Is It Legal to Text Your Customers? What Service Businesses Need to Know

You send a "running 15 minutes late, be there soon" text to a customer and hesitate before hitting send. Is that even allowed? You've heard other contractors talk about texting fines. You've also heard texting gets more replies than email, more replies than voicemail, more replies than anything else you've tried. So you send it anyway and hope for the best.

That hesitation is common, and it's usually based on half the story. Texting customers is legal and it works. The rules aren't complicated once you know them, and most service businesses are already following them without realizing it.

The short version: consent is the whole game

The law governing business texting is the Telephone Consumer Protection Act, or TCPA. Strip away the legal language and it comes down to one idea: don't text people who haven't given you a reason to have their number.

If a customer calls your business, fills out a form on your website, or texts you first, they've given you their number in the context of wanting to hear back from you. Responding to that by text, including automated responses, falls within what they'd reasonably expect. That covers the vast majority of texts a plumber, electrician, or landscaper sends: appointment confirmations, "on my way" updates, quote follow-ups, review requests after a completed job.

What gets businesses in trouble is different. It's buying a list of phone numbers and blasting a promotion to people who've never heard of you. It's adding every past customer to a recurring marketing campaign without ever asking if they want it. It's a texting tool that doesn't track who opted in, so you can't prove consent if anyone ever asks.

What a compliant text actually looks like

You don't need a legal pad full of disclaimers on every message. You need three things in place.

First, a clear source of consent: the customer called you, texted you, or filled out a form. Second, a way to opt out, usually a "Reply STOP to unsubscribe" line on your first message or built into your texting platform so it happens automatically. Third, identification, so the person receiving the text knows it's from your business and not a random number.

Picture a customer who calls about a water heater on a Saturday. You miss the call because you're under someone else's sink. Your system texts back within two minutes: "Hey, this is Mustardseed Plumbing, sorry we missed your call. What's going on with the water heater?" That's a compliant, expected response to their call, and it's also the kind of response that gets you the job before your competitor calls back on Monday.

Where businesses actually get burned

It's rarely the responsive, one-to-one texts that cause problems. It's the bulk stuff. A business owner decides to text their entire customer database about a spring promotion, using a list built from years of paper invoices and old spreadsheets, with no record of who agreed to receive marketing texts. That's the setup that leads to complaints and fines.

If you want to run promotional texts to past customers, the safer approach is to build that list going forward with clear opt-in, rather than assuming permission because someone paid you an invoice in 2019.

The system matters more than the intent

Most service business owners aren't trying to spam anyone. They're trying to respond fast and stay in touch. The risk usually comes down to the tool, not the intent. A platform that automatically logs consent, includes opt-out language, and only texts people who've contacted you first keeps you compliant without you having to think about it on every message.

That's part of what Mustardseed Connect handles behind the scenes for missed-call text-back and follow-up messages. You don't have to remember to add a STOP line. You don't have to keep a spreadsheet of who said yes. The system is built around responding to people who already reached out, which is exactly the kind of texting the law is fine with.

This article is general information, not legal advice. Every business's situation is different, so before you make changes based on what you read here, it's worth getting a second opinion from an attorney. If you'd like access to affordable legal guidance whenever questions like this come up, contact us about a legal plan membership.

If you're already texting customers informally from your cell phone, or thinking about starting, it's worth a quick look at whether your setup actually protects you. Book a free consultation and we'll walk through what compliant, automated follow-up looks like for your business.