Visible mud tubes running up the exterior foundation wall — Haarlem, Noord-Holland
Pencil-width mud tubes running vertically up a foundation wall are highway tunnels built by subterranean termites to travel safely from soil to wood. Even a single tube means an active or recently active colony is feeding on your home's framing. Breaking a tube open may reveal live workers inside. A pest-control technician inspects the full perimeter, probes accessible wood for hidden damage, identifies the species, and applies targeted treatment — typically a liquid termiticide barrier or bait-station system — then schedules follow-up monitoring to confirm the colony is eliminated.
Who to call
For this problem in Haarlem, call a: Ongediertebestrijder
Vind een Ongediertebestrijder in HaarlemSymptoms to look for
- Brown or tan pencil-width mud lines climbing the foundation wall
- Tubes reappearing within days after you scrape them off
- Soft or hollow-sounding wood where the tubes reach the sill plate
- Swarms of winged termites near windows or doors in spring
- Small piles of discarded wings on windowsills or the garage floor
Spoeddienst in Haarlem
Spoeddiensten in Haarlem reageren binnen 25–50 minuten; de compacte monumentale binnenstad kan de toegang vertragen. Spoedtarieven rond €75–€175 voorrijden plus €70–€130/uur incl. btw.