Mice in The Greens: Where They Actually Get In (And Who's Supposed to Pay)

A first-floor tenant in Al Thayyal 4 called us in February after hearing scratching above the kitchen ceiling for three nights running. We sent a technician with a borescope. The false ceiling cavity above her oven hood had three live house mice, one half-eaten dishcloth, and a cluster of droppings against the AC condensate pipe sleeve where it passed through the external wall. The pipe sleeve had a 2 cm annular gap. The mice had been walking in from the building's exterior cladding cavity through that gap, every night, for an unknown length of time.

This is the standard Greens and Greens Views mouse pattern. Low-rise Emaar walkup, manicured ground-floor lawn, basement parking with a grease trap, ground-floor garbage room backing onto landscaped beds, and at least one unsealed AC condensate sleeve giving rodents a riser into the wall void. The cleaner the apartment, the more shocked the tenant when we point at the cladding gap.

If you're hearing scratching, finding droppings under the sink, or you've spotted an actual mouse in The Greens, this guide explains where they're getting in, what it costs to fix, and what's the building's job versus yours.

What you're dealing with

Two rodent species turn up in The Greens:

• House mouse (Mus musculus) — small (7–10 cm body, plus tail), grey-brown, very common in upper-floor apartments. Travels 3–10 m from harborage. Will nest in a kitchen drawer, false ceiling cavity, or behind a kickplate. The ones inside your unit are almost always house mouse.
• Norway rat (Rattus norvegicus) — much larger (20–25 cm body), brown, lives in basement parking, the grease trap room, drainage chambers, and the ground-floor garbage area. Rarely climbs to first floor or above unless food pressure forces it. Damage in the parking, trash near the dumpsters, gnaw marks on car wiring — that's Norway rat.

If you've heard scratching above your ceiling on floors 2–6, that's house mouse. If you've seen something the size of a small cat run across the basement parking, that's Norway rat. Treatment for the two is genuinely different and so is the responsibility split.

Why The Greens layout invites mice

The Greens and Greens Views are Emaar low-rise developments built between 2002 and 2008 — 4-to-6-storey blocks arranged around landscaped courtyards, basement parking with shared grease trap rooms, and ground-floor garbage facilities backing onto the lawns. The format is genuinely pleasant to live in. It's also a textbook rodent-friendly building stock.

Four entry routes account for nearly every house mouse case we treat in the community:

1. AC condensate pipe sleeves through external walls. Original construction sealed these with a flexible foam that has degraded. Most first- and second-floor units we inspect have at least one sleeve with a 1–3 cm gap. A house mouse needs 6 mm.
2. Cladding-to-window gaps. Aluminium window frames pulling slightly away from cladding over time, particularly on south-facing facades that take heat cycling. Mice climb the cladding from a flowerbed below and walk in.
3. Roller-shutter and garage-door brushes. The ground-level garbage room and basement parking ramp doors have weather-seal brushes that wear. Once worn enough, mice walk straight in.
4. Drain and sewer-line openings in the kitchen and bathroom risers. Less common — usually older buildings only — but we still find it on Onyx 1 and 2.

Layer in: ground-floor restaurants and convenience stores at Al Thayyal Plaza and the parade across from Onyx Towers. Permanent food source on the building exterior, mice follow the wall-cavity highway up.

The borescope inspection

DIY mouse control in The Greens almost always fails because the tenant treats the visible problem (droppings under sink, kitchen kickplate, behind oven) and never finds the entry point. The mouse population is being topped up nightly through whatever sleeve or cladding gap the building has. Trap one, three more arrive the next week.

A real inspection involves:

• Borescope of the false ceiling above the kitchen, bathroom, and laundry — the three rooms with services running into the wall void.
• Visual + tactile audit of every external wall plate: AC pipe sleeves, electrical conduits, water-line penetrations, drain stack penetrations.
• Cladding-to-window gap survey on every external window from outside the unit (technician on the parking-deck side or balcony).
• Kitchen kickplate removal to expose the cabinet base and the wall void behind.
• Trail-marker mapping — fluorescent tracking dust laid at suspected entry points overnight; UV-light inspection the next day shows the mouse's actual route.

Output is a marked plan, photographed entry points, and a quoted exclusion + treatment plan.

Inspection is typically AED 200–320, refundable against treatment.

The treatment + exclusion protocol

Killing the mice currently in your unit is the easy half. The hard half — and the part DIY misses — is sealing the entry points so the population isn't replaced from the building's wall cavity.

Snap traps + tamper-resistant bait stations inside the unit

We place snap traps (T-Rex or Victor Quick-Kill) along the kitchen kickplate, inside the under-sink cabinet, and behind the laundry machine. Snap traps work fast, give us a body for ID confirmation, and are safe around small pets when placed inside cabinets behind kickplates.

