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Carolyn Moir-Grant
With over 30 years of experience at Allstaff, Carolyn has been a guiding force in shaping the agency’s reputation as a trusted recruitment partner.
Appointing a warehouse staffing agency without asking the right questions upfront is one of the most common, and most avoidable mistakes employers make. The agencies that are genuinely worth appointing will welcome scrutiny on candidate pool depth, fill rates, no-show handling, shift pattern experience, compliance, and communication. This article sets out the ten questions to ask before you sign anything, and what to listen for in the answers you get back.
Most hirers don’t set out to appoint the wrong agency – they inherit a relationship, or make a decision under time pressure, without ever really testing it. The consequences show up later: missing workers on a Monday morning, unfilled shifts nobody flagged in advance, and no clear accountability when it goes wrong. In a warehouse environment, that isn’t an abstract inconvenience – it’s a line not running, an order not going out, a shift supervisor firefighting instead of managing.
We think of the appointment stage as the best leverage point in the entire relationship. Before a contract is signed, an agency has every incentive to answer honestly. After it’s signed, some of that incentive disappears. Asking structured, specific questions now – rather than general reassurance-seeking ones – shifts the dynamic from reactive to strategic, and it’s the single best opportunity to tell a genuinely specialist warehouse agency apart from a generalist one that says the right things.
There’s a real difference between an agency that can fill warehouse roles and one that understands warehouse operations – shift patterns, the physical demands of the work, forklift licensing categories, safety awareness on a working floor. That difference shows up in time-to-fill, in how long people actually stay, and in how much compliance risk sits with you versus the agency.
When we take on a new warehouse client, we don’t just take a job spec over the phone. We ask about the reason for the role, get a brief on what the business does, understand the rates and hours involved, and wherever possible, arrange a Teams call or a site visit to see the roles in practice. That matters more than it sounds: seeing the site helps us judge things like public transport links, which shapes whether the candidates we put forward can actually get there reliably. That’s the kind of groundwork that should be happening before an agency ever puts a candidate in front of you – and it’s worth asking directly whether it happens with yours.
Pool size on its own tells you very little – what matters is whether it’s live and segmented, or a dormant database of old CVs. Ask how candidates are grouped by role type, skill level, shift availability, and proximity to your site. A strong answer includes real numbers and evidence of regular re-engagement; an evasive one leans on phrases like “thousands of candidates” with nothing underneath them. We’d add one thing worth probing directly: ask what the agency actually does at the start of a new brief to understand your site and your roles in enough depth to match well – a site visit, a proper scoping conversation rather than working purely from a job title.
Ask for these broken down by role type, shift pattern, and notice period – not as one blended average, which can hide poor performance in the areas that matter most to you. A credible agency will share documented figures and explain how they’re tracked; an evasive one offers anecdotal claims of “high fill rates” with no evidence behind them.
This is one of the most overlooked areas to probe before appointment. Ask specifically what happens when a placed worker doesn’t turn up – response time commitments, replacement availability, and whether there’s a dedicated out-of-hours contact for shift-day issues. A strong answer describes a defined process with clear timescales; an evasive one simply reassures you it “rarely happens.”
This is distinct from no-show handling and deserves its own question. Ask how attendance patterns are monitored over time, and what happens when lateness or unreliability starts to repeat. A good agency will describe proactive monitoring and regular reporting back to you; a weaker one puts the burden entirely on you to flag problems as they arise.
Ask directly about experience with 4-on-4-off, continental shifts, rotating days and nights, or compressed weeks and how candidates are screened for genuine suitability rather than simply availability. Mismatched shift expectations are a leading cause of early attrition. Listen for named examples and evidence of screening; be wary of a blanket “we can cover any shift” with nothing behind it.
This should go well beyond a CV check and right-to-work verification. Ask specifically how forklift licences are verified – counterbalance, reach, VNA – and how manual handling awareness and safety knowledge are assessed before someone sets foot on your site. A strong answer describes a structured, documented process; a weak one offers only a general assurance of “thorough vetting.”
Ask for a full breakdown employer’s NI, holiday pay, pension contributions, PPE, any management fee, rather than a single headline figure. Ask how rates flex across shift types and volume, and what the payment terms and invoicing cadence look like. Transparency here upfront prevents disputes later.
Ask not just for names, but for the size, sector, and operational profile of those clients, and what specific difference the agency made to fill rates, attendance, or responsiveness. One thing we’d flag from our own experience: the strongest client relationships tend to start with the employer asking sharper questions upfront, not just about staffing numbers but about pay positioning and shift structure – what will actually help attract and keep the right people. A client who asks that kind of question tends to end up with a partnership that works better for both sides, because it starts a genuinely two-way conversation rather than a transactional order.
This is a non-negotiable baseline check, and it’s also the question most employers forget to ask – which is worth pausing on. When we’re asked what employers should be checking but rarely do, the answer is consistent: credentials, memberships, and how long the team has actually been in place. Ask about REC membership, GLAA licensing where relevant, and awareness of Stronger Together. Ask how AWR and right-to-work compliance is maintained day-to-day, not just what’s printed on a certificate – and ask who owns compliance internally. A strong answer names a compliance lead and describes an active process; a weak one offers only a vague claim of being “fully compliant.”
Ask who you’ll actually be dealing with, what their experience is, and whether they understand warehouse operations specifically – not just recruitment in general. Ask about response time commitments and how performance will be reported back to you, and how often. A strong answer names an account manager and a reporting cadence; a weak one promises “great communication” with nothing concrete attached to it.
Across all ten questions, the pattern repeats. Strong answers are specific, evidenced, and offered without being pressed. Evasive answers lean on reassurance, brand reputation, or vague claims that can’t be checked. Taken together, not in isolation, the answers you get should build a complete, honest picture of how an agency will actually perform once appointed. We’d rather be asked all ten of these than none of them. It’s a better conversation, and it’s the one that tells you whether an agency genuinely understands warehouse recruitment or is simply willing to say so.
We’d encourage any employer shortlisting a warehouse staffing agency to ask us every one of these questions we’re used to being asked, and we’d rather earn the appointment on the strength of our answers than on reputation alone. If you’re planning ahead for a new shift, a peak period, or simply reviewing whether your current agency is holding up its end, [get in touch with our Warehouse & Logistics team] to talk it through.
How many questions should I ask a recruitment agency before appointing them for warehouse staffing? There’s no fixed number, but the ten covered here — candidate pool, fill rate, no-show handling, attendance management, shift pattern experience, screening and compliance, charge rate structure, references, accreditations, and communication — give a genuinely complete picture.
What’s the single most important question to ask? There isn’t one — the value comes from asking all of them together. But accreditations and memberships are the question employers most often skip, and it’s usually the most revealing.
Should I be suspicious if an agency won’t share fill rate data? Reluctance to share documented performance figures is worth noting. It doesn’t automatically mean the agency is poor, but it’s a fair reason to ask follow-up questions before committing.
What should I do if an agency gives vague answers to most of these questions? Treat it as useful information in itself. The pattern of an answer — specific and evidenced versus vague and reassurance-based — tends to predict how the relationship will actually run.