SMS Marketing for Small Business: The Complete Guide
Email marketing? 20% open rate on a good day. Facebook ads? More expensive every month. SMS? 98% open rate, most read within 3 minutes. It's the most direct line to your customers that exists — and the easiest to abuse. Here's how to do it right.
Rule Zero: Permission
Only text people who opted in: customers who gave their number, leads who requested contact, subscribers who signed up. Cold texting purchased lists burns your number, your brand, and can violate regulations like the TCPA. Always include a simple opt-out ("Reply STOP").
The Five Texts That Make Money
- Appointment reminders — cut no-shows by 40–60%. Highest ROI text you'll ever send.
- Missed call text-back — recaptures 40% of missed callers instantly.
- Review requests — one tap to Google, sent right after a great experience.
- Rebooking/"you're due" — fills your calendar from your existing customer base.
- Promotions and win-backs — slow Tuesday? A same-day offer to past customers fills it.
Writing Texts That Don't Get Ignored
- Under 160 characters when possible
- One message, one ask, one link
- Sound like a person: "Hey Sarah, Mike from Summit Roofing here..."
- Send between 10 AM and 7 PM — never at midnight
- Frequency: 2–4 marketing texts per month, max
SMS + Automation = The Machine
Individual texts are tactics. Automated sequences are a system. With Nexxy, texts fire on triggers: a missed call, an upcoming appointment, a completed job, 60 days of silence. You write them once; they work forever.
Measuring What Matters
Track reply rate, booking rate, and opt-out rate. Healthy campaigns see 20–45% reply rates on service texts and under 2% opt-outs on promotions.
Conclusion
Your customers live in their text messages. Show up there respectfully, helpfully, and automatically — and you'll own a channel your competitors are still ignoring.
Building Your List the Right Way
Your best SMS list already exists: your customers. Collect numbers at booking, checkout, and intake — with clear consent ("Can we text you appointment reminders and occasional offers?"). Website popups with a first-visit offer work well for retail and restaurants. Never buy a list: purchased numbers produce complaints, not customers, and put your sending number at risk.
Campaign Calendar for a Year
Monthly backbone: one value message (tip, seasonal reminder) + one offer maximum. Seasonal spikes: HVAC in May/November, salons before holidays, gyms in January, restaurants on slow weekdays. Triggered (always on): reminders, text-backs, review requests, win-backs. The triggered messages do the heavy lifting; the calendar keeps you present.
The Anatomy of a Perfect Business Text
"Hi Maria! It's time for your AC tune-up before the summer rush. Book in one tap: [link] — Mike, CoolAir Heating. Reply STOP to opt out." Name, reason, one action, your name, opt-out. Under 300 characters. It reads like a helpful neighbor, because that's the register that gets replies.
Common SMS Mistakes
- Too frequent — more than weekly marketing texts and opt-outs spike
- No reply handling — a text that invites replies must have someone (or an AI) answering
- Generic blasts — "Dear customer" texts train people to ignore you
- Bad timing — nothing after 8 PM, nothing before 9 AM
- Every message is a sale — mix in value, or watch the list rot
SMS for Two-Way Service
The real unlock isn't blasting — it's conversation. Customers increasingly prefer texting a business over calling. When your number supports two-way texting with AI handling the routine replies, SMS stops being a marketing channel and becomes your service desk: booking, questions, status updates, all in the thread your customers already live in.
ROI Reality Check
A $40 SMS campaign to 500 past customers that books 8 appointments at $200 average = $1,600 revenue from one message. Few channels anywhere approach that ratio — which is why SMS, done respectfully, is the small business weapon of the decade.
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Related: Email Marketing Automation | Missed Call Text-Back