UK domestic energy supplier

Manx Gas UK

Q: How do I switch to Manx Gas?

Switching to Manx Gas takes about five working days under the new Faster Switching service, and your supply is never interrupted. Sign up online with your address, postcode and a recent meter reading. Manx Gas will arrange the transfer with your current supplier, including the final meter reading and the closing bill.

Q: Are there exit fees on Manx Gas tariffs?

Most UK fixed-term tariffs include an exit fee (typically £25-£75 per fuel) if you switch before the contract ends. You can switch without an exit fee in the last 49 days of your contract. Variable tariffs (including the default tariff capped by the Energy Price Cap) have no exit fees.

Q: How do I contact Manx Gas customer service?

You can reach Manx Gas on 01624 644444, Mon-Fri, 8.30 a.m. to 5 p.m. (pay your bill 24/7). For a full breakdown of phone lines (emergency, prepayment, HomeCare, bereavement, Welsh, Relay UK), see the Manx Gas contact page.

Founded in 1837 and headquartered in Douglas, Manx Gas (trading as Isle of Man Energy since 2024) is the sole gas supplier on the Isle of Man. It distributes natural gas through a mains network across Douglas, Onchan, Ramsey, Castletown and Peel, plus metered LPG by mini-bulk tank and cylinder elsewhere on the island. Tariffs are set by Manx Gas and approved in advance by CURA, the local utilities regulator.

See Manx Gas tariffs Contact Manx Gas

Founded 1837 About 17,000 mains and metered-LPG customers Douglas, Isle of Man

Founded

1837

Years on the UK market

Customers

About 17,000 mains and metered-LPG customers

Households served

Employees

About 90 (Isle of Man-based)

Workforce size

About

Who is Manx Gas?

Registered as Manx Gas Limited (trading as Isle of Man Energy), Manx Gas uses this legal name for Ofgem licence filings, contracts and any formal communications. The trading name customers see on bills is the shorter, more recognisable form.

The company is headquartered in Douglas, Isle of Man, where it runs its senior management, customer operations and regulatory liaison with Ofgem.

Manx Gas was established in 1837. A longer track record means more years operating under Ofgem rules and a wider history of customer feedback, billing systems and regulatory interactions.

Manx Gas is part of the Islands Energy Group (IEG), sister brands Guernsey Gas and Jersey Gas group, which provides shared governance, financial backing and a broader pool of expertise in trading, hedging and regulatory work.

The company is regulated by Ofgem, the UK's energy regulator, and its complaint handling falls under the Energy Ombudsman alternative dispute resolution scheme.

Who owns Manx Gas?

Ownership: Privately owned
Listed: No (parent IEG is privately held)
Parent: Islands Energy Group (IEG), sister brands Guernsey Gas and Jersey Gas
Holders: Wholly owned by Islands Energy Group Ltd, in turn held by funds managed by Ancala Partners LLP (a UK infrastructure investor). IEG also owns Guernsey Gas and Jersey Gas.

Network coverage

Where Manx Gas supplies energy

Manx Gas operates on 2 distinct distribution networks. Each network has its own pricing, regulatory rules and competing suppliers, check which one covers your postcode before comparing tariffs.

Network

Isle of Man, mains natural gas

Sole licensed natural-gas distributor and supplier

Connections: About 14,000 mains-connected households & businesses
Mains: ~230 km of low- and medium-pressure mains
Investment: Natural gas imported by sea, regasified and distributed from the Pulrose terminal

Main towns & areas

Douglas (densest mains coverage)
Onchan
Ramsey
Castletown
Peel
Port Erin
Port St Mary
Laxey

Good to know: The Isle of Man mains network distributes <strong>natural gas</strong> (calorific value 37.5 to 43 MJ/m³), unlike the Channel Islands sister utilities which run on LPG. Domestic appliances therefore do not need conversion when moving from a UK mainland natural-gas supply.

