Ant Control in Calgary: The Ultimate 2026 Guide
Ants are the most common household pest in Calgary, and they're also the most misunderstood. Homeowners waste hundreds of dollars on store-bought sprays that kill a few dozen ants while the colony of 100,000 keeps growing inside the walls. This guide covers every ant species found in Calgary homes, how to identify them, why they invade, professional treatment methods that actually work, and how to prevent ants from coming back.
If you need immediate help, call (825) 760-5364 or request a quote — we respond within 15 minutes. For our main ant control service page, visit Ant Control Calgary.
Every Ant Species Found in Calgary Homes
Calgary is home to several ant species that invade homes. Each requires a different treatment approach. Misidentifying your ants is the #1 reason DIY treatments fail.
1. Pavement Ants (Tetramorium caespitum)
The most common ant in Calgary homes.
- Size: 2.5-4 mm (1/10 to 1/6 inch)
- Color: Dark brown to black
- Key feature: Two small spines on the back of the thorax; parallel lines on head and thorax
- Nesting: Outdoors under sidewalks, driveways, patios, and foundation stones. Indoors in walls, under floors, and in insulation.
- Diet: Omnivorous — sweets, grease, proteins, other insects
- Behavior: Forage in trails along edges of walls and floors. Most active at night.
- Season: Active March through October indoors; peak invasion May-July
Pavement ants are the ants you see trailing across your kitchen floor in a neat line. They're attracted to sugary spills, pet food, and grease. While they don't cause structural damage, they contaminate food and are extremely difficult to eliminate without treating the colony.
2. Carpenter Ants (Camponotus pennsylvanicus)
The most destructive ant in Calgary.
- Size: 6-13 mm (1/4 to 1/2 inch) — the largest ant you'll see in Calgary
- Color: Black or black with red-brown thorax
- Key feature: Evenly rounded thorax (no spines); smooth, hairless appearance
- Nesting: Excavate galleries in moist or decaying wood. Outdoors in trees, stumps, logs. Indoors in wall voids, attics, window frames, door frames, and any wood with moisture damage.
- Diet: Primarily honeydew from aphids outdoors; indoors they forage for sweets, proteins, and grease.
- Behavior: Forage primarily at night, often traveling 100+ feet from the nest. Satellite colonies inside homes can contain thousands of workers.
- Season: Active April through October; swarmers (winged reproductives) emerge in late spring.
Carpenter ants don't eat wood — they excavate it to build nests. Over time, they can cause structural damage comparable to termites. If you see large black ants indoors, especially in spring or on warm winter days, you likely have a carpenter ant colony in your home. See our detailed Carpenter Ant Control Calgary guide.
3. Pharaoh Ants (Monomorium pharaonis)
The hardest ant to eliminate in Calgary.
- Size: 1.5-2 mm (1/16 inch) — one of the smallest ants
- Color: Yellow-amber to light brown, with darker abdomen
- Key feature: Almost translucent; very small size
- Nesting: Indoors only in Calgary's climate. Colonies form in wall voids, behind baseboards, inside electrical outlets, and in any warm, humid area. Multiple queens per colony.
- Diet: Sweets, proteins, oils; will feed on almost anything organic
- Behavior: Trail along wires and pipes inside walls. Colonies "bud" (split into new colonies) when disturbed.
- Season: Active year-round indoors
Critical warning: Pharaoh ants respond to spray treatments by "budding" — splitting the colony into multiple new colonies, making the infestation dramatically worse. Pharaoh ants can ONLY be eliminated with professional baiting programs. Never spray for pharaoh ants.
4. Odorous House Ants (Tapinoma sessile)
The coconut-smelling ant.
- Size: 2.4-3.3 mm (1/12 inch)
- Color: Brown to black
- Key feature: When crushed, emits a strong rotten coconut or turpentine odor
- Nesting: Outdoors under rocks, logs, and mulch. Indoors in wall voids, near hot water pipes, and under carpets.
