- (301) 829-0060
- Mt. Airy, MD
- info@pestshieldinc.com
Pest Shield has handled bee, hornet, wasp, and yellow jacket calls across Mt. Airy and the surrounding Carroll and Frederick County area since 2011, and stinging insect work is one of our most heavily reviewed service categories. Owner Troy Yowell brings roughly 35 years of pest management experience to every inspection, supported by a staff entomologist on hand for species-level identification when field ID isn’t conclusive. We hold MDA license #30263 and Maryland certified applicator credential #19058, and we’ve earned Best of Frederick MD Pest Control (2021) along with Best of Nextdoor honors four years running. Reviews on Google and HomeAdvisor reflect what customers tell us most often: we show up fast, give an honest assessment, and don’t push treatment when it isn’t needed.
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 bee calls start with a sighting — insects entering a gap in siding, clustering near a soffit, drilling perfect holes in a porch beam, or buzzing around a deck where children play. The hardest part for homeowners isn’t spotting the activity. It’s knowing what they’re actually looking at, because the right response depends entirely on the species.
Risk depends on location more than species. A bumble bee nest in a back corner of the yard rarely needs intervention. A nest inside a wall, near a doorway, beside a deck used daily, or anywhere on a property with a sting-allergic family member is a different conversation. Getting the identification right is the first step in deciding what — if anything — needs to be done.
60+ years of combined experience. Tell us what you’re seeing — we’ll come look, no obligation.
I called Pest Shield when we needed something done right away. We have a hornets nest and a wasp nest in bad places, three days before having a large gathering. Troy had a busy schedule, but agreed to come after 5:00 that evening. He got here shortly after 5:00, was friendly, thorough and professional, and took care of the nests (and two more we found). He explained everything, showed me what he could, and left excellent and detailed information. I’d hire him again any time we need that sort of service, and would definitely recommend Pest Shield.
Kai Hagen · July 2017 Read on HomeAdvisor →
We hired them to combat carpenter bees in our garage and the fascia boards of our roof. Service was excellent, prompt, and competent. Troy excelled in educating us. The bees are gone. We are very pleased and would use them again.
Susan Kulp · May 2015 Read on HomeAdvisor →
Bees had built a nest in an outside wall and were starting to show up in my basement. Troy came to the house within 3 hours and was able to stop the inside intrusion, and eliminate the nest. He was very knowledgeable and we were so happy with him, we will be retaining him for annual pest services.
Greg Droege · August 2014 Read on HomeAdvisor →
General pest & rodent control
Every bee call starts with a free inspection. Troy or one of our technicians comes out, identifies the species, locates the nest, and assesses the actual risk to your household. We don’t quote treatment over the phone for bee work, because what looks like a bee problem from the porch is sometimes a yellow jacket nest in the siding — and sometimes it’s a bumble bee colony in the yard that the homeowner can simply leave alone until fall. If our staff entomologist Jeffrey Allwine needs to confirm the species, samples go to him for lab identification.
The honest answer on relocation: honey bee colonies in wall voids and structural cavities are complex to remove alive, and Pest Shield is not a live-relocation service. What we do is give you a straight read on what you’re actually dealing with before recommending anything. If you have honey bees in a wall and want to pursue removal by a beekeeper, we’ll tell you that’s the right path and won’t pressure you toward treatment. If the species or situation makes treatment the appropriate call, we explain why and proceed only with your okay. This is the same approach customers describe in our reviews — including cases where Troy advised homeowners to do nothing and let nature handle the situation, when that was the best course.
When treatment is the right answer, here’s how the visit typically goes:
Stinging-insect work carries a seasonal warranty: if the treated nest shows activity again within the season, we return at no charge. The products we use are EPA-approved and applied with families in mind — multiple reviews document Pest Shield’s eco-friendly treatment processes and care around homes with children, pets, and family members with bee allergies. For nests in wall voids or other enclosed spaces, treatment is targeted directly at the cavity, so chemicals stay where the problem is rather than spreading through living areas.
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.
Mt. Airy straddles the Carroll and Frederick County line along Route 27, with neighborhoods reaching toward New Market, Damascus, Woodbine, and Westminster. The town sits on rolling, wooded terrain along the ridge between the Patapsco and Monocacy watersheds, with a mix of older farmhouses, mature subdivisions, and newer construction backing up to woodland and active farmland.
Those conditions shape the bee work we see here. Wooded lots and landscaped beds support bumble bee ground nests through summer, while older homes with wood siding, fascia boards, and screened porches give honey bees and carpenter bees the structural gaps and softwood they look for. Stinging insect calls in this area run heavy from late spring through early fall, peaking in July through September when colonies reach full size. For broader pest control in Mt. Airy, seasonal pressure from multiple pest types often overlaps with peak stinging-insect season.
Honest answer: it depends on the species and situation, and Pest Shield is not a live honey bee relocation service. Honey bee colonies in walls require specialized removal that’s typically handled by a beekeeper rather than a pest control company. When we come out for the free inspection, we’ll identify the species and tell you straight whether a beekeeper is the right call, whether the situation can be left alone, or whether treatment is genuinely warranted. We’d rather point you to the right resource than treat something that didn’t need it.
Body shape, color, and behavior are the quickest clues. Honey bees are golden-brown and fuzzy with steady, deliberate flight. Bumble bees are larger and very fuzzy, often black and yellow. Yellow jackets and wasps are sleeker, brighter yellow with sharp black banding, and fly fast and erratic. Nest location helps too — bees usually nest inside cavities or in the ground, while exposed papery nests under eaves are almost always hornets or wasps. If you’re not sure, send a photo when you call or let us take a look during the free inspection; if field identification isn’t conclusive, our staff entomologist Jeffrey Allwine confirms the species in the lab.
Yes. We use EPA-approved products applied with eco-friendly treatment processes — a pattern documented across our stinging-insect reviews. For nests inside wall voids or other enclosed spaces, treatment is targeted directly at the cavity, which keeps the chemistry where the problem is rather than spreading it around the yard. We’ve handled bee and hornet work for homes with young children, immunocompromised family members, dogs, and sting-allergic spouses, and Troy will walk you through what’s being applied and where before any product goes down.
Same-day response is common for active stinging-insect situations, and next-day is standard for non-emergencies. We’re based right here in Mt. Airy at 4075 Lomar Drive, so travel time within town and across the surrounding Carroll and Frederick County area is short. Sunday and after-hours response is available at no extra charge for situations that genuinely can’t wait — bees inside the living space, sting-allergic family members, or aggressive activity at a doorway. Call (301) 829-0060 and you’ll talk to Troy, office staff, or a technician directly — no call center.
Bee, hornet, wasp, and yellow jacket treatment carries a seasonal warranty — if the treated nest shows activity again within the season, we come back at no additional charge. We also call or text the day after treatment to confirm the activity has stopped, which is when most lingering issues come up. New, unrelated nests that appear later in the season are a separate situation, but Troy will tell you that straight when you call rather than treating a different nest under the original warranty.
