Rodent Exclusion for Mice & Rats

Sealing around A/C wiring

If you’ve trapped a mouse or heard roof-rat scratching in the attic, you’ve solved only half the problem. Exclusion is the other half—and it’s what actually keeps rodents out for good. At TruPest Solutions (family-owned in Rialto), we specialize in rodent exclusion services that find every gap, seal every entry, and stop re-infestations before they start.

What Is Rodent Exclusion (and Why It Works)

Rodent exclusion means physically sealing the openings mice and rats use to enter your home. Instead of endlessly trapping what gets inside, we block access so new rodents can’t take their place. That means fewer headaches, less contamination, and real long-term relief.

• Mice can fit through ¼-inch gaps (pencil-size).

• Rats can squeeze through ½-inch openings (the size of a thumb).

In Rialto and Fontana, homes often have tiny, weather-worn gaps in stucco, eaves, roof lines, crawlspace vents, and around pipes—perfect doorways for rodents.

Our Exclusion Process (Step-by-Step)

1) Detailed Inspection & Species ID

We start with a full interior/exterior inspection to confirm mice vs. roof rats vs. Norway rats and map their travel routes, nests, and entry points. We check:

• Roof-to-wall intersections, soffits, fascia, and Spanish tile ends

• Attic and gable vents, ridge vents, roof returns, and eaves

• AC lines, plumbing penetrations, gas lines, and electrical conduits

• Garage door seals, door sweeps, and weatherstripping

• Crawlspace vents, foundation cracks, and gaps under siding or stucco

• Dryer vents and damaged vent caps

• Utility meter boxes and gaps behind them

• Fruit trees / fence lines that create rat highways to the roof

2) Prioritized Entry-Point Plan

You’ll get a clear, prioritized list of entry points with photos and plain-English notes. We start with primary access points (active use) and then secondary vulnerabilities (future risk).

3) Professional-Grade Sealing

We use rodent-proof materials that stand up to gnawing and weather:

• ¼” galvanized hardware cloth for vents & larger gaps

• Stainless steel or copper mesh (won’t rust) packed into crevices

• Polyurethane sealants / mortar for long-lasting bonds

• Metal door sweeps and threshold adjustments for garage & exterior doors

• Custom vent screens and weep-hole guards (when appropriate)

• Cap repairs for dryer/roof vents to block entry while preserving airflow

No foam and hope. We seal it to code and to last.

4) Targeted Removal (If Needed)

If rodents are still inside, we set species-specific traps in discreet, strategic locations. Once the home is sealed, inside population drops quickly because they can’t re-enter.

5) Follow-Up & Prevention

Rialto & Fontana pressure is year-round. We offer monitoring and maintenance—especially after wind, heavy rain, or exterior remodels that can create new gaps.

What We Look For (Common Rodent Gateways)

• Attic vents, gable vents, and roof returns with damaged screens

• Tile roof gaps at edges and ends (classic roof-rat entries)

• Unsealed pipe & wire penetrations (AC, water heater, cable, solar)

• Gaps under garage doors and worn door sweeps

• Crawlspace vents with broken screens or soil erosion

• Stucco cracks, siding transitions, and foundation gaps

• Dryer and bathroom vents with loose or missing flaps

• Overgrown shrubs or vines touching walls and rooflines

• Fruit-bearing trees (fallen citrus is a roof-rat buffet)

Why We Do It This Way

• Stops re-infestations: No open doors = no new rodents.

• Reduces health risks: Less contamination from droppings and urine.

• Prevents expensive damage: Protects wiring, insulation, ducting, and stored belongings.

• Less reliance on chemicals: Physical exclusion is the backbone of Integrated Pest Management (IPM).

• Saves money long-term: A solid seal-up beats endless cycles of trapping.

Homeowner Tips to Boost Your Exclusion

• Pick up fallen fruit; store bird seed and pet food in sealed containers.

• Keep trash lids tight and bins a few feet from walls.

• Trim trees and vines away from the roofline; reduce ivy on walls and fences.

• Fix leaks and standing water (AC condensation, hose bibs, irrigation).

• Replace worn weatherstripping and upgrade garage door seals.

Small habits make your home less attractive to mice and rats—and make professional exclusion last even longer.

Ready for a Rodent-Tight Home?

If you’re in Rialto, Fontana, or nearby communities, we can inspect, seal, and protect.

Call TruPest Solutions at 951-334-5288 to request your rodent exclusion inspection today. We’ll find the gaps, fix them right, and keep rodents out—for good.