SMS vs Email vs Phone — What Books More Jobs for Trades
Reply rates, response times, and booked-job conversion for the three channels contractors actually use. Real numbers from real installs, plus when to use each.
The question I get asked more than any other from contractor owners: “Should I be texting my leads, calling them, or emailing them?”
The answer is yes. All three. But not at the same time, and not in equal proportions. The shops booking the most work have figured out which channel does which job — and which channel they were over-relying on.
This is one of the most measurable parts of the Convert chapter from Why Your Website Isn’t Ringing, because every CRM tracks reply rates by channel automatically. The data below comes from approximately 80 contractor accounts we’ve installed or audited between mid-2024 and early 2026.
The headline numbers
Across HVAC, plumbing, electrical, roofing, and remodeling installs, here’s what reply rates and conversion rates look like by channel for the first follow-up touch (within 5 minutes of an inbound lead):
| Channel | Reply rate (within 1hr) | Booked-job conversion |
|---|---|---|
| SMS | 32–48% | 24–35% |
| Phone (live) | 18–24% (live answer) | 35–55% |
| Phone (voicemail) | 4–9% (callback) | 8–14% |
| 6–11% (open + reply) | 4–9% |
A few things jump out:
- SMS gets the most replies. Nothing else is close.
- Phone calls that connect live convert at the highest rate. They’re the most powerful channel — when they connect.
- Voicemails barely work. Most contractors are still leaning on this and wondering why their funnel leaks.
- Email is mostly invisible for the first response, but it has a different job to do later.
What each channel is actually good at
SMS — the conversation opener
Use SMS to:
- Respond to inbound leads within 5 minutes (text-back, calendar request, web form)
- Confirm appointments the day before
- Re-engage cold leads on day 5, day 14, day 30
- Send the calendar link after a voicemail
- Ask one short question that requires a one-word answer
Don’t use SMS to:
- Send a $6,000 quote
- Explain financing options
- Push for a buying decision after the homeowner has gone quiet
- Send paragraphs of marketing copy
The SMS rule we install with every client: under 160 characters, one question, one expected reply. If you can’t say it in 160 characters, it doesn’t belong in SMS.
Phone — the closer
When a customer is willing to talk, you’ll book them at 2–4x the rate you’d get from text or email. The whole point of SMS is to earn the right to call. Once a homeowner texts you back, your next move is almost always: “Mind if I call you in 5 minutes to walk through this?”
Phone is also the only channel where pricing conversations consistently work. Anything over a $2,500 ticket should be quoted on a live call, not in writing. The shops that try to email or text their estimates lose to the shops that get on the phone — every time.
Email — the trust builder
Email has the worst short-term reply rate of the three. It also has the highest long-term value when used correctly:
- Appointment confirmations with your address, license number, and tech bio
- Post-job follow-up with photos and the warranty document
- Educational content for leads in research mode
- Re-engagement to dormant lists 60–180 days out
Email is also the channel where Google’s quality signals matter most for deliverability. If you’re sending campaign emails from a personal Gmail with no SPF/DKIM/DMARC set up, half of them are landing in promotions or spam. Use a transactional sender (the one built into your CRM, or a service like Postmark or SendGrid) and you’ll see 20–30% better open rates immediately.
The wrong answer: “I just call them”
The most common mistake we see in contractor businesses, especially smaller ones: “I just call my leads back when I get a chance.”
What actually happens:
- 60% don’t pick up because the number is unknown
- 70% of those don’t return the voicemail because you didn’t text them after
- The ones who do call back hit a tech in the truck who can’t book them
- The owner ends up working leads at 9pm from his couch and burning out
Phone is too high-effort to be your only channel. You’ll skip touches when you’re tired. SMS doesn’t get tired.
The wrong answer: “We do email blasts”
The other end of the spectrum: shops that built up a 3,000-person email list from old customers and now blast it once a month with seasonal promotions.
The list isn’t worthless — but if you’re not also texting and calling the segments most likely to buy this season, you’re treating email like a megaphone instead of a relationship channel. The booked-job conversion from a generic email blast usually runs under 1%. The same audience worked with a 3-touch SMS-then-phone sequence converts at 4–9%.
A working sequence (the order matters)
The sequence we install in The Contractor Follow-Up Sequence (Day 0 → Day 30) uses all three channels in this order:
- SMS first (because it gets the highest reply rate)
- Live call second (once they’ve replied, you’ve earned the right)
- Email third (to confirm, document, and keep you visible)
- Repeat the SMS-then-call rhythm every few days for 30 days
- Drop email-only into the long-term nurture after the 30-day window
This isn’t channel preference. It’s a hierarchy based on what each channel does best. Skip the order and your conversion rate drops by half.
What this looks like in your phone
The biggest behavior change for owners after installing this is small but huge: you stop calling unknown leads cold and start calling them after they’ve already texted you back.
Your call connect rate goes from 18% to 60+%. Your conversations get easier because the customer already knows who you are. Your day-end stress goes down because most of the back-and-forth happened over text while you were on a job site.
For the foundational text-back move that opens the channel, read Missed-Call Text-Back: The 30-Second Setup That Saves 40% of Leads. For the lead-handoff system that makes sure none of those replies fall through the cracks, see How to Hand Off Leads Between Office, Sales, and Crew.
The full system is in the Convert chapter of the book. If you’d rather have it installed end-to-end on your CRM, book a free 15-minute call and we’ll walk through what your current channel mix looks like.