Mice & rats
How to Get Rid of Mice in Walls Without Opening the Wall
You don't need to cut the drywall. Trap where the mice come out, seal the outside gaps first, and skip poison so nothing dies inside the wall. About $57–71 in supplies.
Category
Step-by-step plans for pests already in your home: find the source, remove it, keep it from coming back, and know when to call a pro.
Mice & rats
You don't need to cut the drywall. Trap where the mice come out, seal the outside gaps first, and skip poison so nothing dies inside the wall. About $57–71 in supplies.
Cockroaches
Gel bait plus sticky traps, not sprays: clean up food and water, put pea-sized dabs of bait where roaches hide, and recheck every 2–4 weeks. Supplies start at about $24; shared quotes for a full pro treatment run $450–$1,500.
Mice & rats
Snap traps along the eaves, metal over every roofline gap and a wet cleanup clear most attics. DIY supplies run about $57–71; shared pro sealing quotes run $1,400–$3,000.
Rats
Rats need bigger traps and tougher sealing than mice. Here's the plan, step by step, for about $65–87 in supplies; shared pro quotes for sealing jobs run $1,400–$3,000.
Mice
Vinegar, peppermint and cats won't clear a house. Sealing gaps, snap traps and locked-up food will, with no poison involved, for about $57–71 in supplies.
Mice
Two dozen snap traps, metal in every gap and food in sealed bins: the whole DIY plan costs $57–71 in supplies, versus a $2,000 median for pro sealing jobs homeowners shared.
Fall invaders
Spray clusters on the outside wall with soapy water, vacuum the ones indoors without crushing them, and seal gaps 1/8 inch or larger before fall. Indoor sprays don’t help. About $15 in supplies.
Fall invaders
Vacuum or wipe them up with a damp cloth without crushing them, seal cracks around sunny windows, and keep a 3-foot strip of bare soil at the foundation. About $5 in caulk, no sprays indoors.
Fall invaders
Vacuum or swat the sluggish flies at your windows, use a UV light trap in the attic, and seal cracks on the sunny upper walls by mid-August. Fly paper and lawn sprays don’t help. About $5 in caulk.
Flies & gnats
Remove what they breed in (ripe produce, unrinsed recycling, a sour mop, a dirty drain), then catch the rest in a jar of $1.29 cider vinegar with a drop of dish soap. No spray or exterminator needed.
Flies & gnats
Let the top 1–2 inches of soil dry, catch adults on yellow sticky cards and water in Bti every 5–7 days for about 3 weeks. Supplies cost about $25.
Fall invaders
Vacuum them into a knee-high stocking instead of crushing them, then seal the cracks they use before they fly to the house next fall. Indoor sprays don’t help. Supplies run about $15.