Avanti Gas business prices and tariffs review

If your business is in the market for a gas-supplier switch or simply wants to review its current costs, our review takes a detailed look at the offering from Avanti Gas (UK) – the tariffs and pricing, features, strengths and points to watch.

Who is Avanti Gas?

Avanti Gas specialises in supplying liquefied petroleum gas (LPG) and other gas solutions to businesses across England, Scotland and Wales.

Key facts:

• Part of the UGI Corporation group.
• Offers bulk LPG, bottled gas, and for some business customers even mains-gas supply.
• Covers a wide range of commercial sectors – agriculture, catering, manufacturing, off-grid sites and more.

Avanti Gas LPG explained

AvantiGas is not a typical mains gas supplier. Instead, it specialises in LPG (liquefied petroleum gas) and energy solutions for businesses that are off-grid or not connected to the national gas network. This means AvantiGas serves sectors such as agriculture, hospitality, manufacturing and rural enterprises — essentially any business that uses LPG for heating, industrial processes, hot water or specialised equipment.

Unlike traditional natural gas suppliers that deliver gas through pipes, AvantiGas delivers LPG in bulk tanker deliveries or bottled gas cylinders, and supports installation and ongoing maintenance of storage tanks and equipment. For businesses that cannot access mains gas or want a tailored LPG solution, AvantiGas fills an important niche in the market.

What Avanti Gas offers today

AvantiGas is best understood today as an off-grid LPG specialist rather than a mainstream mains-gas supplier. That matters because British Gas acquired the customers of the natural gas business of AvantiGas ON in October 2022, and AvantiGas’ cylinder business was acquired by Flogas in October 2025. For most businesses reviewing the supplier now, the main focus should be bulk LPG, tank-based supply and BioLPG options for sites that are not connected to the gas grid. 

For businesses in rural or hard-to-connect locations, that niche can be useful. AvantiGas is positioned around commercial LPG supply, on-site storage, delivery logistics and lower-carbon BioLPG blends, which makes it more relevant to farms, industrial premises, hospitality venues, warehouses, holiday parks and other off-grid sites than to a standard office looking for a conventional mains-gas contract.

Who Avanti Gas is best for

AvantiGas is likely to suit businesses that need a dependable off-grid gas supply and have the space for tank storage. Examples include sites that use gas for space heating, hot water, process heat, catering, forklift fleets or seasonal demand in remote locations. If your premises are outside the mains-gas network, or you are looking to move away from oil while keeping a familiar fuel setup, AvantiGas is a more relevant option than many standard business energy suppliers. 

It is less likely to be the right fit for businesses that mainly want a straightforward mains-gas comparison, a typical urban office contract, or a standard bottle-gas relationship under the AvantiGas brand. In practice, the supplier’s strongest proposition today is bulk LPG and renewable liquid gas for off-grid use.

Fuel types, applications and sectors served

AvantiGas’s core product — LPG — is versatile and used in a wide range of business applications. Highlighting these helps businesses quickly see if their operations align with what AvantiGas offers:

LPG fuel types

• Bulk LPG: Delivered by road tanker into on-site tanks for continuous supply
• Bottled LPG: Portable cylinders for smaller sites or supplementary use
• BioLPG: Renewable liquid gas options with reduced carbon intensity

Common business applications

• Space and process heating (warehouses, workshops, greenhouses)
• Hot water systems (care homes, hotels, guest houses)
• Catering and hospitality equipment
• Forklift and material handling fleets
• Industrial processes (drying, curing, thermal systems)

Key sectors

• Agriculture and horticulture
• Hospitality and leisure
• Construction and events
• Manufacturing and industrial sites
• Remote commercial premises

Service and reliability overview

Because AvantiGas’s model depends on physical delivery and tank management, service and logistics are central to the customer experience.

How LPG pricing works compared with mains gas

LPG pricing and contract structure are different from standard mains natural gas, and this can be confusing without explanation.

Pricing units and components

• LPG is typically priced per litre, not per kilowatt-hour, although you can convert litres to kWh for apples-to-apples comparisons.
• Price includes fuel cost plus delivery charges and may include tank rental or equipment fees.
• Some contracts offer fixed-price elements, while others are more market-linked.

Market influences

LPG prices are influenced by global LPG commodity markets, transport costs and seasonal demand, whereas mains natural gas prices are influenced by wholesale gas network prices and regulatory factors.

Contract types

• Fixed price contracts: Provide cost certainty for the duration of the agreement
• Variable or flexible contracts: May move with market conditions or delivery frequency
• One-off purchases: Especially common for bottled or spot bulk deliveries

Avanti Gas price list

Actual prices will vary depending on region, usage volume, and contract type, but these figures illustrate what a typical business might expect to pay.

