Mouse and Rat Control with Exclusion

Choose trapping-only when you found a single mouse in a snap trap, the droppings are in one room, and the house is a newer tight build — that visit removes the animal and tells you whether more are behind the wall. Choose trapping plus exclusion when you are finding fresh droppings in more than one room, hearing scratching in the ceiling at night, or you have already killed several mice and they keep coming back. The trade-off is honest: exclusion costs more up front and takes longer on site, because someone is on their knees at the foundation line and on a ladder at the roof edge counting openings. What you buy is the end of the cycle instead of another round of traps in six weeks.

Upper Marlboro's housing stock creates specific rodent routes, and we look for them by name. In the newer developments — Beechtree, Marlboro Ridge, Oak Creek — the openings are usually construction gaps rather than deterioration: the bottom corners of the garage door where the seal curls away, brick weep holes without guards, unsealed pipe and A/C line penetrations, and dryer vent flaps that no longer close. A mouse fits through a gap the width of a pencil, and a Norway rat through one the size of a quarter, so these look like nothing until you see the grease marks around them. In the Old Marlboro Historic District and older sections of Marlboro Meadows, the problem is different: stone-and-block foundations, gaps at the sill plate where the framing meets masonry, split-level utility chases, and crawlspace vents with rusted screening. Melwood and Croom homes on wooded or field-adjacent lots take the heaviest pressure in October and November, when white-footed mice and house mice leave the tree lines and meadows near Patuxent River Park, Jug Bay and Merkle Wildlife Sanctuary and test the warm side of every foundation they cross.

A typical sequence looks like this. Visit one is diagnosis and trapping: we identify the species from the droppings — mouse droppings are rice-grain sized and pointed, rat droppings are noticeably larger and blunter — then place traps along the walls and runways where the animals are actually traveling, not in the middle of the floor. We photograph and list every entry point. Visit two removes catches and begins sealing, working from the ground up: garage door sweeps, foundation gaps, vent screening, pipe collars, then roof-line and soffit openings if the activity is in the attic. Bait stations, when used outdoors, are tamper-resistant and placed away from the areas your kids and dogs use. Interior work in occupied rooms is trap-based for exactly that reason. Ask us about re-entry timing before we start and you will get a straight answer, not a shrug.

Two things we will tell you plainly. First, rodents chew, so exclusion is a maintenance item — a sealed home stays sealed for years, but a new deck footing, a replaced HVAC line, or a settling garage slab can open a fresh gap. Second, if the pressure on your lot is constant because you back to woods, a hayfield, or the drainage near Schoolhouse Pond, exterior monitoring stations checked a few times a year cost far less than repeating the whole job. That is your choice to make, not a package we bolt on. Identify the pest, seal the entry — then we get out of your kitchen. Call (240) 892-5089 to set up the inspection.