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Fernwell Pest Management · PDX

entry 01 · Heaviest March–September; indoor trails spike after the first warm rain.

Ants

Tapinoma sessile · Camponotus spp.

Odorous house ants trail to moisture and sweets; carpenter ants tunnel into damp wood. The fix is baiting the colony, not spraying the trail.

One-time treatment from $189

Baseline: detached house, 1,500–2,500 sq ft, low severity. Includes the follow-up noted below. Exact price in writing on site, before work starts.

Price my situation

field signs

What you're probably seeing

  • Trails in more than one room
  • Activity for more than two weeks
  • Fine sawdust (frass) near sills or joists
  • Winged ants indoors

The instant quote asks about these same signs — the more of them you're seeing, the higher in the range your price lands, and we'd rather show you that math than surprise you with it.

treatment approach

How we treat it

  1. 01

    Identify the species

    Odorous house ants and carpenter ants need opposite treatments. We confirm the species before anything is opened or applied — a wrong guess with repellent spray splits colonies and makes it worse.

  2. 02

    Find the trail, not just the ants

    We trace trails to entry points and, where possible, to the nest — moisture sources, wall voids, landscaping timbers, that fir stump by the fence.

  3. 03

    Bait and non-repellent treatment

    Slow-acting baits the workers carry back to the colony, plus a targeted non-repellent band at entry points. Interior work is crack-and-crevice, not baseboard fogging.

  4. 04

    Close the moisture story

    Ants follow water. You get a written list of the gutters, drips, and grade-level wood contact we found, because fixing those matters more than any product.

Technician applying a low-pressure band of treatment along a home's foundation line where the siding meets the ground
fig. 01 — exterior foundation band, applied low and dry within the hour

Covered year-round?

Yes — ants are covered on the Foundation plan ($69/visit, quarterly), including free re-treats between visits.

before we arrive

Your prep checklist

Ten minutes of prep does more for results than an extra gallon of anything we could spray. Here's the whole list — nothing hidden until the confirmation email.

  • Don't spray store-bought repellents for 48 hours before the visit — it scatters the trail we need to read
  • Wipe up visible trails with soapy water the morning of the visit is fine
  • Clear under the kitchen sink and pull small items away from the worst wall
  • Note where and when you see the most activity (photos help)
  • Keep pets off treated exterior bands until dry — usually 1–2 hours

the honesty block

What to realistically expect

  • Baiting looks slow on purpose: activity often increases for 3–7 days while workers carry bait to the colony, then collapses
  • Most odorous-house-ant jobs resolve in one visit plus the included 30-day recheck; carpenter ants sometimes need a second visit
  • If we find carpenter-ant frass, we'll recommend a closer structural look — and tell you if it's a carpenter or a contractor problem

next step

Get a number, not a pitch

Six questions, real arithmetic, and a range your technician confirms in writing before any work starts.

or call (503) 555-0164 — Mon–Fri 7:30 am – 5:30 pm · Sat 8 am – 1 pm

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