- (301) 829-0060
- Mt. Airy, MD
- info@pestshieldinc.com
Pest Shield, Inc. has provided stinging insect removal across Frederick County since 2011, and wasp calls are among the most time-sensitive work the company handles. Licensed by the Maryland Department of Agriculture (MDA #30263), Pest Shield dispatches directly — when you call, you reach the people doing the work, not a scheduling center. Owner Troy Yowell has located and treated wasp nests in wall voids, exhaust vents, soffit cavities, and under siding across dozens of documented service calls, and the company holds 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.
Wasp activity that seems minor in June can become a genuine hazard by August. Brunswick’s mix of older in-town homes, wooded lots, and proximity to the Potomac River corridor creates conditions that wasps find reliably attractive — and late summer through early fall is when colonies reach maximum size and workers become most defensive.
The wooded Potomac corridor surrounding Brunswick provides natural nesting habitat — hollow trees, brush piles, and dense canopy — that supports large local wasp populations. As summer progresses and natural food sources compete, colonies near structures increasingly forage around homes. By late August and through October, colony populations peak and workers become noticeably more aggressive, making DIY removal significantly riskier than it is earlier in the season. A nest that seemed manageable in May is a different situation in September.
60+ years of combined experience. Tell us what you’re seeing — we’ll come look, no obligation.
Very quick and courteous service and extremely professional. Took care of my wasp problem the same day that I called.
Marianne Cholakian · September 2014 Read on HomeAdvisor →
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 →
I received a call back from Pest Control within minutes of submitting my yellow jacket problem on MyHome Advisor. On the phone, Troy explained his eco-friendly treatment process and cost and by early afternoon the problem was solved. I could not have asked for better service and price.
Don Housley · June 2013 Read on HomeAdvisor →
General pest & rodent control
Pest Shield’s approach to wasp removal starts with locating the nest — which is often the harder part of the job. Troy has treated nests in wall voids, under siding, inside exhaust vents, along soffits, in chimney areas, and in other locations that aren’t visible from the ground. He assesses the entry points, determines where the colony is established, and treats the nest and surrounding area directly. For nests in enclosed spaces, that means getting the product where the colony actually lives, not just treating the entry point.
After treatment, Troy stays on-site briefly to address returning wasps — foragers that were away from the nest during treatment and come back to find activity has stopped. This is a standard part of the service, not an add-on. Most wasp removal calls are resolved in a single visit.
| What to Expect | Details |
|---|---|
| Response time | Same-day or next-day for active wasp situations; emergency response available |
| Visit count | Single visit in the large majority of cases |
| Nest locations treated | Wall voids, soffits, exhaust vents, under siding, eaves, rooflines, outbuildings |
| Returning wasps | Addressed on-site; Troy stays briefly after treatment to handle foragers |
| Ongoing plan required | No — wasp removal is a discrete, single-visit service |
| Warranty | Seasonal warranty against nest return included |
Wasp removal does not require an ongoing service plan. This is a discrete service — Pest Shield resolves the nest, confirms the situation is clear, and the job is done. If wasps return within the warranty period, Pest Shield comes back. Troy also accounts for family members with sting allergies when planning treatment, and the products used are EPA-approved. Eco-friendly treatment processes are available for stinging insect work when the situation allows.
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.
Brunswick sits in the southwestern corner of Frederick County along the Potomac River, roughly 15 miles southwest of Frederick and accessible via US-340. The town’s older residential streets feature wood-framed homes with aging siding, wood trim, and soffit details that are common nesting targets for paper wasps and cavity-nesting species. Pest Shield serves Brunswick and the surrounding Frederick County communities from its Mt. Airy base, with same-day availability documented across the region.
The wooded Potomac River corridor that borders Brunswick to the south supports dense natural wasp habitat — hollow trees, brush lines, and canopy cover that sustain large local populations through summer. As colonies grow through August and September, foraging pressure on nearby structures increases. Homes with wooded lots, older wood exteriors, or unscreened utility penetrations are particularly likely to see nesting activity during this window. For broader pest control in Brunswick beyond stinging insects, Pest Shield covers the full range of seasonal pest pressure in the area.
Same-day response is standard for active wasp situations. Pest Shield dispatches directly — you reach Troy or a technician when you call, not a scheduling center — and stinging insect calls are treated as time-sensitive. Multiple customers across Frederick County have documented calling in the morning and having Troy on-site the same day, including after-hours and Sunday service at no extra charge. Call (301) 829-0060 to describe your situation and get scheduled.
Wasp removal is a discrete, single-visit service in the large majority of cases. Pest Shield locates the nest, treats it directly, and stays on-site briefly to address returning foragers — wasps that were away from the nest during treatment. A seasonal warranty is included: if wasps return to the same location within the warranty period, Pest Shield comes back. There is no ongoing service plan required or pushed for wasp removal.
Foraging wasps that return to a treated nest typically encounter the residual product and are eliminated within hours. Troy’s standard practice is to stay on-site briefly after treatment specifically to handle returning wasps that weren’t present when the nest was treated. You may see a small number of wasps in the area for a short period after treatment — this is normal and resolves quickly as returning foragers contact the treated nest site.
Pest Shield uses EPA-approved products for wasp removal, and eco-friendly treatment processes are available for stinging insect work. Troy accounts for family members with sting allergies when planning the treatment approach — this is documented across multiple service calls where allergic family members were present. For most exterior nest treatments, the treated area can be avoided briefly while the product sets; Troy will walk you through any specific precautions for your situation when he arrives. Homeowners concerned about bee control in Brunswick will find that similar safety considerations apply to that service as well.
Paper wasps — the most common structural wasp in Central Maryland — build open, umbrella-shaped nests with visible hexagonal cells, typically attached to eaves, window frames, or sheltered overhangs. Hornets (including bald-faced hornets) build large, enclosed gray paper nests that are usually more visible. Yellow jackets nest in wall voids, underground, or in enclosed cavities and are rarely visible as a nest. If you’re not sure what you’re dealing with, describe what you’re seeing when you call — Troy can often make a reasonable assessment over the phone and confirm on-site. Pest Shield handles all three; each has a dedicated service page if you want more specific information before calling.