For units with kids or pets, we use tamper-resistant bait stations with first-generation anticoagulant bait (warfarin or chlorophacinone). Dubai Municipality restricts the use of second-generation anticoagulants (brodifacoum, bromadiolone) in residential common areas because of secondary poisoning risk to pets and the local cat population — we follow that rule strictly. First-generation is slower (5–10 days for population effect) but appropriate for a residential unit.

Exclusion at the entry point

For each AC condensate sleeve gap: copper mesh stuffed into the gap, sealed with rodent-grade silicone or expanding foam over the mesh. Copper mesh because mice can chew through standard steel wool over time but copper mesh holds. Foam alone gets chewed through in 2–4 weeks.

For each cladding-to-window gap: backer rod + silicone, or aluminium-strip cover trim if the gap is large. Some of these need a contractor not us, and we'll flag that clearly.

For each drain or sewer penetration with a gap: copper mesh + plumber's epoxy.

Common-area coordination

This is where The Greens gets tricky. The building's common areas — the basement parking, the grease trap room, the ground-floor garbage facility, the cladding cavities themselves — are FM territory, not yours. Emaar's appointed FM operator (typically Imdaad or one of the rotating contractors over the years) is responsible for treating these.

For a real fix you need:

• Tenant-paid in-unit treatment + exclusion (your responsibility under your tenancy contract for in-unit pest issues).
• Building-paid common-area baiting + exclusion (master community fee).

We document our in-unit work with photos and produce a building-action report you can email to the FM team requesting common-area treatment. We've had that report accepted in 14 cases this year — the FM scheduled common-area baiting in response. We've also had it ignored. Persistence helps.

Real cost band

From our 2026 Greens and Greens Views jobs:

• Inspection only: AED 200–320 (refundable).
• Studio in-unit treatment + 2 entry-point exclusions: AED 480–680.
• 1-BR in-unit treatment + 3–5 exclusions: AED 680–960.
• 2-BR in-unit treatment + 4–7 exclusions: AED 950–1,400.
• Quarterly maintenance contract (4 visits including monitoring stations): AED 1,800–2,600 per year.
• Common-area treatment (negotiated through FM): roughly AED 4,500–8,000 per building per year.

Warranty: 90 days on standard treatment with sealed entry points. If a mouse re-appears in the warranty window from an entry point we sealed, we re-do at no charge. From a new entry point — we'll inspect for free and quote.

For a comparable industrial-scale rodent treatment cost benchmark, see the Al Quoz warehouse rodent control breakdown. For a villa-format rodent profile in Khalifa City, see the rat control villa case.

What you can do this week

1. Crawl the under-sink cabinet with a torch. Look for droppings (small, dark, rice-grain-sized — not the larger rat droppings), gnaw marks on packaging, smear marks (greasy darkened tracks where mice repeatedly travel).
2. Pull off the kitchen kickplate (usually clipped on, sometimes screwed). Look at the cabinet base — droppings here mean active travel.
3. Walk outside your unit and look at every AC condensate pipe where it enters the external wall. Photograph any visible gap.
4. Email Emaar / your FM operator with the photos and request a building-wide rodent inspection, citing the visible exterior pipe sleeve gap. Reference master community fee scope.
5. Don't put down rat poison from Carrefour. It's almost certainly second-generation and not allowed in residential common-area baiting under DM rules. A poisoned mouse that dies inside your wall void is a 2-week stink problem.

FAQ

How are mice getting into my Greens apartment?

Most commonly through an unsealed AC condensate pipe sleeve in the external wall, or a cladding-to-window gap on the facade. Less commonly through a drain riser penetration in the kitchen wall. Very rarely through the front door. A real inspection identifies the specific entry point — DIY almost always misses it.

Will the building's FM team treat for rodents in The Greens?

For common areas (basement parking, garbage rooms, grease trap room, exterior cladding cavities) — yes, that's master community fee scope, and they're supposed to. Whether they actually treat on a regular cycle varies year-to-year by contractor. For your in-unit problem — no, that's tenant responsibility under most Greens tenancy contracts. We can produce documentation to push the FM on the common-area work.

Are there rats or mice in The Greens?

Both, but in different places. Mice (Mus musculus) are the apartment-floor problem. Norway rats (Rattus norvegicus) live in the basement parking and garbage facilities — rarely climbing to occupied floors. If you've seen something genuinely large in the parking, that's Norway rat and it's a building-level problem.

What's the cost of rodent treatment for a Greens apartment?

For a 1-BR with 3–5 entry-point seals plus snap traps and bait stations, AED 680–960 is the typical range for a one-time treatment. Quarterly maintenance contracts run AED 1,800–2,600 per year. Avoid AED 199 'rodent control' offers — those are a single visit with no exclusion work, and the mice will be back inside a month.

Dealing with mice in The Greens or Greens Views? Book an inspection with PestSwift — we cover the whole community and we'll give you the building-action report to push the FM on common-area work.