Mosquito Control in Markham
If you need mosquito control in Markham, AstraHive Pest Control offers licensed treatment backed by a 90-day warranty. Standing water on your own Markham property is what public larviciding programs do not reach.
Private yards in Markham
56% of homes in Markham are detached houses with private yards. Gutters, planters, tarps and bird baths on a private lot are breeding sites that public larviciding does not reach.
Source: Statistics Canada, 2021 Census, private households in Markham. Shares of occupied private dwellings.
How AstraHive Pest Control gets rid of mosquitoes in Markham
- Find the breeding zones: gutters, low-lying areas, ornamental ponds and bird baths first.
- Larvicide on standing water that cannot be drained.
- Residual treatment on dense foliage, shaded resting zones and foundation and perimeter edges.
- Monthly follow-up from May through September, if you want it.
Products are Health Canada approved and applied according to the product label, and our technicians are licensed by the Ontario Ministry of the Environment, Conservation and Parks (MECP). Our standard 90-day warranty applies to our treatments, and your technician confirms the terms for a seasonal mosquito program when you book.
Mosquitoes in your Markham home or building?
Our licensed technicians start with an inspection and a clear plan for your property.
Call 905-925-8427Areas near Markham that we also serve
| Page | Distance from Markham | Direction |
|---|---|---|
| Mosquito control Unionville | 2 km | northeast |
| Mosquito control Cathedraltown | 4 km | north |
| Mosquito control Commerce Valley | 4 km | southwest |
| Mosquito control Berczy Village | 6 km | northeast |
| Mosquito control Thornhill | 8 km | southwest |
| Mosquito control Wismer | 8 km | northeast |
Straight-line distances between area centres, rounded.
Wetlands, ditches and ponds around Markham
OpenStreetMap maps 120 creeks, ditches and drains within 3 km and 92 parks, gardens and golf courses within 3 km of the centre of Markham. Mosquitoes breed in standing water, so wetlands, ponds, ditches and drains close to homes matter most.
Counts of features mapped in OpenStreetMap within the stated distance of the centre of Markham. They show what contributors have mapped, which varies from place to place, not how many pests there are.
Mosquitoes near Markham: what the sightings show
GBIF, the open biodiversity database, holds 155 recorded sightings of Culex, Aedes and Culiseta mosquitoes within roughly 13 km of Markham, and the busiest month is May with 44.
| Species or group | Recorded sightings |
|---|---|
| Aedes mosquitoes (Aedes) | 155 |
Source: GBIF.org occurrence records for Canada. These are observations logged by naturalists and museums, so counts show where people looked as well as where a species lives.
Within about 4 km of the centre of Markham, OpenStreetMap maps 7 named creeks or rivers, including Rouge River, Apple Creek, Berczy Creek and Bruce Creek and 7 named ponds or water bodies, including Markham Civic Centre Ice Rink, Bunny Head Pond and Beaver Creek. Still water in ponds, stormwater ponds, ditches and catch basins is what health units monitor for mosquito breeding.
More on mosquitoes for Markham homeowners
| What the guides say | Guide |
|---|---|
| People over 50 face a higher risk of serious complications from West Nile virus. | Public Health Agency of Canada: West Nile virus risks |
| Direct contact with an infected person, such as touching or kissing, does not spread West Nile virus. | Public Health Agency of Canada: how West Nile virus spreads |
| Preventing mosquito bites is the most effective way to avoid West Nile virus. | Public Health Agency of Canada: preventing West Nile virus |
| Infants under six months should not use a DEET repellent; a mosquito net over the crib or stroller protects them outdoors. | Health Canada: personal insect repellents |
Frequently asked questions: Markham
How warm does Markham get in July?
The Toronto Buttonville A station's July mean is 21.2 degrees Celsius, with about 17.0 days a year above 30 degrees Celsius.
Why are there more mosquitoes after rain?
Rain fills containers, gutters and ditches, which become breeding sites within days. OpenStreetMap maps water near the centre of Markham, including Rouge River, Apple Creek and Berczy Creek, and damp ground near water suits mosquitoes.
Is West Nile virus a concern here?
Public health units monitor mosquito pools each season, and the usual advice is to cut breeding water and avoid bites at dusk.
Sources
- City of Markham: Property Standards By-law (2017) . section 14 pest prevention
- City of Markham: Property Standards . composters, rodents and insects
- Tribunals Ontario, Landlord and Tenant Board: Maintenance and Repairs . landlords must control pests such as cockroaches and mice; municipal standards
- York Region: YorkSafe Inspection Reports . published food premises inspection reports
- York Region: West Nile Virus . 34 traps, positive traps by municipality, private catch basin treatment
- Environment and Climate Change Canada: Canadian Climate Normals 1981-2010 . monthly temperature, precipitation, frost days and degree-days
- York Region: mosquitoes test positive for West Nile virus
- York Region: first human West Nile case of 2026
- Statistics Canada: structural type of dwelling by tenure, 2021 Census (table 98-10-0240-01) . dwelling types and renter households
- Statistics Canada: dwelling condition by period of construction, 2021 Census (table 98-10-0233-01) . age of homes and repair needs