Signs you need surge protection (spd)
- A router, TV box or aircond PCB died after a thunderstorm
- The house is on a hill, in an open area or near tall trees
- You have expensive electronics, a home office or a solar system
- Lights flicker and appliances reset during storms
- Your DB box has no SPD module
- Neighbours lost appliances in the same storm
How much does surge protection (spd) cost in KL?
Our current prices for surge protection (spd) across Kuala Lumpur and Selangor (updated October 2026). You get a fixed quote on site before any work starts.
| Job | Price (RM) |
|---|---|
| Surge protection device (SPD)per board | RM400 – RM700 |
| Earthing resistance testper test | RM200 – RM300 |
| DB box replacement, single-phaseper board · If no space for the SPD | RM1,000 – RM2,000 |
| Inspection visit (minimum charge)per visit | From RM80 |
Prices include labour and standard materials (cable, trunking, standard switches and sockets) unless the item says otherwise. See the full price list.
What's included
- 1Check the DB box for space and a suitable connection point
- 2Earth check, because an SPD is only as good as its earth
- 3Type 2 SPD sized for your supply, with backup protection
- 4Neat installation and labelling inside the DB box
- 5Show you the status window, so you know when it needs replacing
- 612-month workmanship warranty
Does Malaysia really need surge protection?
Malaysia has one of the highest lightning rates in the world, and the Klang Valley gets afternoon storms on many days, especially in April to May and October to November. Lightning does not need to hit your house. A strike on a nearby line or tree can send a surge into every socket.
Inverter aircond PCBs, TVs, routers, autogate controllers and fridge boards suffer most. Replacing one inverter aircond board can cost more than the SPD that would have protected it.
What does an SPD protect against, and what not?
A Type 2 SPD diverts surges coming in through the power supply to earth before they reach your sockets. It handles indirect lightning and grid switching surges. It will not stop a direct strike on your roof, and it cannot work if your earthing is poor.
For sensitive equipment, add a plug-in surge protector at the socket as a second layer. Unplugging the TV and router during a heavy storm is still the cheapest protection.
How long does an SPD last?
Every surge wears it a little. Most units have a window that shows green when healthy and red when the module needs replacing, so check it after each storm season. On most models the new module plugs into the same base, which costs less than the first installation.