Cockroach Control Complete Guide
A step-by-step professional approach to eliminating cockroach infestations.
π― Overview
Cockroach control works best when pesticides are used correctly and combined with inspection, sanitation, and exclusion. Pesticides alone will not solve the problem unless applied to the right areas.
The goal is to:
Choose the Right Pesticide Type
Long-lasting protection
Remain active on surfaces and kill cockroaches when they walk over treated areas.
Use on:
- β’Baseboards
- β’Cracks and crevices
- β’Under sinks
- β’Around plumbing
- β’Exterior foundation
Best formulations:
β Avoid spraying:
- β’Food prep surfaces
- β’Open areas where cockroaches do not travel
Apply in the Right Locations
π Inside the Home
- β’Under sinks
- β’Behind refrigerators
- β’Behind stoves
- β’Inside cabinets
- β’Wall voids
- β’Plumbing penetrations
πΏ Outside the Home
- β’Foundation perimeter
- β’Mulch areas
- β’Tree bases
- β’Firewood piles
- β’Crawlspace entrances
Treat Entry Points
Cockroaches enter through gaps and openings. Treat and seal:
- β’Door gaps
- β’Window frames
- β’Pipe penetrations
- β’Foundation cracks
π‘ Use pesticide first, then seal the opening.
π½ Bathroom Entry Points & Causes

Use Combination Treatment
Best professional method combines all four:
Residual spray
Kill contact roaches
Bait
Kill the colony
Dust
Treat hidden voids
IGR
Stop reproduction
This combination provides complete control.
Focus on Outdoor Sources
Many cockroach infestations start outside. Treat:
- β’Mulch beds
- β’Tree holes
- β’Firewood
- β’Leaf litter
Remove debris and apply pesticide to these areas.
Avoid Common DIY Mistakes
Correct placement is more important than quantity.
Expected Results Timeline
IGRs improve long-term success significantly.
π Professional Insight
Professionals do not rely on sprays alone. The most effective programs combine:
This prevents reinfestation and eliminates the colony.