Pest problems often start long before you see a mouse running across the floor or ants appearing in the kitchen.

Rodents, insects, and other pests typically enter a home because they have found one or more of three things: food, water, or shelter.

Small gaps around the exterior, damaged roofing, plumbing leaks, overgrown vegetation, poorly sealed doors, and accessible food sources can all make a property more attractive to pests.

The good news is that many infestations can be prevented.

Here are 10 areas homeowners should regularly inspect to help keep pests outside where they belong.

1. Check Your Roof and Roofline for Entry Points

Your roof protects your home from more than rain.

The roofline contains several potential entry points for rodents, birds, insects, and wildlife, including:

• Roof vents
• Soffits
• Fascia
• Flashing
• Gaps around penetrations
• Damaged shingles
• Openings around roof edges

Mice can take advantage of surprisingly small openings, particularly when looking for warmth and shelter.

Attics are especially attractive because they are generally quiet, protected, and rarely visited by homeowners.

If you notice damaged roofing, deteriorated soffits, loose flashing, or other openings around the roofline, have them inspected.

A roofing contractor such as Action Roofing Ltd. can determine whether damaged roofing components need repair before they become potential access points for pests or moisture.

2. Look for Gaps Around Pipes and Utility Lines

Walk around the exterior of your home and look closely at anywhere something passes through the wall.

Common examples include:

• Plumbing pipes
• Electrical conduits
• Gas lines
• Cable connections
• HVAC lines
• Dryer vents
• Hose connections

Installers sometimes need to create openings larger than the pipe or cable passing through them.

Even relatively small gaps can provide opportunities for insects or rodents.

Pay particular attention to older homes where sealants and building materials may have deteriorated over time.

3. Fix Plumbing Leaks and Moisture Problems

Pests need water just like people do.

A small plumbing leak may provide a reliable water source for insects and rodents without being obvious to the homeowner.

Check:

• Under kitchen sinks
• Under bathroom vanities
• Around toilets
• Near water heaters
• Behind appliances
• Basements
• Crawl spaces
• Exterior hose connections

Watch for moisture, staining, mould, damaged cabinetry, musty smells, or unexplained water accumulation.

If you discover an ongoing leak or plumbing problem, a professional plumber such as Paton Plumbing Worx can identify the source and make the necessary repairs.

Removing moisture doesn’t guarantee pests will disappear, but eliminating reliable water sources makes the property less attractive to them.

4. Inspect Doors, Garage Doors and Windows

A door doesn’t need to be visibly open for pests to get inside.

Check exterior doors for gaps along the bottom and sides.

Pay particular attention to:

• Worn weatherstripping
• Damaged door sweeps
• Garage door seals
• Torn window screens
• Basement windows
• Sliding doors
• Doors that no longer close properly

Garages deserve additional attention because they frequently provide a transition point between outdoors and the interior of the home.

A mouse entering a garage may eventually find another opening leading into walls, crawl spaces, storage areas, or living spaces.

Stand inside your garage during daylight and look around closed doors. If you can clearly see daylight around the edges, those areas may deserve closer inspection.

5.

Check Exterior Paint, Caulking and Surface Damage

Exterior paint does more than improve how your home looks. It also helps protect siding, trim, fascia, and other exterior surfaces from moisture and weather exposure.

As exterior finishes age, you may start to see:

• Peeling or cracking paint
• Failed caulking
• Small gaps around trim
• Deteriorated wood
• Moisture-damaged areas
• Open joints around windows and doors

These damaged areas can sometimes create or expose small gaps that insects and other pests can use to access protected areas of the home.

During your seasonal pest inspection, pay attention to areas where paint, caulking, or exterior finishes are beginning to fail.

If your home’s exterior needs repainting or surface preparation, a professional painting company such as Balzer’s Brushing can help restore and protect exterior surfaces before deterioration becomes more extensive.

Painting alone is not a pest-control treatment, but maintaining the exterior of your home can make it easier to identify and correct gaps, damaged materials, and other potential entry points.

6. Inspect Your Foundation

The foundation is another important area to check.

Walk around your home and look for:

• Cracks
• Openings around utilities
• Damaged vents
• Gaps where different building materials meet
• Deteriorated sealants
• Openings into crawl spaces

Not every foundation crack represents a pest problem, but openings that connect exterior areas with protected spaces can provide access.