- Diet: Strongly prefer sweets, especially honeydew; also eat grease and proteins
- Behavior: Trail heavily along edges and wires. Colonies can have multiple queens and relocate frequently.
- Season: Most active June through August; can be active indoors year-round
Odorous house ants are increasingly common in Calgary and are often mistaken for pavement ants. The smell test is the easiest way to identify them.
5. Field Ants (Formica species)
The outdoor ant that occasionally invades.
- Size: 4-8 mm (3/16 to 5/16 inch) Color: Red, brown, black, or bicolor
- Key feature: Often build large mounds in lawns and gardens
- Nesting: Outdoors in soil, under rocks, and in rotting wood
- Diet: Honeydew, insects, sweets
- Behavior: Rarely nest indoors but may forage inside for food
- Season: Active May through September
Field ants are primarily an outdoor problem but can become a nuisance when their mounds damage lawns or when they forage into homes.
6. Thatching Ants (Formica rufa group)
The mound-builders of Calgary's green spaces.
- Size: 4-8 mm
- Color: Red and black bicolor
- Key feature: Build large, conspicuous mounds of plant material (up to 1 meter tall) in parks and yards
- Nesting: Large colonies in outdoor mounds
- Behavior: Aggressive defenders; can bite and spray formic acid
- Season: Active May through September
Thatching ants rarely enter homes but their mounds can be a major problem in yards. They also provide ecological benefits by controlling other insect populations.
Ant Identification Chart: Quick Reference
| Species | Size | Color | Key Feature | Nests Indoors? | Destructive? | |---|---|---|---|---|---| | Pavement Ant | 2.5-4 mm | Dark brown/black | Spines on thorax | Yes (walls/floors) | No | | Carpenter Ant | 6-13 mm | Black/black-red | Large size, smooth thorax | Yes (wood) | Yes (structural) | | Pharaoh Ant | 1.5-2 mm | Yellow-amber | Tiny, translucent | Yes (wall voids) | No (but spreads disease) | | Odorous House Ant | 2.4-3.3 mm | Brown/black | Coconut smell when crushed | Yes (walls/pipes) | No | | Field Ant | 4-8 mm | Red/brown/black | Large outdoor mounds | Rarely | No | | Thatching Ant | 4-8 mm | Red/black | Large thatched mounds | No | No |
Not sure which ant you have? Call (825) 760-5364 for a professional identification.
Why Ants Invade Calgary Homes
Ants enter Calgary homes for three reasons: food, water, and shelter.
Food
Ants are foragers. A single scout ant can lead an entire colony to a food source within hours. The most common ant attractants in Calgary homes are:
- Sugary spills and food residue on counters
- Pet food left out between meals
- Garbage cans without tight-fitting lids
- Unsealed pantry food (cereal, sugar, flour)
- Grease buildup on stoves and behind appliances
- Honeydew-producing insects on houseplants
Water
Calgary's dry climate makes water a powerful ant attractant. Ants need moisture to survive and will nest near:
- Leaky pipes and plumbing fixtures
- Condensation around windows
- Standing water in sinks or basements
- Damp basements and crawl spaces
- Potted plants that are overwatered
Shelter
Ants seek shelter from Calgary's extreme temperature swings. In spring, they emerge from winter dormancy and seek warmth. In summer, they escape heat and drought. In fall, they seek overwintering sites. Your home provides stable temperatures year-round.
Seasonal Ant Activity in Calgary
Calgary's ant season follows a predictable pattern. Understanding it helps you time prevention and treatment:
Spring (March-May): The Emergence
As snow melts and ground warms, ant colonies become active. Pavement ants emerge first, often appearing in kitchens and bathrooms as they forage for food after winter. Carpenter ant swarmers (winged reproductives) emerge on warm spring days, often alarming homeowners who mistake them for termites.
Key action: Spring is the ideal time for preventive perimeter treatment before colonies establish foraging trails into your home.
