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Fall Pest Exclusion and Sealing in Columbus, OH

Finding and closing the gaps in a building’s outer skin before the cold months, so fall insects have fewer routes and fewer warm spots.

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Exclusion

Fall Invader Exclusion and Sealing: what it covers

Quick answer

Fall pest exclusion closes the gaps that let insects move from outside into a Columbus home before cold weather. OSU Entomology’s Joe Boggs says these insects seek warm spots between walls, around window casings, in door jambs and in attics, and suggests shop vacuums and light traps for removal. Sealing comes before any residual.

Fall Invader Exclusion and Sealing illustration for Columbus, OH

Exclusion is the quiet service. Nothing is sprayed and nothing is visibly dead when the work is finished. What changes is the number of routes into the house, and that number is what keeps the next autumn from being a surprise. A good exclusion job looks as ordinary as a caulking job, and it is judged by what does not come in over the following months.

The reason it matters in Columbus is the pattern that OSU’s entomologist describes. Fall insects look for warm spots between walls, around the window casings and door jambs, and sometimes in attics. Those are the places where a sealing job does most of its work, and they are where this page starts.

Service area
Columbus & Franklin County
Availability
Phone answered 24/7
Warning signs

Signs you need fall invader exclusion and sealing

Work from a stable ladder on firm ground, with someone nearby. Keep the ladder away from overhead power lines and do not reach across a gap from an unsteady position. Use a mask or respirator when cutting or sanding foam, and keep pets and children out of the area while caulk or foam is applied.

  • A light showing through a gap at a window corner or a door threshold when the room is dark
  • A draught moving a curtain or a loose sheet of paper on a still day
  • A dark line of grime on the inside of a window frame, where insects have walked in
  • A gap in caulk at the joint between a window and the siding
  • Open vents in the soffit with no screen in place
  • A cable or pipe entering the house through a ragged hole with no collar
Our process

How our fall invader exclusion and sealing visit works

  1. Walk the outside at the right height

    The technician looks at the building from ground level and from a ladder, since some gaps are only visible from above. Gaps around window casings and door jambs get close attention.

  2. Test each gap with light and touch

    A flashlight held behind a frame shows light through a gap, and a hand near a frame feels a draught. Both checks catch what the eye outside can miss.

  3. Seal the gaps in order

    Large holes come first, then joints, then fine cracks. Foam goes into deep openings and caulk onto surface joints. Each sealed point is marked on the plan.

  4. Fit screens and weatherstripping

    Vents are screened and worn door sweeps are replaced. These wear out and let gaps return, so the plan notes the date they were fitted and when to check them.

  5. Check from inside on a bright day

    A final pass with the room dark and the window lit shows any gap still letting light through. Those are added to the list rather than left for November.

Where do fall insects get into a Columbus house?

They get in at the gaps the building has always had: window and door frames, siding joints, soffit vents and the points where a cable, pipe or vent passes through the wall. OSU’s account names the window casings, the door jambs and the attic as the warm spots they seek.

A window casing is the most common route because it is made of several pieces that meet at corners. Over the years the caulk shrinks or cracks at those corners, and a gap opens that is hard to see from a distance. The gap is often only a few millimetres, which is still enough for a small insect to pass.

Door jambs are the second group. A worn sweep or a threshold that has moved leaves a gap along the bottom or the side of the door, and a sheltered wall void behind the jamb is an attractive place to settle. The technician checks the seal along the door’s full edge.

What does OSU suggest for removal, and how does it fit the sealing?

Joe Boggs of OSU Entomology suggests shop vacuums and light traps for insects that have got inside. The sealing stops the next arrivals, and the vacuum and traps deal with the ones already in the house.

A shop vacuum removes insects from a window track, a curtain fold or a corner of a room, and it leaves no stain. The bag is sealed and removed from the house. Light traps are placed in rooms where insects gather, and they catch the ones that move toward a light in the warm hours.

Those tools are for the insects inside. They do not close a route in, and a homeowner who relies on them alone will see the numbers return. The sealing list is what changes the number over the season.

Does sealing work better than a spray?