Business type	Energy type	Typical usage (kWh/year or litres)	Unit rate (ex. VAT)	Standing charge	Estimated monthly cost	Contract length
Small office or café	Bulk LPG	15,000 litres (~100,000 kWh)	8.5 p/kWh (47 p/litre)	£0.35/day	£700 – £850	12 months fixed
Medium manufacturing site	Bulk LPG	60,000 litres (~400,000 kWh)	7.2 p/kWh (40 p/litre)	£0.45/day	£2,400 – £2,800	24 months fixed
Large warehouse or agricultural site	Bulk LPG	150,000 litres (~1 million kWh)	6.4 p/kWh (36 p/litre)	£0.55/day	£5,000 – £5,800	36 months fixed
Off-grid hospitality or rural business	Bottled LPG	47 kg cylinders (average 500 litres/month)	52 p/litre	N/A	£250 – £300	Rolling supply
Urban business with mains connection	Mains gas	80,000 kWh	7.0 p/kWh	45 p/day	£500 – £550	12 months fixed
Large multi-site group	Mains gas (multi-meter)	500,000 kWh	6.2 p/kWh	£1.00/day	£2,700 – £3,000	24–36 months fixed

Notes:

• Prices exclude VAT (20%) and Climate Change Levy (CCL).
• Delivery or tank-rental fees may apply for bulk LPG.
• BioLPG options typically cost 5–10% more than standard LPG.
• Deemed or variable contracts can be 15–25% higher than fixed-term rates.

Costs to ask about before you sign

When comparing AvantiGas quotes, do not look only at the pence-per-litre figure. LPG supply costs can include the fuel itself, tank rental, delivery arrangements, installation work, contract length and any site-specific requirements. The practical value of a quote depends on the total annual cost, not just the headline unit rate. 

Before signing, ask for a written breakdown covering:

• fuel price and whether it is fixed or variable
• tank rental or equipment charges
• installation or changeover costs
• delivery arrangements and minimum order expectations
• contract length and renewal terms
• any exit charges or non-standard fees
• VAT and any other applicable charges

That level of detail makes it much easier to compare AvantiGas fairly against other LPG options and helps avoid a situation where a cheap-looking rate ends up costing more over the full contract term.

Tariff types and how pricing works

Here’s a breakdown of the types of contracts and tariff models offered by AvantiGas, and what to keep in mind.

Fixed-term contracts

These are contracts where the unit cost (pence per kWh or per litre/tonne depending on fuel type) and standing charges are locked for a given period (commonly 12 months up to three years or more).

Variable rate contracts

Under these you pay a unit rate which tracks an industry index or wholesale cost, meaning your cost moves up or down depending on the market.

Deemed or out-of-contract (tariff) rates

If your fixed contract ends and you haven’t signed a new one, your supply may roll into a “tariff” or “deemed” rate. These tend to be less favourable in terms of unit cost.

Important note for businesses:

It is often worth proactively securing a new contract before the fixed term ends, rather than defaulting into a higher-cost deemed arrangement.

What determines the price?

For Avanti Gas’s LPG business supply the price is influenced by many factors: international market prices, exchange rates, transport/distribution costs, taxes and duties and the supplier’s margin.

It’s worth noting for LPG that some support schemes or price caps applicable to mains gas may not apply.

Features of Avanti Gas’s business offering

Beyond tariff structure, here are features that matter when assessing the supplier.

Pricing trends and value for businesses

Although exact unit rates will vary by site size, usage profile, contract term and market conditions, here are some observations.

• Business utilities commentators list Avanti Gas as “competitive” in the LPG and off-grid sector.
• However, the pricing waypoint for the main mains-gas division appears to have been transferred: AvantiGas mains gas business supply is now being transferred to British Gas (for customers of Avanti Gas ON) – meaning new contract negotiation may now go through British Gas.
• As with many energy providers, businesses should avoid simply letting contracts roll into higher default rates.

Top tips for businesses considering AvantiGas:

• Request a detailed quote for your usage band (bulk or bottle), including all charges (unit, standing, delivery, tank rental if applicable).
• Consider contract length: if you expect usage to grow (or shrink) then ensure the contract allows for that flexibility.
• Compare fixed vs variable: if you want budget certainty pick fixed; if you expect market rates to drop and your usage is flexible then consider variable.
• Ask about any installation, conversion or tank rental charges (especially for off-grid).
• Check the exit terms: are there penalties or charges if you wish to leave?
• Use the online portal or AMR where offered, to gain visibility of consumption and spotting cost-drift.
• If sustainability is on your agenda, the BioLPG option is a valuable differentiator.
• If you already have mains-gas supply with AvantiGas, check whether your contract is now being managed by British Gas and what that means for you.

