Every fall, stink bugs flood through gaps in Maryland homes looking for somewhere warm to overwinter. We stop the invasion with exterior barrier treatments and exclusion — before they're inside and impossible to manage.
Stink bug control is a perimeter problem — not an interior one. We apply exterior barrier treatment to the surfaces where stink bugs aggregate before entering: sunny-facing walls, window and door frames, roofline edges, and utility penetrations.
Timing is critical. Treatment applied in late August or September, before peak aggregation, intercepts bugs before they establish inside. We also identify and seal significant structural gaps to reduce future entry pressure.
For homes with existing interior infestations, we treat accessible interior areas and discuss management options for spaces like attics where stink bugs tend to congregate in large numbers.
We serve homeowners throughout Columbia and its core neighborhoods — including Wilde Lake, Harper's Choice, Hickory Ridge, Oakland Mills, and Long Reach. Stink bug pressure is consistent throughout Columbia, but homes with more exterior sun exposure and wooded surroundings tend to see heavier seasonal aggregation.
Why do I have so many stink bugs in my house in fall?
Brown marmorated stink bugs seek warm, sheltered overwintering sites as temperatures drop in late summer and fall. They're attracted to sunlit exterior walls and enter through any gap they can find — gaps around windows, door frames, utility penetrations, vents, and siding seams. Maryland, including Howard County, is one of the most heavily infested regions in the country.
Is there a treatment that actually stops stink bugs from entering?
Yes. An exterior barrier treatment applied before peak entry season (late August through October) significantly reduces invasion. The treatment targets entry points and the exterior surfaces where stink bugs aggregate before entering. Timing matters — treating after they're already inside is far less effective.
When should I schedule stink bug treatment in Maryland?
Late August through September is the ideal window for Columbia, MD. Stink bugs begin aggregating on exterior walls before temperatures drop, and a well-timed exterior treatment intercepts them before they enter rather than treating an active interior infestation.
Can I vacuum up stink bugs or will that cause a smell?
Using a regular vacuum will cause odor and can damage the machine. A vacuum with a bag can be used carefully, but the bag needs to be removed and disposed of promptly. The better strategy is prevention — treating exterior surfaces before they enter is far more effective than trying to remove them once they're inside.
Do stink bugs cause structural damage?
No — stink bugs don't damage structures or bite people. The problem is nuisance and odor. However, their presence in large numbers can indicate structural gaps that could also be entry points for other pests. We note and address those as part of the service.
Can I seal my home to stop stink bugs without a treatment?
Exclusion (sealing gaps) is an important part of stink bug management, but it's difficult to achieve comprehensively in a typical home. Stink bugs enter through very small openings. Combining exterior barrier treatment with targeted exclusion of the largest entry points produces the best results.
Do you treat for stink bugs in Harper's Choice and Oakland Mills?
Yes — we serve all Columbia neighborhoods including Harper's Choice, Oakland Mills, Wilde Lake, Hickory Ridge, and Long Reach. Stink bug pressure is consistent throughout Columbia, but homes with more exterior sun exposure and wooded surroundings tend to see heavier aggregation.
Do stink bugs come back every year?
Yes — stink bugs overwinter and new populations repeat the entry cycle each fall. Properties that had heavy infestations one year are likely to see pressure again the following year without ongoing management. A seasonal exterior treatment program maintains control year to year.
Can stink bugs get into a house that has no visible gaps?
Yes. Stink bugs are adept at finding gaps that are invisible from the outside — the seal around a cable penetration, a slightly warped window frame, a gap behind siding at the roofline. Professional exclusion involves inspecting with that specific pressure in mind. Even well-maintained homes in Columbia see stink bug pressure in fall because of how persistent these insects are at finding entry.
What's the best way to dispose of stink bugs I find inside without causing odor?
Collect them in a sealed plastic bag or container and dispose of them outdoors — do not crush them. Dropping live stink bugs into a bowl of soapy water also kills them without triggering the odor defense. The best long-term approach is exterior barrier treatment in late summer so fewer make it inside in the first place.
Book before peak season — late August and September — and we'll treat your exterior before they're inside your walls.