Saint-jerome pest control map

Saint-Jérôme Exterminator: Carpenter Ants, Mice and Wasps

The Saint-Jerome cathedral on rue Labelle, in the area Local Extermination serves

A Saint-Jérôme exterminator costs $399 for carpenter ants and insects, $409 for mice, and $429 for bed bugs. That is a unit up to a 4 ½. A house costs more because there is a basement, a garage and an exterior to treat. The full list is published below, so you do not have to book a visit to find out.

We are Local Extermination. 14 years around Montreal, 9,000 clients, 6 licensed technicians. Mice, rats and insects: that is all we do, and it is why we are quick at it.

What a Saint-Jérôme Exterminator Costs

Most companies make you book a visit before they give you a number. We publish ours. A full indoor treatment in a 4 ½:

Extermination services in Saint-Jérôme Prices updated August 26, 2026
ServicePrice per visit
Mice Indoor $409
Rats Indoor $409
Bedbugs $429
Cockroaches $429
Spiders Indoor $399
Ants Indoor $399
Carpet Beetles $399
Fleas Indoor $399
Silverfish Indoor $399
Centipede Indoor $399
Pantry moth $429
Clothes moth $429

The prices people ask for most: a carpenter ant exterminator starts at $399 and is $399 for a bungalow. An exterminator for mice is $409 in a unit, $429 in a house. An exterminator for bed bugs starts at $429. An exterminator for cockroaches is $429 in a unit.

St-Jérôme is priced the same as the island. There is no travel charge.

Found a cheaper quote? Bring us a written quote from another licensed company and we will match it. Check what the number covers first: some quotes pay for the inspection only.

What the Price Includes

  • The inspection and the treatment, in one visit
  • A written report of where they are getting in
  • A warranty of 3, 8 or 12 months depending on the pest
  • Follow-up visits inside the warranty at no extra cost

Full pricing is on our exterminator prices page.

In Saint-Jérôme the Suburb Stops and the Bush Starts

That is what separates Saint-Jérôme from the cities further south. Bellefeuille, Lafontaine and the northern streets back straight onto Laurentian forest. Elsewhere a pest comes from the lot next door. Here it comes from woodland that does not end.

It changes the arithmetic for carpenter ants. In a closed suburb the parent colony is on your lot or your neighbour’s, and it can be found. On a forest edge it is in a stump outside anyone’s yard, on land nobody controls. We are not going to remove it, so we protect the building and hold the pressure back instead.

Old Saint-Jérôme works differently. Around the cathedral and rue Labelle it is older stock, plexes and shops, which means old openings and restaurant kitchens.

Carpenter Ants

Carpenter ants in damp wood in a Saint-Jérôme home

A carpenter ant exterminator spends most of the spring on this here, and it is what the region searches for most. The ants do not eat wood, they hollow it out to nest in, and they need it damp.

What you notice first: large black ants indoors, fine sawdust under a windowsill, a balcony or a deck joint, and in May the swarm, winged ants all at once at the same window.

Why Saint-Jérôme: the forest is a permanent reservoir. A parent colony lives for decades in a stump in the woodlot behind you and swarms every spring. What reaches the house is satellite nests, and they settle in the first wet wood they find: a deck beam that was never flashed, the bottom of a garage door frame, a pergola built last summer.

What makes treatment work: treating in the knowledge that the source is staying put. We clear the satellite nests, dry out what attracts them, and on a lot backing onto bush the three-visit outdoor plan holds the season rather than six weeks. You get in writing what needs repairing.

Indoor treatment from $399, $399 for a bungalow. Outdoor, $129 for one visit or $327 for three, which is the right call when the source is in the woods.

Mice

Mouse found indoors during a Saint-Jérôme pest inspection

Mice are the pest that fills our autumns. An exterminator for mice has one busy season here, and this is it. One mouse in September is a family by January.

What you notice first: droppings along a baseboard, about the size of a grain of rice, then scratching inside a wall or above a ceiling, loudest around dusk.

Why Saint-Jérôme: the fields and the woods come right up to the yards. A mouse fits through a gap the width of a pencil, and the hardened seal at the bottom of the garage door is our number one entry point, then the dryer vent and the service entry. A house at the end of a development gets the field mice before anyone else.

What makes treatment work: finding the entry points, not just placing bait. Bait alone drops the population for a few weeks, then the next ones use the same hole. You get the list in writing.

From $409 for a unit, $429 for a bungalow. Perimeter work, particularly worth it on a wooded lot, is $299.

Wasps

Wasp nest under the eaves of a Saint-Jérôme house

What you notice first: steady traffic in and out of one point: a soffit, the corner of a shed, a hole in the lawn. A nest is bigger than its entrance suggests.

Why Saint-Jérôme: calls peak in August. Big wooded lots produce ground nests as well as soffit nests, and the shed at the back of the yard comes up every year.

What makes treatment work: not doing it yourself. A disturbed nest defends itself, and hardware-store spray rarely reaches the inside.

One nest is $189. A full treatment covering every nest we find is $259, and each extra nest is $39.

Bed Bugs

Bed bugs in a mattress seam in a Saint-Jérôme home

The hardest pest on this page, and the one where do-it-yourself does the most damage.

