WebLock Pest Control
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How much does mosquito barrier spray cost?

Monthly mosquito barrier sprays in the Bucks County / NE Philly area cost $75–$95 per treatment for typical residential yards (under 1/2 acre). Larger properties run $95–$150. The barrier lasts 21–30 days. Pre-event treatments for parties or weddings are $125–$200 single-application. Most homeowners book April–October.

Mosquito & tick questions·Updated Jun 6, 2026·Written by a licensed PA technician

What you're actually paying for

A barrier mosquito treatment isn't a yard fog — it's targeted residual spray on the surfaces mosquitoes rest on during the day: shaded shrubs, fence lines, the underside of deck rails, lower tree branches, foundation perimeter. Adult mosquitoes contact the residue and die within minutes.

We use Bifen-It or Talstar P (bifenthrin), one of the longest-residual mosquito products available. It bonds to leaves and holds up through normal rain for 21–30 days.

What's included per treatment

  • Survey of breeding sources (we'll flag standing water on your property — even a bottle cap of water is a mosquito nursery)
  • Targeted spray on resting areas (NOT a fog of the whole yard)
  • Treatment of fence lines, mulch beds, foundation perimeter
  • No spray on flowering plants (pollinator protection)
  • Re-treatment if heavy rain within 7 days

Pre-event ("party spray") option

Booking a backyard wedding, BBQ, or graduation party? A pre-event treatment 24–48 hours before the event dramatically cuts mosquito pressure. $125–$200 for a one-shot application, no monthly commitment.

What we can't do

  • We can't eliminate mosquitoes flying in from neighboring untreated yards. The treatment knocks down mosquitoes that contact your treated surfaces, but new ones fly in from anywhere within ~150 yards.
  • We can't stop mosquitoes if there's standing water you won't fix. A clogged gutter generates 100x more mosquitoes than the rest of the yard combined.

Book mosquito service →

Want a free inspection in your town?

We serve all of Bucks County and Northeast Philadelphia. Most jobs scheduled same week.

Call 445-900-4999