Every year, Kenyan homeowners lose billions of shillings to termite damage — most of it completely preventable. The challenge is that termites work silently, hidden inside walls, beneath floors, and within wooden structures. By the time visible damage appears, the infestation has often been active for months or even years.
Knowing what to look for is your first line of defence. This guide explains the most reliable warning signs of termite activity in Kenyan properties, what they mean, and when you should call a professional pest controller immediately.
The Most Common Termite Species in Kenya
Before examining the signs, it helps to understand which termites you're dealing with. In Kenya, two main species are responsible for the vast majority of property damage:
Macrotermes (Mound Termites)
Found widely across Kenya, these termites build large mound nests and create extensive underground tunnel networks. They are active year-round but most visible during the rainy season.
Coptotermes (Subterranean Termites)
The most destructive species in urban Nairobi and Mombasa. They tunnel underground to reach timber and can hollow out wooden beams entirely while the surface appears intact.
7 Warning Signs of Termite Infestation
Mud Tubes Along Walls or Foundations
Subterranean termites build pencil-thin mud tubes (typically 6–12mm wide) to travel between their nest and food source. These appear on walls, foundations, and wooden skirting boards. Finding an active mud tube is a definitive sign of infestation.
Hollow-Sounding Timber
Tap on wooden structures — door frames, floor beams, skirting boards, and furniture. A distinctly hollow sound indicates termites have consumed the interior, leaving only a paper-thin outer shell.
Discarded Wings Near Windowsills
Flying termites (alates) swarm during rainy season to establish new colonies. After landing, they shed their wings. Finding piles of small, symmetrical wings near light sources or windowsills indicates recent swarming activity nearby.
Tight-Fitting Doors and Windows
As termites consume and damage wooden door frames and window surrounds, the moisture from their tunnelling warps the timber. Doors or windows that suddenly become difficult to open can be a sign of termite structural damage.
Bubbling or Blistering Paint
When termites tunnel close to a painted surface, they create moisture that causes the paint to bubble or blister in a pattern that resembles water damage. Inspect your walls carefully — particularly older painted wood surfaces.
Frass (Termite Droppings)
Drywood termites push their faecal pellets (frass) out of small exit holes. These appear as tiny cylindrical pellets, often cream or brown in colour, found piled on surfaces beneath wooden structures.
Visible Termites at Night
If you see white, soft-bodied insects inside your walls, under flooring, or within wooden furniture — particularly after uncovering damaged material — these are worker termites. They avoid light and are rarely seen until infestation is severe.
When to Call a Professional
If you observe any of the above signs — particularly mud tubes or hollow-sounding timber — do not attempt to treat the infestation yourself. Over-the-counter termite sprays only kill surface termites; they do not penetrate the colony. Improper treatment can cause the colony to scatter, making professional treatment harder and more expensive.
Contact a certified pest control specialist immediately. In Nairobi, Mombasa, and across Kenya, you can reach us at Exterminate for a free inspection. For pricing comparisons and an independent view, Pestraid Kenya's termite control page is an excellent resource.
Key Takeaways
- Mud tubes are the most reliable indicator of active subterranean termites
- Hollow-sounding timber means termites have been active inside the wood for an extended period
- Swarming season in Kenya coincides with the start of the rainy season
- Annual professional inspections are the best form of prevention
- Never attempt DIY treatment — it scatters colonies and complicates professional treatment
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