If it Crawls, Give ATC a Call!
ATC Pest Control offers comprehensive exterminator and control solutions for homes and businesses.Established in 1991 near Hanover PA,we are proud to keep families safe and comfortable in Adams, York, and Harrison counties in PA, and Baltimore County, Baltimore City, Harford, Cecil, Anne Arundel and Howard counties in MD.
Our experienced technicians specialize in eliminating unwanted pests and preventing future infestations. ATC Pest Control is committed to achieving long-term results and customer satisfaction.
We specialize in 1-Day Heat Treatments for Bed Bugs, Advanced Termite removal with zero re-treatments, Rodents, and Mold Remediation.
ATC is a family-owned pest control company that stands behind our work. Call us today!
Served areas
- Baltimore County, Baltimore, Maryland, Towson, Owings Mills, Frederick, Pennsylvania, York, PA, Gettysburg, Hanover, PA
Business details
- Year established: 1991
- Licensed
- Insured
Highlights and features
- Family-owned pest control since 1991 in PA and MD
- 100% Satisfaction Guarantee with free retreatments
- Pet-safe, all-natural pest control treatments
- Technicians trained and certified through rigorous programs
- Serving 5,000+ families with 250k+ jobs completed
- Comprehensive pest control including termites and bed bugs
Payment methods
- Cash, Checks, Debit cards, Credit cards, Mobile payments, Financing available
Services
Our Pest Control Plan offers year-round protection designed to keep your home free from common pests. With four seasonal treatments, we proactively prevent infestations by targeting pests early. If pests return between visits, we provide complimentary re-treatments to ensure your home remains secure and comfortable. Trust our experienced team to safeguard your property effectively. 
Our bed bug heat treatment service, refined over 32 years, offers a fast and thorough method to remove infestations. By applying intense heat, we eradicate bed bugs at every life stage without using harmful chemicals. This treatment is safe for all household members and pets, requires minimal preparation, and delivers lasting, effective results in a single visit. 
At ATC Pest Control, we have provided reliable commercial pest management for over three decades. Our locally owned and operated company focuses on delivering tailored, eco-friendly pest solutions that protect your business environment. We prioritize the safety of your employees and customers, ensuring effective elimination and prevention of pests with minimal disruption to your operations. 
We deliver professional mold remediation services that prioritize your health and property integrity. Utilizing advanced heat-based technology, we eradicate mold from all affected areas safely and effectively. Our process avoids harmful chemicals and minimizes disruption, and our lifetime warranty guarantees long-term protection against mold recurrence. 
Purchasing a home requires a detailed pest inspection, often mandated by mortgage lenders. ATC Pest Control specializes in identifying and addressing termite infestations, preventing costly damage. Our professional inspections include thermal imaging and detailed reporting, giving buyers confidence and peace of mind throughout their real estate transaction.
People
Caryn Guderjohn
Bryan Guderjohn
Bryan Guderjohn is the CEO of ATC. He is the Chief International Bird Engineer and travels the world for bird work. He is the host for ATCs weekly radio show and oversees our Mold and Construction divisions. Bryan is Caryns husband (of 31 years) and the Father of Ashley, Tyler, and Christopher. He was in the US Army for 12 years and enjoys camping and anything to do with his Jeep.
Reviews (12)
James Calhoun
Jun 22, 2025
While doing yard work I noticed a spot on my house with a few unwanted guests going in. Called ATC Pest Control and got an appointment scheduled immediately! The tech who came out was extremely knowledgeable and not only investigated the spot, but searched the entire property. He showed up exactly at the scheduled time as well! Couldn't ask for a better experience and will definitely utilize them if we have any other issues! Thank you guys so much!
James P.
May 20, 2025
ATC Pest Control honestly and truly gives Outstandingly Great service! We've had a mouse problem, and although it's only been a few days since their visit, we've already seen a large decrease of any indication of the mice! It definitely looks like they're on their way out completely! Chris educated me very much on the phone, and Tyler actually continued with really great info with how to achieve the best results. In fact last year we had a rat problem in our small warehouse, and their convenient little bait stations worked perfectly to eliminate these larger rodents. A very trusted company AND very trustworthy people!
Kim Clinedinst
Apr 21, 2025
We have used ATC for several years and couldn't be happier with their service. The technicians are knowledgable and professional. Ian was just here last week and took the time to educate us on ant behavior and what not to do to keep them from spreading. If we ever have a problem with anything (ants, spiders, bees) we let them know and they come to treat asap. I highly recommend ATC!
Tactical Snuggy
Apr 12, 2025
Jaime Kaplan
Apr 06, 2025
Shannon
Mar 19, 2025
Cannot recommend this company highly enough. Honest, knowledgeable, ethical, responsive. Chris helped me out with a free consultation on an issue I was concerned about and couldnt have been more professioanl and kind. Will use them in the future for sure as its rare to come across this kind of service.
Ericatthebarrack
Feb 19, 2025
Ann Boyle
Nov 24, 2024
Dt
Apr 27, 2024
Ken Mason
Jan 07, 2023
Cathy Basil
Dec 14, 2022
Our kitchen was overrun with tiny ants that seemed unstoppable. ATC came in and treated our outside and inside, and within a week, we saw no ants, and we have not seen stink bugs, mice, spiders, and no other pests. ATC will treat our home and outside quarterly to keep us free of pests, and not seeing stink bugs is the icing on the cake!
Renee Edwards
Mar 04, 2021