Delivery and account management

Because LPG is physically delivered to your site, day-to-day service matters as much as price. AvantiGas operates both forecasted and manual delivery approaches. If you are on a forecasted service, the supplier says it uses intelligent alerts and usage profiling to predict when you are due a delivery, with stock dates visible in the online account area. If you are on a manual service, you need to monitor your tank and place orders yourself.

That distinction matters operationally. Manual customers are told to place an order when the gauge reaches 25%, and AvantiGas says manual deliveries are generally made within 10 to 15 working days. For a business with seasonal peaks or critical gas usage, that makes stock monitoring an important part of risk management.

AvantiGas also provides online account tools for payments, gauge updates and meter readings, with customer service support available by phone if needed. For businesses that want better visibility over usage, invoice management and delivery timing, that digital access is a practical plus.

LPG tank safety checklist

If your business uses bulk LPG, the condition and location of the tank are a core part of the decision. AvantiGas advises customers to keep access routes clear for delivery vehicles, keep the tank area free from vegetation and obstacles, and make sure the surrounding space remains safe and easy to reach.

Its guidance also says the tank should be at least 3 metres away from unsealed drains, gullies or decking, and that buildings, sheds, greenhouses and other outbuildings should also be at least 3 metres away. Businesses should not build over the pipework to and from the tank, and the Emergency Control Valve should remain accessible at all times.

For underground tanks, AvantiGas says the lid should not be surrounded by concrete, covered, altered or damaged, and should not sit within 3 metres of decking. Water or sediment should not be present in the tank lid area. These are useful checks to carry out before winter and before any major site works.

BioLPG and lower-carbon options

One of the more distinctive parts of the AvantiGas offer is BioLPG. The supplier says businesses can choose a BioLPG blend under a mass-balance model, with certification available under the ISCC scheme. It also says BioLPG can replace or be blended with conventional LPG without requiring new infrastructure or changes to the existing installation.

That matters for businesses with carbon-reduction targets, because it provides a way to cut emissions without replacing boilers, tanks or pipework. AvantiGas also cites Liquid Gas UK’s view that bioLPG can deliver emissions reductions of up to 90%, making it one of the stronger sustainability angles on the page for businesses that need off-grid heat but want a more credible decarbonisation path.

Support and emergencies

For ongoing account support, AvantiGas directs customers to its online account tools and customer service team. It also gives a dedicated emergency number for LPG incidents. If you can smell gas, or there is an outdoor gas leak or major fire, AvantiGas says customers should call 0808 178 2009, and in the case of fire call 999 and make clear that LPG is involved.

For general account help, payments and readings, AvantiGas points customers to 0808 208 0000 and its online account area. Complaints are handled by its Quality and Resolution Team, and the company says complaints are acknowledged within 1 working day, Monday to Friday excluding bank holidays.

Strengths and weaknesses – how does AvantiGas stack up?

Here’s a summary of the pros and cons, from a UK-business perspective.

How switching to Avanti Gas works

One useful point in AvantiGas’ favour is that the switching process is designed to be relatively simple for existing LPG users. The supplier says switching “won’t cost a penny”, that it will liaise with your existing supplier, and that in some cases you can even keep your current tank. That can reduce disruption for businesses that want to change supplier without replacing their entire on-site setup. 

For businesses that are new to LPG, the more important question is usually not just how to switch, but how the site will be set up. A proper review should cover where the tank will go, how easy the site is to access for deliveries, what your typical usage pattern looks like, and whether a bulk LPG or BioLPG arrangement is the better long-term fit. 

Final verdict – is Avanti Gas right for your business?

If your business:

• uses LPG (bulk or bottled), especially in an off-grid or remote location; or
• is looking for a flexible fuel solution with possible future conversion from oil/solid fuel; or
• has sustainability ambitions and wants a BioLPG route

… then Avanti Gas represents a credible, well-established supplier with a clear offering, transparent tariff options and some value-add features.

However, if your business is a typical mains-gas customer in a grid-connected site and you are purely focused on the lowest possible unit cost in a highly competitive market, then you may want to benchmark several suppliers (including mainstream ones) side-by-side. In that scenario, check how the AvantiGas (or its transferred British Gas) contract stacks up on price, service and flexibility.

In short: one size does not fit all. Use the tariff structure and service features as a checklist when comparing, and make sure you’re comparing the right category of supply (LPG vs mains gas) and contract type (fixed vs variable) for your business.

FAQ