Bedbugs in Nairobi: How to Spot Them and What Actually Clears Them

The first thing worth saying, because people are embarrassed to call about this: bedbugs have nothing to do with how clean your house is.

They do not feed on dirt or crumbs. They feed on people. A spotless apartment in Kilimani gets them the same way a crowded hostel does, which is that somebody brought them in on a bag, a jacket or a second-hand mattress. Being clean helps you spot them earlier. It does not stop them arriving.

So if you are putting off calling someone because you think it says something about your housekeeping, it does not, and the delay is the expensive part.

How to confirm it is actually bedbugs

Bites alone are not proof. People react very differently, some not at all, and mosquito and flea bites get confused with bedbug bites constantly. Look for physical evidence instead.

Bites in a line or cluster. Bedbugs often feed several times along an exposed area, so a row of three or four bites on an arm, shoulder or leg is characteristic. Mosquito bites tend to be scattered and random.

Small dark spots on the sheets. Digested blood, usually along the seams of the mattress or where the sheet tucks in. They smudge if you wipe them with a damp cloth, which is how you tell them from ordinary dirt.

Blood specks. Small rust-coloured marks on the sheet where somebody rolled onto a bug that had just fed.

Shed skins. Translucent, empty shells in the seams and crevices. Bedbugs moult five times as they mature, so a real infestation leaves plenty of them.

A sweet, musty smell. Noticeable in heavy infestations, sometimes described as like overripe raspberries.

The bugs themselves. Adults are about the size and colour of an apple seed, flat when unfed and rounder and darker after feeding.

Where to look, in order

Bedbugs stay close to where people sleep. They are not roaming the kitchen. Start at the bed and work outward.

1. Mattress seams and piping, particularly at the head end.
2. The bed frame and slats, especially screw holes and joints. Wooden frames give them far more harbourage than metal ones.
3. The headboard, and the wall behind it. Headboards fixed to the wall are a very common site and often missed entirely.
4. Bedside furniture, including drawer runners and the underside.
5. Skirting boards and cracks in the floor near the bed.
6. Behind loose wallpaper, wall hangings and picture frames.
7. Sofas and armchairs, if anyone sleeps or naps on them. Seams and under the cushions.
8. Curtain hems near the bed.

A torch and a thin card to run along seams is genuinely the whole toolkit.

Why one treatment never finishes the job

This is the part that catches people out, and it is the reason for most “the fumigation did not work” complaints.

Bedbug eggs are tiny, glued into crevices, and most insecticides do not penetrate them. A treatment can kill every mobile bug in the room and still leave viable eggs behind. Those eggs hatch over roughly the following week or two, the new nymphs mature, and within a few weeks you are back to being bitten at night.

That is not a failed treatment. That is a treatment that was only half completed.

Clearing bedbugs properly needs a second visit timed to the hatch window, and usually a third for a well-established infestation. Any quote that promises one visit and done is either using a long-residual product deliberately, or it is not telling you the whole story. When you are comparing prices, compare what is actually included, because a cheaper single visit that you have to repeat twice is not cheaper.

What you should do before the technician arrives

Preparation makes a large difference to the result, and this is the part that is entirely in your hands.

• Strip all bedding and wash it hot, then dry on high heat. Heat is what kills them, not detergent. Bag the laundry as you strip it so you are not carrying bugs through the house.
• Do not move the mattress or furniture to another room. This is the most common and most damaging mistake. Moving an infested mattress to the living room turns one infested room into two.
• Do not start spraying yourself with an over-the-counter aerosol. Many are repellent, and you will scatter the population deeper into the structure and into adjoining rooms, which makes professional treatment harder and more expensive.
• Clear clutter from the floor, particularly around the bed. Bags, shoes and boxes are harbourage and they block access.
• Vacuum thoroughly, including mattress seams and the bed frame, then seal and dispose of the vacuum bag outside immediately.
• Pull furniture away from the walls so the technician can reach the skirting.
• Plan for pets and people. You will need to be out of the treated rooms for a period, so arrange it in advance rather than on the day.

If you live in a flat

This matters more in Nairobi apartment blocks than most guidance admits. Bedbugs move between units through wall voids, service ducts and along skirting. Treating your flat while the unit next door is untreated often just buys you a few weeks.

If you suspect the problem is not confined to your unit, raise it with the caretaker or the management early. Treating several affected units at the same time costs more up front and is dramatically more effective than each tenant treating in isolation and reinfecting each other in rotation.

Reducing the chance of a repeat

• Encase the mattress and box spring in a proper bedbug-proof cover, and leave it on. It traps anything remaining inside and removes the main harbourage.
• Check second-hand furniture carefully before it comes into the house. Second-hand mattresses and upholstered furniture are the single most reliable way to import an infestation.
• When travelling, keep luggage off the bed and off the floor, and inspect the mattress seams in guesthouse rooms. Unpack onto a hard surface rather than the bed when you get home.
• Keep the bed an island. Frame not touching the wall, no bedding trailing onto the floor, nothing stored underneath. It makes reinfestation measurably harder.
• Keep checking for a month after treatment. Finding a straggler at week three is normal and is exactly what the follow-up visit is for.

When to stop trying to handle it yourself

Bedbugs are one of the genuinely poor candidates for do it yourself. Fleas and ants you can often manage. Bedbugs hide in places you cannot reach, breed faster than most people expect, and punish half-measures by dispersing.

Call somebody when you have physical evidence rather than just bites, when bites continue after you have washed and heat-treated everything, when you find them beyond the bedroom, or when you are in a shared block. Early treatment of a small infestation is far quicker and cheaper than treatment of one that has had three months to spread through the flat.

The short version

Bedbugs are not about cleanliness, they are about travel and second-hand furniture. Confirm with physical evidence rather than bites alone. Wash hot, do not move the mattress, do not spray it yourself. Expect a follow-up visit, because the eggs survive the first treatment, and coordinate with neighbours if you are in a block.

Caught early, it is a manageable problem. Left for a few months, it is a much bigger one.