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Just completed my build with slot lock
This is my 2nd entry after making some changes and the video showcase is in my 1st entry in case if you want see that too
Small HVAC businesses lose jobs every day simply because they can't always answer the phone.
When a homeowner's AC breaks, they need help quickly. If their call goes to voicemail, there's a good chance they'll call the next company instead.
Even when the call is answered, there's often a lot of back-and-forth to confirm the service area, understand the problem, collect customer details, and find an available time slot.
That's where SlotLock comes in.
SlotLock is a booking and dispatch platform built for residential HVAC contractors. It lets homeowners check whether they're within the service area, provide basic information about their issue, and book an available arrival window themselves.
Once the booking is confirmed, the job is sent directly to the contractor's dispatch board with the relevant customer and service details. Confirmations and arrival updates can also be handled automatically.
The result is simple: fewer missed calls, less phone tag, less manual admin work, and more confirmed appointments.
Small service businesses shouldn't lose a job just because nobody was available to answer the phone.
SlotLock keeps the booking process running, even when the team is busy.
The network for creativity
Join 1.25M professional creatives like you
Connect with clients, get discovered, and run your business 100% commission-free
Creatives on Contra have earned over $150M and we are just getting started
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Onboarding feels fast when every step hands off to the next.
Slide the screen, fill the progress, roll the number. No spinners, no dead frames.
Your website could be generating enquiries every day, but how many potential customers are slipping through because nobody is following up quickly or qualifying them properly?
A business owner reached out to me with exactly this problem.
Their website was collecting enquiries, but there was no consistent process for reviewing them, identifying serious prospects and responding.
So I built a system to handle that entire process.
Here's what happens when someone submits an enquiry:
→ The system picks it up immediately, whether it's 2 PM or 2 AM.
→ Invalid submissions and duplicate enquiries are filtered out.
→ Each enquiry is assessed against the business's own qualification rules and classified as qualified, needing more information, or not a fit.
→ Every assessment must be supported by exact quotes from the original enquiry. Those quotes are independently verified, so unsupported claims are marked as unknown.
→ Each lead is added to the CRM with its assessment, notes and pipeline card.
→ A personalised reply is drafted based on the information provided, asking only for what's missing.
→ The draft goes to Slack for human review. A team member can approve it, edit it or reject it.
→ Once approved, the email is sent and the lead moves forward in the pipeline.
I built the entire system using n8n and Claude, with the client's existing tools and accounts.
One important detail: AI makes only two decisions throughout the entire workflow. Everything else is designed to validate those decisions and keep the process controlled, traceable and reliable.
The goal isn't simply to automate emails. It's to make sure incoming enquiries are properly handled, qualified and followed up without relying on someone to manually manage every step.
If you're a business owner, founder or agency owner looking to improve how your business handles incoming leads, send me a DM.
Let's build something around your business.
What to automate first, depending on your business:
🏠 Real estate agents: an instant reply to every new lead
🎯 Coaches: a keyword DM that starts the conversation, plus a booking page with reminders
🔧 Local businesses: review requests and a missed-call text-back
📋 Everyone: one pipeline where every lead lives
Start with one. Get it working. Then add the next.
Which one are you starting with? 👇
