At Once Pest - Pest Control and Pest Exterminator in Baltimore
Pest/Nuisance Wildlife Control License # 28248-59492
Maryland Home Improvement License # MHIC108835
DNR # 55824
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Groundhog Trapping, Groundhog Removal, Groundhog Exlusion

Two names, one animal. The groundhog, or woodchuck is a stocky robust member of the ground squirrel family. Adult males can weigh up to 12 pounds.

  • Call Us - (443) 562-9509
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A number one enemy to beautiful gardens, groundhog are a common sight in suburban areas and prefer to dig their dens in the sides of hills, in fields, and under decks & sheds. Burrows have openings that are approximately 12 inches in diameter, sometimes reaching 60 feet in length.

Prevention by Exclusion * Reasonable Rates * Licensed & Insured

Groundhog Trapping and Exclusion in Baltimore, Ellicott City and Columbia

Woodchucks are most active at dawn & dusk. We generally have little to no trouble trapping woodchucks, as long as we can locate their burrows.


Groundhog Trapping and Exclusion in Baltimore, Ellicott City and Columbia

We also offer groundhog exclusion at your request.
Groundhog Exclusion - Photo by Marc Cohen.


How We Can Help

Why tolerate groundhogs or any other nuisance animals in your home? We are your local groundhog trapping and removal service. We provide animal control, animal trapping, and animal removal services in and around Baltimore City, Baltimore county, Howard county, and surrounding areas. We will solve your nuisance animal problems. We use a humane trapping and removal technique and release the animal legally. End your nuisance and wildlife animal trapping, and removal problems with a licensed and insured animal trapper. We're just a phone call away - 443-562-9509.

We serve customers in Baltimore county where we are located, and Howard County but will gladly travel to you. Our areas of service include Ellicott City, Columbia, Westminter, Finksburg, Owings Mills, Reisterstown, Pikesville, Hunt Valley, Sparks.


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  • Bed Bug Extermination
    • bed bug control
    • signs of beb bugs
    • schedule an inspection
    • heat treatment
    • fungi spores treatment
    • pre-treatment checklist (PDF)
    • bedbugs in hotels
    • testimonials
  • Spring and Summer Pest Threats
    • termites
    • snakes
    • stink bugs
  • General Pest Control
    • pest control & extermination
      • mice
      • rats
      • termites
      • snakes
      • stink bugs
      • ants
      • bees
  • Nuisance Wildlife
    • Nuisance Wildlife & extermination
      • bats
      • raccoons
      • snakes
      • squirrels
      • birds
      • groundhogs
      • moles
  • Products Used
    • View Full List
    • Advion
    • Arilon
    • Avert
    • Bedlam Plus
    • Brigand
    • CimeXa
    • Contrac Bait
    • Contrac Blox
    • D-Fense SC Insecticide
    • Ditrac
    • Fastrac
    • FG Magnum
    • First Strike
    • Gentrol
    • Liqua-Tox II
    • Nuvan
    • Phantom Pres
    • Resolv
    • Rozol
    • Steri-Fab
    • Temprid SC Insecticide
    • Transport
    • Transport Mikron
    • TRI-DIE
    • Vendetta Plus
    • Zenprox
    • ZP Tracking
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So, you think you have bed bugs?

bed bug bites

View the gallery of bed bug bites photos that can help you determine if you got bed bug infestation in your home

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new fungus spores kill bed bugs

Fungus to the rescue! Now there may be hope for non-heat treatment for bed bugs. Researchers at the University of Pennsylvania recently developed a break-through treatment for bed bugs - a microbiologist and an entomologist cultivated spores of a fungal disease that is deadly to bed bugs.

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worried home owner

What to do if your neighbors have bed bugs and do nothing about it?

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Contact Us

We provide various services and inspections, including bed bugs, rats, mice and cockroaches. Please contact us with any questions or concerns.

  • Email Us
  • (443) 562-9509
  • 7092 Milford Industrial Road
    Suite B
    Pikesville, MD 21208

Meet Marc

Marc Cohen

My name is Marc Cohen and I was born here in Baltimore. I attended the University of Maryland and graduated with a BS in zoology and science education. Animals have always been my first love. Upon graduation I taught life science at the Jemicey School in Owings mills. I left Jemicey to start a business called Safari Party...

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