Discovering that bees have moved into your wall is a stressful experience. It happens frequently in North Las Vegas — the combination of stucco construction and Africanized bee pressure in Clark County makes wall infestations one of the most common bee problems homeowners call us about.
How Bees Get Into Stucco Walls
The primary entry point for bees in North Las Vegas stucco construction is the weep screed — a metal flashing at the base of the stucco wall that allows moisture to drain out. Weep screeds have small openings that provide direct access to the space between the stucco and the framing. A bee can pass through a gap as small as 3/8 inch.
Other common entry points include:
- Expansion joints in the stucco
- Gaps around electrical conduits or plumbing penetrations
- Deteriorated caulk around windows or doors
- Cracks in stucco from settling or impact
What Happens After Bees Enter the Wall
In the first week, the colony establishes itself in the void. Worker bees begin building wax comb almost immediately. By the end of the first month, the colony has a functioning hive with brood, stored honey, and thousands of bees.
Left untreated, a wall colony follows this trajectory:
- Month 1–3: Colony establishes and grows rapidly. Comb is built throughout the available void space.
- Month 3–6: Colony reaches 20,000–40,000 bees. Honey stores develop.
- Month 6–18: Colony reaches full size of 40,000–80,000 bees. Comb fills the void from floor to ceiling.
- Summer heat: At 100°F+ days, honey warms and can liquefy, seeping through walls and ceilings and causing structural staining and damage.
Why You Cannot Spray Them Away
Aerosol insecticides kill foragers at the entry point but cannot reach the colony deep in the wall. Partial treatment also dramatically increases colony aggression — a colony that was entering and exiting without incident can become actively dangerous after spraying.
If the colony is killed but comb remains, the honey ferments, the wax deteriorates, and the void becomes a permanent attraction for future swarms.
What Proper Wall Hive Removal Involves
Complete wall hive removal is a physical process:
- Locate the colony using sound (tapping the wall) and visual indicators.
- Open the wall — cut through stucco to access the colony directly.
- Remove the colony — extract bees, comb, brood, and all honey.
- Treat the void with appropriate material.
- Restore the opening — patch the stucco.
- Seal entry points — close the original bee entry and inspect for additional access points.
The total process for an average wall hive takes 2–4 hours in North Las Vegas, done in full protective equipment due to Africanized bee risk.
When to Call
If you see bees entering and exiting a consistent point on your exterior wall, call sooner rather than later. An early-stage infestation involves less comb, a smaller colony, and lower cost. Waiting through a full season turns a manageable job into a major one.