Nightline / Guide
What does an after-hours answering service cost a small plumbing or HVAC shop?
What an answering service costs a plumbing or HVAC shop, how pricing models work, and what to compare. Public prices checked October 2026.
Answering services price in several different ways, and the headline number rarely tells you what a month will cost your shop. This guide explains how the pricing models work, lists the prices five providers show on their public pages, and gives you a worksheet to run your own numbers. It is a starting point for comparison, not a recommendation.
How answering services charge
Four models cover most of what you will see. Many providers mix two of them.
- Per minute. You pay for the time callers spend on the line. Watch for how minutes are rounded and whether a long call from a chatty customer costs more than you expected.
- Per call. A fixed fee for each answered call. Ask whether sales calls, wrong numbers and hang-ups count.
- Monthly plan with an allowance. A set price that includes some minutes or calls, then a rate for anything over. Check what the overage rate is before you sign.
- Flat monthly price. One price whatever the volume. Easier to budget, but read what is left out of the plan.
Also ask about setup fees, a minimum term, and whether adding a second phone number or a second location changes the price.
Price points on public pages, October 2026
The table below shows prices as listed on their public pricing pages when checked on 14 October 2026. Prices change, and plans change names. Recheck each page before you decide, and do not rely on this page for a current quote. This is not an endorsement of any provider, and the order is not a ranking.
| Provider | What the page lists | Source |
|---|---|---|
| Smith.ai | For its automated receptionist: a free tier, a Pro plan at $150 per month, and an Enterprise plan at $500 per month. The site also lists staffed plans, which are not covered here. | smith.ai/pricing |
| NextPhone | Flat monthly plans that start at $199. Its FAQ says you can set up on your own. | getnextphone.com/faq |
| Goodcall | Three monthly plans: Starter $79, Growth $129, Scale $299. | goodcall.com/pricing |
| myaifrontdesk.com | $99 per month, or $79 per month on annual billing, with 200 minutes included, then $0.25 per minute. | myaifrontdesk.com/pricing |
| Sameday | Launch from $449 per month and Scale from $789 per month. | sameday.ai/pricing |
A listed price does not tell you what it includes. None of these numbers says whether the service sorts emergencies, calls your technician, or tries a backup if the first tech does not answer. Those are separate questions, covered next.
Questions to ask any provider
Take this list to every call or demo, and write down the answers.
1. Do you tell a real emergency from a call that can wait? Who sets the rules, you or me? 2. Can you call my on-call technician? Does the tech have to confirm, or does it just ring? 3. If the first tech does not answer, what happens next? Can I list backups? 4. Can I set a rotation for several techs? 5. What happens to the caller while we try to reach my tech? 6. Is there a contract or minimum term? How do I cancel? 7. What exactly is charged: minutes, calls, overage, setup? 8. Do hang-ups, spam calls and wrong numbers count? 9. Do I keep my current phone number? 10. Who owns the call recordings and transcripts, how long are they kept, and who can listen? 11. What is the plan if your system is down at night?
On recording: consent rules for recording calls differ by US state. Check your state's rules, and ask the provider how it handles the notice to callers.
Do the math for your shop
Fill in the blanks with your own numbers. Your phone bill or call log will show how many calls arrive between closing and opening. Do not use anyone else's averages, including ours.
Night calls per month (from your phone log): ______ of those, real emergencies: ______ of those, calls you missed or sent to voicemail: ______ What one emergency job is worth to your shop: $______ Jobs you think you lose each month because nobody answered: ______ Value of those jobs: ______ x $______ = $______ Provider monthly price: $______ Extra charges (overage, per call, setup spread over 12 months): $______ Total monthly cost: $______ Total monthly cost minus value of jobs saved: $______ (A negative number means the service costs less than the work it brings in. A positive number means it costs more.)
Be honest about the "jobs you lose" line. If you answer every night call yourself today and sleep fine, the number may be small. If your phone rings out to voicemail every night, the number may be large. Only you can fill it in.
Run the worksheet once for each provider on your list, using the pricing and overage terms from that provider.
When a person is better than software
Software is good at asking the same questions the same way, every time, at any hour. A person is better in a few situations.
- The caller is upset, confused, or hard to understand, and needs to be calmed down.
- The job is complicated: a commercial building, a property manager with special rules, a repeat customer with a history.
- You want someone to use judgment about a call that does not fit your rules.
- Your callers are mostly people who would hang up on a machine.
A live service costs more per call, and the operator still needs your rules and your escalation chain. Either way, the groundwork is the same: decide what an emergency is, write the questions, and set who is on call. The guides on handling after-hours calls and the emergency call script cover both.
One more option, still in the works
Nightline is a planned automated line for small plumbing and HVAC shops, with emergency sorting and a calling chain that rings your on-call tech until someone presses 1. Its planned price is $199 to $299 a month, to be set before launch, and it answers no calls today. You can join early access to hear when it is ready.