Missed call text back for contractors: setup, consent and scripts

Missed call text back is the cheapest fix in a contractor's phone setup. When a call goes unanswered or to voicemail, the caller gets a text within a minute: you saw the call, reply here, or book online. Plenty of people who reach voicemail at a service company never leave a message; they call the next name on the list. A text gives them a reason to stop and answer you instead. This guide covers the setup, the consent and carrier rules, three scripts that fit real trade situations, and a way to measure how many of those callers you actually win back.

Why the text matters more than the voicemail greeting

A voicemail greeting asks the caller to do the work: leave a message, wait, hope. A text flips it. The caller now has a thread with your business in their messages app, and replying takes five seconds. For trades, where many calls are urgent (no cooling, a leak, a breaker that won't reset), that thread is often the difference between a booked job and a lost one.

The text doesn't replace answering the phone. It covers the gaps every shop has: a CSR on another line, lunch, a tech calling the office from a job, the ten minutes before the office opens. Our text message marketing hub puts this text in context with the other job-triggered texts a contractor sends, and the speed to lead guide covers how fast the follow-up reply should come.

Consent and carrier rules, applied to this one text

Missed-call text-back sits in an unusual spot in the rules, so it's worth being precise.

What CTIA says. CTIA's Messaging Principles describe conversational messaging as a back-and-forth where the consumer texts first and the business responds with a single message; in that case no additional permission is expected. Informational messages, such as alerts, need express consent. Promotional messages need express written consent, and adding a call to action like a coupon code can move a message into the promotional category.¹ A missed call isn't a text, so the reply doesn't fit the conversational definition perfectly. The closest safe reading: the customer started the contact, you reply once with relevant information, and you add nothing promotional.

What the FCC rules say. The FCC's rules require prior express consent for calls (including texts) made with an automatic telephone dialing system to a mobile number, other than for emergencies, and prior express written consent when the message includes an advertisement or is telemarketing.² How those rules apply to an automated reply to an inbound call is a legal question for your counsel, not this page. What's clear is that an offer makes it worse: keep the text informational.

What the carriers require. Business texts from a 10-digit local number are A2P 10DLC traffic and must be registered as a brand and a campaign.³ When you register, include the missed-call reply as one of your sample messages, written exactly as you'll send it, and describe the trigger (a call to your business number that wasn't answered) in the message flow.⁴ Our A2P 10DLC registration guide walks through each field.

Setting it up

1. 1

   Register your number for business texting

   Brand and campaign, approved, before any automatic text goes out. Include the missed-call reply in your sample messages.

2. 2

   Decide which calls get a text

   Missed and voicemail calls from mobile numbers. Skip numbers that already got a text in the last 12 to 24 hours and anyone who replied STOP.

3. 3

   Write the reply

   Business name, an apology, an invitation to reply, and optionally a booking link. No offers. Under 160 characters if you can.

4. 4

   Set quiet hours

   Texts that would land overnight wait until morning in the caller's time zone, unless someone is on duty to answer.

5. 5

   Assign the replies

   A named person owns replies during business hours, with a target of a few minutes. Replies outside hours go to the top of the morning list.

6. 6

   Measure recovery weekly

   Missed callers texted, how many replied, how many booked within 48 hours. The metrics are below.

In TradesWork, missed-call text-back is part of Phones: a missed or voicemail call gets a text right away, at most once per number every 12 hours, never to someone who replied STOP, and held during quiet hours. The default wording includes your company name and, when online booking is on, your booking link; you can edit it. The call also lands under Needs follow-up on the call log so somebody owns the callback.

Three scripts for real trade situations

Write each one in your own voice, keep the company name first so the customer knows who's texting, and register the exact wording as a sample message.

Avoid two things in every script: promising a callback time you can't hit, and sending the booking link when the board is full for the next week. If your online booking only offers windows your techs can cover, the link is safe to include; if it shows a generic form, leave it out.

How to measure what the text wins back

This is the part most shops skip. The setting gets switched on, and nobody checks whether it books anything. Three numbers from your call log and job records answer the question.

A worked example

Take an example 5-tech plumbing shop. In one week it gets 260 inbound calls during business hours, 34 of them missed or sent to voicemail (a missed-call rate of about 13%). 29 came from mobile numbers and got a text. 17 replied, and 12 booked within 48 hours.

The recovery rate is the number to track. To put a value on it, you'd need to know how many of those 12 would have called back anyway, and that's hard to measure directly. A practical test: switch the text off for two comparable weeks, measure the same rate, and compare. If the shop recovers 41% with the text and, say, 20% without it in the test weeks, the text is worth about 21 points of missed callers, every week. Run the comparison in a quiet stretch, not peak season, so you don't lose real jobs testing it. Our Field Notes post on what after-hours calls are worth has a model for pricing each missed call once you know your rates.

If each phone line carries a campaign, you can split the recovery rate by source as well: the missed callers from your Google Business Profile line versus your truck-wrap line versus your mailer. A low recovery rate on one source usually means those callers had a more urgent problem and found someone else faster, which is a staffing question, not a texting one. The glossary entry on call-to-book rate explains the companion metric for answered calls.

When text-back isn't enough

The text recovers callers who are willing to wait a few minutes. It doesn't help with:

• True emergencies at night. Someone with water on the floor at 2 a.m. needs a person or an answering service, not a text at 7:30 a.m.
• A high missed-call rate during business hours. Our rule of thumb: above about one in five, the text is covering for a staffing gap. Fix the coverage first.
• Landline callers. They won't get the text. Your callback list has to catch them.

For the coverage side, compare an answering service, an AI receptionist and in-house staff in our after-hours coverage guide. If an agency or TradesForce runs your ads, the same recovery rate tells them whether the calls they paid for are reaching a person, which is a more useful conversation than call counts alone.