- (301) 829-0060
- Mt. Airy, MD
- info@pestshieldinc.com
Pest Shield, Inc. has served Frederick County homeowners since 2011, operating under Maryland Department of Agriculture license MDA #30263 with certified applicator Troy Yowell holding MD Cert #19058. Troy brings approximately 35 years of pest management experience to every job, including bed bug work — and the company’s staff includes Jeffrey Allwine, a credentialed entomologist available for species-level identification when the situation calls for it. Pest Shield has earned Best of Frederick recognition (2021) and Best of Nextdoor four consecutive years (2021–2024), with 338+ five-star reviews across 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.
Bed bugs — Cimex lectularius — are small, flat, reddish-brown insects that feed on blood while you sleep. Most Myersville homeowners don’t find them until the infestation is already established, because the early signs are easy to dismiss or misattribute. Knowing what to look for makes a real difference in how quickly you can act.
Bed bugs don’t arrive because of poor housekeeping. In Myersville and the surrounding Frederick County area, the most common vectors are travel (a hotel stay, a college student returning home, a guest visit), secondhand furniture, and occasionally shared walls in older multi-unit properties. The infestation source is often genuinely unclear to the homeowner — that’s normal. What matters is that bed bug populations grow quickly once established, doubling roughly every two to three weeks under favorable conditions. Acting on early signs is significantly easier than addressing a mature infestation.
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
Every bed bug engagement starts with a free inspection. Troy or a Pest Shield technician assesses the scope of the infestation — which rooms are affected, how established the population is, and what harborage areas are involved — before recommending any treatment. That assessment directly determines which treatment method is appropriate. Pest Shield does not apply a default protocol; the method follows the infestation.
Pest Shield uses two documented treatment approaches for bed bug elimination:
| Method | How It Works | Best For |
|---|---|---|
| Heat Treatment | Raises room temperature to levels lethal to bed bugs at all life stages, including eggs. Non-chemical. No residue. | Established infestations across multiple harborage areas; situations where chemical application is not preferred |
| Bio-Pesticide Spray | Newer spray technology documented as safe for children and pets, leaves no residual smell, and penetrates harborage areas that heat can miss. | Situations where heat logistics are impractical; homes with specific safety considerations; targeted follow-up treatment |
Both methods are documented in Pest Shield’s customer history. Troy spent over an hour on the phone with one Myersville-area customer before scheduling — walking through bed bug biology, what the treatment would involve, and what to expect at each stage — because she called in a panic and needed to understand the situation before she could make a clear decision. That kind of pre-service education is standard, not exceptional, for Pest Shield.
Bed bug treatment is a bounded multi-visit process. A single application — regardless of method — cannot eliminate an entire infestation, because bed bug eggs are resistant to most treatments and hatch on a roughly 7–10 day cycle. The standard Pest Shield protocol involves:
That no-charge re-treatment commitment is documented: when a heat treatment didn’t fully resolve an infestation on the first application, Troy re-heated at no charge and applied additional treatments until the problem was confirmed eliminated. Most cases are resolved within 3–6 weeks from initial treatment to confirmation.
On safety: the bio-pesticide spray option is documented as safe for homes with children and pets and leaves no residual odor. Heat treatment is entirely non-chemical. Troy will discuss preparation requirements — what to move, what to launder, how to handle pets on treatment day — during the inspection or pre-service call, so there are no surprises. For families with young children or pets, both available methods have been used successfully in those settings.
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.
Pest Shield operates out of Mt. Airy and serves all of Frederick County, including Myersville and the surrounding communities along US-40 and I-70 — Middletown, Boonsboro Road corridor, and the western Frederick County foothills toward South Mountain. Same-day and next-day scheduling is standard, and Sunday service is available at no extra charge.
Myersville’s bed bug patterns reflect its residential, rural-adjacent character. Infestations here typically trace to travel — hotel stays, college students returning home for breaks, or visiting family — rather than the building-to-building spread common in denser housing. Older farmhouses and single-family homes with more varied furniture and textile histories can also harbor undetected populations longer before signs become obvious. For broader pest control in Myersville, Pest Shield’s year-round services address the full range of pests common to this area.
The most reliable confirmation is a direct inspection — bed bugs are visible to the naked eye, and their signs (dark fecal spotting, shed casings, and live insects in mattress seams or box spring folds) are distinct from other pests. Bites alone aren’t a reliable indicator, since reactions vary widely and other insects can produce similar marks. If you’re seeing small rust-colored spots on bedding, pale shed skins along mattress seams, or tiny reddish-brown insects in the folds of upholstered furniture, those are strong indicators. Pest Shield offers a free inspection — Troy or a technician will assess the situation directly and tell you exactly what you’re dealing with before any treatment is recommended. Jeffrey Allwine, the company’s on-staff entomologist, is available for species-level identification when field ID isn’t conclusive.
Heat treatment raises the temperature in affected areas to levels lethal to bed bugs at every life stage, including eggs — it’s non-chemical and leaves no residue. The bio-pesticide spray is a newer technology documented as safe for children and pets, with no residual odor, and it penetrates harborage areas that heat can sometimes miss. Troy assesses each infestation individually during the free inspection — the scope of the infestation, which rooms and harborage areas are involved, and the household’s specific circumstances (children, pets, layout) all factor into the recommendation. Neither method is a default; the treatment follows what the inspection finds.
Bed bug treatment is a bounded multi-visit process — typically 2–3 visits spaced approximately 2 weeks apart, with a follow-up confirmation visit to verify eradication. The spacing is determined by biology: bed bug eggs are resistant to most treatments and hatch on a roughly 7–10 day cycle, so the second visit addresses newly hatched nymphs that survived the first application as eggs. This is standard protocol, not a sign that the first treatment failed. Most cases are fully resolved within 3–6 weeks from initial treatment to confirmation. If any live activity is found at the confirmation visit, Pest Shield re-treats at no additional charge — that commitment is documented in Pest Shield’s service history.
Yes — both treatment options Pest Shield uses have been applied successfully in homes with children and pets. The bio-pesticide spray is documented as safe for children and pets and leaves no residual odor. Heat treatment is entirely non-chemical. Troy will walk you through specific preparation steps — what to launder, how to handle pets on treatment day, what to move — during the inspection or pre-service call, so you know exactly what to expect before the technician arrives.
Pest Shield’s no-charge re-treatment commitment covers situations where the treatment doesn’t fully resolve the infestation. This is documented: when a heat treatment didn’t eliminate all activity on the first application, Troy re-heated at no charge and applied additional treatments until the problem was confirmed gone. The follow-up confirmation visit is built into the standard protocol specifically to catch any remaining activity before the engagement closes. If you see signs of bed bugs after treatment is complete, call Pest Shield directly at (301) 829-0060 — Troy or the team will assess and address it.
