- (301) 829-0060
- Mt. Airy, MD
- info@pestshieldinc.com
Pest Shield, Inc. has provided licensed pest management services across Frederick County since 2011, holding Maryland Department of Agriculture business license MDA #30263 and certified pesticide applicator credential MD Certified #19058. Owner Troy Yowell brings approximately 35 years of pest management experience to every service call, including bed bug work — and he is personally involved from the first phone conversation through the follow-up confirmation visit. Entomologist Jeffrey Allwine is on staff for identification support when field assessment needs a second set of expert eyes. Pest Shield carries a 5.0 rating across 338+ reviews on Google and HomeAdvisor.
How it works
Four steps. No surprises. Same answer whether it's your first call or your tenth.
You reach Troy or someone on his team directly. No call center, no dispatcher, no routing.
Same-day or next-day for most calls. Emergency stinging-insect situations and real-estate WDI deadlines get priority.
We identify the species, locate entry points, and find the source — not just the symptom.
Written recommendation, straightforward pricing, no obligation. If you don't need treatment, we'll tell you.
Most people who suspect bed bugs aren’t sure — and that uncertainty is part of what makes the experience so stressful. Bed bugs (Cimex lectularius) are small, flat, and skilled at hiding in seams, gaps, and crevices where they’re rarely seen during the day. What you’re more likely to notice first are the signs they leave behind.
Bed bugs are not a cleanliness issue. They travel — in luggage, on used furniture, in the belongings of guests. In a small, close-knit community like Woodsboro, where furniture changes hands between neighbors and families and Route 194 connects residents to lodging corridors in both directions, exposure opportunities are ordinary and unremarkable. Finding bed bugs in your home says nothing about how you keep it.
If you’re seeing any of these signs and aren’t certain what you’re dealing with, a free inspection is the right first step. Bed bugs are frequently misidentified — and treating for the wrong pest wastes time and money while the actual infestation grows.
60+ years of combined experience. Tell us what you’re seeing — we’ll come look, no obligation.
It was a horrible discovery when we realized we had brought bed bugs to our home from a hotel we had stayed in. I called Troy in an absolute panic and he was so kind, patient and helpful. He spent over an hour on the phone with me, educating me all about bed bugs and how to get rid of them. I called back twice more before he came to service our home because I was so upset and he truly helped ease my fears. When he came he was prompt, thorough, and professional. I also greatly appreciated how he scheduled a follow up to make sure the problem was taken care of. We were SO grateful with the new technology and spray Troy uses that was safe for our children and dog, left no smell, and completely eradicated the problem. Troy is honest, extremely kind, unbelievably knowledgeable, priced very fair, and more than capable of handling bug problems. We couldn’t recommend him more!
Alexandra Edwards · January 2023 Read on Google →
We hired Pest Shield despite the fact that their price was more than double some of the other companies I interviewed. The reason we did is because unlike the other companies, Pest Shield uses heat as a treatment. After doing my online research, I decided it was worth the extra money to do so. The first round of heat didn’t completely work – the next day, Troy from Pest Shield and I found live bed bugs in some of the blankets. Troy was true to his word, and reheated the upstairs for free and did additional treatments. It appears this second heat treatment was completely effective.
Marc Shiman · April 2014 Read on HomeAdvisor →
I had bed begs. Troy and his team got rid of them (so far). It has only been a few days but I was very impressed with the professionalism, honesty and expertise he provided to me. His pricing compared to his competitors was great as well! I was so impressed I referred him to my parents for termite treatment before he even did the treatment in my home. I would definitely recommend Troy and Pest Shield to others, and would hire Troy again in a second!
Alison Harris · November 2013 Read on HomeAdvisor →
General pest & rodent control
Pest Shield offers two documented treatment methods for bed bug elimination, and Troy determines which approach — or combination — fits your situation based on the inspection. The first thing most customers notice is that Troy spends significant time on the phone before the first visit, walking through what bed bugs are, how the treatment works, what you’ll need to do to prepare, and what to expect at each stage. That conversation happens before any commitment, and customers can call back with questions — Troy has been documented accepting multiple callbacks patiently from distressed callers before ever scheduling service.
