Missed calls cost you money.
CloseStack builds AI automation systems for local service businesses — roofers, HVAC, med spas, dentists. Systems that answer calls your team misses, qualify every lead, and book appointments automatically.
Your phone rings. No one picks up. CloseStack catches it instantly — before the caller moves on to your competitor.
Within seconds, our AI texts back with a personalized response. It qualifies the lead — are they a homeowner? Do they have a job ready to go? — and responds in your brand voice.
Qualified prospect picks a time slot. It's added to your calendar automatically. No back-and-forth. No lost lead.
Reminders sent. Reviews requested after job completion. Dormant customers reactivated. The system handles the follow-up so you don't have to.
Built on proven infrastructure
CloseStack is built on OpenAI, Twilio, GoHighLevel, and Retell AI. No black boxes. When you need to understand what happened, you can. When you need to add a feature, it's already in your stack.
"Most local businesses aren't losing because they have bad marketing. They're losing because they answer the phone 47 hours too late."
A roofer who misses one storm-damage call loses an $8,000 job. A med spa that doesn't respond to an inquiry loses a $2,000 client. The ads are working. The leads are coming. The system is broken at the handoff.
CloseStack exists to fix that handoff. Fully automated, always on, runs when you're sleeping.
Software scales. The AI runs 24/7. There's no ceiling on the number of businesses you can serve. The math works. The tools are cheap. The market is ready.
Roofing. HVAC. Med spas. Pick one, own it.
Missed Call Text Back AI. One workflow, proven outcome.
$2k setup + $1,500–$5k/month. Retainers that compound.