Groundhog Trapping, Removal & Exclusion

Our Groundhog Removal Process

The inspection comes first: we walk the property and map the whole burrow system — the main entrance with its telltale dirt apron, plus the escape holes groundhogs hide in plantings and along fence lines. Knowing every door matters, because our trapping method depends on it.

Trapping at the Burrow — Not Baiting the Neighborhood

Here's an industry secret worth knowing: groundhogs are lousy customers for baited traps. Set a cage with cantaloupe in it and you'll meet every raccoon, opossum, and stray cat on the block before the groundhog under your porch shows the slightest interest. Companies that bill per animal caught don't mind this arrangement at all — you're paying for bycatch.

We work the problem from the other end. Our traps mount directly over the active burrow openings, so the only way in or out of the den runs through them. No bait, no neighborhood buffet, no padding the invoice — the animal in the trap is the animal that was digging under your structure, full stop. (Once in a while a second species is sharing the burrow, and then we catch that freeloader too — but you'll know it came out of your hole.) This equipment is expensive and takes a beating, which is exactly why most outfits won't run it. We run it because it catches groundhogs.

Monitored Traps, Fast Response

A trap mounted on a burrow temporarily plugs that doorway, so speed matters once it fires. Our sets are camera-monitored — when a trap closes, we know, and we're out promptly to remove the animal and reset. No groundhog sits in a cage through a hot afternoon, and the trapping sequence keeps moving instead of stalling for days.

The "Traps-by-the-Day" Trap

Before you hire anyone, understand the most common pricing gimmick in groundhog work: a flat fee to leave traps on your lawn for a set number of days. Read that offer carefully — it guarantees the presence of traps, not the removal of anything. When the clock runs out on an empty cage, you're invited to buy more days. We quote the job, not the calendar.

After the Animal: Fill, Reinforce, Exclude

An empty burrow is an invitation — to the next groundhog, or to something worse moving into the vacancy. Once trapping is complete we fill and compact the access tunnels, assess whatever has settled or shifted (sometimes a stoop or walkway needs re-leveling before barrier work), and then install the permanent fix: heavy buried barriers around the vulnerable structure, set deep with a horizontal footer that defeats digging. Where barrier shows above grade, it's finished and color-matched so the protection doesn't cost the property its looks.

Biology & Behavior

The groundhog (Marmota monax) — woodchuck, whistle pig, Punxsutawney's favorite son — is the largest squirrel in Pennsylvania, with adults running 8 to 14 pounds. They're daytime animals, busiest in early morning and late afternoon, and they're herbivores with industrial appetites: clover, garden vegetables, ornamentals, upwards of a pound of greenery a day.

The burrow is the real marvel. A mature system has a main entrance marked by its mound of excavated soil, hidden escape holes, a sleeping chamber, even a separate latrine — with tunnels running several feet down and extending dozens of feet laterally. They're also Pennsylvania's only true hibernator of this size, sleeping from roughly late October to late February, which conveniently defines the working season.

What a Burrow Does to a Foundation

Undermining. Tunnels create voids, and voids let things sink. Burrows along foundations invite settling, cracks, and water infiltration; burrows under patios, stoops, sidewalks, and retaining walls tilt and drop them. A masonry repair bill makes groundhog removal look like pocket change — which is why masons and landscapers around here hand out our number.

The garden massacre. One groundhog can level a vegetable garden in under a week and works through ornamental beds nearly as fast. They'll also gnaw deck posts, fencing, and the occasional buried utility line.

The vacancy problem. Abandoned burrows don't stay abandoned. Other animals happily move into groundhog excavations — so an untreated empty burrow is the opening act of your next wildlife problem. (It's also worth knowing groundhogs are themselves a rabies vector species in Pennsylvania: keep your distance, always.)

The Working Calendar: March Through October

Emergence comes in late winter — males ranging for mates almost immediately, females denning up to deliver litters of four to six in mid-spring. By early summer the young are above ground and eating, which is when garden complaints surge; by late summer they disperse to dig starter burrows of their own. Come October the feeding turns frantic ahead of hibernation, and then the season closes underground.

The strategic windows: early spring, before litters arrive, or mid-to-late summer, once juveniles have scattered. We work the whole active season — but if a burrow appears in April, calling promptly beats waiting for a family.

Barriers Beat Repeat Business

Trapping without exclusion is a revolving door — attractive habitat refills itself, and an open burrow refills fastest of all. Our buried barriers around foundations, sheds, decks, and walls go deep and turn outward in an L, so a digging groundhog hits steel no matter the angle of attack. For gardens we install fencing that continues below grade, where the actual battle happens.

One sequencing note from hard experience: skip the repellents and deterrents while the animal is still in residence — they tend to relocate the problem a few feet rather than solve it, and can complicate trapping. Animal out, barrier in, then make the property unappealing. Full-property protection lives on our Wildlife Exclusion page.