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Fly & Mosquito Control

With flies and mosquitoes, insecticide is never the main answer: these are short-cycle insects whose population rebuilds within days if the breeding site remains. Any serious intervention therefore starts by finding the source — decomposing matter for flies, standing water for mosquitoes — because that, not the adults in flight, determines whether the problem returns next week. Our technicians spend most of the visit on that search.

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Finding the breeding site: fruit, drain, or house fly

Each species betrays its source. The fruit fly, tiny with red eyes, lays in ripe fruit, bottle dregs, poorly rinsed recycling bins, and sugary surfaces; its presence is a direct indicator of an accessible residue. The drain fly, small and fuzzy, develops in the biofilm lining traps and little-used floor drains — insecticide does not reach it; mechanical enzymatic cleaning is required. The house fly, larger, lays in decomposing matter: a poorly closed bin, litter, compost, a dead animal in a void. A sudden swarm in a room in winter almost always signals a rodent or bird carcass in a cavity, and that source is what must be located.

Mosquitoes: eliminate standing water before any treatment

A mosquito lays in a laughable amount of water: a bottle cap is enough, and the egg-to-adult cycle takes seven to ten days in summer. That is why the first part of our visit inventories water sources, including the ones nobody thinks of — plant pot saucers, pool covers, clogged gutters, wheelbarrows, tires, children's toys, folds in a patio cover, a blocked French drain, a rain barrel with no screen. Emptying those reservoirs once a week does more for mosquito pressure than a monthly treatment. For water that cannot be emptied, such as an ornamental pond, a biological larvicide targets the larvae without affecting other organisms.

Residual barrier on resting zones, not the whole property

An adult mosquito does not fly continuously: it spends most of the day at rest, in shade, on low foliage, under porches, against north-facing walls, and in hedges. That is where residual application works, and nowhere else. Treating the lawn or spraying into the air produces no measurable result and needlessly kills pollinators. We therefore treat identified resting zones and the immediate surroundings of outdoor living areas, with three to four weeks of residual effect in season. For a reception or event, an application two to three days ahead performs markedly better than one the day before, which has no time to settle on the foliage.

Exclusion: screens, weatherstripping, and air curtains

Preventing entry remains more effective than treating afterwards. In homes, the points to check are torn or ill-fitting screens, worn door sweeps, dryer vents without a flap, and basement windows. In commercial settings the issue differs: a service door left open during deliveries cancels any indoor treatment. We then recommend mechanical solutions — air curtain, self-closing doors, flexible strip curtains — and light traps with sticky boards, never electrified grids in a food space, since projected insect fragments are incompatible with preparation areas. These installations often belong to another trade, but we document them because they condition the result.

How an intervention unfolds

Free on-site inspection

A certified technician comes on site, identifies the exact species, measures the extent of the infestation, and locates entry points. No obligation, and no price quoted before seeing the site.

Written quote and treatment plan

You receive a document setting out the chosen method, the products used, the number of visits planned, the schedule, and the scope of the guarantee. The price is firm, not indicative.

Treatment and preparation instructions

Preparation instructions are given to you in advance: this is the most underestimated part and the one that decides the outcome. Treatment is then applied with Health Canada-approved products.

Follow-up visit and guarantee

One or two check visits verify the outcome, scheduled against the species' reproductive cycle rather than on a fixed date. If activity resumes within the covered period, we return at no charge.

Fly & Mosquito Control by area

We work across Greater Montreal. Choose your area to see local specifics and lead times.

Identification Guide — 21 pages, free

Five actual-size plates to print and set beside what you found: droppings (mouse, rat, squirrel, bat, cockroaches), eleven insects, and the full bed bug life cycle from egg to engorged adult. Plus an identification key, the twelve inspection points of a building, and the Greater Montreal seasonal calendar.

Download the PDF No sign-up required · PDF, 21 pages

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Frequently Asked Questions

Flies suddenly appear in winter — why?

Almost always because of a dead animal in a cavity — a rodent or bird in a wall, attic, or duct. The swarm results from eggs laid on the carcass. Treatment means locating and removing the source, not spraying the room.

The small flies near the sink keep coming back

Those are drain flies, developing in the biofilm lining the inside of the trap. No insecticide reaches it: mechanical cleaning of the drain wall followed by an enzymatic treatment is required. Bleach does nothing — it runs past without lifting the biofilm.

How long does a mosquito treatment last?

Three to four weeks in peak season, less after heavy rain that washes the product off foliage. For a full season, a program of three to four applications from April to September gives a stable result, provided water sources are managed in parallel.

Does the treatment affect bees?

We apply to shaded resting zones, avoiding flowering plants, and preferably early morning or evening, outside foraging hours. That is also why we never spray into the air or onto flower beds.

Need fly & Mosquito Control?

Free inspection, response in under 2 hours.

Request a Quote 514 612-0083