Sub-Meter Installation Cost in Malaysia: Simple Checks Before an RM1000+ Quote

Sub-meter installation cost in Malaysia usually consists of the electrician’s wiring work and the meter purchase itself. When a meter is simply installed to an existing circuit, typical installation fees range from about RM120 to RM350. However, once the installation work includes new cables, extra circuit breakers, or changes to the distribution board, the cost climbs quickly.

In houses split into rented rooms, the original wiring rarely keeps each breaker tied to just one room. Because of that mismatch, this article covers three lighter options that still let you track each room’s usage separately: meter the largest loads first, combine or subtract readings in software, and meter sockets instead of rewiring every room circuit.

Updated September 2026. These are published price bands, not a quote for any one house. A registered electrical contractor prices the actual installation.

Why sub-meter installation cost in Malaysia splits into two main items

This article covers install pricing, not what a sub meter is. For definitions, common setups, and how room readings relate to the TNB bill, see the sub meter guide for Malaysian rentals. On any quote, the meter is one line item and the electrician’s labour is another, and it is usually the labour line that grows.

Where vendors publish an install fee, it typically covers the per-device labour only. SplitMeter lists installation from RM150 to RM350 per device. On 26 September 2026, its homepage listed hardware at RM230 for one to nine units and RM220 for 16 or more, while its buy-online page listed RM299 for one to four units and RM250 for five or more.

Pro Meter states that installation in Kuala Lumpur and Selangor runs from RM120 to RM300, depending on the connection method. PowerLah lists its meter at RM199, or RM159 at a promotional rate, with installation starting from RM120 per meter and varying by complexity. In each case, the install fee can end up near, below, or even above the price of the meter itself.

SuperHomes does not use a single hardware band across its 2026 pages. Its May billing guide lists a traditional digital meter at RM80 to RM150 and a prepaid app meter at RM250 to RM450. Its July installation guide lists a manual digital meter at RM120 to RM220 and a prepaid meter at RM350 to RM600.

The table below places those device figures beside the wiring items that can push a quote well past the meter price. The rewiring rows are market bands for new points and for rewiring part of a house — not the price of connecting one meter to an existing breaker.

Work	Published band	What the figure covers
Vendor install, per device	RM120 to RM350	SplitMeter RM150 to RM350; Pro Meter RM120 to RM300 in Kuala Lumpur and Selangor, by connection method; PowerLah from RM120, varies by complexity
Room sub-meter hardware	about RM80 to RM600	SuperHomes, May and July 2026; the pages use different bands. PowerLah RM199, or RM159 promotional
New 13A socket point	RM100 to RM180	Binapro, 10 August 2026
New 1.0 to 1.5 horsepower aircond point	RM150 to RM300	Binapro, 10 August 2026
Basic distribution board	RM400 to RM800	Binapro, 10 August 2026
Partial house rewire	about RM1,000 to RM5,000	Wiring Rumah, 2026 market reference

The socket point, aircond point, and distribution board rows come from Binapro, a Malaysian construction reference site that publishes consumer price guides for building work. Meter vendors do not itemise those wiring jobs, so Binapro’s 10 August 2026 guide is used here as a published market range. Binapro presents the figures as estimates to help a homeowner budget before asking a wireman or electrical contractor for a quotation. The real price still depends on the size of the house, how many points are added, and whether the cable runs on the surface or concealed inside the wall.

A new distribution board or a partial rewire easily overtakes the cost of the meter, while a single point added beside existing wiring stays in the same band as the device-install fee. Recommend.my (29 September 2024) priced that simpler outlet work at RM60, with an extra charge when the cable needs to be concealed in the wall.

Most houses were not wired for room-by-room billing

The ideal setup for billing is for each miniature circuit breaker (MCB) supplying only one room. A room can have several MCBs — one for lighting, one for sockets, one for aircond — but that ideal split breaks the moment any of those MCBs also supplies another room. Unfortunately, this is often the case for properties in Malaysia that are not purpose-built for co-living or room rental. The Energy Commission’s own example wiring layout itself was not drawn around room boundaries. Instead, it was drawn around load types so that cable sizing and protection components could be optimised, and that is often how Malaysian properties are wired up.

The Guidelines for Electrical Wiring in Residential Buildings (2008 edition) show a single-phase layout where lighting and fans sit on their own breakers, groups of 13-amp socket outlets share others, and a water heater or air conditioner gets a dedicated double-pole switch on its own circuit. A family terrace house wired exactly this way can have two or three bedrooms sharing one socket circuit and still be perfectly sound electrically.

Once that house is split into rented rooms, a meter on the shared socket breaker records every room on that breaker together. The aircond circuit is the more likely exception, because each aircond unit typically has its own dedicated final circuit.

