Exterior Spider Barrier Program

Four seasonal treatments from spring through fall that keep spiders and insects from entering your home through the foundation, windows, and garage.

Utah homes deal with spiders year-round. In Davis County, hobo spiders, wolf spiders, and black widows are all common around foundations, window wells, and garages. Our exterior spider barrier program applies a protective treatment directly to the entry points spiders use to get inside. The full program includes four seasonal applications from early spring through late fall, keeping a consistent barrier in place when spiders are most active.

Why Spiders Are a Year-Round Problem in Utah

Spiders are active in Utah from early spring through late fall. During warmer months, they hunt and build webs around foundations, window frames, and exterior walls. As temperatures drop in fall, many species move toward the warmth of your home, pushing through gaps around windows, doors, and foundation cracks.

Davis County homes are especially prone to spider activity around window wells. Window wells collect debris, hold moisture, and provide sheltered hiding spots that attract both spiders and the insects they feed on. Foundations with landscaping beds close to the house also create favorable conditions for spiders to establish near entry points.

The most common spiders around Davis County homes include hobo spiders, wolf spiders, black widows, and various house spider species. Hobo spiders are ground-level hunters that frequently end up in basements and window wells. Wolf spiders are large, fast, and often found along foundations. Black widows prefer dark, sheltered areas like garages, window wells, and stacked firewood.

Without a barrier in place, spiders and other insects have direct access to your home’s exterior every day from March through October.

Is This Program Right for Your Home?

This program is designed for any Davis County home that wants consistent spider and insect prevention around the exterior.

This program is a good fit if:

  • You regularly see spiders around your foundation, windows, or garage
  • You have window wells that collect spiders and insects
  • You want to stop spiders before they get inside, not deal with them after
  • You have had hobo spiders, wolf spiders, or black widows around your home

If you already have spiders or other pests inside your home, we also offer interior pest control as a separate service. The exterior barrier prevents new entry. Interior treatment addresses active problems that are already established inside.

If you are dealing with wasps, hornets, or yellow jackets, we offer targeted treatment for active nests around eaves, gutters, soffit, and fascia. That service is separate from the spider barrier program.

Not sure what you need? Contact us and we can evaluate your situation.

What the Spider Barrier Program Covers

The full program includes four treatments per year, spaced through the active season. Each treatment covers the same application areas around your home.

Where We Apply the Barrier

The spider barrier is applied directly to your home’s exterior foundation, lower window frames, and window wells. We also spray the interior of attached garages on request. These are the primary entry points that spiders and crawling insects use to access your home.

The barrier works as a contact treatment. Spiders and insects that cross the treated surface are exposed to the active ingredient and are killed before they make it inside. The treatment is applied to surfaces, not broadcast into the air or yard.

Four Seasonal Treatments

The program includes four applications timed to the active pest season:

Treatment 1: Early Spring. The first application goes down as temperatures begin to warm and spider activity picks up. This establishes the initial barrier before insects begin migrating toward the foundation.

Treatment 2: Early Summer. A follow-up treatment refreshes the barrier heading into peak activity season. Spider and insect populations are highest during summer, so consistent coverage matters.

Treatment 3: Late Summer. The third application maintains the barrier during the second half of summer when insect pressure is still high and spiders are actively hunting around your home.

Treatment 4: Late Fall. The final treatment targets the fall migration period when spiders move toward warmth as temperatures drop. This is the application that helps prevent spiders from entering your home heading into winter.

How Long Each Treatment Lasts

Each application creates a barrier that lasts up to 45 days. The four-treatment schedule keeps coverage consistent from early spring through late fall. If you need an additional treatment between scheduled visits, we can apply one as needed during any month from March through October.

How the Spider Barrier Prevents Entry

The spider barrier is a residual surface treatment. It is applied to the exterior surfaces that spiders and insects contact when approaching your home. It does not repel them from a distance. Instead, it kills them when they cross the treated area.

This means the barrier is most effective on the surfaces where spiders actually travel: along the base of the foundation, around window well edges, on lower window frames, and on garage floor perimeters. These are high-traffic routes for ground-dwelling spiders like hobo spiders and wolf spiders.

The treatment is applied as a liquid and dries to a residual film on the surface. Once dry, it remains active for up to 45 days under normal weather conditions. Heavy rain or direct water contact can reduce how long it lasts, which is one reason the four-treatment schedule includes enough overlap to maintain consistent coverage.

What to Expect Through the Season

After the first treatment, you should notice fewer spiders and insects around the treated areas within the first week. Some spiders may still appear near the barrier as they come into contact with it. This is normal and means the treatment is working.

Over the course of the season, homes on this program typically see a significant reduction in spider activity around the foundation, in window wells, and inside attached garages. Interior spider sightings usually decrease as well, since fewer spiders are making it past the exterior barrier.

The program works best when all four treatments stay on schedule. Skipping a treatment creates a gap in coverage during the active season, which allows spider populations to reestablish near the foundation.

Common Questions About the Spider Barrier Program

Once the application has dried completely, treated surfaces are considered safe for contact. Drying time is usually a few hours depending on temperature and humidity. We recommend keeping pets and children away from treated areas until the application is fully dry.

Yes. The barrier is effective against most crawling insects that cross the treated surface, including ants, earwigs, and various beetles. It is not designed for flying insects, but crawling insects that approach through the foundation are covered.

This program treats the exterior only. If you have an active pest problem inside your home, we offer interior pest control as a separate service. The exterior barrier prevents new entry. Interior treatment handles what is already inside.

Yes. Individual treatments can be applied as needed during any month from March through October. However, the full four-treatment program provides the most consistent coverage and best results. A single treatment lasts up to 45 days and then protection fades.

We serve Davis County, Utah, including Bountiful, Layton, Kaysville, Farmington, Centerville, Clearfield, Syracuse, Fruit Heights, Woods Cross, West Bountiful, and North Salt Lake.

Get Started with a Free Estimate

Contact us to set up your spider barrier program.

Phone: 801-451-2220 Text: 801-893-8836