What event bar service costs — per head, per hour, or open bar

The way a bartender charges fundamentally shapes what you pay and what you get. Understanding the differences between per-head, per-hour, and open bar pricing isn't just about spotting the cheapest quote — it's about recognizing what's hidden in the fine print and making a choice that fits your event.

Per-head pricing: what's built into the price

Per-head rates sound simple: multiply guests by a fixed amount. The appeal is clarity. But that number reflects several assumptions the bartender has bundled together.

First, it usually assumes a certain volume of drinking. A bartender quoting per-head for a two-hour wedding reception is pricing in expectations about how many rounds guests typically order in that span. If your crowd drinks more or less, the quote's accuracy shifts. Second, it wraps in spirit and mixer cost, labour, and ice. A higher per-head rate may mean better-quality spirits or more generous pours; a lower one may signal standard brands or thinner measures. Third, it often locks in a minimum guest count. If you say 120 but 80 show up, you may still pay for 120.

Ask what brands are included. A quote of R80 per head with house spirits is very different from R80 with premium. Clarify whether the minimum is a promise or a penalty — some bartenders will adjust if numbers drop significantly, others won't. Find out if beer and wine are priced the same as spirits, or tiered. And check whether they're supplying or you are: if they bring stock, their per-head rate covers their cost and margin; if you buy and they pour, the rate is labour only.

Per-hour and open bar: the flexibility trap

Per-hour billing isolates the labour cost from the drink cost. A bartender charges for time on the clock, and you either supply your own alcohol or run a tab. This seems to separate concerns, but it leaves room for confusion.

With per-hour rates, the bartender has less incentive to control pour or pace. If they're paid the same whether drinks flow freely or slowly, their cost doesn't change. That can mean generous pours — a selling point — or, from another angle, rapid burn-through of your stock and a higher final bill. Open bar models (where guests drink free and you pay a total at the end) amplify this. You're paying for all drinks consumed, not for the bartender's time, so the actual cost depends entirely on how much alcohol moves. A lively wedding with thirsty guests will cost more than a quieter afternoon event, even if the bartender works identical hours.

Per-hour rates also make staffing levels hard to assess. A bartender might quote an hourly rate that looks competitive but plan to work solo when your guest count needs two. An hour of understaffed service means queues, slow orders, and guests abandoning the bar altogether. Ask explicitly how many staff are included in the quote and whether that's fixed or depends on your numbers.

The invisible cost drivers

No matter which model you choose, several things shift the final price:

• Event duration and timing. A Friday night event may cost more than a Sunday afternoon; late finishes may trigger overtime rates.
• Venue rules. Some venues require specific insurance, a licensed premises manager, or restrict who can pour. These add cost.
• Stock supply. If the bartender brings everything, they've marked up the spirits. If you buy retail and they pour, you save the markup but pay for what's left over.
• Mixology complexity. Craft cocktails, multiple types of beer, wine pairings, or signature drinks pushed through the menu cost more to execute than beer, wine, and simple pours.
• Equipment and bar setup. Mobile bars, rented glassware, fridges, and garnish stations add labour and hardware cost that per-head rates may not itemise.
• Guest behaviour. Tipping customs, the group's drinking pace, and whether anyone needs cutting off affect real-world labour and waste.

None of these is a trick — they're legitimate costs — but some quotes bundle them clearly while others bury them in a vague rate. When you see a cheap per-head price, trace back: does it include setup and breakdown, glassware, ice, and garnish? Or are those added later? Does per-hour assume you supply all stock?

The most reliable quotes break down labour, supplies, and alcohol separately so you can see where money goes. When comparing, line up the assumptions: same brands, same duration, same bar setup. A low price that assumes house spirits and minimal garnish isn't the same as a higher quote for premium brands and fresh fruit. Find a bartender on Strove who will itemise their pricing and explain the trade-offs clearly before you commit.