The two treatment methods Pest Shield uses for bed bugs:
Bed bug treatment follows a bounded multi-visit protocol — typically two to three visits spaced approximately two weeks apart. The spacing is not arbitrary: bed bug eggs are resistant to treatment, and the follow-up visits target newly hatched nymphs before they can reproduce. A single treatment, regardless of method, does not account for the egg hatch cycle. The protocol is complete when a follow-up inspection confirms no remaining activity — not simply when the scheduled visits are finished.
What the process looks like in practice:
When the work is done, you’ll know what was found, what was treated, and what to watch for. The bio-pesticide option is documented as safe for homes with children and pets; Troy proactively advises on any precautions around treated areas so there’s no guesswork. If you have questions after treatment, you can call or text — the same person who did the work is the one who answers.
Owner
Founded Pest Shield in 2011 after years as a pest management contractor on U.S. military bases in Iraq and Afghanistan. Around 35 years in pest management. Personally handles or leads the majority of service calls.
Pest Management Specialist
Field technician handling residential and commercial service calls across Frederick, Carroll, and Montgomery counties.
Pest Management Specialist
Field technician handling residential and commercial service calls across the service area.
Our Entomologist
Consulting entomologist on species identification, conducive conditions, and treatment strategy for difficult cases.
Woodsboro is a small Frederick County community in the northeastern corner of the county, situated along Route 194 between Walkersville and the Carroll County line. Pest Shield serves Woodsboro and the surrounding Frederick County communities — including Walkersville, Woodsboro, New Market, and Frederick itself — from its Mt. Airy base, with same-day and next-day scheduling available across the service area.
Older homes common to Woodsboro and rural Frederick County — with wood plank flooring, plaster walls, and older baseboard construction — tend to offer more harborage points for bed bugs than newer construction. Gaps in flooring, loose trim, and aging wall cavities give bed bugs more places to shelter between treatments, which is one reason the bounded multi-visit protocol and thorough inspection matter more, not less, in homes with older building stock. For broader protection against the full range of pests common to the area, pest control in Woodsboro is available as a year-round service alongside targeted bed bug treatment.
Bed bug elimination typically requires two to three visits spaced approximately two weeks apart. The spacing is determined by biology: bed bug eggs are not killed by the same treatments that eliminate live bugs, and the follow-up visits target newly hatched nymphs before they can reproduce and re-establish the infestation. A single treatment — regardless of method — does not account for the egg hatch cycle. Pest Shield schedules a confirmation visit after the treatment cycle to verify the infestation is fully resolved, and re-treats at no charge if activity is still present.
Yes — Pest Shield’s bio-pesticide spray option is documented as safe for children and pets and leaves no residual odor. Troy proactively advises on any precautions to observe around treated areas so you know exactly what to expect. If heat treatment is used, standard precautions apply during the treatment window, and Troy walks you through those before the visit. Either way, you’ll have a clear picture of what’s safe and when before the technician arrives.
Troy covers preparation specifics during the pre-service phone conversation — what to move, what to launder, how to handle bedding and clothing — so you’re not guessing. Preparation requirements vary depending on which treatment method is recommended for your situation. The pre-service call is a standard part of how Pest Shield works: customers understand what to expect before the first technician arrives, which reduces stress and helps the treatment go as effectively as possible.
Pest Shield re-treats at no additional charge if the infestation isn’t fully resolved. This guarantee is documented: when a first heat treatment didn’t completely eliminate an infestation, Troy re-heated the home for free and applied additional treatments until the problem was confirmed resolved. The follow-up visit built into the standard protocol exists specifically to catch any remaining activity — it’s not an afterthought, it’s part of how the service is structured.
Re-infestation is possible after successful treatment if the original source of exposure isn’t addressed — a piece of used furniture, a travel bag, or a recurring visit from an infested location. The treatment eliminates the current infestation; it doesn’t create a permanent barrier against future introduction. Troy discusses likely exposure sources during the inspection so you understand how the infestation arrived and what, if anything, to watch for going forward. If you see signs of activity after the confirmation visit, call Pest Shield — that’s what the no-charge re-treatment guarantee covers.