Summer (June-August): Peak Activity
Summer is peak ant season in Calgary. All species are active, colonies are at maximum size, and foraging trails are well-established. This is when most homeowners notice ant problems. Odorous house ants and pavement ants are particularly active during hot, dry weather as they seek water indoors.
Key action: If you see ant trails, don't wait — the colony is already large. Call for professional treatment.
Fall (September-November): The Retreat
As temperatures drop, ants begin seeking overwintering sites. Some species, like pavement ants, move colonies deeper into soil or into homes through foundation cracks. Carpenter ants may move satellite colonies into wall voids for winter shelter.
Key action: Seal entry points and apply fall perimeter treatment to prevent overwintering colonies.
Winter (December-February): Dormancy (Mostly)
Most ant activity stops outdoors, but indoor colonies remain active, especially near heat sources. Seeing ants indoors in winter almost always means there's a colony inside your home — most likely pavement ants in wall voids or carpenter ants in structural wood.
Key action: Winter ant sightings warrant immediate professional inspection. See our Calgary Winter Pest Prevention Guide for comprehensive winter pest protection.
Signs of an Ant Infestation
Here are the signs that ants have established a colony in or around your Calgary home:
-
Live ants in trails: The most obvious sign. A trail of ants marching along a baseboard, countertop, or floor edge means a foraging trail has been established from the colony to a food source.
-
Ants in multiple rooms: If you're seeing ants in the kitchen, bathroom, and other areas, you likely have a large colony or multiple colonies.
-
Sawdust-like piles (frass): Small piles of what looks like sawdust near baseboards, window frames, or walls indicate carpenter ants excavating wood.
-
Rustling sounds in walls: Large carpenter ant colonies can be heard at night as they move within wall voids.
-
Winged ants indoors: Winged ants (swarmers) emerging indoors means a mature colony is inside your home and attempting to reproduce.
-
Small piles of soil near cracks: Pavement ants push excavated soil out of their nest entrances, leaving small dirt piles along foundation cracks and expansion joints.
-
Ants in winter: Seeing ants indoors during Calgary's winter means there's an active indoor colony.
For a deeper dive, see our 5 Signs You Have an Ant Infestation article.
Why DIY Ant Treatments Fail
Calgary homeowners spend thousands of dollars annually on ant sprays, baits, and traps that fail to solve the problem. Here's why:
Sprays Kill Foragers, Not the Colony
When you spray ants you see, you're killing 5-10% of the colony — the foragers. The other 90-95% (including the queen) are safely hidden in the nest. Within days, new foragers replace the ones you killed, and the trail reappears.
The Queen is the Problem
A single ant colony can have one or multiple queens, each laying up to 1,500 eggs per day. Unless the queen is eliminated, the colony regenerates. Only professional baits and treatments can reach the queen.
Some Species Make It Worse
Pharaoh ants respond to spray by "budding" — splitting into multiple colonies. A home with one pharaoh ant colony can develop 5-10 colonies after a spray treatment, making the problem dramatically worse.
Store-Bought Baits Are Too Weak
Consumer ant baits contain low concentrations of active ingredients. Professional baits use delayed-action formulations that allow foragers to carry the bait back to the colony before dying, ensuring the queen and other workers are exposed.
You Can't Find the Nest
Most ant nests are hidden — inside wall voids, under slabs, in attics, or deep in soil. Without professional equipment and experience, you can't locate and treat the actual colony.
