Text when the message is short, time-bound, and the person already knows you. Email when it's a first contact, has details, or something they might forward to a spouse or a partner. That covers most cases. The five situations below show where the rule bends, and the table right after this is the quick version.
Online, you'll find vendor posts claiming huge gaps between text and email open rates. Most come from companies that sell texting software, so I won't quote them. What matters for a small business is simpler: a text reaches someone while they're holding the phone, and an email lets them read it when it suits them and keep it. The examples here follow Colin Aoki, who runs Birch and Brook Home Inspection in Madison, Wisconsin and deals with both homebuyers and real estate agents.
The grid: situation, first channel, backup
| Situation | Use first | If no reply |
|---|---|---|
| Right after a call | Text, within the hour | Email the details the next morning |
| After you send a quote | Email (the quote itself) | Text on day 3, call on day 7 |
| A missed appointment | Text, within 30 minutes | Call the next day |
| A cold lead (no prior contact) | Email again, then a call. No texts. | |
| A past customer | Whichever they used last | Switch to the other after two tries |
Right after a call: text first, details later
After a phone conversation, the person is still thinking about it. A text within the hour keeps the thread alive: "Colin here. Thanks for talking this morning. I'll email the inspection options tonight." Then you send the email, which holds the information. The text said you'd do something, and the email does it. That pairing is what turns a call into a record. If your call went to voicemail, the voicemail script for following up with a lead covers the wording. More on the call itself is in how to follow up with a lead after a phone call.
After a quote: the document goes by email
A quote needs a permanent place to live: an attachment, line items, a date. Email is where people look for that later. So the quote goes by email, always. The text comes in on day three as a light touch: "Hi Kendra, did the inspection quote reach you? Happy to adjust anything." Use the text only to nudge toward the email, not to restate the price. On day seven, a call. The full path with wording is in how to follow up on a quote.
After a no-show: text within 30 minutes
When someone misses an appointment, speed matters more than the channel, and the fastest is a text. Make it warm, not accusing: "Hi Kendra, we missed you at 2:00 at the house on Birch Street. Everything okay? I can do tomorrow at 10 or 3." Most no-shows are mix-ups, and giving them two new times fixes it. If there's no reply, call the next day. A phone call at that point tells you whether the number even works. Reducing them at the front end is covered in how to confirm appointments by text.
A cold lead: email, because you haven't earned a text
If you found a real estate agent's name on a brokerage site, email is the channel. A text from a stranger feels invasive, and there are legal reasons to be careful, covered below. Email lets them read at their own pace and decide. If three emails go unanswered, call the office, don't text a cell number you found online. The reasoning behind the order is in should you call or email a lead first.
A past customer: go where the last conversation happened
Customers tend to stick to one channel. If Kendra booked by text last time, text. If she always emailed, email. The rule: use whichever she used last, and after two unanswered tries, switch to the other. A homebuyer whose house you inspected two years ago might not remember your name in an email, but will recognize a text that says, "It's Colin, the inspector from your Birch Street purchase." The wider approach for lapsed customers is in how to reactivate old leads.
Ten days of Colin's follow-ups, channel by channel
Here is how the grid looks over ten days. Monday at 10:00, Colin talks with Kendra, a homebuyer. At 10:40 he texts that he will send options, and that evening he emails two inspection packages: $425 for the standard inspection and $525 with radon testing. Tuesday at 2:00, a different buyer, Omar, misses a walkthrough. At 2:25 Colin texts two new times. Omar replies by 3:00, so no call is needed. Wednesday, Colin emails a quote to Priscilla, an agent's client. Saturday, which is day three, he texts her a short nudge. The following Wednesday, day seven, he calls. Meanwhile an agent who has never heard of him gets email one the first Monday and email two that Thursday.
Count it up: three texts, four emails and one call. Nothing was sent twice on the same day to the same person, and each text pointed to an email or a call that held the actual information.
When to switch channels
After two unanswered messages on one channel, switch. The switch itself is worth wording well: "Hi Kendra, I emailed the inspection options Monday and wanted to make sure they did not get buried. Is this the best way to reach you, or is text easier?" That last question is useful. Many people answer it in four seconds, and the answer tells you the channel for the rest of the relationship.
Consent, hours and tone for texting
Texting has rules email doesn't. In the US, marketing texts to a mobile number generally require the person's prior consent under the Telephone Consumer Protection Act, and a cell phone that belongs to a business owner is still a cell phone. The safest cases are a person who texted you first, or who gave you their mobile number on a form that said you'd text them. Keep to daytime hours in their time zone, roughly 8 a.m. to 9 p.m., and put an opt-out in the first message ("Reply STOP to opt out"). Consumers also have additional state protections. This is general information, not legal advice, and when you aren't sure you have consent, use email or a call.
On tone: texts should be one idea, under about 300 characters, signed with your first name and business. Don't send a text and an email at the same time. Send one, wait for its natural time, then use the other. Follow-up text message examples has more wording. And once you decide on a channel for each stage, writing it into a plan helps, like the one in sales cadence examples, or you can let the system handle the timing, as in automatic follow-up emails in Gmail.
Picking the channel is easy compared to remembering to follow up at all. Rocketship finds the buyers, emails them from your own Gmail, follows up, and books the meeting on its own. Plans that get you customers start at $24.99 a month (Launch), and every monthly plan starts with a 7-day free trial, card required. See how the AI workers follow up in the background.