Rewiring is where the cost jumps

Separating each room onto its own breaker means running new cable from the distribution board (DB), fitting extra circuit breakers, and rearranging the board so that existing circuits still fit. If the board has no spare slots, that job turns into a full DB replacement — which the table above prices from RM400 for a basic board. How the new cable runs through the house adds even more cost on top. Surface wiring in trunking is the quicker job; concealed wiring means drilling or hacking a channel into the wall and patching it afterward, which carries significant additional cost even for a single outlet.

Part of why rewiring costs more than just cable and labour is compliance. The work must be carried out by a contractor registered with the Energy Commission, and that contractor bears the cost of certification, inspection, and the paperwork that comes with the installation. A job that needs concealed wiring, a DB upgrade, or new circuit breakers is not just materials and hours — it is a certified scope with documentation proving the work was done to standard. That overhead is already baked into a legitimate quote, which is one reason a quote from a registered contractor can look higher than an informal estimate for the same job.

The good news is that a full rewire is not the only option. The next three sections cover lighter approaches that avoid most of that wiring cost while still giving each room its own tracked usage.

Meter the largest loads before rebuilding every circuit

The cheapest option is to meter only the load that has the biggest impact on the monthly bill. In Malaysian room rentals, that load is almost always the air conditioner. A 1HP aircond draws roughly 700 to 900 watts, while a ceiling fan and LED lights together draw well under 100 watts — so in a typical rented room, the aircond easily accounts for 80% to 90% of the room’s electricity cost.

The usual setup is one meter on the aircond circuit, which already has its own breaker. That meter records only the cooling load — lights, fans, and sockets stay off it and are typically bundled into the rent. How that cooling load appears on a tropical rental bill is explained in the aircond electricity cost guide.

The 80% to 90% figure is a typical share, not a guarantee for every room. A tenant running a desktop PC, a large TV, or a bar fridge shifts more of the bill onto the socket circuit, which an aircond-only meter does not capture. If a room has tenants with noticeably high-powered equipment, metering the socket circuit as well — or factoring the gap into the house rules — gives a more accurate picture. A room without a dedicated aircond circuit still needs new wiring, priced in Binapro’s RM150 to RM300 band.

Add or subtract meter readings when two rooms share a circuit

When two rooms share the same circuit, you can still bill them separately by combining meter readings with a formula instead of pulling new wiring. PowerLah lets you set a room’s tracked consumption to a custom formula that adds or subtracts readings from more than one meter. A registered contractor installs the meters, and the formula defines how those readings are combined.

Here is how it works on a single incoming circuit. The first meter measures the common supply feeding both rooms. The second meter measures Room 2 only, on the branch that splits off from that incoming line. Room 1’s tracked usage is the common reading minus the Room 2 reading, while Room 2’s tracked usage is simply the second meter’s reading. That subtraction works for Room 1 only when Room 2’s meter sits on a branch already included in the common measurement.

Two or more meters combined through a formula can still cost less than running new cable and breakers through ceilings and walls for each room. The table uses PowerLah’s promotional meter price of RM159 and installation from RM120 for a meter fitted to a circuit that already exists, and a partial rewire at RM350 per room for the rooms that need their own circuit and breakers.

	Two meters, no new cable	One meter plus a partial rewire
Meter hardware	2 × RM159 = RM318	1 × RM159 = RM159
Installation	2 × RM120 = RM240	1 × RM120 = RM120
Partial rewire	—	2 rooms × RM350 = RM700
Total	RM558	RM979

The second meter and its installation, RM279, costs less than the RM700 rewire it replaces. These are published meter figures plus an example rewire rate, not a quote for any one house. For details on how the meter, credit, and dashboard fit together, see how smart power metering works.

Socket meters, added up as one room

PowerLah also supports socket metering, where several smart sockets in one room are added up into a single room total. Each smart socket replaces the existing socket in place — no new wiring point, no cable back to the DB, and the walls stay untouched. That makes it the lowest-disruption option when tenants are known to be using high-power appliances.

The main decision upfront is which sockets should be metered. Once that is settled, the next questions are device price and what happens when credit runs out — both are covered in the prepaid electricity meter guide.

Keep in mind that metering the aircond only, combining readings with a formula, and adding up socket meters are options to consider when the aim is to keep installation cost down. When cost is not a constraint, fully isolated circuits for each room is still the better installation. Each room can then be controlled on its own, for example switched on or off automatically.

Frequently asked questions

Where to start

The meter is rarely the expensive part of sub-meter installation cost in Malaysia. Before committing to new cable for every bedroom, a site survey maps which circuits already exist and which billing model fits best — aircond-only, formula subtraction, or smart sockets. PowerLah includes that audit as part of its installation process, so the result is a scope matched to the property rather than a full rewire by default. See how PowerLah works.