Pest Control and Exterminator in St. Catharines, Ontario
Avid Pest provides pest control in St. Catharines for mice, ants, wasps, bed bugs, cockroaches, spiders and fleas in homes and businesses. Free phone estimates. Office hours Monday to Friday, 8:30 a.m. to 5 p.m. Call (905) 902-4222.
Licensed & insured
Mon–Fri 8:30–5
Health Canada products
Bed bugs: Aprehend only
Why Choose Avid Pest
Licensed & insured pest control for St. Catharines homes and businesses — free phone estimates, weekday service.
Qualified local techs
Trained and experienced exterminators who know this city’s housing stock.
Free phone estimate
Describe what you’re seeing — we outline options before anyone visits.
Unmarked vehicles
Discreet visits so homes and businesses stay low-key while we work.
Safety first
Health Canada–registered products used with care around kids and pets.
St. Catharines neighbourhoods we serve
We cover St. Catharines and nearby streets, including:
Common pests in St. Catharines homes
St. Catharines is Niagara’s largest city — student rentals near Brock, lakeshore homes in Port Dalhousie, older east-end streets and newer south subdivisions. Multi-unit housing drives bed bugs and cockroaches; residential areas see mice, ants and wasps.
Mice
Mice enter older Facer, Queenston and Western Hill foundations and newer south-end garages each fall. See rodent control.
Ants and carpenter ants
Pavement ants in spring; carpenter ants in treed Glenridge and Port Dalhousie streets with damp wood. See ant extermination.
Wasps and hornets
Eave and ground nests peak late summer across residential neighbourhoods. See wasp and hornet control.
Bed bugs
Student rentals, apartments and travel generate frequent bed bug calls. Aprehend only — no heat treatment. See bed bug extermination.
Cockroaches
German cockroaches are common in multi-unit kitchens and food service downtown and near campus. See cockroach extermination.
Spiders
Lakeshore and older basements collect spiders by August. See spider extermination.
When to call an exterminator instead of trying DIY
Store-bought traps and sprays can handle a single mouse or a small ant trail. Call a professional when:
You see mouse droppings in more than one room, or hear scratching in walls or ceilings at night.
Ants keep coming back after baits, or you see large black ants indoors in late winter or early spring (possible carpenter ants).
A wasp or hornet nest is inside a wall, under siding or high on the house.
You wake up with bites in rows or clusters, or find small blood spots on sheets.
You see cockroaches during the day, which usually means a large population.
What to expect from a St. Catharines pest control visit
Free phone estimate
Call (905) 902-4222 and describe what you are seeing. We will tell you what it is likely to be, what treatment involves and the typical price range.
Inspection
Your technician confirms the pest, finds where it is living and checks how it got in. An inspection is required for an exact quote on larger jobs such as bed bugs or multi-unit work.
Treatment
We treat the source: bait stations along rodent runways, gel bait in cockroach harbourages, Aprehend bands for bed bugs, or a direct nest treatment for wasps and hornets.
Prevention
We seal the mouse entry points we find at ground level and show you what to change, such as firewood against the house, a leaking downspout or open garbage.
Pest control for St. Catharines businesses and landlords
Restaurants, shops, offices, campuses and rental buildings can schedule weekday treatments around staff, tenants and customers. See the full list of pests we exterminate and our pest treatments overview.
Food service & retail
Kitchen and storage programs with discreet unmarked vehicles.
Offices & warehouses
Scheduled weekday visits that fit around your hours.
Landlords & multi-unit
Bed bugs and cockroaches need an inspection before we quote.
Residential properties
Same licensed techs for homes, duplexes and small rentals.
Pest control prices in St. Catharines
Typical ranges before HST (your technician confirms the price before work starts):
Mouse control
Rat control
- Wasp or hornet nesttypical range — confirmed on the free phone estimate
- Antstypical range — confirmed on the free phone estimate
- Spiderstypical range for exterior work — confirmed on the free phone estimate
- Fleastypical range — confirmed on the free phone estimate
- Cockroachestypical range for a two-treatment plan — confirmed on the free phone estimate
- Bed bugstypical range by number of bedrooms — confirmed on the free phone estimate
How to keep pests out of a St. Catharines home
Seal gaps around pipes, cables and dryer vents, and fix worn door sweeps before October.
Keep firewood, mulch and leaf piles away from the foundation.
Store garbage, recycling and green bin waste in sealed containers.
Fix leaks and damp wood, which draw carpenter ants.
Check second-hand furniture and luggage for bed bugs before they come inside.
Knock down small wasp nests in spring before they grow, if it is safe to do so.
Pest control in St. Catharines: FAQ
Do you serve all of St. Catharines?
Yes. We serve St. Catharines neighbourhoods listed above and the surrounding streets. We also cover nearby towns linked on this page. Call (905) 902-4222 if you want to check your address.
How quickly can you come out in St. Catharines?
It depends on the season and the schedule that week. Wasp season and the first cold snap in fall are our busiest times. Call us Monday to Friday, 8:30 a.m. to 5 p.m. and we will give you the earliest appointment we have and tell you what to do in the meantime.
How much does pest control cost in St. Catharines?
Mice packages are $279 for a one-time visit, or $549 with a one-year warranty. Rats are $279 for one visit, or $429 for two visits (+HST). For wasps, ants, spiders, fleas, cockroaches and bed bugs, ask for the typical range — confirmed on the free phone estimate. Your technician confirms the price before any work starts.
How do you treat bed bugs in St. Catharines?
We treat bed bugs with Aprehend only. We do not offer heat treatment. Aprehend is a fungal product applied as bands where bed bugs travel; they pick it up and spread it in the harbourage. Prep instructions come with your booking.
Do you treat student rentals near Brock University?
Yes. We treat student houses, apartments and whole buildings near Brock and across St. Catharines. Bed bugs and cockroaches spread between units, so neighbouring units should be inspected when possible. Call (905) 902-4222 to book.
Are your treatments safe for kids and pets?
Yes, when the instructions are followed. We use Health Canada-registered products and apply them where pests live — in cracks, voids, locked bait stations and around the outside of the house. Your technician tells you how to prepare, which areas to avoid and for how long, and what to do with pets and fish tanks.
What are your hours?
The office is open Monday to Friday, 8:30 a.m. to 5 p.m. Leave a message after hours and we will call you back the next business day. We do not offer 24/7 or emergency service.
Book pest control in St. Catharines
Call (905) 902-4222 and tell us what you are seeing. Estimates over the phone are free, and an inspection is required for an exact quote on larger jobs. The office is open Monday to Friday, 8:30 a.m. to 5 p.m.