Exterminator in Saint-Jean-sur-Richelieu
What the most common treatments cost in Saint-Jean-sur-Richelieu
Ranges published by companies in the region, not prices set by this site. The only figure that binds is a written quote after an inspection.
- mice — Mice, residential$250–$695 per job
- carpenter ants — Accessible colony$300–$800 per job
- wasps and hornets — Accessible nest$150–$400 per job
See every published range, including Saint-Jean-sur-Richelieu
Saint-Jean-sur-Richelieu has 97,873 residents as of the 2021 census. Today’s city was formed in 2001 by merging Saint-Jean-sur-Richelieu, Saint-Luc, Iberville, L’Acadie and Saint-Athanase. The rivière Richelieu runs through it from south to north, the canal de Chambly runs along île Sainte-Thérèse, and autoroute 35 is the main access from the rest of the South Shore. It is also home to the Collège militaire royal de Saint-Jean and the International de montgolfières balloon festival. Its geography explains its pests: an old core by the water, and a wide residential ring surrounded by farmland (terres agricoles).
An old core by the water, a farmland ring
Along rue Richelieu, with its long port and commercial history, the buildings are older: brick, wood, and foundations that have been through many decades of freeze and thaw. Near the river, moisture is more present.
Around it, the Saint-Luc, Iberville, L’Acadie and Saint-Athanase sectors hold newer neighbourhoods, several of which sit right against cultivated fields. Boulevard du Séminaire, the main commercial artery, links the two.
The most common pests in Saint-Jean-sur-Richelieu
Asian lady beetles. The city’s most visible fall problem. Houses next to fields, especially with a south- or west-facing wall, see Asian lady beetles gather by the hundreds before slipping inside.
Mice. Harvest clears the fields just as the nights get cold. Mice then turn to the nearest foundations, in the farmland sectors and in the old downtown buildings alike.
Carpenter ants. Moisture near the river and the old framing downtown favour carpenter ants.
Wasps. Newer homes with vented soffits, sheds, decks: wasp nests are common from June to September.
Rats. Commercial areas and the riverbanks can attract Norway rats, especially where garbage is accessible.
The local calendar
- April and May: lady beetles trying to get out of the walls; winged carpenter ants.
- June to August: wasps, and mosquitoes near the river and the canal.
- September and October: lady beetles gathering on walls, mice starting to arrive.
- November to March: mice active in basements; lady beetles woken by thaws.
Requesting service in Saint-Jean-sur-Richelieu
Saint-Jean-sur-Richelieu alone makes up the Haut-Richelieu zone. The quote request for Saint-Jean-sur-Richelieu opens with the town already selected; mention your sector. No response time is guaranteed.
For lady beetles, the right time is late summer, not October: a wall treatment done too late rarely helps. Insist on a written quote that covers sealing, and ask to see the technician’s CD5 certificate. Price ranges are on the pest control prices page.
The most common pests in this sector
Frequently asked questions
Why so many Asian lady beetles in Saint-Luc and L'Acadie?
Those sectors sit right next to large cultivated fields. In the fall, Asian lady beetles leave the fields and look for the nearest light-coloured, sunny walls to spend the winter. Houses on the edge of that farmland are on the front line.
Do mice arrive at the same time as the lady beetles?
Often, yes. Harvest removes the mice's cover just as the nights turn cold. Sealing done before the end of September works against both at once, which makes it the best prevention spending in those sectors.
Do homes near the Richelieu River have particular problems?
Moisture near the water favours carpenter ants in exterior wood and joists, and mosquitoes in summer. The older buildings downtown, near rue Richelieu, add foundations and framing where rodents and ants find hiding places.
Are Iberville and Saint-Jean the same city for a quote?
Yes. Since the 2001 merger, Iberville, Saint-Luc, L'Acadie and Saint-Athanase are part of Saint-Jean-sur-Richelieu. Still mention your sector in the description: the type of housing and how close the fields are vary a lot from one sector to another.
Neighbouring sectors
Updated