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  • Average homeowner rating star icon4.3
    Average homeowner rating
  • 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

26 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for CornerStone Pest Control
CornerStone Pest Control
4.6(
44
)
Pest Control - RodentsPest Control - Bugs and InsectsPest Control - Bugs and Insects - For Business+5 more

Serving Loudon, NH and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"My wife & dog was attacked bees & I called cornerstone pest control . Spoke to Anthony & within the hour Josh came & took care of all the hives & explained how the colonize heâ s very knowledgeable!!!! Great company"
Nest Removal
Full service pest control
Response time7 hrs
23 neighbors recently requested a quote
Recommended by83%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
Avatar for PestAgon Termite and Pest Services
PestAgon Termite and Pest Services
3.4(
7
)
Mosquito ControlPest Control - Bed BugsPest Control - Birds and Bats+9 more

Serving Loudon, NH and surrounding areas

In business since 1984

Credit card accepted

"As of this date-3/31/2016, there have been no further complaints from the tenant residing in this residence.  The services noted above were completed as stated and have worked thus far.  

Mr. Ryan also perfomed a similar service in 10/04/2014 for another residence I own.  No evidence of any entry of rodents since that date.  He also returned on November 4, 2015 to examine the exterior periment and noted that there was no rodent activity found.  The current occupants have not found any evidence of mice/rodents within the interior since the initial service on this property was performed in 2014.

I highly recommend PestAgon Termite and Pest Services.  They respond immediately and perform the extermination services as indicated promptly and completely.  It is worth the cost of these sevices to keep rodents out of my property!!  Laying flypaper in the basement does not do the job.  It is the exterior of your home that needs to be addressed!!"
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+7

Recommended by66%of homeowners
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Pest Control FAQs, answered by experts

Scorpions can climb walls with rough surfaces (like stucco siding). They need something to grip onto, which is why they can easily climb on clothes, comforters on beds, and other items in your home.

However, it’s worth noting that scorpions cannot climb clean glass. So if you have a hole or damaged area where scorpions are coming in, a temporary fix may be to secure a piece of glass over the area.

The easiest way to tell what kind of wasp you have is to identify its size, markings, color, and the type of nest it builds. These factors can help differentiate one type of wasp from another, since there are hundreds of thousands of different species. If you need help identifying the wasp type, consult a local pest control professional.

Consumer-brand foggers or bug bombs are considered safe overall. Still, it's essential to read the instructions carefully as the vacating time varies depending on the type of bug bomb you use. Most of the time, it's advised that all humans and pets are out of the area for at least two to four hours after initiating the fogger process. It's also a good idea to vent the space by cracking open some windows for several hours after you're back inside.

Citrus scents such as lemon or lime are lethal to bed bugs. They’re drawn to the smell, but the chemicals often kill them. There are other ways to kill bed bugs without an exterminator, including using steam, DIY heat treatments, essential oils, diatomaceous earth, and more. However, you should hire a professional bed bug exterminator to eliminate large numbers of bed bugs.

You’re not likely to find water bugs in your house. They may accidentally come in an open door when flying, especially since they are attracted to lights. But water bugs tend to stay stationary in bodies of water. You’re much more likely to see a roach in your home, not a water bug.

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.