Crawl spaces deserve particular attention.

They are dark, protected, and often contain plumbing, insulation, ductwork, and other areas where pest activity may go unnoticed.

7. Make Food Difficult to Access

Pest prevention isn’t only about keeping pests outside.

You also want to remove reasons for them to stay if they get inside.

Store dry foods in properly sealed containers when appropriate, particularly:

• Cereals
• Grains
• Baking ingredients
• Pet food
• Bird seed
• Bulk foods

Clean crumbs and spills regularly and avoid leaving pet food accessible overnight when pest activity is a concern.

Garbage and recycling should also be managed carefully.

Exterior garbage containers should close properly and ideally be positioned away from obvious building entry points.

For rodents, consistent access to food can turn occasional activity into an established problem.

8. Reduce Clutter in Storage Areas

Rodents and insects prefer places where they can hide without being disturbed.

Basements, garages, storage rooms, sheds, and crawl spaces can become ideal environments when heavily cluttered.

Where practical:

• Keep storage organized
• Avoid large piles of cardboard
• Use durable storage containers
• Keep areas accessible for inspection
• Check items that have been stored for long periods

The goal isn’t to create an empty garage.

It’s to make signs of pest activity easier to detect.

Droppings, gnawing, nesting material, and damaged packaging are much easier to notice in an organized storage area.

9. Watch for Early Warning Signs

Pest problems are generally easier to manage when discovered early.

Watch for signs such as:

• Droppings
• Gnaw marks
• Scratching inside walls
• Unusual smells
• Damaged food packaging
• Nesting material
• Increased insect activity
• Ant trails
• Wasp activity around one location
• Damage around vents or exterior openings

Don’t assume that seeing one pest means there is only one pest.

Visible activity may represent only part of what’s happening inside walls, attics, crawl spaces, or other protected areas.

For example, repeatedly trapping individual mice may reduce visible activity without addressing how rodents are entering the property.

The underlying access points still need to be investigated.

10. Inspect Your Property Seasonally

Pest pressure changes throughout the year.

Spring

Ants and other insects become more active as temperatures increase.

Inspect the exterior and address moisture and entry points before activity increases.

Summer

Watch for wasps, ants, spiders, and other insects around decks, rooflines, sheds, gardens, and outdoor living spaces.

Fall

Fall is particularly important for rodent prevention.

As temperatures drop, mice and rats begin looking for protected places to shelter.

Inspecting potential entry points before colder weather arrives can help reduce the chances of rodents moving indoors.

Winter

Pay attention to scratching sounds, droppings, unusual smells, or other evidence of activity inside walls, attics, basements, and crawl spaces.

Pest Control Should Focus on the Cause, Not Just the Pest

Catching a mouse or spraying visible ants may address what you can see.

It doesn’t necessarily address why the pest problem started.

Long-term pest management should consider:

1. How pests are entering
2. Where they are nesting
3. What food sources are available
4. What water sources are available
5. What conditions are attracting them
6. How those conditions can be corrected

This is why inspection is such an important part of professional pest management.

A good pest-control strategy should address the current problem while also looking for ways to reduce the likelihood of it returning.

When Should You Call a Pest Control Professional?

Consider professional help when:

• You’re repeatedly seeing rodents
• You hear activity inside walls or ceilings
• You find droppings
• Ants repeatedly return after treatment
• You discover a wasp or hornet nest
• You’re unsure how pests are entering
• DIY treatments aren’t solving the problem
• Pest activity is spreading
• You want preventative protection

The earlier the source of the problem is identified, the easier it may be to prevent the infestation from becoming more established.

Protect Your Home With TAG Pest Control

TAG Pest Control provides residential pest-control services throughout Metro Vancouver and the Lower Mainland.

Our team helps homeowners deal with mice, rats, ants, spiders, cockroaches, bed bugs, wasps, hornets, wildlife, birds, and other common pest problems.

Our process starts by identifying the pest issue and understanding what’s contributing to it. From there, we can develop a treatment and prevention strategy appropriate for the property.

If you’ve noticed signs of pest activity or simply want to understand where your home may be vulnerable, schedule a pest inspection with TAG Pest Control.

Protecting your home starts with finding the problem before it becomes a bigger one.