Sealing is the step that lasts. A spray can reduce insects on a surface for a time, but it does not close the route. A residual is a longer-term addition on top of sealing, and it is considered after the gaps are closed.

A spray works on the insects it reaches and for as long as the product stays active. A gap works all the time. Once it is closed, it stops letting insects through on every warm day of the season, which is why exclusion is treated as the first step in a fall plan.

The two can be combined. A sealed building can still have a residual placed where insects gather, and that residual is more effective because the number of new arrivals is lower. The report says which parts were sealed and which were treated.

What materials suit each gap?

Caulk suits small joints, expanding foam suits deeper openings, and screens suit vents. Weatherstripping and a door sweep close the gap under an exterior door. Each is chosen to stand up to sun and cold.

Caulk for exterior use is tooled into the joint so it sits in the joint rather than on top of it. Foam suits openings such as the gap around a cable through a rim joist. Exposed foam is trimmed and covered or painted to protect it from sunlight.

Screens belong on vents and open soffit spaces. A door sweep closes the gap under an exterior door, which is often the largest gap in an older house. The technician names the material used for each point and says how long it should last before the next check.

How often should the sealing be checked?

Check the sealing once a year, in late summer, and after any storm or freeze that could move a joint. The check focuses on the points sealed last time and any new gap since.

A yearly check suits most Columbus houses, but the interval depends on the building. A house with wood siding may move more than one with brick on all sides. The technician sets the interval on the first visit and writes the reason in the report.

The check is short. The inside light test is repeated, the screens and sweeps are looked at, and the outside is walked at the points that moved. Anything new is sealed while the technician is there, so the next season begins with a clean list.

Options

Types and options for fall invader exclusion and sealing

Single-room exclusion

Sealing confined to one room where insects keep appearing, such as a bedroom with a window on the warm side of the house.

Whole-building exclusion

A full pass around the outer skin with a written list of each gap found and sealed. It suits an older house or one with repeated invasions.

Pre-season top-up

A shorter visit in late summer to check the sealing from the last season, replace worn screens and close gaps that opened in the heat.

Franklin County

Why fall invader exclusion and sealing is different in Central Ohio

The fall pattern in Columbus follows the weather more than the calendar. A warm afternoon in late September can start the activity, which is why the sealing should already be finished by then.

Older houses in the core of Columbus, in neighbourhoods built in the early twentieth century, often have more gaps around window casings than newer builds. The check is about the building in front of the technician.

The sources do not describe a seasonal start date for fall insects in Franklin County, so the sealing is planned for before the first warm autumn spell rather than for a fixed date.

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Where we work

Fall Invader Exclusion and Sealing across Franklin County

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Related

Attic and Upper-Story Pest Control

An attic-first visit for stink bugs and fall insects, with the roof line, the eaves and the upper rooms checked and sealed in order.

General Pest Control

An inspection-led visit for the pests Ohio sources describe in Columbus homes, with treatment limited to what the inspection finds.

Guides

Read before you book

Boxelder and Leaf-Footed Bugs in Columbus Homes

OSU Extension fact sheet HYG-2106 says boxelder and leaf-footed bugs enter mostly through gaps around doors, windows and roof soffits, and cause no structural or food damage.

A Fall Invader Checklist for Columbus Homes

OSU Entomology’s Joe Boggs says fall insects seek warm spots between walls, around window casings, in door jambs and in attics, and he suggests shop vacuums and light traps for removal.

FAQ

Fall Invader Exclusion and Sealing FAQs

Can I seal the gaps myself?

Many gaps can be sealed by a homeowner with the right caulk or foam. Larger gaps, gaps at height and any work near electrical or gas lines are better left to a professional.

How long does exclusion last?

It depends on the material and the exposure. Exterior caulk and foam weather with sun and cold, so the plan notes when each point should be checked. A yearly look is the usual minimum.

Will exclusion stop every insect?

No. It reduces the routes in, which reduces the number that get inside. Insects already inside must be removed, and a few may still find a gap nobody has found yet.

Does this come with a warranty?

This site offers no warranty on any work. The technician explains what was sealed and what the plan recommends for the next check. The work itself is between the homeowner and the company that performs it.

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