Professional Ant Control: What Actually Works
Professional ant control eliminates the colony, not just the foragers. Here's how Calgary Pest Guard treats ant infestations:
Step 1: Inspection and Identification
A licensed technician inspects your home to:
- Identify the ant species (critical for treatment selection)
- Locate foraging trails and nesting sites
- Identify entry points and attractants
- Assess the severity of the infestation
- Check for moisture issues that support ant colonies
Step 2: Species-Specific Treatment
Treatment is customized to the ant species:
Pavement Ants:
- Exterior perimeter treatment with residual insecticide
- Crack and crevice treatment of entry points
- Wall void treatment if nesting indoors
- Non-repellent products that foragers carry back to the colony
Carpenter Ants:
- Direct nest treatment if the colony is located
- Perimeter treatment to prevent new colonies
- Moisture source identification and recommendations
- Wood treatment in affected areas
- Follow-up inspection to confirm colony elimination
Pharaoh Ants:
- Professional baiting program ONLY (never spray)
- Multiple bait stations placed along foraging trails
- Monitoring and rebaiting over 2-4 weeks
- Colony elimination confirmed through monitoring
Odorous House Ants:
- Combination of baiting and perimeter treatment
- Nest location and direct treatment when possible
- Entry point sealing
Step 3: Prevention and Exclusion
After eliminating the colony, we:
- Seal identified entry points
- Apply a protective perimeter barrier
- Provide recommendations for food and water source elimination
- Schedule follow-up if needed
Step 4: Guarantee
All ant treatments include our 100% satisfaction guarantee. If ants return between scheduled visits, we re-treat at no additional cost.
How to Prevent Ants in Calgary Homes
Prevention is the most cost-effective ant control strategy. Here's what every Calgary homeowner should do:
Kitchen and Food Storage
- Clean spills immediately. Ants can detect tiny amounts of sugar and grease.
- Store food in sealed containers. Ants can chew through cardboard and thin plastic.
- Rinse recyclables. Residue on cans and bottles attracts ants.
- Take out garbage regularly. Use bins with tight-fitting lids.
- Clean pet bowls after meals. Don't leave pet food out between feedings.
- Wipe down counters nightly. A quick wipe removes invisible food residue.
Moisture Control
- Fix leaky pipes and faucets. Even small drips attract ants.
- Use bathroom fans. Reduce humidity that ants need.
- Address basement moisture. Use dehumidifiers in damp basements.
- Check window seals. Condensation around windows attracts ants.
- Don't overwater houseplants. Excess moisture in soil attracts nesting ants.
Entry Point Sealing
- Caulk around windows and doors. Seal all gaps and cracks.
- Weatherstrip doors. Replace worn weatherstripping.
- Seal foundation cracks. Use concrete crack filler or silicone caulk.
- Install door sweeps. Block gaps under exterior doors.
- Screen vents. Install fine mesh on attic and crawl space vents.
- Seal pipe and wire penetrations. Use expanding foam or caulk where pipes and wires enter your home.
Exterior Maintenance
- Trim vegetation away from your home. Keep a 30 cm (12 inch) gap between plants and your foundation.
- Remove yard debris. Clear leaf litter, wood piles, and stones from near the foundation.
- Store firewood away from the home. Keep it at least 5 meters away and elevated.
- Fix drainage issues. Direct water away from your foundation.
- Remove aphid-infested plants. Ants farm aphids for honeydew.
Professional Prevention
- Schedule annual perimeter treatment. A spring or early-summer exterior treatment creates a barrier that prevents ants from entering.
- Consider a seasonal pest control plan. Our Seasonal Pest Control plans include ant prevention as part of year-round protection.
- Address problems early. Don't wait for a trail to appear — a few ants can become thousands within weeks.
Ant Control Cost in Calgary
Ant control costs in Calgary vary based on the species, severity, and treatment required:
Pavement and Odorous House Ants
- One-time treatment: $300-$450 for a standard home
- Includes: Exterior perimeter treatment, crack and crevice treatment, 90-day guarantee
Carpenter Ants
- Inspection and treatment: $400-$700 depending on severity
- Includes: Nest location, direct treatment, perimeter barrier, moisture assessment
- Follow-up: Recommended 30 days after initial treatment
Pharaoh Ants
- Baiting program: $500-$900 over 2-4 weeks
- Includes: Multiple bait stations, monitoring visits, colony elimination confirmation
- Note: Pharaoh ant treatment is more involved due to the baiting approach required
Seasonal Prevention Plans
- Monthly plans: From $50/month
- Includes: Quarterly perimeter treatments, priority service, guaranteed protection
- Best value: Preventive plans cost less over time and prevent infestations
For detailed pricing across all services, see our Ant Control Cost Calgary 2026 guide and our general Pest Control Cost Calgary page.
