Cockroach control for duplexes in Alysha, Riyadh

Prepared by the technical team · editorial review · last updated 13 November 2026 · Sources

Before we start: what we know about Alysha

The centre of Alysha is at 24.6308, 46.6842, about 9.2 km from the centre of Riyadh, with an approximate radius of 1.2 km. The service-area circle on the map below is drawn from this point. Main roads in or near Alysha: Imam Abdulaziz bin Muhammad bin Saud Road, Samahat Al-Sheikh Abdulaziz bin Baz Road, Asir Road.

The nearest wadi channel is about 1.2 km from the centre of Alysha (OpenStreetMap). The centre of Alysha sits about 604 m above sea level (SRTM open elevation data).

Picture a homeowner who lives in a duplex, with a ground-floor unit she rents out and an upper unit occupied by her family. One evening she notices a cockroach crossing the kitchen tiles, then another in the bathroom drain. She wants the problem gone without disturbing the tenant downstairs, and she wants to know where the pests are coming from before she pays for any treatment. For a shared-wall property like this, the answer usually lies in how the two units connect through drains, cavities and service ducts.

The local facts help explain why this matters in Alysha. The centre of the district sits at 24.6308, 46.6842, about 9.2 km from the centre of Riyadh, with an approximate radius of 1.2 km. It lies about 604 m above sea level, and the nearest wadi channel is about 1.2 km from the centre. Residents in areas close to wadi channels often notice more insect activity after rain, because runoff and damp ground draw pests toward buildings. For a duplex owner, this means the ground floor and the drainage points deserve the closest attention, since moisture gathers there first.

Start by inspecting both units together, not separately. Check under sinks, around floor drains, behind the water heater and along the shared wall for gaps, cracks and loose pipe sleeves. Seal openings with appropriate filler and keep drains covered when not in use. Next, reduce food and water sources by storing dry goods in sealed containers and fixing any dripping taps. Then book a pest-control visit to treat both units on the same day, so pests do not simply move from a treated flat to an untreated one. Expect a follow-up visit to confirm the treatment has worked. If the problem recurs, or if you also see rodents or termites, ask the technician to price each service separately so you can compare the options and choose a plan that fits your budget.

In a duplex, the two floors often share lines, so tests are done floor by floor.

Signs worth paying attention to

These are the signs most often linked to cockroach control:

• A distinctive smell in the cupboards
• Small droppings behind appliances
• Cockroaches in the kitchen at night

Where the problem usually comes from

• Gaps behind the cabinets.
• A common cause: open drain outlets.
• A common cause: damp and leaks under the sink.

Tools and methods, and when we use them

How the work is done, step by step

1. Inspection: Hiding places and entry points are found first.
2. Choosing the method: Gel baits where children or pets are present.
3. Preparing with you: What to clear from cupboards before the visit.
4. Application: Targeted placement, not general spraying.
5. Follow-up: A second visit checks the result.

Facts and costs — Alysha

Short answers for Alysha

What we advise against

• Leaving the water leak that attracts them
• General spraying in the kitchen instead of baits

What you get after the work

You receive: a visit report with the product name, active ingredient and treated spots, in a technical report with a verification code.