Network

Off-mains metered LPG (mini-bulk & cylinders)

Bulk-tank and cylinder LPG for properties beyond the mains

Connections: About 3,000 metered-LPG customers
Investment: Tanker fleet operating from Douglas; 47-kg cylinder fill and exchange

Main towns & areas

Off-mains rural parishes (Andreas, Bride, Lonan, Maughold, Patrick, Lezayre)
Mini-bulk tanks, 7.08 kWh per litre
47-kg propane cylinders, 652.95 kWh per cylinder
Auto-replenish or on-demand delivery

Good to know: Metered LPG is delivered by tanker (mini-bulk) or in 47-kg cylinders. Each litre of LPG provides 7.08 kWh and each 47-kg cylinder 652.95 kWh, conversion factors used to settle bills in pence per kWh. There is no daily standing charge on the cooking-only LPG tariffs.

Current tariffs

Manx Gas tariffs: as of 1 July 2025 (no change at January 2026)

The Isle of Man is a Crown Dependency outside the GB Energy Price Cap. Manx Gas tariffs are set by the company and approved in advance by CURA, the Communications and Utilities Regulatory Authority. Following CURA’s December 2025 review, gas prices remain unchanged at the start of 2026, with the next mid-year review scheduled for June 2026. All unit rates below include 5% VAT at the domestic rate but exclude the 1% direct-debit discount. There are no exit fees on Manx Gas domestic tariffs.

Manx Gas domestic and business tariff unit rates as of 1 July 2025 (no change at January 2026)
Tariff	Network	Type	Unit rate	Standing	Effective
Mains Gas Central Heating (Tariff Banding A) Default tariff for mains natural-gas customers using gas for central heating, hot water, cooking and gas fires. Single flat rate per kWh regardless of time of day. Quarterly meter... Term: Rolling, no fixed term · no exit fee	Mains natural gas, All Island	Variable	10.287 p / kWh	16.8958 p/day	1 Jul 2025
LPG Central Heating, Mini-bulk Off-mains equivalent for households using gas for central heating and hot water from a metered mini-bulk LPG tank. Bills convert litres delivered to kWh at 7.08 kWh per litre. Same... Term: Rolling, no fixed term · no exit fee	Off-mains, metered mini-bulk LPG	Variable	10.287 p / kWh	17.7075 p/day	1 Jul 2025
LPG Central Heating, 47 kg cylinder For off-mains households on 47-kg propane cylinders running gas central heating. Bills convert each cylinder to 652.95 kWh. Same unit rate as mains and mini-bulk CH; standing charg... Term: Rolling, no fixed term · no exit fee	Off-mains, 47-kg propane cylinder	Variable	10.287 p / kWh	19.3218 p/day	1 Jul 2025
Natural Gas Cooking (Tariff Banding NA) Cooking-only tariff for mains natural-gas customers without central heating or a gas fire on the supply. Nil daily standing charge in exchange for a higher unit rate, you pay nothi... Term: Rolling, no fixed term · no exit fee	Mains natural gas, cooking only	Variable	14.0112 p / kWh	None	1 Jul 2025
Natural Gas Fire (Tariff Banding NB) For mains natural-gas customers using gas only for a fireplace (no central heating or hot water on gas). Lower standing charge than CH tariffs but higher unit rate, designed for lo... Term: Rolling, no fixed term · no exit fee	Mains natural gas, gas fire only	Variable	11.8976 p / kWh	6.0242 p/day	1 Jul 2025
LPG Cooking (Tariff Banding AK / CA) Off-mains LPG equivalent of the cooking-only tariff for households running just a gas hob (no CH or hot water). Nil daily standing charge; pay only for the gas you actually use, se... Term: Rolling, no fixed term · no exit fee	Off-mains, metered LPG, cooking only	Variable	17.2326 p / kWh	None	1 Jul 2025
LPG Gas Fire (Tariff Banding BK / CB1) Off-mains LPG equivalent of the gas-fire tariff for households using gas only for a fireplace. Lower standing charge than the LPG central-heating plans, with a unit rate sized for... Term: Rolling, no fixed term · no exit fee	Off-mains, metered LPG, gas fire only	Variable	12.6294 p / kWh	6.0242 p/day	1 Jul 2025
4Gen Gas (carbon-reduction add-on) Optional add-on bundled with any standard Manx Gas tariff: matches your gas use against certified green gas in the network. Costs about 55p extra per day for an average natural-gas... Term: Opt-in monthly add-on · no exit fee	Add-on bundled with any tariff above	Fixed	Add-on add-on	None	1 Jul 2025

Open the full Manx Gas tariffs page

Regulator

Who regulates Manx Gas?