Calgary Neighbourhoods and Ant Problems
Ant pressure varies across Calgary neighbourhoods based on age, tree canopy, and soil type:
Established Neighbourhoods (High Ant Pressure)
Inglewood, Bridgeland, Mount Royal, Beltline, Kensington, Marda Loop:
These older neighbourhoods have mature trees, established ant colonies in soil and pavement, and older homes with more entry points. Pavement ants and carpenter ants are the most common problems. The mature tree canopy supports carpenter ant colonies that frequently establish satellite colonies in homes.
Newer Communities (Moderate Ant Pressure)
Sage Hill, Tuscany, Cranston, Auburn Bay, Mahogany:
Newer homes have fewer entry points but may experience ant problems as colonies establish in the disturbed soil of new developments. Field ants and pavement ants are most common. Landscaping with mulch and new plantings can attract ants.
South Calgary (Seasonal Ant Pressure)
Calgary SW, Calgary SE:
South Calgary communities see heavy pavement ant activity in summer, particularly during dry spells when ants seek water indoors. Carpenter ants are a concern in communities with mature trees.
North Calgary (Moderate Ant Pressure)
Calgary NW, Calgary NE:
North Calgary sees a mix of pavement ants and field ants. Newer communities in the north may experience ant problems as colonies establish in new landscaping.
For neighbourhood-specific pest information, see our Pests by Neighborhood guide and our Service Areas page.
Carpenter Ants: A Special Warning for Calgary Homeowners
Carpenter ants deserve special attention because they can cause structural damage to your home. Here's what Calgary homeowners need to know:
Signs of Carpenter Ant Damage
- Sawdust-like piles (frass) near baseboards, window frames, or walls
- Large black ants (6-13 mm) indoors, especially in spring
- Winged ants emerging indoors in late spring
- Rustling sounds in walls at night
- Soft or damaged wood in window frames, door frames, or sill plates
- Moisture-damaged wood anywhere in the home
Why Carpenter Ants Target Calgary Homes
Calgary's climate creates conditions that attract carpenter ants:
- Moisture from snow melt damages wood around windows, doors, and roofs
- Temperature fluctuations cause condensation that leads to wood rot
- Mature trees in established neighbourhoods support large outdoor colonies
- Older homes have more moisture-damaged wood that carpenter ants prefer
What to Do If You Suspect Carpenter Ants
- Don't spray. Spraying scatters the colony and makes professional treatment harder.
- Don't ignore it. Carpenter ant damage worsens over time and can lead to structural issues.
- Call a professional immediately. Carpenter ant treatment requires locating and treating the colony directly.
- Request a thorough inspection. A professional can identify the colony location and assess structural damage.
See our detailed Carpenter Ant Control Calgary page for comprehensive information.
Pharaoh Ants: The Hospital Ant in Calgary Homes
Pharaoh ants are a special concern because they're the most difficult ant to eliminate and can spread disease. Here's what Calgary homeowners need to know:
Why Pharaoh Ants Are Different
- Multiple queens: A single colony can have hundreds of queens, each laying eggs daily.
- Budding behavior: When disturbed (including by sprays), the colony splits into multiple new colonies.
- Indoor-only nesting: In Calgary's climate, pharaoh ants live exclusively indoors.
- Disease transmission: Pharaoh ants can carry pathogens including Salmonella, Staphylococcus, and Streptococcus.
Where Pharaoh Ants Nest
- Wall voids, especially near heat sources
- Behind baseboards and electrical outlets
- Inside appliances and electrical equipment
- In potted plants
- In any warm, humid area of the home
The Only Treatment That Works: Professional Baiting
Pharaoh ants can ONLY be eliminated with a professional baiting program:
- Identification confirmed — a professional verifies the species.
