💡 Key Takeaways
- Industrial units in Shah Alam have many natural rat entry points — loading bay gaps, pipe penetrations, and aging roller doors
- Baiting alone without sealing entry points will not solve a rat problem — exclusion work is essential
- Tamper-resistant bait stations are mandatory in commercial settings to protect staff and comply with regulations
- Monthly monitoring is the most cost-effective way to prevent reinfestations in active industrial areas
- Rat droppings near electrical cabling are a fire hazard — do not delay calling a professional
📋 Project Overview
Rat Exclusion — Shah Alam Industrial Area Case Study
The factory manager contacted Mr Pest Control Shah Alam after workers reported rat sightings near the storeroom and found gnaw marks on packaging materials. The facility — a single-storey light industrial unit of around 4,500 sq ft — had been operating for about 9 years and had no formal pest management programme in place.
The Problem
Industrial units in the Shah Alam Industrial Area are prime territory for rats. Surrounding drains, loading bays, and proximity to food packaging operations in adjacent units create conditions where rat populations can thrive. Our technician conducted a full site survey and identified the following:
- A 4 cm gap along the base of the roller shutter door — large enough for juvenile rats to squeeze through
- Two unsealed pipe penetrations at the rear wall, each approximately 5–6 cm in diameter
- Fresh rat droppings in the storeroom, along the perimeter wall, and near the electrical panel
- Gnaw marks on cardboard packaging and on a rubber insulation sleeve near low-voltage cabling
- Evidence of a run (grease marks) along the base of the back wall — indicating a regular access route
The presence of gnaw marks near electrical cabling was a particular concern. Rats gnawing through cable insulation is a known fire risk — this reinforced the need for urgent action. Our rat control service focuses on both elimination and prevention.
Our Approach
For commercial rat problems, baiting alone is rarely sufficient. Without sealing entry points, any rats eliminated will simply be replaced by new ones entering from outside. Our approach combines physical exclusion with targeted baiting to achieve lasting control.
We recommended a two-phase programme: first, an intensive exclusion and initial baiting treatment, followed by monthly monitoring visits to track activity, replenish bait, and ensure entry points remain sealed.
The Treatment
- Entry point sealing: We sealed the roller shutter gap with heavy-gauge metal kick plates. Both pipe penetrations were plugged with steel wool and secured with industrial-grade sealant — a material rats cannot gnaw through.
- Bait station deployment: Eight tamper-resistant bait stations were positioned around the interior perimeter, with additional stations near the loading bay and storeroom. All stations were locked, clearly labelled, and recorded on a site map.
- Initial baiting: Brodifacoum block bait was loaded into all stations. High-activity areas near the storeroom received double-loaded stations for the first month.
- Monthly monitoring: A monthly visit schedule was established. Each visit covers bait consumption checks, station condition, inspection of previously sealed entry points, and a visual survey of the premises.
Results & Outcome
At the first monthly monitoring visit, bait consumption was high in three stations — confirming active rat activity was being addressed. By the second visit, consumption had dropped markedly and no new droppings were found. By the third month, all bait stations showed minimal activity and the storeroom was clean.
The factory manager reported no further rat sightings after the second month. The gnawed cabling sleeve was replaced by their maintenance team following our recommendation. The monthly monitoring programme remains in place — a cost-effective way to ensure the facility stays rodent-free and compliant with workplace regulations.
"We tried setting our own traps for months with no real result. Mr Pest Control came in, found the entry points we had missed, sealed them up and deployed proper bait stations. The problem was sorted within 6 weeks."
— Factory Manager, Shah Alam Industrial Area
📚 Sources & References
- Malaysian Pest Management Association (MPMA) — Commercial Rodent Control Standards
- Department of Agriculture Malaysia — Approved Rodenticide List
- DOSH Malaysia — Workplace Safety Guidelines for Pest Hazards
- Mr Pest Control Shah Alam — 8 Years of Field Experience (Est. 2018)
Mr Pest Control Shah Alam