Row of colorful townhomes across a small lake with a walking path in a Gaithersburg Maryland neighborhood

Gaithersburg Ant Control

Family-owned & local since 1968

Kitchen trails, sand piles in the patio, or big black ants in spring. We find which ant you have and take out the colony, not just the ones you can see.

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Trusted & Certified By

National Pest Management Association Virginia Pest Management Association Maryland Pest Management Association

From Your Gaithersburg Neighbors

Trusted Ant Control in Gaithersburg, MD — in Our Customers' Words

Hear what Northern Virginia and Maryland homeowners have to say about our service — in their own words. Real customers from real homes, sharing why they trust Better Termite with what matters most.

Homes protected
100k+
Google reviews
4.9★
Years local
58+
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Why Better Termite

Ant Control in Gaithersburg you can trust — from $49/mo with no binding contracts.

Lower-Impact Products

Hand-picked, EPA-approved treatments selected by our research team — without 9 of the harshest products still used by most companies.

Local Ant Control Experts

Family-owned since 1968, with 300+ years of combined experience protecting Gaithersburg homes. A licensed local tech answers the phone.

The Better Promise

Unlimited free re-services and no binding contracts — we keep coming back until your problem is gone. Cancel anytime with 30 days notice.

About Better Termite

Which Ant Is in Your Gaithersburg Home?

The Answer Changes From One Street to the Next

"Ants" is not one problem in Gaithersburg. It is at least four. A condo owner in Brighton West fighting a trail to the dishwasher has a different ant than a family in Washingtonian Woods finding big black ants near a window every April. A townhome in Lakelands with sand piling up between the patio pavers has a third. Each one nests in a different place, eats different food, and gets inside a different way.

That matters because the wrong fix makes ants worse. Spray a store-bought repellent on odorous house ants and the colony splits and sets up in two new spots. Put out sugar bait for carpenter ants in the protein phase and they walk right past it. Our first job on every Gaithersburg ant call is to name the ant. Then we treat for that ant.

Better Termite & Pest Control is family-owned and has treated homes across the DC Metro area since 1968. We use non-repellent materials that ants carry back to the nest, so the colony goes down, not just the scouts. Ant plans start at $49/month, come with 3 visits a year and unlimited free callbacks, and there is no binding contract.

Local Ant Pressure

Gaithersburg's Ant Map: Lakes, Lawns, Slabs and Shade Trees

Irrigated Lawns and Lakes in Kentlands and Lakelands

Kentlands and Lakelands were built around water. The Kentlands lakes, Lake Varuna and the city-owned Inspiration Lake in Lakelands all sit a short walk from front doors. Add watered lawns, pocket parks, and deep mulch beds kept by the HOA. You get the damp, loose ground odorous house ants love. Their nests stay shallow, just under the mulch and at the edge of the lawn. So every heavy summer storm pushes a colony uphill toward the nearest dry house. In rows of attached homes, that trail can run along the foundation of a whole block before it finds the weak spot.

Slab Townhomes, Garages and Patio Pavers

A big share of Gaithersburg's housing is townhomes and condos, from the 1970s courts around Montgomery Village to the newer rows at Crown. Many sit on concrete slabs with brick or paver patios, sidewalks and alley garages. Pavement ants nest under that concrete. They push up little piles of sand through the joints and come inside through expansion cracks, garage floor seams and the gap where the slab meets the wall. You will often find them in a first-floor powder room or along the garage-to-kitchen door.

A Growing Tree Canopy and Older Wooded Lots

The City of Gaithersburg has a goal of 40% tree canopy by 2030 and is planting native trees across its 28 parks and along its streets. That is good for the city, and it also means more shade, more leaf litter and more mulch rings next to houses. Older wooded lots in Washingtonian Woods, the streets around Bohrer Park at Summit Hall Farm, and homes backing to Seneca Creek State Park already have mature oaks with dead limbs and stumps. That is where carpenter ants and acrobat ants start. When a limb touches the roof or a deck board stays wet, they move from the tree into the house.

Kitchen Ants

Odorous House Ants in Gaithersburg Kitchens, Condos and Townhomes

The Trail That Shows Up After a Storm

Odorous house ants are the small brown-black ants that march in a line to the sink, the dishwasher, or the pet bowl. Crush one and you get a smell like rotten coconut. They want sugar and water. In Gaithersburg they show up most in late spring and summer, and often the morning after a hard rain floods their nest in the mulch.

One colony can have many queens and several nests linked together. That is why they come back in the same spot year after year. It is also why sprays from the hardware store backfire. The repellent kills the ants you see, the colony senses danger, and it splits into new nests somewhere else in the wall. For more on why they keep returning, see our article on ants in the kitchen.

