Email vs. SMS Follow-Up: Which Channel Actually Books Appointments?
SMS opens at 98%. Email converts at 3–5%. The secret is using each for what it's actually good at.
The follow-up channel debate usually devolves into 'email is dead' or 'SMS is spam.' Neither is true. SMS has a 98% open rate and a 45% response rate, but it also has a 0.3% unsubscribe rate per send. Email has a 20% open rate and a 3–5% conversion rate, but it's cheap, long-form, and searchable. The best contractors use both — deliberately.
SMS: speed and urgency
SMS wins when the lead is hot and the action is simple. Use it for: immediate acknowledgment of a form submission, appointment reminders 24 hours out, and review requests within 2 hours of job completion. Keep messages under 160 characters, include a first name, and always provide an opt-out.
- Immediate auto-reply: 'Thanks [Name]. We received your [Service] request and will call within 15 minutes.'
- Reminder: '[Name], your [Service] estimate is tomorrow at 2 PM. Reply C to confirm or R to reschedule.'
- Review request: '[Name], thanks for choosing [Company]. A quick review helps other [City] homeowners find us: [Link]'
Email: depth and nurturing
Email wins when the prospect needs education, comparison, or time to decide. Use it for: estimate follow-ups with case studies, seasonal maintenance reminders, and long-term nurture sequences for leads who aren't ready yet.
The follow-up sequence that works
- Minute 0: SMS auto-reply acknowledging the inquiry
- Hour 1: Human phone call (the highest-converting action)
- Day 1: Email with estimate summary and next steps
- Day 3: SMS check-in if no reply — 'Hi [Name], quick question about your estimate'
- Day 7: Email with a relevant case study or testimonial
- Day 14: SMS final follow-up — 'Still interested? We're booking [Month] now.'
- Day 30: Email nurture — seasonal tip or maintenance reminder
Compliance you can't skip
TCPA requires express written consent for SMS marketing. Every form that triggers SMS should have a clear checkbox: 'I agree to receive text messages about my inquiry.' Email needs an unsubscribe link under CAN-SPAM. We build both into every RapidLocal form by default.
Frequently asked questions
What is a good response rate for SMS follow-up?
Immediate auto-replies see 10–20% direct replies. Review request SMS sees 15–25% click-through to the review link. Cold SMS follow-up after an estimate drops to 5–10%, which is still 2–3x email.
How many follow-ups is too many?
Six touchpoints over 30 days is the sweet spot for most contractors. Beyond that, you're more likely to annoy than convert. Park long-term leads in a quarterly nurture sequence instead.
Should I use a personal number or a business line for SMS?
Always a business line. It protects your privacy, enables team handoff, and lets you track response rates and set auto-replies when you're on a job site.