The pest control industry generates $24 billion annually — but the most effective pest management strategies cost almost nothing. Exclusion (sealing gaps) costs $10–30 in materials. Sanitation (removing food and water sources) costs zero. Monitoring (glue boards) costs $8. The expensive part of pest control is the labor, not the products — and DIY eliminates that cost entirely.
Eliminate standing water. Empty plant saucers, fix dripping faucets, unclog gutters. This prevents mosquitoes and removes the water source cockroaches need to survive.
Store food in sealed containers. Transfer open cereal, rice, flour, and pet food into jars or hard plastic containers. This eliminates pantry moths, grain beetles, and reduces ant and cockroach food sources.
Clean behind appliances. Pull out the stove and fridge quarterly and sweep up crumbs and grease. This removes the hidden food supply sustaining cockroach populations.
Pull mulch 6 inches from the foundation. Mulch against the house creates moisture and harborage. Moving it back costs nothing but eliminates the bridge pests use.
Switch porch lights to yellow LEDs. You may already have them — yellow LEDs reduce flying insect attraction by 80%+, which reduces spider, cricket, and earwig pressure near doors.
Run bathroom exhaust fans. During and 15 minutes after showers. This reduces humidity that attracts silverfish, centipedes, and mold mites — costs nothing if you already have fans installed.
Silicone caulk ($5–7): Seal gaps around pipes under sinks, around window frames, and where the wall meets the floor behind appliances. One tube handles the highest-priority entry points in most homes.
TERRO liquid ant bait ($6–8): Enclosed bait stations for sweet-feeding ants. Place along active trails. Workers carry the borax back to the queen — colony dead in 3–7 days.
Our under-$100 guide expands this with copper mesh, door sweeps, and snap traps for a comprehensive whole-home kit.
Budget pest control has limits. Termite treatment requires professional equipment and products. Severe bed bug infestations may exceed DIY capability. Wildlife removal requires licensed operators. And some situations — German cockroaches in multi-unit buildings, rodent populations in rural properties — may need professional intervention to break the cycle before DIY maintenance can sustain results.
Use our DIY vs Pro Quiz to assess whether your specific situation is DIY-appropriate, and check our cost guide for realistic professional pricing when you do need help.