What Works in Attached Homes

In a condo or townhome, the nest is often not in your unit. It may be under a shared slab or in a common mulch bed. We treat the interior pathways with a non-repellent, so foragers carry it home to wherever the nest is. Then we treat the outside perimeter you control. We will also tell you what we see on common ground, like mulch piled against siding, so you can raise it with your HOA. Learn more about the species on our odorous house ant page.

Odorous house ant, the small ant that trails into Gaithersburg kitchens and bathrooms

Slab & Patio Ants

Pavement Ants Under Gaithersburg Slabs, Patios and Garages

Sand Piles Are the Giveaway

Pavement ants are small, dark and slow. They nest in the soil under concrete and brick. As they dig, they carry sand up and drop it in small piles along patio joints, the edge of a driveway, or a crack in the garage floor. They eat almost anything: grease, crumbs, pet food, even dead insects.

Inside, they find the weak spots in a slab. Look at the seam where the garage floor meets the house, around a plumbing line coming up through the floor, or along the baseboard of a first-floor room. On warm days in late spring and early summer, a colony can release a swarm of winged ants all at once. That scares a lot of homeowners into thinking they have termites.

Why You Cannot Just Seal the Crack

Caulking the crack you see pushes the colony to the next one. The nest is under the slab where you cannot reach it. Our non-repellent treatment goes into the cracks and seams the ants are already using, so they take it back under the concrete. We also treat the outside edge of patios, stoops and walkways. Our pavement ant guide has photos to help you confirm what you are seeing.

Pavement ant on concrete, the ant that nests under Gaithersburg slabs, patios and sidewalks

Wood-Nesting Ants

Carpenter Ants and Acrobat Ants in Gaithersburg's Wet Wood

Big Black Ants Near Wooded Lots

Carpenter ants are the largest ants you will see in Gaithersburg, often a half-inch long. They do not eat wood. They chew it out to make room for their nests and leave behind a coarse sawdust mixed with insect parts, called frass. They go for wood that water has already softened: a window sill under a leaky gutter, a deck ledger board, porch posts, or the sill plate over a damp crawlspace. Homes near mature trees and the Seneca Creek woods see them most. If you find small piles of sawdust, read our guide to carpenter ant frass.

Acrobat Ants: The Ant That Raises Its Tail

Acrobat ants are smaller and often two-toned. When you bother them, they lift a heart-shaped rear end over their back. They nest in wet or rotting wood, hollow tree limbs, and sometimes in foam board insulation behind siding. On Gaithersburg homes we find them around old trim, under siding near overgrown shrubs, and in dead limbs hanging over a roof. They can bite, and they often trail in along utility lines and tree branches that touch the house.

Flying Ants or Termites?

Both carpenter ants and termites swarm in spring. Winged ants have a pinched waist and bent antennae. Termite swarmers have a straight, thick waist and four wings the same length. Our breakdown of flying ants vs termites walks through the differences. If yours turn out to be termites, see our Gaithersburg termite control page.

Large black carpenter ant on leaf litter near a wooded Gaithersburg Maryland property

Ant Season

A Year of Ants in Gaithersburg, Season by Season

Late Winter and Spring

On the first warm days, carpenter ants nesting inside a heated wall can wake up early. A few big black ants in February or March is a sign the nest is indoors, not outside. By April and May, carpenter ants swarm, odorous house ants start trailing in, and pavement ants get busy under patios as the ground warms.

Summer

Summer is peak season. Pavement ants may swarm on warm days. Odorous house ant colonies are at their biggest, and summer storms flood their nests and push them inside. Dry spells send them in too, this time for water at sinks and tubs. Acrobat ants trail along tree limbs and wires to reach the house.

Fall and Winter

As it cools, outdoor colonies slow down, but ants already nesting in a wall or under a slab keep going in the warmth of the house. A fall visit is a good time to treat before those indoor nests settle in for the winter. Our article on ant season explains what drives these shifts. Our 3 visits a year are spaced to cover each stretch, and if ants turn up between visits, we come back free.

Better Termite technician treating the exterior of a Maryland home beside flower beds
Ant Control in Gaithersburg, MD

Everything We Do

Every service we offer in Gaithersburg — one local team, one phone call.

Wall of Love

What Montgomery County Homeowners Say About Us

Google 1800+ 5 Star Reviews on Google
★★★★★

"We had a bad cockroach problem - we knew it was bad because of all the baby cockroaches we spotted. It took a while but Better Termite ultimately solved it and our house is cockroach free. Cindy in particular, was quick to help out and made it pain free."

