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  • Verified reviews icon50
    Verified pest control services reviews

Top-Rated Pest control specialists in Loudon - Updated Nov 2026

Avatar for Colonial Pest Control Inc
Colonial Pest Control Inc
4.8(
263
)
Pest Control - Bugs and InsectsPest Control - RodentsPest Control - Termite

Serving Loudon, NH and surrounding areas

Approved (Corporate)

In business since 1984

Free estimates

Emergency services offered

"Dave was excellent. He was professional, honest and thorough. I thought I may have squirrels in the house because I heard scratching above a ceiling and saw a squirrel climbing my chimney with acorns in it's mouth.  
Dave inspected all the outside areas of my house and looked in my attic. He found no evidence of squirrels or bats or anything else (other than a few mice that I can take care of).
He screened off my two gable vents and recommended securing a couple of other entry prone areas which I can do.
I highly recommend Colonial Pest Control.
"
Project Photos
Tech introduction
Tech spray ext
Tech kitchen
Tech ladder

+5

27 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Ehrlich Pest Control
Ehrlich Pest Control
4.3(
11
)
Mosquito ControlPest Control - Bed BugsPest Control - Bugs and Insects+2 more

Serving Loudon, NH and surrounding areas

Approved

In business since 1921

Free estimates

Credit card accepted

"I had a fantastic experience with Ehrlich Southeast. Their customer service was excellent, from scheduling the appointment to the completion of the service. Their technicians were friendly, knowledgeable, and efficient, and they ensured my property was pest-free. I highly recommend them to anyone in need of pest control services."
Recommended by100%of homeowners
Avatar for A1 Exterminators, Part of the Ned's Home Family
A1 Exterminators, Part of the Ned's Home Family
4.0(
3,189
)
Pest Control - Bugs and InsectsPest Control - RodentsPest Control - Small Animals+2 more

Serving Loudon, NH and surrounding areas

Approved

In business since 1965

Free estimates

Credit card accepted

Since 1953, A1 Exterminators has provided quality pest control and extermination services throughout Massachusetts, Cape Cod, Martha's Vineyard, Rhode Island, Southern New Hampshire and Maine.\nWe're excited to announce that A1 Exterminators, a trusted name in pest control, is now proudly part of Ned's Home! With a legacy of protecting homes and businesses across Massachusetts, New Hampshire, Rhode Island and Maine for over 70-years, this transition ensures that A1 customers will continue receiving the same expert residential and commercial pest control and extermination services, now with the added strength and resources of Ned?s Home, a leader in home maintenance solutions.\n\nChoose A1 Exterminators for all your pest control and extermination needs and experience the difference our quality service can make!

6 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Kiefer Tactical & Wildlife Services
Kiefer Tactical & Wildlife Services
5.0(
12
)
Pest Control - RodentsPest Control - Small Animals

Serving Loudon, NH and surrounding areas

Approved

Free estimates

"Have a terrible mole infestation in my front yard, contacted Brian and he was here the next day, he arrived two days later to start the job, he was very down to earth ( no pun intended) and very professional. I will be recommending him whenever I get the chance Kevin H"
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26 neighbors recently requested a quote
CornerStone Pest Control
New to Angi
Mosquito ControlPest Control - Bed BugsPest Control - Bugs and Insects+5 more

Serving Loudon, NH and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

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Pest Control FAQs, answered by experts

If there is food sources and other places to build a nest, wasps may come back after their nest is gone. However, if you take measures to repel wasps, like planting pest-repellent plants or sealing cracks and gaps around the outside of your home, they aren’t likely to return. Be diligent at checking for new nests each spring to get rid of them as soon as possible and prevent bigger swarms of wasps in your yard.

While the term “gnat” is often used as a blanket term for tiny flying insects like fungus gnats and fruit flies, they are different insects. The primary distinctions are in their appearance, diet, and habitat. Fungus gnats are typically darker (gray or black) with long legs and are attracted to damp soil and decaying plant matter, often living in houseplants. In contrast, fruit flies are lighter in color (tan) with shorter legs and are drawn to overripe fruit, high-fructose organic substances, and other sweet materials.

Mice, rats, and other rodents are survivalists. They've developed a set of skills that can help them survive even in challenging, predatory conditions. For that reason, they can be hard to get rid of once they've staked their claim in your home. Often, the best way to get rid of rodents is to keep them from getting into your home in the first place.

Some snake repellents are risky to use around people and pets because they use the active ingredient in mothballs, naphthalene. The United States Environmental Protection Agency (EPA) has classified naphthalene as a carcinogen that can cause damage to the liver, neurological issues, and cataracts. 

The Colorado State University Extension suggests there’s not enough conclusive evidence of the effectiveness of snake repellents to recommend their use.

Professional treatments can be immediate but may require follow-up for complete effectiveness, lasting several weeks.

The Loudon, NH homeowners’ guide to pest control services

From average costs to expert advice, get all the answers you need to get your job done.