How to pest control your home

Seal up baseboards, wall gaps, and door frames before you reach for any spray or trap. Most intruders come in through structural cracks. Silicone caulk, steel wool, weather stripping–none of it is fancy, but it works. Especially in older buildings where settling shifts the structure just enough to let insects through.
If you’re seeing ants along the windowsill or centipedes in the basement, don’t assume it’s just moisture. Check for food residue, pet bowls, even damp cardboard. That overlooked recycling bin in the corner? It’s probably the main attraction.
Baits can be useful, but only if placed where critters actually travel–not just where you want them to disappear. Under appliances, inside dark cupboards, or behind the toilet–less convenient spots, but far more effective. Surface spraying without prep tends to just scatter them deeper into walls.
I’ve used natural repellents like peppermint oil, too. Sometimes they help a little, especially with spiders, though I wouldn’t count on it for an actual infestation. And be careful with pets–some “natural” ingredients aren’t safe around cats or birds, even in tiny amounts. Always double-check labels, or better yet, ask a technician before trying something new.
Don’t mix solutions, even if it seems like a shortcut. Combining products–especially aerosol types–can produce fumes you weren’t expecting. I tried that once with two store-bought brands and regretted it within seconds. Lesson learned. Stick with one method at a time, and air things out properly afterward.
Safe Indoor Pest Control Techniques for Common Household Pests
Use bait stations instead of sprays if you’re dealing with ants or cockroaches indoors. Traps reduce airborne residues and target the source more precisely. Just make sure they’re placed away from areas kids or pets might explore – under the fridge or behind the stove usually works best.
For fruit flies, skip the store-bought foggers. A shallow dish with apple cider vinegar and a few drops of dish soap will quietly clear them out overnight. If it doesn’t, the issue might be in your drain or compost bin. Run boiling water down the sink every evening for a week – sounds simple, but it often does the trick.
With mice, steel wool is your friend. Stuff it into gaps around pipes, vents, and along baseboards. They can’t chew through it, and it’s a cheap fix. Avoid poisons indoors unless you’re ready for the smell of a dead mouse behind your walls. Not worth it, honestly.
If you’ve seen silverfish or earwigs in the bathroom, check for leaks. Damp cardboard and paper are magnets. Fix the drip, dry things out, and toss any wet storage boxes. Diatomaceous earth works here too – lightly dust it along baseboards and under the sink. Wear a mask while applying, though. It’s safe, but you don’t want to breathe in the powder.
Not everything is a do-it-yourself situation. If you’re renting and unsure who’s responsible for professional intervention, this guide might help: Is pest control in Calgary the landlord’s or the tenant’s duty?. Policies vary, but the cost shouldn’t fall on you if it stems from structural issues or shared infestations in multi-unit buildings.
Last note – don’t underestimate sealing things up. Caulk around baseboards, window sills, and where cabinets meet the wall. It takes time, yes, but you’ll notice fewer unwanted guests over the months. No sprays or powders needed once the invitation’s been revoked at the source.
How to Store and Apply Chemical Treatments Without Health Risks
Keep all chemical-based solutions in their original containers, tightly sealed, and stored out of reach of children or pets–preferably in a locked cabinet in a well-ventilated area. Avoid transferring liquids or powders into food or drink containers, no matter how temporary it may seem. That’s exactly the kind of shortcut that leads to accidents.
Application Guidelines That Minimize Exposure
Use protective gloves and a basic mask when handling sprays or powders indoors. Ventilate the area by opening windows or running a fan. If you’re treating a room, clear out any exposed dishes, toothbrushes, or fabrics that come into contact with skin. Avoid over-spraying–more isn’t better here, and puddles of residue create unnecessary exposure risks. Follow label instructions precisely; that tiny font usually includes specific waiting times before re-entry.
