We get it — when you spot a spider or an ant trail, your first instinct is to grab a can of spray from the hardware store. And sometimes that's perfectly fine. But there are situations where DIY pest control isn't just ineffective — it can actually make the problem worse.
Here's an honest breakdown from the team at Campbell's Pest Control on when you can handle it yourself and when you should call a professional.
When DIY Works
A single spider or occasional ant. If you see a lone spider in the bathroom or a few ants near a sugary spill, cleaning up and applying a store-bought bait or trap is usually sufficient. These are isolated events, not infestations.
Preventive measures. Sealing cracks, keeping food in airtight containers, trimming bushes away from your foundation, and eliminating standing water are all things homeowners should do regardless. Good sanitation is the foundation of pest prevention.
When You Need a Professional
German Cockroaches
German cockroaches are arguably the worst pest to try to handle yourself. Over-the-counter foggers and sprays scatter them into new areas of your home, spreading the infestation instead of eliminating it. Professional gel bait treatments target the colony at its source and break the breeding cycle.
Bed Bugs
Bed bugs are virtually impossible to eliminate with DIY methods. They hide in places you'd never think to look — inside electrical outlets, behind baseboards, in the folds of curtains. Professional treatment requires targeted crack-and-crevice applications and follow-up visits to catch newly hatched nymphs.
Rodent Infestations
A single mouse in the garage? A snap trap might do the job. But if you're hearing scratching in the walls or finding droppings in multiple rooms, you have a breeding population. Our rodent exclusion service doesn't just trap rodents — we seal the entry points so they can't get back in.
Tick and Mosquito Control
Citronella candles and DEET only protect a small area temporarily. Professional mosquito and tick yard treatments create a residual barrier across your entire property that lasts weeks. This is especially important for families in lake communities like Belgrade, Oakland, and Rome where outdoor time is a way of life.
Recurring Problems
If pests keep coming back despite your best efforts, there's an underlying issue that DIY can't address — an unsealed entry point, a hidden nest, or a moisture problem attracting them. Our general pest control starts with a thorough inspection to identify the root cause, not just the symptoms.
The Hidden Cost of Waiting
One of the biggest mistakes homeowners make is waiting too long. A minor ant problem in March becomes a carpenter ant infestation by June. A few mouse droppings in October becomes a full colony in your attic by January — along with contaminated insulation that needs to be replaced.
Professional pest control is an investment in prevention. It almost always costs less than the damage repairs and repeated DIY purchases that come from delaying.
What to Expect When You Call Campbell's
We keep it simple. You call, we show up the same day whenever possible, and we give you an honest assessment — no pressure, no upselling. If it's something you can handle yourself, we'll tell you. If it needs professional treatment, we'll explain exactly what we'll do and what it costs before we start.
We serve homeowners and businesses across Central Maine, including Pittsfield, Fairfield, Dexter, Corinna, Clinton, Unity, Burnham, Canaan, St. Albans, Sidney, and Windsor. See all service areas.
Learn more about our team and our approach, or contact us directly to schedule your free inspection. You can also request service online — we respond the same business day.
Not sure what you're dealing with? Read our guide on the 5 signs you have a pest problem, or check out our seasonal pest calendar to see what's most active right now.
Browse our complete list of pest control services to find the right solution for your property.
