Posted February 14, 2026

Why Routine Pest Control Matters for Local Businesses

Rodent problems in commercial buildings almost never start inside the building. They start outside — long before anyone hears scratching in the walls.

Recently, Expello Pest Control performed a routine monthly commercial rodent service at a warehouse facility in West Haven, Connecticut. Like many industrial and storage buildings in New Haven County, the property itself was clean and well-maintained, but the structure and daily operations created conditions that naturally attract mice and rats.

This is extremely common with warehouses, distribution centers, and storage facilities throughout the shoreline area.

Why Warehouses Attract Mice and Rats

Commercial warehouses are one of the most frequent locations we find rodent activity in West Haven and the surrounding towns. Not because businesses are doing anything wrong — but because the building design works perfectly for rodents.

Rodents are looking for three things:

• Warmth
• Shelter
• Reliable food sources

Warehouses unintentionally provide all three.

Common risk factors we see:

• Overhead loading dock doors that open multiple times per day
• Small foundation gaps and siding separations
• Pallet storage and stacked materials along walls
• Dumpster and recycling areas near entry doors
• Exterior lighting that attracts insects (which attract rodents)
• Landscaping or mulch beds along the building perimeter

A mouse only needs a hole about the size of a dime to enter a structure. A rat only needs about the size of a quarter. Many commercial buildings have dozens of potential entry points that go unnoticed.

Why Commercial Rodent Control Must Be Ongoing

One of the biggest misconceptions property managers have is that rodent control is a “treatment.”

It’s not.

It’s a monitoring and prevention program.

By the time rodents are seen inside a warehouse, they have usually been living around the exterior for weeks or months. A one-time service may remove activity temporarily, but without exterior monitoring the problem almost always returns.

That’s why our service focuses on stopping rodents before they enter the building.

What Our Monthly Warehouse Service Includes

During the West Haven warehouse visit, we performed a full perimeter inspection and preventative maintenance service.

Each routine commercial visit includes:

Exterior Inspection

We walk the entire structure looking for:

• Entry gaps
• Foundation cracks
• Utility penetrations
• Door seal issues
• New burrows or nesting areas

Tamper-Resistant Bait Station Servicing

Commercial properties require properly secured exterior rodent stations.
These stations:

• Monitor activity
• Reduce exterior rodent populations
• Prevent migration indoors

Activity Monitoring

We track changes month-to-month. Rodent populations fluctuate seasonally in Connecticut — especially in fall and winter when mice begin seeking warmth indoors.

Harborage Recommendations

We also provide simple recommendations that dramatically reduce risk, such as:

• Moving stored materials off exterior walls
• Managing dumpsters and food waste
• Adjusting landscaping around the building
• Sealing structural openings

Why Prevention Saves Businesses Money

Rodent issues in commercial buildings aren’t just a nuisance — they can become expensive quickly.

Rodents can:

• Contaminate inventory
• Damage wiring and insulation
• Shut down operations
• Trigger health department violations
• Affect tenants or customers

Most large infestations we respond to started as small exterior activity that went unnoticed.

Routine monitoring prevents emergency situations.

Commercial Pest Control in West Haven & New Haven County

Expello Pest Control provides professional commercial rodent control and preventative pest services for:

• Warehouses
• Storage facilities
• Office buildings
• Restaurants
• Property management companies
• Multi-unit housing

We currently service businesses throughout West Haven, New Haven, Orange, Milford, North Haven, Hamden, Wallingford, and surrounding shoreline communities.

Our approach is simple: consistent service, clear communication, and predictable protection.

If you manage or own a commercial building and want to prevent problems instead of reacting to them, a proper exterior inspection makes all the difference.

Schedule a Commercial Inspection

If you’re hearing activity, seeing droppings, or just want a professional evaluation of your building, contact Expello Pest Control today.

Preventing a rodent issue is always easier — and less expensive — than fixing one.