Independent watchdog responsible for licences, price approvals and customer-protection rules.

Complaints escalation (ADR): Communications and Utilities Regulatory Authority (CURA), Isle of Man

Timeline

Manx Gas — key dates

A short timeline of the Manx Gas brand — founding, milestones, regulatory events.

1837
The Isle of Man Gas Light Company is incorporated by act of Tynwald to provide gas for street lighting and cooking in Douglas. One of the oldest gas utilities in the British Isles still trading today.
Late 1800s
Mains gas extends to Castletown, Peel and Ramsey through a series of locally chartered companies, later consolidated under the Manx Gas brand.
1922
Electricity replaces gas for street lighting in Douglas; Manx Gas pivots fully to domestic heating, hot water and cooking.
1960s
The mains supply transitions from manufactured coal-gas to imported natural gas and LPG, raising calorific value and enabling modern central-heating boilers across the island.
2010s
Manx Gas partners with FlowSmart boilers, offering fuel-bill savings on installations and gradually upgrading the on-island appliance stock.
2018
Islands Energy Group (IEG, parent of Manx Gas, Guernsey Gas and Jersey Gas) is acquired by Ancala Partners, a UK infrastructure investor.
2021
Manx Gas continues to provide natural gas and LPG to domestic and commercial customers across the Isle of Man, with mains coverage extending across Douglas, Onchan, Ramsey, Castletown and Peel.
2023
Following CURA pressure on wholesale costs, Manx Gas applies a 16% mains-gas price reduction in March 2023, reflecting the easing of European wholesale gas prices.
2024
Customer-facing brand transitions from "Manx Gas" to "Isle of Man Energy". The legal entity remains Manx Gas Ltd, a member of Islands Energy Group; the new brand reflects the IEG group identity and the introduction of the 4Gen Gas carbon-reduction programme.
2025-07
Latest CURA-approved tariff schedule takes effect on 1 July 2025: mains-CH unit rate 10.287 p/kWh, standing charge 16.8958 p/day; cooking-only mains tariff 14.0112 p/kWh with no standing charge.
2025-12
CURA confirms gas prices will remain unchanged at the start of 2026, citing Isle of Man Energy’s forward-purchase hedging strategy and demand assumptions for the year ahead.
2026-06
Next CURA review of Manx Gas tariffs scheduled. The regulator has indicated any mid-year change is expected to be modest, dependent on wholesale gas market conditions.

Where the energy comes from

Manx Gas generation portfolio

Manx Gas does not generate gas on the island, it imports natural gas through the GB-Isle of Man interconnect and propane (LPG) by sea, then distributes both through the mains network and tanker fleet. The assets below describe the supply chain.

~230 km

Mains gas

Natural-gas distribution network

~17k

Customer base

Mains + LPG mini-bulk + cylinders

1837

Year founded

One of the oldest UK utilities

24/7

Emergency line

0808 1624 444, free, all year

Manx Gas owned generation assets and partner generators
Asset	Technology	Location	Capacity
Pulrose gas terminal	Natural-gas import & pressure regulation	Pulrose, Douglas	Strategic intake for the mains network
Mains natural-gas distribution	Low- and medium-pressure mains	Douglas, Onchan, Ramsey, Castletown, Peel	~230 km of mains, ~14,000 connections
LPG mini-bulk fleet	Road-tanker LPG deliveries	Island-wide (off-mains rural parishes)	Auto-replenish or on-demand
Cylinder LPG depot	47-kg propane cylinder fill & exchange	Douglas	Cylinder swap and refurbishment
Engineering & install team	Boiler install, servicing, breakdown cover	Island-wide (Gas Safe registered)	In-house engineers based at Murdoch House

Islands Energy Group (IEG) coordinates wholesale gas procurement across Manx Gas, Guernsey Gas and Jersey Gas to share scale on shipping and hedging contracts, the strategy CURA cited in December 2025 when it confirmed prices would not rise at the start of 2026.