Marc S. Derwood, MD 5 Stars on Google
Google
★★★★★

"I've had nothing but great experiences for 3 years now. Their consistent, reliable service really stands out for me, and everyone is always kind and easy to talk to. I also like that they're a local, family-run business. Kamaal, who I'm gonna call my customer consultant, is fantastic—he really listens to my concerns."

Alexander K. Boyds, MD 5 Stars on Google
Google
★★★★★

"I highly recommend this company for your home pest control. Their technicians are thorough and have prevented any unwanted problems from happening on our property. During our last treatment, Jasmine took care of our outdoor spider webs without us even asking. Last summer they removed a mud dauber's nest under our deck and above our patio door. That attention to detail speaks volumes. Thank you for taking care of us!"

Sandi Marino 5 Stars on Google
Google
★★★★★

"The team at Better Termite & Pest control are phenomenal! I feel like my family and my home are in good hands. Everyone I have come into contact with has been responsive, pleasant and professional. The price is right and the service is superb!"

Erneisha Bailey 5 Stars on Google
Google
★★★★★

"Joann is amazing! She always takes time to talk with me and check inside boxes. I so appreciate her!! I have been using Better Termite and Pest Management for over 20 years."

Joann With us for 20 Years
Google
★★★★★

"We had a bad cockroach problem - we knew it was bad because of all the baby cockroaches we spotted. It took a while but Better Termite ultimately solved it and our house is cockroach free. Cindy in particular, was quick to help out and made it pain free."

Marc S. Derwood, MD 5 Stars on Google
Google
★★★★★

"I've had nothing but great experiences for 3 years now. Their consistent, reliable service really stands out for me, and everyone is always kind and easy to talk to. I also like that they're a local, family-run business. Kamaal, who I'm gonna call my customer consultant, is fantastic—he really listens to my concerns."

Alexander K. Boyds, MD 5 Stars on Google
Google
★★★★★

"I highly recommend this company for your home pest control. Their technicians are thorough and have prevented any unwanted problems from happening on our property. During our last treatment, Jasmine took care of our outdoor spider webs without us even asking. Last summer they removed a mud dauber's nest under our deck and above our patio door. That attention to detail speaks volumes. Thank you for taking care of us!"

Sandi Marino 5 Stars on Google
Google
★★★★★

"The team at Better Termite & Pest control are phenomenal! I feel like my family and my home are in good hands. Everyone I have come into contact with has been responsive, pleasant and professional. The price is right and the service is superb!"

Erneisha Bailey 5 Stars on Google
Google
★★★★★

"Joann is amazing! She always takes time to talk with me and check inside boxes. I so appreciate her!! I have been using Better Termite and Pest Management for over 20 years."

Joann With us for 20 Years
Google

How It Works

How Ant Control Works in Gaithersburg

Talk to a Licensed Tech

Call 703-683-2000 and tell us what the ants look like and where you see them. A licensed technician answers, not a phone tree, and gives you a quote and a plan on that call.

78-Point Home Inspection

We follow the trails inside, from kitchen, bath and pantry to basement, then work the outside: foundation, patio joints, mulch beds, deck boards, and any wood gone soft from water.

Interior Crack & Crevice Treatment

We apply a non-repellent material to the cracks, voids and pipe gaps the ants are using. Ants cannot detect it, so they carry it back and share it with the rest of the colony.

Exterior Perimeter Treatment

We treat the foundation and perimeter with a non-repellent barrier and point out conditions that feed ants, like mulch piled against siding or a gutter that dumps water at the slab.

Triannual Visits

Ant materials wear down over time, so your plan includes 3 scheduled visits per year to reapply before protection runs out.

Unlimited Free Callbacks

If ants come back between visits, call us. We come back and retreat at no extra charge. There is no binding contract, and you can cancel with 30 days notice.

Your Local Office

Ant Control Across Gaithersburg

From the lakeside streets of Kentlands and Lakelands to Olde Towne, Washingtonian Woods, Diamond Farms, Quince Orchard and Crown, in ZIP codes 20877, 20878, 20879, 20882 and 20886.

Get in Touch

Visit Our Alexandria (Headquarters) Office

2647 Duke Street
Alexandria, VA 22314

Office Hours

  • Mon, Tue, Thu7:30 AM – 7 PM
  • Wed, Fri7:30 AM – 8 PM
  • Sat, Sun9 AM – 6 PM

Good to Know

Gaithersburg Ant Control Questions

Still have questions? A licensed local tech picks up at (703) 683-2000.

Got a pest problem?
Speak with a Licensed Expert Now

Our Free Callback Promise

See pests between scheduled visits? We come back and retreat at no extra cost — as many times as it takes. No binding contracts, cancel anytime with 30 days notice.

Call 703-683-2000
(703) 683-2000 Free Quote