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.

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.

ProviderWhat the page listsSource
Smith.aiFor 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
NextPhoneFlat monthly plans that start at $199. Its FAQ says you can set up on your own.getnextphone.com/faq
GoodcallThree 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
SamedayLaunch 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.

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.