Start with the pricing model
This is where most of the surprises hide. Answering services bill per minute, per call, or flat monthly. Per-minute and per-call models look cheap on a slow month and punish you exactly when you're busiest — the more your phone rings, the bigger the bill.
Don't compare headline rates. Ask each provider for the all-in monthly cost at your real call volume, and make them show their work.
Does it move the customer forward, or just take a message?
A message you have to call back is a lead you might lose — especially after hours. The services worth paying for book the appointment or the job directly into your calendar while the customer is still on the line. Message-taking is table stakes; booking is the difference.
The best answering service turns a call into a booked job — not a note you have to chase later.
The checklist
Run every provider — human or AI — through the same list:
- Pricing model: flat monthly, or a metered rate that spikes when you're busy?
- Does it book to your calendar, or only take messages?
- After-hours, weekend, and holiday coverage?
- Does it text back the calls it can't catch?
- Who (or what) actually answers — and is it trained on your business?
- How fast does it go live, and do you keep your existing number?
- Month-to-month, or a locked contract?
Questions to ask — and red flags
Four questions cut through a sales pitch fast: What's my all-in cost at about X calls a month? Can it book directly into my calendar? What happens to a call it can't handle? Can I cancel month-to-month?
And the red flags that should give you pause:
- Vague pricing or "contact us for a quote" instead of a real number.
- Long contracts with early-termination penalties.
- Can only take messages, not book.
- Can't clearly tell you who or what answers your callers.