Should you hire a mobile bar or use the venue's own bar? The answer depends on your guest count, budget, menu preferences, and venue terms. This guide breaks down the real differences — cost per head, flexibility, licensing, and what you actually get — so you can make the right call for your event.
A mobile bar is a portable bar unit brought to any location with licensed bartenders, glassware, ice, and a fully customisable drinks menu. A venue bar is a fixed installation at a function room, hotel, or pub — tied to the premises licence with a set drinks list and venue pricing. Mobile bars start from £350 dry hire or £750 all-inclusive for a four-hour event across London. The Sesh Bars operate across all 32 London boroughs with travel included inside the M25, plus Berkshire.
The table below compares a typical London venue bar against a mobile bar hire package. Venue bar pricing is based on average London function room rates. Mobile bar pricing reflects The Sesh Bars' current packages.
| Feature | Mobile Bar | Venue Bar |
|---|---|---|
| Location | Any venue or outdoor space | Fixed premises only |
| Menu control | Fully customisable | Venue's drinks list |
| Cost model | Package or per-head | Per drink (retail) |
| Cocktail price | Included in package | £8-12 each |
| Pint price | Included in package | £5-7 each |
| Branding | Custom bar wrap available | Venue branding |
| Licensing | We hold the licence | Venue's licence |
| Minimum spend | From £350 | Often £1,000+ |
| Staff | Dedicated bartenders | Shared venue staff |
| Setup/strike | We handle everything | Already in place |
Venue bars charge per drink at retail prices. A guest having two cocktails and two pints at a London venue bar spends £26-38. An all-inclusive mobile bar package covers unlimited drinks from a set menu at a fixed per-head rate — typically working out at £15-25 per guest for a four-hour event depending on guest count.
The crossover point is around 40 guests. Below 40, a venue bar's per-drink pricing may be competitive. Above 40, a mobile bar package almost always saves money — and gives you menu control, dedicated staff, and the flexibility to set up anywhere. For a dry hire option where you supply your own drinks, the bar hire itself starts from just £350.
Venue estimates based on 4 drinks per guest at average London function room pricing. Mobile bar pricing from The Sesh Bars' current packages.
Mobile bar hire is the better choice when you want full control over drinks, pricing, and presentation. It is essential for venues without a bar — marquees, gardens, warehouses, rooftops, and private land. It is also the smarter option at venues with a bar when their pricing is steep or their drinks list does not match your event.
No fixed bar exists — a mobile bar is the only option
Signature cocktails, specific wine, branded presentation
Serve the sponsor's brands from a branded bar
Package pricing beats per-drink venue rates at scale
For wedding bar hire, mobile bars let you serve signature cocktails that match your theme — something most venue bars cannot offer. Corporate events benefit from branded bar wraps and sponsor-specific drinks menus. Garden parties and festival-style events need a bar that can go wherever the party is.
A venue bar is the right choice for smaller events (under 30-40 guests) where per-drink pricing stays competitive, when the venue's drinks menu matches what you want, or when the venue contract prohibits external bars. Some venues offer competitive drinks packages — if the per-head rate is genuinely lower than a mobile bar quote, the venue bar wins on cost.
The downside is lack of control. You are locked into the venue's drinks selection, their pricing, and their staff. If the venue bar is understaffed on a busy night, your guests wait. With a mobile bar, your bartenders are dedicated exclusively to your event.
Ask three questions: Does my venue allow external bars? How many guests am I expecting? Do I want to control the drinks menu? If the venue allows it, you have 40+ guests, and you want menu control — a mobile bar is almost certainly the better option. If your venue has a competitive bar package and you are happy with their menu, use it.
Not sure which option suits your event? Get a free quote from The Sesh Bars and we will model both options for your guest count, venue, and preferred drinks. We cover all London boroughs and Berkshire with a full range of mobile bar packages — from dry hire at £350 to all-inclusive packages that cover every drink on the menu.
Share your event details and receive a mobile bar hire quote within 24 hours. No obligation.