Where Rodents Are Getting Into Lawrenceville Homes
Eight Entry Points Our Inspectors Find First in Lawrenceville’s 1990s Construction
Lawrenceville’s 1990s and early-2000s housing stock has had 25–35 years for minor construction tolerances to become functional entry gaps. These are the eight locations our technicians check first on every Lawrenceville property assessment.
Foundation Mortar Cracks
Settling mortar joints in brick and block foundations develop the ¼” gaps mice need with no structural failure. Particularly common on Lawrenceville homes that sat on expansive Gwinnett County clay soils.
Crawl Space Vents & Access
Open crawl space vent screens with aged or broken wire mesh — the primary entry route for Norway rats in Lawrenceville’s crawl-space construction neighborhood stock.
Utility Pipe Penetrations
HVAC lines, plumbing, gas, and electrical conduit entry points through foundation and siding — aging sleeve fittings develop gaps as weather and settling cause movement.
Garage Door Sweep Gaps
Compressed or aged weatherstripping on attached garage doors leaves ground-level gaps along the full door width — the most common single entry point in Lawrenceville’s attached-garage neighborhoods.
Roof Soffit & Fascia Gaps
Roof rats and squirrels use trees and adjacent rooflines to access aging soffit wood on Lawrenceville’s older neighborhoods. Particularly common where canopy branches overhang the roofline.
Dryer Vent & Exhaust Terminations
Dryer vent flap terminations that freeze open or lose spring tension provide unobstructed access to a heated interior space — a preferred entry point for house mice in cooler months.
Brick Weep Holes
Standard construction weep holes in brick veneer siding — typically 3/8” to 1/2” — are exactly the entry size a house mouse needs and are almost universally unsealed in Lawrenceville’s brick-front construction.
Cable & Conduit Entry Gaps
TV cable, internet conduit, and outdoor electrical feed points typically have significant gaps around the penetration sleeve — rarely sealed at initial installation and never re-sealed after service work.