- Bait stations placed along foraging trails — ants carry the bait back to the colony.
- Monitoring over 2-4 weeks as the bait works through the colony.
- Rebaiting as needed until colony elimination is confirmed.
Never spray for pharaoh ants. Spraying causes budding and makes the infestation worse.
When to Call a Professional Ant Exterminator
Call a professional ant exterminator if:
- You see ant trails in multiple rooms
- You see large black ants (likely carpenter ants) indoors
- You see ants indoors during winter
- You've tried DIY treatments without success
- You see sawdust-like piles near walls or woodwork
- You see winged ants indoors
- You suspect pharaoh ants (tiny yellow ants that don't respond to sprays)
- The infestation has persisted for more than 2 weeks
Don't wait. Ant colonies grow exponentially, and the longer you wait, the harder and more expensive treatment becomes.
Call (825) 760-5364 or request a quote online for professional ant control in Calgary.
Ant Control for Calgary Businesses
Ants aren't just a residential problem. Calgary businesses face ant infestations that can damage reputation, fail health inspections, and drive away customers:
Restaurants and Food Service
Ants in a restaurant can lead to health code violations, negative reviews, and lost customers. Professional ant control for restaurants includes:
- Discreet, after-hours treatment
- Food-safe products and methods
- Ongoing prevention programs
- Emergency response for sudden infestations
See our Commercial Pest Control Calgary page for business pest control services.
Property Management
Property managers need reliable ant control for multiple units. We offer:
- Volume pricing for multi-unit properties
- Coordinated treatment across units
- Tenant communication support
- Documentation for lease compliance
Offices and Retail
Ants in offices and retail spaces create an unprofessional impression. Our commercial ant control includes:
- Minimal-disruption treatment
- Discreet service
- Preventive programs
- Single point of contact
Ant Control and Calgary's Climate
Calgary's unique climate affects ant behavior in ways that other Canadian cities don't experience:
Chinook Effects
Calgary's chinooks cause rapid temperature swings that can trigger ant activity even in winter. A warm chinook day can bring pavement ants out of dormancy, leading to indoor sightings when homeowners least expect them.
Dry Climate
Calgary's low humidity makes water a powerful ant attractant. Homes with moisture issues are particularly vulnerable to ant infestations because ants seek out the water source.
Short Active Season
Calgary's short warm season means ant colonies are highly active during summer months. Colonies must forage aggressively during the 4-5 month warm season, leading to more intense indoor invasions than in milder climates.
Freeze-Thaw Cycles
Calgary's freeze-thaw cycles create cracks in foundations and exterior walls that ants use as entry points. Annual inspection and sealing of these cracks is essential for ant prevention.
Natural and DIY Ant Control Methods: What Works and What Doesn't
Calgary homeowners often try natural methods before calling a professional. Here's an honest assessment:
Methods That Provide Temporary Relief
Vinegar and water spray: Kills ants on contact and disrupts scent trails. Effective for immediate cleanup but doesn't address the colony.
Diatomaceous earth: Kills ants that walk through it by damaging their exoskeletons. Can reduce foraging ants but won't eliminate a colony. Must be kept dry to work.
Baking soda and powdered sugar: A DIY bait that some ants will carry back to the colony. Less effective than professional baits due to lower active ingredient concentration.
Essential oils (peppermint, tea tree, cinnamon): Repels ants and can disrupt trails. Effective for prevention but won't eliminate an existing colony.
Methods That Don't Work
Boiling water on outdoor nests: Kills some ants but rarely reaches the queen. The colony survives and relocates.
Cinnamon sticks at entry points: Minimal effect. Ants often find alternate routes.
Chalk lines: Ants will cross chalk lines within hours. No lasting effect.
Cornmeal or grits: The myth that ants explode from eating cornmeal is false. Ants can digest cornmeal without harm.
