Barrier Spray Treatment
Professional mosquito barrier spray eliminates mosquitoes on contact and keeps them away for up to 21 days.
Mosquito Time's barrier spray treatment is the most effective way to reclaim your Ann Arbor yard from mosquitoes. Our licensed technicians apply a fine mist of EPA-registered insecticide to the perimeter of your property, targeting the areas where mosquitoes rest and breed — shaded foliage, under decks, along fence lines, and around standing water sources.
The barrier spray works in two ways. First, it kills mosquitoes on contact during application. Second, it leaves a residual layer on treated surfaces that continues to eliminate mosquitoes for up to 21 days. This dual-action approach means you get immediate relief and lasting protection.
Our technicians arrive in a clearly marked Mosquito Time vehicle and complete most residential treatments in 15 to 30 minutes. We treat the entire perimeter of your yard, focusing on areas where mosquitoes harbor during the day — the undersides of leaves, dense shrubs, ground cover, and shaded areas near your home's foundation.
We use commercial-grade products that are effective against both Aedes and Culex mosquito species common in Washtenaw County. These are the same species responsible for transmitting West Nile virus and Eastern Equine Encephalitis, both of which have been detected in Michigan.
Before each treatment, our technician inspects your property for standing water and potential breeding sites. We'll tip, drain, or treat any water sources we find and provide recommendations for reducing mosquito habitat on your property.
Barrier spray treatments are safe for your family and pets once the application has dried, typically within 30 minutes. We recommend staying indoors during treatment and for 30 minutes afterward. Our technicians always notify you before arriving so you can plan accordingly.
For the best results, we recommend our seasonal plan with treatments every 21 days from April through October. However, one-time treatments are available starting at $99 for properties under 1/4 acre. This is a popular option for homeowners preparing for outdoor events or wanting to try our service before committing to a seasonal plan.
Every treatment includes a satisfaction guarantee. If you're not seeing results between visits, contact us and we'll retreat your property at no additional cost.
Transparent Pricing
Simple pricing based on property size. No hidden fees, no contracts required. 7 visits, April through October.
Under 1/4 Acre
Small yard — under 1/4 acre
Seasonal · 7 visits
One-time: $99
1/4 – 1/2 Acre
Medium yard — 1/4 to 1/2 acre
Seasonal · 7 visits
One-time: $129
1/2 – 1 Acre
Large yard — 1/2 to 1 acre
Seasonal · 7 visits
One-time: $179
1+ Acre
Extra-large property — custom quote required
Frequently Asked Questions
Each barrier spray treatment provides protection for up to 21 days. For continuous protection throughout mosquito season (April–October), we recommend our seasonal plan with treatments every 3 weeks.
Yes. Once the spray has dried (about 30 minutes after application), the treated area is safe for children and pets. We recommend staying indoors during treatment and for 30 minutes afterward.
Light rain after the spray has dried will not significantly reduce effectiveness. If heavy rain occurs within 24 hours of treatment, contact us and we will retreat your property at no additional charge.
One-time barrier spray treatments start at $99 for properties under 1/4 acre. Seasonal plan pricing starts at $79 per visit with 7 treatments from April through October.