Bed bugs are among the hardest pests to eliminate. They hide by day, bite at night and resist most products sold in supermarkets. The good news: with the right method, you can get rid of them for good. Here is the complete 2026 guide, step by step.
Spotting an infestation
Before treating, you need to confirm the bugs are there. Several signs are unmistakable:
- rows or clusters of bites, often on the arms, back or legs, that appear on waking;
- small black spots (droppings) on sheets, the mattress or the seams;
- blood stains on the sheets after a night's sleep;
- tiny shed skins and, in heavy infestations, a distinctive sweetish smell.
Inspect the mattress seams, the base, the headboard, skirting boards and the backs of frames with a torch. Adult bed bugs measure 4 to 7 mm and hide in the smallest crevice.
Mistakes to avoid at all costs
This is where most infestations get worse. Three instincts do more harm than good:
- Off-the-shelf foggers and bombs. These release insecticide into the air but do not reach the eggs or the bugs hidden in cracks. Worse, they scatter the insects into neighbouring rooms and expose occupants to toxic fumes.
- Ever-stronger insecticides. Bed bugs now resist almost every over-the-counter product. Repeated applications only select for even more resistant populations — and sometimes push people towards illegal, dangerous products.
- Throwing out the mattress in a panic. A mattress carried out without precautions spreads bugs through corridors and the whole building. Most of the time, the mattress can be treated rather than discarded.
Heat or chemical treatment: which to choose?
There are two main approaches, often combined by professionals.
Heat treatment raises the temperature above 50 to 60 °C, the lethal threshold for bed bugs at every stage, eggs included. Dry steam treats seams, skirting boards and crevices; bed linen goes through a wash above 60 °C then a hot tumble dryer. The key advantage: no chemicals, action on the eggs, and no possible resistance.
Chemical treatment relies on approved biocides applied precisely to the harbourage zones. It effectively complements heat, especially for a residual effect that reaches bugs missed on the first pass.
In practice, a serious intervention combines thorough vacuuming, heat and approved biocides, with a follow-up check. It is this combined approach that truly ends an infestation.
Why call a professional
Treating it yourself often fails because the eggs survive and the hiding spots are poorly identified. A certified technician makes the right diagnosis from the first visit, treats every focus point, doses the products to the volume and protects the occupants. At AntinuisiblePro, the intervention relies on certified technicians, a results guarantee with a second pass if needed, and availability 7 days a week for emergencies across Val-de-Marne and all of Île-de-France. Discover our bed bug treatment and our transparent pricing.
Preventing their return
Once the infestation is treated, a few habits prevent a recurrence:
- inspect luggage and clothing when you get back from a trip, and run them through a hot dryer;
- be wary of second-hand furniture, especially mattresses and bases picked up on the street;
- seal cracks and skirting boards to remove hiding spots;
- encase the mattress and base with certified anti-bed-bug covers;
- act fast at the slightest sign: an early infestation is far easier to treat.
Take action
Do you suspect bed bugs at home? Do not wait for them to spread. Contact our experts for a free quote and a diagnosis, or use our emergency line for a fast, effective intervention that is safe for your household.
