Figure out what missed calls are costing you
Open your phone's recent calls and count last week's missed calls from numbers you don't recognize. Multiply that by your average job value. That's the leak this guide plugs, and it's usually bigger than you'd guess, because a missed call leaves no trace: no voicemail, no lead, nothing to follow up on.
Someone in Waukesha has water where water shouldn't be. They search, tap the first plumber, and it rings out because you're under a sink somewhere. Most don't leave a voicemail. They hit back, call the next name on the list, and the job is gone in under a minute.
A text-back doesn't answer the call. It buys you time. Within a minute, the caller gets a text: got your call, on a job, text me what you need. Most callers just want proof a human saw them, and now the conversation is in writing where you can answer between jobs.
Do the zero-cost version on your phone today
If business calls ring to your cell, your phone has a piece of this built in, and setup takes five minutes.
On iPhone: Settings > Apps > Phone > Respond with Text (Settings > Phone on older iOS versions). Replace one of the three generic defaults with your message from the next section. When a call you can't take comes in, tap Message on the incoming call screen and pick it. On Android, the same feature is in the Phone by Google app: three-dot menu at top right > Settings > Quick responses.
The catch: those only fire when you actively decline the call. A phone that rings out in your pocket sends nothing. Cover it with a text shortcut. On iPhone: Settings > General > Keyboard > Text Replacement, tap the plus, and make a shortcut like "mcb" that expands to your full message. Climb out of the crawl space to two missed calls, type three letters, hit send. Same idea on Android through Gboard's personal dictionary.
Costs nothing, needs no signup, works today. The automated version below is the upgrade, not the starting line.
Write the text before you pick a tool
The message matters more than the software. Four rules: say who you are (business and first name), say why you missed the call, tell them what to do next, and stay under 160 characters so it arrives as one message. Skip emoji, they drop that limit to 70 characters.
A general version, 134 characters: "This is Mike at Badger Plumbing. Sorry I missed you, I'm on a job. Text me what's going on and I'll get back to you before end of day."
An emergency-trade version, 141 characters: "Badger Plumbing here, sorry we missed your call. If water is running right now, reply EMERGENCY. Otherwise text your address and the problem."
An after-hours version, 129 characters: "You reached Badger Plumbing after hours. Text your address and the problem, and we'll get back to you first thing in the morning."
Two warnings. Only promise a response time you'll actually hit; a broken "within the hour" is worse than nothing. And keep marketing out of it. This is a reply to someone who called about a problem, not an ad slot, and bolting a promo on puts you in different legal territory.
Automate it with a real tool
The automated version texts every missed call within a minute, including the ones that ring out while you're on a ladder. The cheapest solid option for a small shop is OpenPhone at $15 per user per month. Sign up at openphone.com, then port your business number in. Porting keeps your number, your old service works until the switch flips, and it typically takes a few days for a cell number, longer for a landline.
Once the number is live, go to Settings > Phone numbers, pick your number, and open Auto-replies. Turn on the reply for missed calls, paste in your message, and set a separate one for callers who left a voicemail (say you're listening to it). OpenPhone also has a shared inbox, so the office and a tech can answer the same thread.
Podium and Hatch bundle text-back with review requests and website chat, at a few hundred a month, aimed at shops with office staff. If your business number is a landline you don't want to move, services like Podium and Text Request can text-enable the number you already have: calls keep working as before, and texts show up in their app. And before buying anything, check the field software you already pay for; Housecall Pro and Jobber keep adding texting features and you may already own this.
Register for business texting or your texts won't arrive
US carriers require texts sent through business platforms to come from a registered sender. The system is called A2P 10DLC, and every tool walks you through it at signup: legal business name, EIN, address, and what you'll text. Carriers filter messages from unregistered numbers, which means your platform can show a text as sent while the caller's phone never shows it at all.
Approval takes days to a few weeks and you can't speed it up, so submit registration first and run the manual phone version while you wait. Sole proprietor without an EIN? Platforms have a sole-prop path with lower sending limits, plenty for text-back.
Registration is the slowest step in this guide, so it goes first. Submit it today and text back manually while it clears.
Answer the replies or the whole thing backfires
The auto-text is a promise. When the caller texts back "water heater leaking, 414 Oak St" and hears nothing for four hours, you've failed them twice, and the second one's in writing. Before turning the automation on, decide who watches the inbox: whoever answers the phone now. Put the app on their phone with notifications on.
Match the message to your real hours. Most tools can send a different auto-reply after hours, so run the after-hours version at night instead of promising a callback nobody's awake to make.
Then check whether it's paying. At the end of the month, count jobs that started as a missed call plus a text thread; your platform's message history makes that a ten-minute skim. Weigh those jobs against the tool's monthly cost. If nobody replies, the message is the problem, so rewrite it and check again.