Plumbing businesses lose money in three predictable places: leads that go cold after hours, invoices that never get followed up, and happy customers who never leave a review because nobody asked. An AI agent fixes all three — automatically.

Here are the three automations from the plumbing chapter of the guide, with abbreviated prompts to get you started.

Automation 1: Emergency Routing & Response

Plumbing emergencies don't happen on a schedule. A burst pipe at midnight means someone is frantically searching for a plumber who responds. This automation makes sure that's you.

// Copy-paste prompt (abbreviated)

Monitor my incoming messages for emergency keywords: "burst," "flooding," "no water," "sewage," "leak," "emergency." When detected, immediately respond: "This is [Business Name]'s emergency line. We're on it. A plumber will call you within 15 minutes." Then alert me by phone call and text with the customer's details and issue.

The full guide includes keyword expansion, escalation logic for true vs. non-urgent emergencies, and after-hours on-call routing.

Automation 2: Invoice Follow-Up Sequence

The average plumbing shop has 15–20% of invoices go past 30 days. Most never follow up more than once, if at all. This sequence recovers that money without any awkward phone calls.

// Copy-paste prompt (abbreviated)

Every morning, check my invoices for overdue payments. Apply this sequence: - Day 14 overdue: Send a friendly reminder with invoice attached - Day 21 overdue: Send a firmer reminder, offer to set up a payment plan - Day 30 overdue: Send a final notice, flag for my personal review - Day 45 overdue: Add to my "collections review" list and stop automated outreach Never contact the same customer more than once per week. Log all outreach in my notes.

Automation 3: Review Generation System

Reviews are the lifeblood of local plumbing businesses. The problem isn't that customers don't want to leave reviews — it's that nobody asks them at the right moment. This automation asks at exactly the right time.

// Copy-paste prompt (abbreviated)

Two days after a job is marked complete, send the customer a text: "Hi [name], this is [Your Name] from [Business Name]. Really glad we could help with [job type] — hope everything's working great. If you have 60 seconds, a Google review means the world to a small business: [Google review link]. Thanks again!" Only send to customers who paid in full. Never send to customers who had a complaint or dispute.

The Math on These Three Automations

One extra emergency job per month at a $650 average ticket: $650. Invoice follow-up recovering 30% of overdue receivables on a $8,000 average monthly outstanding: $2,400. Review generation adding 8 five-star reviews per month — priceless for local SEO, but worth at least a 10–15% increase in inbound leads over 6 months.

Running cost: about $15/month in API fees.

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Also worth reading: What Is an AI Agent for Contractors? and AI Agent for HVAC Business.