What you notice first: bites in a line or a small cluster on skin that was uncovered overnight, then small dark spots near the mattress seam.

Why Saint-Jérôme: in a house it is almost always an object that brought them in. The apartment buildings downtown, around rue Labelle, get the other version, where they move between units, especially around 1 July.

What makes treatment work: preparation and a second visit. They survive months without feeding, so one pass rarely finishes it.

From $429, rising to $549 for a 10 ½.

Cockroaches, Rats and Spiders

Cockroach in a Saint-Jérôme kitchen

An exterminator for cockroaches treats a building, not a door. Roaches move through plumbing chases and shared walls, so in the downtown plexes and the restaurants on rue Labelle it is the building we plan for. In a detached house they arrive in cardboard and stay put. From $429 for a unit, $469 for a bungalow, $499 for a restaurant.

Spiders and silverfish follow humidity rather than food, so an exterminator for spiders is usually looking at a damp basement. Both start at $399 indoors.

Rats are less common here than in central Montreal. What we see comes from the banks of the Rivière du Nord and from construction: an excavation moves a colony into the surrounding buildings within days. They need a bigger opening than mice, so the entry points can be found and closed. From $409, perimeter control $299, and $230 for a single rat.

Get Your Price for Your Saint-Jérôme Address

Tell us what you are seeing and what kind of home you have. A photo helps: droppings, bites or a blurry insect on a wall is usually enough to identify the pest.

When Saint-Jérôme Pests Show Up, Month by Month

  • March to May. The big carpenter ant window: they swarm as the wood thaws. Wasps start their first nests.
  • June to August. Wasps peak in August, and the 1 July moving date carries bed bugs around with the furniture.
  • September to November. The first cold nights push mice and field mice indoors.
  • December to February. Quiet outside, busy inside: whatever came in during autumn is breeding in a heated wall.

The cheapest month to deal with mice is September. The most expensive is January.

Why Call Us Instead of Someone Else

  • The price before the visit. Not a range: the price on this page.
  • We do not sell products. We do the treatment.
  • Unmarked vehicles. No logo on the vans or on our technicians’ clothes.
  • Follow-up is included. If it comes back inside the warranty, so do we, at no charge.
  • Approved products. Registered for use in occupied homes, with no incident reported to Anti-Poison Canada in 14 years.

Where We Work on the North Shore

A Saint-Jérôme exterminator covers the whole city, from Old Saint-Jérôme out to Bellefeuille and Lafontaine. This is the northern edge of our territory in the Laurentians, and we cover the North Shore cities below it:

The North Shore page covers the region, and we work on the island too, including Montreal. If you are further north, call anyway and we will tell you honestly whether you are inside our range.

Questions from Saint-Jérôme Residents

We serve Saint-Jérôme and the North Shore up to the edge of the Laurentians. St-Jérôme is the northern limit of our territory: further up than that and we will tell you rather than send a technician on a two-hour drive. Wherever you are, check that the company has licensed technicians and a written warranty before anything else.

$399 indoors for a unit up to a 4 ½, and $399 for a bungalow. Outdoors, $129 for one visit or $327 for three. On a lot backing onto woodlot, take the three visits: the pressure returns all summer.

Because the parent colony is probably not on your property. On a forest edge it lives in a stump or a dead tree outside anyone’s yard, and it sends satellite nests toward the nearest damp wood every year. Treating indoors clears the satellites. Drying out the deck beam or door frame they keep choosing is what stops the repeat.

Licensed technicians, liability insurance, and a written warranty with the follow-up inside it rather than billed separately. Then three questions: is the price given before the visit or after the inspection? Does the quote cover the treatment or only the inspection? And what happens if it comes back?

As soon as the signs repeat: noises several nights running, droppings you keep finding, sawdust in the same spot. A May swarm of winged ants is a clear signal, because a colony only produces winged ants once it is established. Anything breeding indoors gets worse quickly.

No. We do not do wildlife removal or relocation, so no raccoons, skunks, squirrels, groundhogs, birds or bats. We treat mice, rats and insects. On lots that back onto bush this comes up often, and you need a licensed wildlife specialist rather than a technician who cannot help.

The prices shown are estimates for the most common cases and can change without notice. We do our best to keep them current. Your final price depends on what the technician finds on site: how far the infestation has spread, how easy the affected areas are to reach, the condition of the property, and how many visits the job needs. You always get the exact price before any work starts.

How Our Saint-Jérôme Extermination Service Works

Inspection

A crucial part of each pest control service in Saint-Jérôme is an inspection of the property. That way, the pest exterminator will be able to determine the type and severity of the infestation. Based on that, he will choose the most suitable treatment to resolve the pest problem.

Treatment

Depending on the type of the pest, it might include spraying or fogging of affected areas, targeted baiting, or sealing of small entry points. No matter the case, the Saint-Jérôme pest exterminator will choose the proper course of action and help you eliminate the intruders.

Follow Up

Some infestations require more than one visit, and with our guaranteed pest control service, additional visits can be organised upon your request. After a certain time, the specialist will return and re-examine the property. If there are still signs of infestation, he will proceed with further treatment.

Prevention

Our Saint-Jérôme pest specialist will share helpful advice and give you some tips on preventing further infestation. Following his recommendations will guarantee that your property won't be reinfested again and assure the best results from the pest control service.