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Carpenter Ant Pest Control in Portland OR and Vancouver WA

Carpenter Ants

Carpenter ants are the largest ants (3.4 to 14mm long) most people will ever see in their lifetime. Carpenter ant colonies in the Portland, OR; Vancouver, WA; and Camas metro areas can be massive, reaching up to 100,000 workers.

Carpenter Ant Description

Sugar Ant Up-Close View in Portland OR and Vancouver WA


Carpenter ants are typically large, measuring 3.4 to 14mm long. Ants have different roles in the colony, which will dictate their size and features. The soldier ants are typically the most noticeable because of their large size.


Carpenter ants can vary in color with red or yellow hues on their usually black body.


One of the best ways to determine if you are looking at a carpenter ant is if you find wood nearby that is splintered or has holes in it. Carpenter ants use this wood for sheltering nests. The displaced wood is fine, like sawdust with insect parts and dead ants usually mixed in. 

What are carpenter ants?

Carpenter ants are called “carpenters” for a reason. These large ants carve out their homes in wood, creating wood that looks slit, tunneled, or cut away. 

The two most common species in the Northwest are C. Modoc & C. Vicinus. Both species are primarily nocturnal but can also be active during the day. Most people think of carpenter ants as big, black, and uniform in size. However, carpenter ants are “polymorphic,” which means the worker ants vary in size. 

How did I get carpenter ants?

Carpenter ants enter the home through cracks in floorboards, walls, and the structure of the home. A severe carpenter ant infestation is most often connected to a moisture problem somewhere inside the home. Areas of the home with untreated wood or wood that is starting to decompose or rot are usually hot spots for carpenter ants.

Do carpenter ants eat wood?

Carpenter ants do not eat wood for nutrition like termites. Rather, they excavate their nests in wood, creating smooth galleries and tunnels. 

Where are the carpenter ants coming from?

Outdoor nesting sites tend to be inside trees, under stumps and rocks, or in landscape timber. In homes, carpenter ants usually nest inside wood and various kinds of insulation. Within the home, the nest (or nests) is almost always a “satellite” colony. In fact, the main carpenter ant colony may be up to 250 yards away.

Where are carpenter ants likely to congregate?

Check your home for spaces with a lot of moisture, like kitchens, laundry rooms, and bathrooms. 

Still not sure if you’re looking at a carpenter ant?


Carpenter Ant Tips

Are Carpenter Ants Harmful?

Are Sugar Ants Harmful Icon
Carpenter ants are extremely destructive to homes and structures.

Do carpenter ants destroy only damaged wood?

Pacific Northwest carpenter ants can destroy both sound or damaged wood.

How destructive are carpenter ants?

Carpenter ants cause more economic damage in Washington than any other state in the US, and Oregon isn’t far behind.

Is it too late to stop carpenter ants?

It may not come as a revelation that carpenter ants can be extremely destructive if left untreated. The extent of damage inside a home depends mostly on two factors: first, how many carpenter ants there are, and second, how long the ants have been active. If you notice carpenter ant activity in or around your home, it’s vital to get a professional carpenter ant inspection immediately. Early intervention is critical when dealing with wood-destroying organisms.

Are Carpenter Ants SEASONAL?

Are Sugar Ants Seasonal Icon
Carpenter ants start becoming more active in the Spring (March-April).

While the temperate climate of the Pacific Northwest makes it so that carpenter ants can be active throughout the year, they are most active in the spring.

When do they reproduce?

Carpenter ants send their reproductive individuals out in springtime. They set out to mate and form new colonies. These ants are typically winged.


can i treat carpenter Ants on my own?

DIY Sugar Ant Treatment Icon
Carpenter ants are resilient pests, and DIY solutions often don’t have the strength.

Because of the damage that carpenter ants can cause, we recommend that you contact one of our pest control specialists immediately. We will provide you with an inspection and consultation—free of charge.

Do repellent sprays work on carpenter ants?

Yes. Repellent sprays work to keep the pests away or to kill exposed individuals. Unfortunately, such sprays do not break the egg cycle of the carpenter ant population.

Do over-the-counter generic ant baits work on carpenter ants?

Most ant bait traps you can get from a store over-the-counter, focus on sugar ants or other ants. Be sure to check when you purchase that the bait works specifically for carpenter ants. Keep in mind that these baits are less effective than having a professional pest control technician treat your home or business.


Carpenter ant extermination with guaranteed results


Why should I call a professional pest control service?

DIY pest control treatments are much less effective than their professional counterparts. We started Aspen Pest Control because we believed that we could make pest control friendlier and easier. We will inspect your home and provide you with an estimate—all free of charge.

Protect Your Property Value: Prevent a carpenter ant infestation

Carpenter ants can wreak havoc on your property and compromise its structural integrity. This issue is prevalent in the Portland/Vancouver region. Rather than waiting until the problem escalates, vigilant homeowners should take immediate action at the first sighting of a carpenter ant. Safeguard your valuable investments by proactively preventing carpenter ant infestations.

Early intervention is crucial for carpenter ant termination

As you can imagine, the sooner that our pest control technicians intervene, the easier it is to control the carpenter ant populations and provide treatment solutions. Delaying treatment often leads to more destruction of your property and structures.

Carpenter Ant Treatment



Give us a call! Often, a quick phone consultation is all it takes to give you a quote for carpenter ant treatment. However, we are happy to come to your home for a free inspection if needed. Our pest control technicians will evaluate the extent of the carpenter ant problem.

Aspen Pest Control Technician Treating the Floorboards of a Portland OR Home


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At Aspen Pest Control, we are dedicated to using green pest control options that are effective against pests but safe for your family and pets. These commercial-grade pest control products keep your home safe from carpenter ants and drive them away from your home. 

Aspen Pest Control Technician Treating a Vancouver WA Yard with Green Pest Control Product



More is required than us simply treating your home and saying that the job is done. We are confident in our work because we provide ongoing observation and treatment to protect your home. Carpenter ants can be difficult to eradicate without consistent, dedicated treatments. We back up all our regular treatments with a guarantee: if the pests come back between treatments, we will return and treat your home within 3 business days—free of charge.

Aspen Pest Control Technician Setting Pest Bait Trap While Talking to Vancouver WA Homeowner

Secure your home from carpenter ants 


Aspen Pest Control Technician Giving a Free Pest Control Consultation to Vancouver WA Homeowner

100% satisfation guarantee

We aren’t your average pest control company. We believe in the importance of professionalism from every member of our team. Our technicians are prompt, punctual, and friendly. We will provide you with the pest control services that you need—not unnecessary services. We have treated thousands of homes for carpenter ants. Our technicians will come with expertise and reassurance that we can get the job done.

Talk to an Aspen Pest Control technician today to exterminate your carpenter ants.

Talk with an expert pest control technician 


Vancouver Office:


12104 NE 95th St.

Vancouver, WA 98682


Portland Office:


8305 SE Monterey Ave

Suite 220 Q

Happy Valley, OR 97086

Mailing Address:

19215 SE 34th St

Suite #106-155

Camas, WA 98607

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