The Honest Truth
Natural and DIY methods can provide temporary relief and help with prevention, but they cannot eliminate an established ant colony. If you have an active infestation, professional treatment is the only reliable solution.
Ant Control FAQ: Calgary Homeowners' Most Common Questions
How do I get rid of ants permanently?
Permanent ant control requires eliminating the colony, including the queen. This means locating the nest and treating it directly or using professional baits that foragers carry back to the colony. Store-bought sprays kill foragers but not the queen, so the colony regenerates. Professional treatment is the only way to eliminate a colony permanently.
Are ants dangerous?
Most ants in Calgary are a nuisance rather than a danger. However, carpenter ants can cause structural damage, and pharaoh ants can spread disease. Some species can bite or sting, though this is uncommon in Calgary's common ant species.
How long does ant treatment take to work?
Professional ant treatment begins working immediately, but you may still see ants for 1-2 weeks as the product works through the colony. Pharaoh ant baiting programs take 2-4 weeks for complete colony elimination.
Is ant treatment safe for pets and children?
Yes, professional ant treatment is safe when applied by a licensed technician. Products are applied in cracks, crevices, and exterior perimeters where children and pets don't contact them. We provide specific instructions for keeping pets and children away during and after treatment.
How often should I have my home treated for ants?
For homes with recurring ant problems, we recommend annual preventive perimeter treatment in spring or early summer. For severe or persistent infestations, a seasonal pest control plan with quarterly treatments provides the best protection.
Do ants come back after treatment?
With professional treatment that eliminates the colony, ants should not return from that colony. However, new colonies can establish, especially in neighbourhoods with high ant pressure. Annual preventive treatment and entry point sealing prevent new colonies from invading.
What's the difference between ants and termites?
Calgary does not have native termites, so if you see ant-like insects, they're ants. Winged carpenter ants are often mistaken for termites. Key differences: ants have a narrow waist and elbowed antennae; termites have a straight body and straight antennae. If you're unsure, call for a professional identification.
Can ants damage my home?
Pavement ants, odorous house ants, and pharaoh ants don't cause structural damage, but they contaminate food and are a nuisance. Carpenter ants can cause significant structural damage by excavating wood for nesting. If you suspect carpenter ants, don't delay treatment.
Why do I have ants in my bathroom?
Bathrooms attract ants because of moisture. Ants need water, and bathrooms provide it through leaks, condensation, and standing water. Fixing leaks, using exhaust fans, and sealing entry points around pipes can prevent bathroom ant problems.
Why do I have ants in winter?
Seeing ants indoors during Calgary's winter means there's an active colony inside your home. Most outdoor ant colonies go dormant in winter, so winter ant sightings indicate an indoor nest — most likely pavement ants in wall voids or carpenter ants in structural wood.
Take Action: Professional Ant Control in Calgary
Don't let ants take over your home. Calgary Pest Guard provides:
- Licensed, insured exterminators with experience treating every ant species in Calgary
- Species-specific treatment that eliminates the colony, not just the foragers
- 100% satisfaction guarantee — if ants return, we re-treat at no additional cost
- Same-day service available — call before noon for same-day treatment
- Preventive plans to keep ants out year-round
Call (825) 760-5364 or request a quote online to schedule your ant treatment today.
Related Resources
- Ant Control Calgary — Main ant control service page
- Carpenter Ant Control Calgary — Carpenter ant specialist page
- Ant Control Cost Calgary 2026 — Detailed pricing guide
- 5 Signs You Have an Ant Infestation — Identification guide
- How to Get Rid of Ants in Calgary — Homeowner's guide
- Seasonal Pest Control — Year-round pest prevention plans
- Pest Control Cost Calgary — General pricing guide
- Calgary Pest Calendar — Seasonal pest activity guide
- Service Areas — Calgary neighbourhood coverage
- Contact — Get a quote in 15 minutes
For more pest control tips and guides, browse our pest control blog or explore our full range of Calgary pest control services.