Meter Asset Manager (MAM)

What it is

A Meter Asset Manager (MAM) is the party appointed by a gas supplier to install, maintain, inspect and replace gas meters. The cost of providing the meter reaches you through your supplier, either built into your rates or shown as a metering charge. It is the gas-side counterpart of the electricity Meter Operator.

The MAM role is separate from the gas network. Your gas transporter looks after pipes and emergencies; the MAM looks after the meter.

Where you will see it

• Possibly as a metering charge on your gas bill, if your supplier itemises it.
• On engineer visit letters about meter exchanges, inspections or upgrades.
• Occasionally as a named company in contract terms.

Why it matters

If a meter is faulty, out of date or needs replacing, the MAM does the work, but your supplier is who you speak to. Meter rental can differ between suppliers and meter types, so it is worth checking whether it is in the unit rate or a separate daily charge when you compare quotes. Our guides on meter installation and gas meters for new premises cover the practical side.

Example

A restaurant moves into a unit where the old meter is outdated. Its supplier arranges for a MAM to fit a new one. Any metering cost is passed on by the supplier, so the owner asks whether the quoted standing charge already includes it.

Ask any new supplier whether metering is in the unit rate, the standing charge or listed separately.

Related terms

See MPRN for the number that identifies your gas supply point, and standing charges for how daily charges work.