Aftercare and Cleanup
After using a treatment, wipe down any surfaces you didn’t intend to treat–like countertops or doorknobs. Wash your hands thoroughly, even if you wore gloves. Dispose of used containers according to your municipality’s hazardous waste guidelines. In Calgary, you can check city-specific disposal info or refer to your local depot. Oh, and don’t forget: accidental exposure isn’t always obvious. If someone starts feeling dizzy, has a rash, or tastes something metallic, seek help.
For a breakdown of responsibilities in rental situations, see this: Is pest control in Calgary the landlord’s or the tenant’s duty?.
Natural and Pet-Friendly Alternatives to Traditional Pest Sprays
Skip chemical foggers and try food-grade diatomaceous earth instead. It’s non-toxic for pets and kids, but lethal to insects with exoskeletons–ants, silverfish, even cockroaches. Sprinkle a fine layer along baseboards, behind appliances, or wherever you’ve noticed activity. Just don’t overdo it. Too much dust and you’ll end up with a gritty mess no one wants to clean.
For crawling invaders, a mix of white vinegar and water (1:1 ratio) works surprisingly well as a repellent. It doesn’t kill, but it messes with their scent trails. I’ve used it under the sink and along windowsills–worked well for ants. Keep in mind though, you’ll need to reapply often. Also, the smell isn’t everyone’s favourite, but it fades.
Essential oils can help, but they’re not all created equal. Peppermint oil diluted in water (10–15 drops per cup) can deter spiders and some beetles. Just test it first–some cats react badly to strong herbal scents. Same goes for citrus-based cleaners. They smell great, but certain oils like limonene can be irritating for smaller animals. I’d avoid spraying directly on pet bedding or anywhere your dog likes to nap.
Baits and Deterrents That Don’t Harm Curious Pets

Instead of laying down poison bait, try yeast and sugar traps for fruit flies or a simple peanut butter–filled jar with a paper funnel for larger bugs. These won’t harm your pet if they get too curious. Sticky traps can also work, but place them out of reach. Cats love playing with anything that crinkles.
Outdoor sprays can be swapped for cedar mulch or crushed bay leaves along door thresholds. They don’t kill anything, but they do act as deterrents. Again–not perfect. Some insects don’t care. But others will steer clear.
Final Note
Whatever approach you try, always check labels and look up every ingredient before using it around pets. Even “natural” doesn’t always mean harmless. If you’re unsure, ask your vet–or see who’s responsible for managing the issue if you’re renting.
Q&A:
What are the safest ways to keep ants out of the kitchen?
Seal any cracks along windows, baseboards, and under sinks using silicone caulk. Clean up crumbs and spills right away, and avoid leaving pet food out overnight. To naturally repel ants, wipe down surfaces with a vinegar and water solution or sprinkle cinnamon or coffee grounds near entry points.
Can I use essential oils to repel insects indoors?
Yes, oils like peppermint, tea tree, and eucalyptus can help discourage insects such as spiders, mosquitoes, and flies. Add 10–15 drops to a spray bottle with water and lightly mist corners, windowsills, and door frames. Always test surfaces before use and avoid direct contact with pets, especially cats.
How can I tell if store-bought pest sprays are safe to use around children?
Check the label for certifications like “Child & Pet Safe” or “Low Toxicity.” Look for products based on natural ingredients or those approved by regulatory agencies such as Health Canada or the EPA. Avoid using sprays in play areas or near toys, and ventilate rooms thoroughly after treatment.
What precautions should I take before applying chemical treatments indoors?
Remove food, dishes, and utensils from exposed surfaces. Keep children and pets out of the area. Wear gloves and a mask, and follow the dosage exactly as stated on the packaging. After applying, air out the space before allowing anyone to re-enter.
Is it better to prevent pests or deal with them once they appear?
Prevention usually requires less effort and fewer chemicals than treatment. Keeping entry points sealed, storing food properly, and maintaining a dry, clean environment can help reduce the chance of infestations. Regular inspections around baseboards, under sinks, and near vents also help catch problems early.