are most active at night. They excavate wood to create nesting galleries, preferring wood that has been softened by moisture. Signs of carpenter ant activity: frass (coarse, gritty material near baseboards or wall openings); large dark ants moving along baseboards after dark; faint rustling from inside walls; winged swarmers indoors in spring, indicating an established, mature colony.

Pavement Ants: The Persistent Nuisance

Pavement ants are small (about 1/8 inch), nest in soil beneath concrete, and enter Merrick homes through cracks and expansion joints in aging pavement and foundations. Their colonies are large and they return reliably unless the colony is reached and treated directly. Brennan uses professional-grade bait and treatment products that reach pavement ant colonies at the nest level.

Odorous House Ants: The Colony That Spreads

Odorous house ants nest in wall voids, under flooring, and in insulation near moisture sources. They are small (1/8 inch), dark brown, and named for the rotten odor they produce when crushed. Their colonies are often multi-queen, which means they can split under chemical pressure and establish secondary nests in new parts of the home. Repellent sprays are particularly counterproductive for this species.

How Brennan Resolves Ant Infestations in Merrick

The treatment approach depends entirely on what the inspection finds. Brennan does not apply a standard product and schedule a follow-up. The technician identifies the species and nest location first. Species confirmation is the foundation of everything that follows. Moisture source assessment for carpenter ants is standard in Merrick. Forager trail tracking leads to entry points and probable nest locations. Targeted treatment at the colony uses products selected for the species. The technician provides a full explanation before leaving and a free return visit if needed.

Black ants swarming on a white windowsill near window frame

Carpenter Ants and Merrick Home Sales

If you are selling a home in Merrick and a buyer’s inspector identified carpenter ant activity or damage, you will likely need to address it before closing. Lenders and real estate attorneys typically require documentation of professional treatment for wood-destroying insect findings. Brennan treats carpenter ant infestations found during real estate inspections and issues written documentation. Call (516) 221-6329 directly for closing timelines.

Before calling, note where ants appear and when. Look for frass. Do not spray — forager trails help the technician locate the nest. If you see winged ants, save one before spraying. Note any moisture history near the activity.

Why Merrick Homeowners Choose Brennan for Ant Control

Based Minutes Away in Seaford

Brennan is headquartered at 2085 Paddock Rd. The technician servicing Merrick homes is not dispatched from a regional hub.

Nearly 50 Years on Long Island

Brennan has been identifying and treating carpenter ant and pavement ant infestations in homes like yours since 1977.

No Recurring Contracts

Service is provided for the pest problem at hand. Nothing to cancel when it is resolved.

Free Return Visits

Follow-up is included when the treatment requires it.

Honest Findings

If the ant activity is a minor nuisance, Brennan will tell you that. The goal is accurate information, not a maximized service call.

Verified Track Record

5.0 on Google, Yelp, and Angi. NPMPA certified. Customer Trust Score 94. Zero BBB complaints.

Frequently Asked Questions

Not necessarily, but it does mean the conditions that attract carpenter ants are present. Carpenter ants require moist wood for nesting, and a wet crawl space can produce that condition over time. A Brennan inspection can confirm whether ant activity is present and identify whether the moisture issue has already been exploited.

Carpenter ant swarmers have a pinched waist, elbowed antennae, and wings of unequal length. Termite swarmers have a straight, thick body, straight antennae, and wings of equal length. Both appear in spring. If you find winged insects indoors and are not certain which species, do not spray. Call Brennan. The identification determines the response.

Treatment eliminates the active infestation and stops further damage. It does not reverse wood that has already been excavated. The extent of structural damage depends on how long the colony has been active. If damage is found during treatment, Brennan will advise on what was observed.

Yes. Brennan services both owner-occupied and rental properties in Nassau County. For landlords coordinating treatment between tenancies or in response to tenant reports, Brennan provides documentation of the treatment upon request.

Yes. Free inspections are available for Merrick homeowners. Call (516) 221-6329 or request one online.

Treatment cost varies based on the size of the infestation, the number of nest sites, and the scope of treatment required. Brennan provides an assessment and pricing before starting any work. Free inspections are available so you know what you are dealing with before committing to a treatment plan.

Same-Day Response for Long Island Pest Problems

Briefly let us know how we can help and we will contact you via your email.
Please leave your phone number if you would prefer a phone call.

What Long Island Homeowners Say About Brennan

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nadene mccarthy
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Excellent customer service! The techs Mike and Mike were super knowledgeable, informative and clearly wanted us to be happy. Highly recommend!
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Christopher Joyce
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First time customer - I called Mike Brennan after being referred by my family member. He answered my call, evaluated the situation, gave me some incredibly helpful tips to address the immediate issue, and fit me in after his last appointment on the same day. Mike and his associate (also Mike) arrived when they estimated, inspected the problem area, got to work, eliminated the problem and sealed the area all within an hour. The job was foul and they got pretty dirty, but they maintained their professionalism throughout. It’s doubtful you’ll find a more professional team in the area. Though I hope I will not need this particular service ever again, I would not hesitate to call them should the need arise. Thank you Mike and Mike!
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Mercedes Cueva Marin
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Excellent service from start to finish. He was professional, punctual, honest, and extremely knowledgeable about termite treatment. From the initial inspection, he took the time to explain everything in detail with great patience, helping us understand exactly what was happening in our home, where the termites were likely coming from, and the best way to treat the problem. Thanks to his expertise, he correctly identified the source and created a detailed, effective treatment plan focused on the affected areas and around the home. He and his team completed the work efficiently and respectfully. It’s rare to find someone so trustworthy, dedicated, and clearly passionate about what they do. I highly recommend their service.
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Donna Wernert
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Mike was professional, neat and explained everything . I would recommend him for any type of pest control you may need.
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Michele Fedele
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Mike is very knowledgeable. He explained how he was going to treat the area. It’s great to do business with a local family.
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Cindy Willis
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I see why he has a 5 STAR RATING. Did a great job at my house last week, professional...arrived at the exact time he said....fair pricing.....knowledgeable....and even explained everything he was going to do to treat. I will never use anyone else for my exterminating needs. A keeper...unlike the pests he treats!!! Thanks Mike....nice to give the business to a local family owned business that takes pride in their work.
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Karyn Zubko
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I’ve been using this company for over 15 years!!! Simply the best!!!
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David Kaufman
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Mike is awesome! Really such an absolute pleasure to deal with. Randomly found him searching online (was looking for a truly family owner and operated business) and he didnt disappoint. We had an earwig infestation. I called Mike and he is probably one of the most patient human beings I have met. He spent time discussing the issue and the treatment. There was absolutely no pressure to use him. We ended up using him and he came and again explained everything he was doing.. he was extremely thorough and it's a month and half later and we are still bug free.
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David Johnson
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Mike is such a fantastic guy! He goes above and beyond for us every time! Squirrels, rickets, yellow jackets... they do it all!!