Mosquito and Tick Control in York Region

We treat yards and properties for mosquitoes and ticks across York Region, carried out by our service partner Insectica Pest Control. The work is a barrier and perimeter treatment on the shaded, leafy places where both pests wait, plus source reduction for the standing water where mosquitoes breed. One treatment knocks a yard's population down for a few weeks, not forever, so it is run best as a seasonal program through the warm months. If mosquitoes are chasing you off your own patio in Markham or Vaughan, or you have a treed estate lot in King or Aurora and worry about ticks on the kids and the dog, this is the service that makes the yard usable again.

(888) 885-3070

What we do

Mosquito and tick control is an outdoor, targeted job, not a fog over the whole lawn. Insectica's licensed technicians treat the specific zones where the two pests spend their time.

• Perimeter and barrier treatment. Mosquitoes and ticks do not sit out in the open sun. They rest on the underside of leaves, in shrubs, along fence lines, under decks, and in the shaded, humid edges of a property. We apply a PMRA-registered product to those resting surfaces so the pests pick it up where they wait.
• Source reduction and larvicide for mosquitoes. Mosquitoes breed in standing water, and spraying the adults means little if the nursery is left running. We find and empty or treat the water: clogged gutters, planter saucers, tarps, old containers, birdbaths, and the low spots that hold rain in the big suburban yards across the region. Where water cannot be drained, a larvicide applied to label stops the larvae before they hatch.
• Tick-zone treatment. Ticks sit low, in tall grass, leaf litter, and the wood-edge and fence-line band where your lawn meets the moraine, the woods, or a neighbour's overgrowth. We treat those bands rather than the open turf, because that is where ticks are and where they climb onto a passing leg.

Every product is registered by Health Canada's Pest Management Regulatory Agency and applied to the label by a licensed technician. A single treatment protects a yard for a few weeks, which is why the sensible way to buy this is as a seasonal program of repeat visits through the warm season, not a one-off.

Mosquitoes in York Region

Mosquito season across York Region runs roughly May to September, tracking the warm, wet weather. They breed fast in any standing water, so the source is almost always in your own yard or the one next door, and the large suburban lots of Markham, Vaughan, and Richmond Hill give them plenty of room: a clogged gutter, a birdbath nobody tips out, a tarp, a pool cover, or a low spot in the lawn that holds a puddle for a week after rain. Warm nights bring them onto the deck and patio right when you want to be out there, and a shaded, humid backyard with dense planting is the microclimate they like.

There is also a public-health side, and we will be straight about it without overselling. York Region Public Health monitors mosquitoes for West Nile virus each summer, sets traps, and posts its findings, which is reason enough to keep breeding sites down around the home. We are not doctors and we do not diagnose. For health questions, or if you feel unwell after bites, that is a conversation for your doctor and for York Region Public Health. What we do is cut how many mosquitoes are breeding on your property.

Ticks in York Region

Ticks are the bigger worry for many York Region yards, and it is a fair one. Blacklegged ticks, also called deer ticks, are well established here, not just passing through. They turn up along the Oak Ridges Moraine that runs across the middle of the region, in the Rouge headwaters, through greenspace and ravine edges, and along the Lake Simcoe shoreline in Georgina and East Gwillimbury. The treed estate lots of King, Aurora, and Kleinburg back straight onto the kind of tall grass, leaf litter, and wooded edge that ticks favour. Pets are the other way ticks arrive, carried in from a walk in long grass.

Blacklegged ticks are the ones that can carry the bacteria behind Lyme disease, which is why York Region Public Health and Public Health Ontario track them and map where they are established. We want to be careful here: we treat your yard to lower the number of ticks in it, and that is all we are claiming. We do not diagnose, and a tick bite followed by a rash, fever, or feeling unwell is a matter for a doctor, quickly. Yard treatment reduces tick pressure where you live and play, but it does not replace personal protection, and we would rather you do both. Use an approved repellent, cover up in brushy areas, and check yourself, the kids, and the dog for ticks after time outdoors.

The honest bit

Here is the part some companies skip. A mosquito or tick treatment reduces the pressure in your yard for a few weeks per application. It does not eliminate them and it does not last the whole season from one visit. Mosquitoes fly in from beyond your fence and ticks ride in on animals, so the population rebuilds, which is why the treatment is repeated through the warm months. And none of it replaces the basics: emptying standing water, keeping grass and brushy edges cut back, using repellent, and doing tick checks. If someone tells you a single spray will end mosquitoes or ticks for the summer, they are selling you something.

How it works, and booking

1. Free inspection. A technician walks the property, finds the breeding water and the resting and tick zones, and sizes the job. No charge for the look.
2. Quote before any work. You get the price up front, in writing, before anything is treated. The cost page explains how pest jobs are priced.
3. Treatment, often same day. Where the schedule allows, the first treatment can happen on the same visit.
4. Seasonal program, if you want it. Because one treatment lasts weeks and not months, most yards do best on a program of repeat visits through the warm season, and booked that way the per-visit cost comes in lower than one-off calls.

Wasps are the other summer pest that turns a backyard against you; if that is the real problem, see wasp nest removal. For patios, restaurant terraces, and other properties where mosquitoes drive customers indoors, our commercial pest control covers the same treatment at that scale.

By town: mosquitoes and ticks in Markham, Richmond Hill, Vaughan, Newmarket and Aurora

Every York municipality is now an estimated Lyme disease risk area, and mosquitoes breed in any standing water, so the risk follows the green edges and the water in each town.

• Markham: yards backing onto the Rouge River valley and Rouge National Urban Park, where ticks wait in the leaf litter and long grass at the lot line.
• Richmond Hill: lots around Lake Wilcox and the Oak Ridges Moraine trails, with both standing water for mosquitoes and the woodland edge ticks need.
• Vaughan: the Humber valley and conservation lands around Woodbridge and Kleinburg, and the Moraine edge to the north; see our York Region tick report for where the health unit first confirmed blacklegged ticks.
• Newmarket: yards near Fairy Lake and the Nokiidaa Trail along the Holland River, where damp, shaded edges suit both pests.
• Aurora: lots by Sheppard's Bush and the Nokiidaa Trail, and the Moraine-backing estate lots to the west.

Common questions

Reviewed October 2026.

(888) 885-3070