The Hidden Places Pests Breed in Your Home (And How to Seal Them Out)

Why Cleaning Alone Doesn't Stop Pest Infestations

Most people clean visible surfaces but miss the hidden spots where pests actually breed and shelter. Cockroaches, ants, silverfish, and mice don't live in the open — they nest in dark, warm, undisturbed spaces that rarely get attention. Identifying and sealing these spots is the most effective long-term pest control strategy.

Hidden Breeding Spots: Room by Room

Kitchen

• Behind and under the fridge — warm motor, food debris, and condensation create ideal cockroach conditions
• Inside cabinet hinges and door gaps — cockroaches lay egg cases in narrow, undisturbed crevices
• Under the sink — pipe gaps, moisture, and dark corners attract cockroaches and ants
• Behind the cooker and between appliances — grease and crumbs accumulate in invisible gaps

Bathroom

• Behind the toilet and under the cistern — moisture and warmth attract cockroaches and silverfish
• Under bathroom cabinets — damp floor edges and pipe gaps are common entry points
• Inside drain covers — organic buildup in drains breeds drain flies and cockroaches

Bedroom and Storage Areas

• Inside wardrobe bases and corners — silverfish feed on fabric and paper in undisturbed storage
• Under and behind furniture — bed bugs and spiders shelter in rarely-moved items
• Cardboard boxes — silverfish, cockroaches, and spiders nest inside stacked cardboard

Structural Entry Points

• Pipe penetrations through walls — even small gaps around pipes are highways for cockroaches and mice
• Gaps under exterior doors — mice can enter through gaps as small as 6mm
• Wall cracks and baseboard gaps — insects travel along wall edges and nest in any available void

How to Seal and Treat Hidden Spots

For each location identified:

1. Seal structural gaps with caulk or expanding foam
2. Dust Sulguy Diatomaceous Earth Powder in cracks, behind appliances, and along baseboards
3. Apply Sulguy Cockroach Gel Bait in dots inside cabinet hinges and crevices where cockroaches nest
4. Place Sulguy Insect Glue Traps along walls and under appliances to monitor activity
5. Spray Sulguy Peppermint Spray around entry points and pipe penetrations as a deterrent

For a complete prevention and treatment plan, read The Complete Home Pest Control Guide and How to Pest-Proof Your Home Before Moving In.