Build Sell AI Book a Discovery Call

Every missed call is a job your competitor just booked.

I build custom AI systems for HVAC, plumbing, roofing, and electrical companies. They answer the phone, qualify leads, chase dead quotes, and sort your inbox, so your crew stays on the job and the revenue stops leaking out the back.

Book a Discovery Call Watch the systems run

Incoming call, 9:42 PM

After hours. Nobody at the office.

Answered
  • AI picks up on the first ring and greets the caller by company name.
  • Caller: "My water heater is leaking into the garage."
  • Marked as an emergency. Address and callback number captured.
  • Booked into tomorrow's 8:30 AM slot on your calendar.
  • Confirmation text sent to the customer. Your tech gets the job details.

Four systems that take the busywork off your plate

Each one is built around how your company already runs, then connected to the tools you use today.

AI Receptionists

Human-like voice agents answer every missed call, 24/7, then book the appointment straight into your calendar.

Automated Lead Qualification

New leads get an instant reply by call, text, and email. Hot leads reach you first. Tire-kickers get filtered out.

Unsold Estimate Revival

Automated follow-ups reach back out on quotes that went quiet and turn dead estimates into booked jobs.

Onboarding & Inbox Agents

AI sorts and answers customer messages, and sets up new clients without anyone copying details between apps.

See it in action

Real walkthroughs of the systems I build. No slides, just the workflows running.

AI Inbox Agent. Reads incoming customer emails, sorts them by urgency, and drafts or sends the right reply.
Onboarding Agent. Collects new client details, creates the records, and sends the welcome steps automatically.
Lead Qualification. A new lead comes in and gets contacted within seconds, scored, and routed to the right person.
Unsold Estimate Revival System. Follows up on quotes that went cold and brings customers back to approve the job.
Aryan Prabhakar, founder of Build Sell AI

Hi, I'm Aryan Prabhakar

I'm an AI engineer, not a marketer reselling software. I design and build workflow automations in n8n and voice agents with Retell AI, then wire them into the phones, inboxes, and booking tools your business already uses.

When you work with me, you talk to the person who builds your system. I scope it on the discovery call, build it, test it against real scenarios, and stay on to fix what needs fixing.

Connect with me on LinkedIn

Find out how much the phone is costing you

On a short discovery call, we'll look at where calls and quotes slip through and what to automate first.

Book a Discovery Call