Bedbugs: a contemporary problem linked to our habits

Contents

• Hyper-mobility vs. second-hand: comparing new infestation vectors

• Heat treatment vs. chemical treatment: advantages and disadvantages of modern solutions

• Selection criteria and recommendations before hiring an expert in Brussels

• Conclusion

Twenty years ago, the bedbug, Cimex lectularius had all but disappeared from our Western European radar. It was thought to have been relegated to entomology textbooks. And then it came back. Not timidly, but in force, driven by our lifestyles, our suitcases, our second-hand purchases and our shared apartments. Brussels is no exception to the phenomenon, far from it.

What makes this bedbug infestation so difficult to curb is that it doesn't affect a typical profile. The student sharing a flat in Ixelles, the family who owns a home in Uccle, the business traveler who stays in one hotel after another: everyone is affected. The problem isn't hygiene. It's simply our modern lifestyle. We move more, we consume differently, we live tighter. And bedbugs love it.

Things to remember

• This article analyses how the circular economy, hyper-mobility and dense housing have transformed the bedbug into a major social challenge.

• We go beyond simple observations to guide victims towards the technological solutions best suited to our times.

• Comparison of new infestation vectors

• Advantages and disadvantages of modern solutions

This article isn't just going to tell you that bedbugs are a contemporary problem. You already know that if you're here. Instead, we're going to break down the real vectors of infestation, compare the treatments that really work, and give you concrete criteria for choosing the right professional in Brussels. And we won't mince our words.

Hyper-mobility vs. second-hand: comparing new infestation vectors

In 2025, Belgians made an average of 3.2 trips per year. Add business trips, impromptu weekends via platforms like Airbnb, and you get a constant stream of suitcases, backpacks and clothes moving from one accommodation to another. Every hotel room, every short-term rental becomes a potential point of contact. A single fertilized female slipped into the seam of a piece of luggage is enough to trigger a colony in your home within a few weeks.

Travel is the most documented vector. But is it really the most common today? Not for sure. The circular economy has exploded in recent years, and with it a channel of infestation that many underestimate. Second-hand clothes, second-hand furniture, sofas salvaged from Facebook groups: these are just some of the objects that can harbor eggs or adults, without us even suspecting it. An adult bedbug can survive for several months without feeding. An armchair stored in a garage all winter can still be infested in spring.

Why so many bedbugs this year, anyway? Part of the answer lies in this dual dynamic. On the one hand, post-Covid hyper-mobility is back with a vengeance: people are traveling as much, if not more, than before the pandemic. On the other, the second-hand craze continues unabated, driven by perfectly legitimate ecological and economic motivations. The problem is that these two lifestyle trends create a perfect breeding ground for Cimex lectularius.

So, which of these vectors is the riskiest? If we reason in terms of volume, travel wins. The number of contacts with potentially infested environments is enormous when you sleep away from home on a regular basis. A poorly inspected Airbnb between two tenants, a hotel room where turnover is too rapid for thorough cleaning: there's no shortage of opportunities. The density of urban housing in Brussels further amplifies the risk, as an infestation in one apartment can quickly spread to neighbors via technical ducts or baseboards.

The second hand is more devious. We don't think about it. We buy a batch of second-hand clothes online, and put them straight into the wardrobe. Or we pick up a bed base «in perfect condition» without checking the seams and slats. The unit risk may be lower, but the vigilance is almost nil, which more than makes up for it. My advice: systematically tumble-dry all second-hand textiles at 60°C minimum for 30 minutes before putting them in your home. For furniture, a meticulous inspection of nooks and crannies, seams and joints is essential. With a flashlight, not the naked eye, by the way.

The bottom line is that bedbug infestation is no longer an isolated incident. It's a system effect. The way we travel, consume and live in cities creates the ideal conditions for these insects to circulate and settle in. And when you consider that a female lays between 200 and 500 eggs in her lifetime, it's easy to see why the problem is becoming a public health issue.

Heat treatment vs. chemical treatment: advantages and disadvantages of modern solutions

90 % of bedbug populations in Europe are resistant to pyrethroid insecticides. This figure, derived from recent entomological studies, is a complete game-changer. For decades, the standard response to an infestation was chemical spraying. Today, relying solely on this approach is like flipping a coin, with bad odds.

Insecticide resistance is not a new phenomenon, but the extent of it in Cimex lectularius is remarkable. These insects develop genetic mutations that thicken their cuticle (their «skin»), preventing the product from penetrating. As a result, you can spray an entire nest, but the bedbugs take it in their stride and continue to reproduce. Some unscrupulous professionals multiply the number of chemical sprays with no result, charge for each visit, and the customer ends up with an apartment saturated with products and still infested. We see this regularly in Brussels.

