You can't answer the phone from inside a crawlspace. Missed-call text-back is the simplest way to keep those callers from moving on to the next shop. Here's what it is, what it isn't, and how to set it up properly.
What it is
Missed-call text-back does one thing. When someone calls your business number and nobody picks up, they get a text from that same number within seconds. Something like:
Example: "Hi, this is [Your Shop Name]. Sorry we missed your call, we're on a job. What can we help with? Reply here and we'll get right back to you."
The caller can reply with what's wrong ("water heater leaking in garage"), and you or your office get an alert with their number and message. You call back when your hands are free, already knowing what the job is.
Why it works
The caller has already chosen you. A quick text tells them a real business got their call and will follow up. That's often enough to stop them from dialing the next number.
It matters because so many calls go unanswered. Invoca's 2026 Home Services Lead Conversion Benchmarks Report found that only 52% of calls to home-service businesses reached a person. For HVAC companies it was 34%. The same report recommends using SMS to engage callers when no one can pick up.
A text also suits people who would rather type than talk, and it gives you a written record of the problem before you call back.
What it isn't
- Not a chatbot that books jobs on its own. The basic version just starts the conversation. You can add more later, but start simple.
- Not marketing. The first text should be a plain reply to someone who just called you. No coupons, no links to specials.
- Not a replacement for answering the phone. It's a safety net for the calls you can't take.
How to set it up, step by step
1. Check what your phone system can do
Start with what you already have. Many business phone services, VoIP apps and field-service platforms either include a missed-call text feature or can connect to one. Check your provider's settings or ask their support: "Can my business number send an automatic text when a call is missed?"
If your business line is a personal cell phone, you'll probably need a separate business number that can send texts. Don't use a personal phone for this.
2. Make sure the text comes from the number they called
The reply should come from the same number the customer dialed, or at least clearly name your shop. A text from a random number looks like spam, and customers ignore it.
3. Register for business texting (A2P 10DLC)
This step is the one most often skipped, and skipping it is why texts quietly fail.
U.S. carriers require businesses that send texts through software from a regular 10-digit number to register under a standard called A2P 10DLC. Twilio's A2P 10DLC documentation explains that it exists to make sure business texting is "verified and consensual." Registration has two parts:
- Brand: who is sending the messages (your business details, usually including your EIN).
- Campaign: what you're sending, how people opt in and out, and sample messages.
According to Twilio, unregistered senders face more message filtering and extra carrier fees. Approval can take days to weeks, so start early. If your phone provider handles texting for you, ask whether they register for you or whether you do it yourself.
4. Write a short, plain message
Good missed-call texts are:
- Short: two or three sentences.
- Named: they say which shop is texting.
- Honest: "we're on a job" is better than "your call is important to us."
- Easy to answer: they end with a question.
- Opt-out ready: many setups add "Reply STOP to opt out." Keep it.
Write a separate after-hours version so it doesn't promise a callback "in a few minutes" at 11 p.m.
5. Set up alerts for the right person
The text is only half of it. Someone has to see the reply. Send alerts to whoever will actually call back, whether that's the owner, the office or the on-call tech, by text, email or both. Agree on a target, such as calling back within 30 minutes during business hours.
6. Decide which calls should get a text
Usually you'll want to skip:
- Calls from your own techs and office lines.
- Known suppliers and vendors.
- Calls under a few seconds, which are often misdials or spam.
7. Test it from three phones
Call your business line from an iPhone, an Android and a landline (or a number that can't receive texts), and let each call ring out. Check that the text arrives quickly, reads correctly, and that replies reach the right person.
8. Track it for 30 days
Keep a simple count: missed calls, texts sent, replies, and jobs booked from those replies. After a month you'll know whether it's paying for itself and which wording works.
A note on the rules
The FCC's rules on robocalls and robotexts require consent for automated texts to cell phones, and the type of consent depends on the message. In the FCC's words, "Commercial texts require written consent; for informational texts, your consent may be oral."
A plain reply to someone who just called you, about their own call, is generally treated as informational. A promotional blast is not. Keep the text-back message about their call and nothing else, honor STOP requests, and don't add those numbers to a marketing list without proper consent. This isn't legal advice. If you're unsure, ask your phone provider or an attorney.
Common mistakes
- Skipping registration. Texts get filtered and you never find out.
- Robotic wording. "Your inquiry has been received" doesn't sound like a trade shop. Write how you talk.
- No one owns the replies. A text-back with nobody watching the replies is worse than nothing.
- Same message 24/7. Night callers need a different message. See our post on after-hours calls.
- Never checking results. Read the replies once a month and adjust the wording.
Is it worth it?
Do the math first. Our post on what missed calls cost walks through a simple estimate. If even one or two extra jobs a month come from callers who would have moved on, a text-back usually pays for itself.
Not sure where to start? Our $250 Missed-Call Checkup looks at your current phone setup and software, then gives you a one-page plan, including whether a text-back makes sense for your shop. If we set it up for you within 30 days, the $250 comes off. Email hello@getaifortradepros.com.