The text message that changed everything for my buddy’s HVAC shop wasn’t a marketing campaign or a discount offer. It was this:
“Hi Mrs. Rodriguez! Your technician Jason is on his way. ETA: 20 minutes. [Jason’s photo]”
That’s it. A simple “on my way” text with a photo of the tech. His five-star Google reviews doubled in two months. Customers would write: “Loved that they texted me who was coming and when. Felt safe and informed. We break this down further in How to Get More Google Reviews for Your HVAC Business.”
Customer communication is the single easiest way to look more professional than your competitors. Here’s how to do it right.
The Communication Timeline That Works
Every customer interaction should follow this flow:
1. Booking Confirmation (Immediate)
The second a job is scheduled, the customer should get a text:
“Thank you for choosing [Company Name]! Your HVAC service is confirmed for Tuesday, March 15 between 10am-12pm. Reply C to confirm or R to reschedule.”
This does three things: confirms the appointment, gives the customer an easy way to reschedule, and makes your company look organized. Most competitors don’t send confirmations. You will.
2. Day-Before Reminder
“Reminder: Your HVAC service is tomorrow between 10am-12pm. Please ensure someone 18+ is home and the area around your furnace/AC is accessible. Questions? Reply to this text.”
This reduces no-shows by 30-50%. It also prompts customers to clear a path to their equipment — saving your tech time on the job.
3. On-My-Way Notification
“Jason is headed your way! ETA: 20 minutes. [Photo of Jason]”
This is the golden text. Customers feel informed. They know who’s coming. They stop anxiously checking the window. And it gives them time to put the dog away or unlock the gate.
4. Job Complete / Invoice
“Your service is complete! Invoice #4521 for $285.00 has been sent to your email. Pay online: [link]. Thank you!”
Instant invoicing. No waiting for a mailed bill. The customer pays with a click.
5. Review Request (2 Hours Later)
“Thanks again for choosing [Company Name]! If you were happy with Jason’s service, a quick Google review helps our small business a lot: [link]. Thank you!”
Timing matters. Two hours after the job — they’re still feeling the relief of having their AC working again.
6. Follow-Up (7 Days Later)
“Hi Mrs. Rodriguez, just checking that everything is working well after last week’s service. Any questions? We’re here to help! - [Company Name]”
This follow-up shows you care beyond the transaction. It also catches any post-repair issues before they become complaints.
Tools That Handle This Automatically
Built Into Your FSM Software
Housecall Pro — Best automated communication out of the box. Booking confirmations, on-my-way texts with tech photo, post-job follow-ups, and review requests all trigger automatically when job statuses change. Almost zero setup required.
ServiceTitan — Comprehensive communication with more customization. You can build multi-step sequences for different job types, customize message templates, and even route unhappy customers to an internal feedback form before they hit Google.
Jobber — Has automated confirmations and reminders. The quote follow-up automation is nice — when a customer hasn’t responded to an estimate after 3 days, Jobber sends a gentle nudge automatically.
Dedicated Communication Tools
Podium ($399+/month) — Text-based customer communication platform popular with home service companies. Two-way texting, webchat, review management, and payment collection via text. Expensive but comprehensive if your FSM software’s communication is lacking.
Hatch ($200+/month) — AI-powered customer communication specifically for home service companies. Automated text follow-ups on unsold estimates, speed-to-lead responses, and multi-channel outreach. Integrates with ServiceTitan and other platforms.
GoHighLevel ($97-$297/month) — CRM with robust text and email automation. Build custom drip campaigns for different customer segments. Popular with HVAC companies that want sophisticated marketing automation.
Broadly ($300+/month) — Focused on review generation and customer communication. Simple setup, effective at driving Google reviews. Less versatile than GoHighLevel but easier to use.
Free / Budget Options
Google Voice (Free) — A dedicated business phone number that texts and calls from your personal phone. Basic but effective for a solo operator.
Mailchimp (Free tier) — Email marketing for customer newsletters and seasonal promotions. The free tier covers up to 500 contacts.
Communication Strategies That Drive Revenue
Speed to Lead
When a potential customer fills out a form on your website or requests a quote, how fast do you respond? Research shows that responding within 5 minutes makes you 21x more likely to qualify the lead compared to responding in 30 minutes.
Set up instant auto-responses: “Thanks for reaching out to [Company Name]! We received your request and will call you within 15 minutes.”
Then actually call within 15 minutes. The combination of an instant text plus a quick callback wins jobs.
Unsold Estimate Follow-Up
The average HVAC company closes 40-50% of estimates. The other 50-60% aren’t all dead — many customers just needed time to think, got distracted, or were comparing quotes.
Automated follow-up sequence:
- Day 3: “Hi [name], just following up on the estimate for your AC repair. Happy to answer any questions!”
- Day 7: “Still thinking about the repair? No rush — the estimate is good for 30 days. Call or text us anytime.”
- Day 14: “Last check-in on your estimate from [date]. We’d love to help when you’re ready!”
This sequence recovers 10-20% of otherwise lost estimates. On 20 unsold estimates per month at $1,500 average, recovering 3-4 is $4,500-$6,000 in monthly revenue.
Seasonal Outreach
Text your customer base twice per year with seasonal reminders:
Spring (March-April): “Hey [name], summer’s coming! Schedule your AC tune-up now before the rush. Book online: [link] or reply YES and we’ll call you.”
Fall (September-October): “Hi [name], time to make sure your furnace is ready for winter. Book your heating check-up: [link]”
These fill your slow-season schedule with maintenance revenue from existing customers. A text to 1,000 customers converts at 3-5%, that’s 30-50 bookings at $150+ each = $4,500-$7,500.
Post-Job Communication for Agreement Sales
After completing a repair, follow up with a maintenance agreement pitch:
“Hi [name], thanks for choosing us for your [repair type]. Did you know our Priority Comfort Club includes two annual tune-ups, 15% off repairs, and priority scheduling? Just $189/year. Interested? Reply YES or call us.”
This converts 5-10% of one-time customers into agreement holders — your most valuable customer segment.
What NOT to Do
- Don’t text after 7 PM or before 8 AM. Respect quiet hours.
- Don’t text-blast promotions weekly. You’ll get opt-outs and annoy customers.
- Don’t send long texts. Keep messages under 160 characters when possible. If you need to say more, use email.
- Don’t use jargon. “Your ECM blower motor is failing” means nothing to a homeowner. “Your furnace blower isn’t working properly and needs repair” does.
- Don’t forget to include opt-out options. “Reply STOP to unsubscribe” is legally required for marketing texts.
The Stack I Recommend
For most HVAC shops: Your FSM software’s built-in communication (Housecall Pro, Jobber, or ServiceTitan) handles 80% of what you need. Set up automated confirmations, on-my-way texts, and review requests. That alone puts you ahead of 90% of competitors.
If you want to level up: Add GoHighLevel ($97/month) for advanced text/email sequences — unsold estimate follow-ups, seasonal campaigns, and drip marketing.
If you’re a larger operation: Podium or Hatch for comprehensive text-based communication with AI-powered responses and multi-channel management.
The cost of good communication tools is $0-$300/month. The cost of poor communication — lost customers, missed follow-ups, no reviews, unprofessional image — is thousands per month. If you’re exploring this area, our Best HVAC Software Under $100/Month guide covers it in detail.
Start with the automated texts your FSM software already offers. Most shops have these features and aren’t using them. Turn them on today.