Thermal treatment, on the other hand, is based on a principle against which no mutation can do anything: heat. Bed bugs die at 48°C and above, whatever their stage of development (egg, nymph, adult). No exceptions, no resistance possible. It's physics, not chemistry. Dry steam treatment, which projects a 180°C stream from the nozzle, is particularly effective for treating nooks and crannies, mattress seams, skirting boards and bed frames. The lethal temperature is reached within seconds at the point of contact.

Is it difficult to get rid of bedbugs with thermal treatment? It depends on the extent of the infestation and the seriousness of the technician. A well-managed thermal treatment, with prior mapping of infested areas, achieves efficacy in excess of 95 % on the first pass. Another major advantage of dry steam is that it leaves no chemical residue. No product on sheets, no special precautions for children or pets, and no delay in re-entering the home.

Is there still a place for chemicals? Yes, but as a complement, not as the main treatment. Certain new-generation molecules (based on silicon dioxide or professional diatomaceous earth) act by desiccation rather than neurotoxicity. They partially circumvent the problem of resistance to conventional insecticides. Used as a residual barrier after heat treatment, they can prevent reinfestation for several weeks. It is this combination, first thermal and then targeted chemical, that gives the best results.

What's the new bedbug treatment everyone's talking about? Honestly, there's no miracle revolution. What has changed is the rigor of the protocol. A good professional today uses canine detection to pinpoint outbreaks, treats the identified areas with dry steam, applies a new-generation residual insecticide at strategic points, then returns for a check-up after 15 days. It's methodical, not spectacular. But it works.

One final point is often overlooked: thermal treatment of the entire dwelling (heating the entire room to 55-60°C for several hours) is the most radical solution for severe infestations. It's more costly and logistically cumbersome, but when bedbugs are everywhere - behind electrical sockets, in false ceilings, in door frames - it's sometimes the only realistic option. In Brussels, a number of specialized companies offer this service, using calibrated professional equipment.

Selection criteria and recommendations before hiring an expert in Brussels

First thing: never choose a provider based on price alone. I know, it's tempting. When you're infested, you want it to stop quickly, so you look for the cheapest quote. Except that the price of pest control varies enormously depending on the method used, the surface area to be treated and the number of passes involved. A quote of €150 for a two-bedroom apartment, without prior inspection, is a red flag, not a bargain.

A serious local expert in Brussels always starts with an inspection. Always. Either a thorough visual inspection, or a canine inspection. Without a diagnosis, it's impossible to correctly size the treatment. If someone offers you a fixed price over the phone without having seen your home, don't bother. The price of a complete and serious pest control treatment for a standard apartment in Brussels is generally between €400 and €900, depending on the method and the extent of the infestation. This price should include at least two visits and a follow-up inspection.

Let's talk about guaranteed results. Many companies advertise it, but few define it clearly. What you should ask for in writing in the quotation: how many passes are included, how long the guarantee covers (minimum 30 days, ideally 60), and what happens if the bedbugs come back during this period. A professional who is confident in his method will not hesitate to commit. Anyone who remains vague on these points is likely to have a mediocre success rate.

What concrete criteria should you check before signing?

• Registration: In Belgium, all pest control companies must be registered with the biocide circuit of the FPS Public Health. Ask for the number, check it out.

• Proposed method : if all you hear about is chemicals, beware. An up-to-date professional incorporates heat treatment (dry steam or temperature rise) into his or her protocol.

• Quote transparency : details of the products used, the number of passes, and the duration of the results guarantee must appear in black and white. No «we'll see».

• Verifiable customer reviews : Look at Google, not just the company website. Look for returns that specifically mention after-care.

• Availability and responsiveness: an infestation can't wait three weeks. A local expert worthy of the name will intervene within 48 to 72 hours in Brussels.

Why are bedbugs no longer mentioned in the media, even though the problem persists? Because the novelty has worn off. After the media peak of 2023, the subject left the headlines. Infestations, however, have not diminished. The Brussels professionals I know handle as many, if not more, cases than they did a year ago. The media silence gives a false impression of a lull. Don't be fooled.

One last practical tip: when requesting a quote, contact at least three companies. Compare not the gross price, but what's included. Ask about insecticide resistance and observe the answer. A competent professional will explain why he doesn't rely on chemicals. Anyone who tells you «we'll spray and that's it» hasn't updated his knowledge in ten years.

Bedbug treatment in Brussels is a market where serious players and opportunists coexist. Your best protection is to be informed. You are now.

Conclusion

Bedbugs are a contemporary problem, directly linked to our habits: frequent travel, circular economy, urban density. None of this is going to go away, and neither are bedbugs. The good news is that solutions do exist. Heat treatment, combined with a rigorous protocol, gives excellent results when carried out by a qualified professional.

If you suspect an infestation in your Brussels home, don't wait. Every week lost means another generation of bedbugs. Ask a local expert for a detailed estimate, check his accreditation and method, and demand a written guarantee of results. And if you have the slightest doubt about what's in your bedding, have it inspected. Better a false alarm than an established colony.

Frequently asked questions