Electrical Guides for Malaysian Homes & Businesses | Luco Grouphttps://www.lucogroup.com.my/blog/Clear answers on wiring costs, tripping breakers, TNB supply, EV chargers and safety, written by an ST-registered electrical contractor and backed by Suruhanjaya Tenaga, TNB and Bomba sources.en-my House Wiring Cost in Malaysia: Price Per Point, Packages and What's Includedhttps://www.lucogroup.com.my/blog/house-wiring-cost-malaysia/https://www.lucogroup.com.my/blog/house-wiring-cost-malaysia/Tue, 10 Nov 2026 01:00:00 GMTReal all-in prices for light, fan, socket, aircond and water heater points in Malaysia, the ST cable-size rules behind them, and how to estimate your own wiring job. Why Your DB, RCCB or ELCB Keeps Tripping (and How to Find the Faulty Circuit)https://www.lucogroup.com.my/blog/rccb-db-keeps-tripping/https://www.lucogroup.com.my/blog/rccb-db-keeps-tripping/Tue, 10 Nov 2026 01:00:00 GMTFind out why the breaker or RCCB in your DB keeps tripping, how to safely trace the faulty circuit in 5 minutes, what Malaysian law requires, and when to call a registered electrician. Upgrading from Single-Phase to Three-Phase TNB Supply: When You Need It, Costs and Stepshttps://www.lucogroup.com.my/blog/tnb-three-phase-upgrade/https://www.lucogroup.com.my/blog/tnb-three-phase-upgrade/Tue, 10 Nov 2026 01:00:00 GMTWhen a Malaysian home needs three-phase supply, the TNB connection charges, the step-by-step application through a registered contractor, and what the electrical work costs. Home EV Charger Installation in Malaysia: Landed Homes, Condos, Costs and Tax Reliefhttps://www.lucogroup.com.my/blog/ev-charger-installation-malaysia/https://www.lucogroup.com.my/blog/ev-charger-installation-malaysia/Tue, 10 Nov 2026 01:00:00 GMTHow to install a home EV charger in Malaysia: 7.4 kW vs 11 kW vs 22 kW, whether you need TNB approval, condo JMB consent, wiring requirements, costs and the RM2,500 income tax relief. How Your TNB Electricity Bill Is Calculated (and Why It Went Up)https://www.lucogroup.com.my/blog/tnb-bill-explained/https://www.lucogroup.com.my/blog/tnb-bill-explained/Tue, 10 Nov 2026 01:00:00 GMTA plain-English breakdown of the TNB domestic tariff in force since July 2025: energy, capacity and network charges, the AFA surcharge, SST, and the electrical faults that quietly push your bill up. How to Check if an Electrical Contractor Is Registered with Suruhanjaya Tenagahttps://www.lucogroup.com.my/blog/st-registered-electrical-contractor/https://www.lucogroup.com.my/blog/st-registered-electrical-contractor/Tue, 10 Nov 2026 01:00:00 GMTWhy Malaysian wiring must be done by an ST-registered electrical contractor, what Class A to D and PW2 or PW4 mean, how to verify a contractor in ECOS, and the red flags to avoid. DB Box Replacement in Malaysia: When to Change It, What Goes Inside and How Much It Costshttps://www.lucogroup.com.my/blog/db-box-replacement/https://www.lucogroup.com.my/blog/db-box-replacement/Tue, 10 Nov 2026 01:00:00 GMTWhen your distribution board needs replacing, what a compliant modern DB contains under ST rules, how many ways you need, and what a single-phase or three-phase DB change costs in Kuala Lumpur and Selangor. Rewiring an Old House in Malaysia: Warning Signs, Cost and What the Job Involveshttps://www.lucogroup.com.my/blog/rewiring-old-house/https://www.lucogroup.com.my/blog/rewiring-old-house/Tue, 10 Nov 2026 01:00:00 GMTHow to tell if your house needs rewiring, what full and partial rewiring cost for terraces and condos in Malaysia, the tests an ST-registered contractor must carry out, and how to plan it with a renovation.