Mice Extermination on Long Island

You have mice in your Long Island home if you see dark rice-sized droppings under the sink or along baseboards, smell a musky ammonia odor in cabinets, hear scratching in walls at night, or find chewed corners on cardboard and pet food bags. Older Nassau County homes with knob-and-tube era framing offer dozens of interior travel routes, while Suffolk County houses backing to woods take on mice through basement rim joists and garage door corners. Kitchens and mudrooms are the most common activity zones. Grease marks along a baseboard indicate an established run and usually mean the population is several weeks old. A single mouse sighting during the day suggests overcrowding and warrants immediate treatment.

Bobby Bugs treats mice on Long Island as an entry-point problem, not a trap problem. Expect a full interior and exterior inspection, professional-grade snap and multi-catch traps in active runs, sealing of every accessible entry with steel mesh, and a follow-up inside the 60-day guarantee window.

1. 1Free phone triage confirming what you are seeing and where.
2. 2On-site inspection: interior runs, exterior perimeter, garage, basement or crawl, attic access if reachable.
3. 3Placement of tamper-resistant snap and multi-catch traps in active runs.
4. 4Sealing of accessible entry points with steel mesh, hardware cloth, and mortar-grade filler.
5. 5Exterior bait stations where appropriate and allowed by your community.
6. 6Follow-up visit inside 60 days to remove trapped mice and confirm activity has stopped.

Most Long Island mouse jobs are cleared in 10 to 21 days, with visible activity dropping within the first week after traps are set. A typical single family house catches the majority of the population inside two weeks, followed by a quiet week or two that confirms the interior is empty. Heavier infestations, or homes with unlimited exterior harborage such as wooded Suffolk lots, sometimes take a second follow-up. The 60-day guarantee covers reintroduction inside that window.

To keep mice out of your Long Island home, seal every exterior gap larger than a quarter inch with steel mesh, especially around utility penetrations, garage door corners, and dryer vents. Trim shrubs at least a foot off the siding and keep firewood at least twenty feet from the house. Store pet food and bird seed in metal or heavy plastic containers, never open bags. In older Nassau attached homes, share exclusion work with neighboring units where possible, since mice move through shared voids. Bobby Bugs leaves a short prevention checklist on the invoice.

• Visit our full services list.
• See every area we serve across Nassau, Suffolk, Queens, and The Bronx.
• See our rat extermination page.
• See our wildlife removal and trapping page.
• See our general insect treatment page.