Recognition

Manx Gas awards & accreditations

Independent badges that tell you whether a supplier walks the talk on price, service and sustainability.

CURA-approved tariff schedule

2025-2026

Tariff schedule formally approved by the Communications and Utilities Regulatory Authority (CURA), the Isle of Man’s independent utilities regulator.

Gas Safe Register

Every engineer

All Manx Gas service engineers are Gas Safe registered, the legally recognised list of qualified gas engineers in the British Isles.

IGEM Company Member

Ongoing

Member of the Institution of Gas Engineers and Managers (IGEM), technical standards body for the UK and Irish gas industry.

Islands Energy Group (IEG) family

Since 1990s

Sister utility to Guernsey Gas and Jersey Gas under Islands Energy Group; shared procurement scale and engineering best practice.

4Gen Gas carbon-reduction programme

Since 2024

Voluntary opt-in scheme matching customer gas use against certified green gas in the network, part of the IEG net-zero roadmap.

Vulnerability commitment & Priority Care

Ongoing

Vulnerable-customer register for households relying on gas for medical equipment, mobility-impaired occupants and pensionable-age customers, with priority service-restoration and password-protected engineer visits.

189 years of continuous trading

1837-2026

Founded in 1837, Manx Gas is one of the oldest gas utilities in the British Isles still trading, and the sole gas supplier on the Isle of Man for nearly two centuries.

Customer service

How to reach Manx Gas in 30 seconds

The lines you actually need on speed-dial. Every other line (Welsh, Relay UK, business switching, bereavement) is on the full contact page.

General enquiries

01624 644444

Mon-Fri 8.30 a.m. - 5 p.m. (pay 24/7)

Gas emergency (24/7)

0808 1624 444

Free, 24/7, smell gas, call & leave

Murdoch House, Douglas

Walk-in reception

Mon-Fri 9 a.m. - 5 p.m., South Quay, IM1 5PA

My Account portal

24/7 self-service: bills, meter reads, payments

Open the full Manx Gas contact directory

Manx Gas (trading as Isle of Man Energy) supplies gas only on the Isle of Man, natural gas through the mains network, plus metered LPG by mini-bulk tank or 47-kg cylinder for off-mains properties. For electricity on the island, supply is provided by the state-owned Manx Utilities, there is no competing electricity retailer.

Save up to £300 per year

Independent comparison

Is Manx Gas the cheapest option for your home?

UK households can save up to £300 per year by switching to a supplier whose tariffs fit their actual gas + electricity usage. Compare against suppliers regulated by Ofgem in under two minutes.

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Common questions

Manx Gas — frequently asked questions

Manx Gas is regulated by Ofgem and operates under a standard domestic-supply licence. Whether it is the right supplier for your household depends on your unit rate, standing charge, customer-service rating and any add-on services (HomeCare, Warm Home Discount eligibility). Always quote your annual kWh consumption when comparing prices — the headline rate alone does not predict your bill.

Switching to Manx Gas takes about five working days under the new Faster Switching service, and your supply is never interrupted. Sign up online with your address, postcode and a recent meter reading. Manx Gas will arrange the transfer with your current supplier, including the final meter reading and the closing bill.

The UK grid is supplied by a mix of gas, nuclear, wind, solar, biomass and imports. Manx Gas declares its fuel mix annually under Ofgem rules — see the fuel-mix section above for the current figures. Some tariffs are sold as 'green' or '100% renewable', which means the supplier matches your annual consumption with renewable electricity certificates (REGOs) rather than physically delivering renewable electrons to your home.

Most UK fixed-term tariffs include an exit fee (typically £25-£75 per fuel) if you switch before the contract ends. You can switch without an exit fee in the last 49 days of your contract. Variable tariffs (including the default tariff capped by the Energy Price Cap) have no exit fees.

You can reach Manx Gas on 01624 644444, Mon-Fri, 8.30 a.m. to 5 p.m. (pay your bill 24/7). For a full breakdown of phone lines (emergency, prepayment, HomeCare, bereavement, Welsh, Relay UK), see the Manx Gas contact page.

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