AI Resource Center for HVAC Contractors | Duncan Supply
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Practical AI for HVAC Contractors

No hype. No software pitches. Just practical ways to save time, capture more leads, and run a better business.

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Quick wins

Five ways AI can help your business today

You don't need to understand how any of this works. You just need to know what it does for the shop. Here are five.

Never miss a lead

When you can't pick up, AI texts the caller back in seconds so the job doesn't walk to the next company.

What it gets youCapture calls you lose every week

Follow up on every estimate

AI writes and sends the polite follow-ups you never have time for, so quiet quotes turn back into booked jobs.

What it gets youWin work you already quoted

Generate more reviews

AI asks your happy customers for a review at the right moment, in your voice, without you remembering to.

What it gets youRank higher, earn more trust

Reduce office busywork

AI drafts the emails, summarizes the calls, and answers the routine questions in seconds, not hours.

What it gets youHours back every week

Become a better operator

AI helps you think through a hard decision like a seasoned advisor would, any time of day, for free.

What it gets youRun the business, stop reacting
Copy. Paste. Done.

Steal these AI prompts

Open a free account at Claude or ChatGPT, paste one of these in, and answer the questions. That's the whole skill. Tap one to open it.

1

Find my biggest leak

Let AI interview you and pinpoint where you're losing the most money.

Why it matters

Most owners think they have a lead problem. Usually it's a leak: a missed call, a slow callback, an estimate nobody followed up on. This finds the worst one first.

The prompt
You are a sharp operations consultant who has helped hundreds of HVAC companies find where they lose money. I own an HVAC company. Before giving any advice, interview me one question at a time about how my business actually runs: how leads come in, who answers the phone, what happens to missed calls, how fast we respond, how we quote, how we follow up on estimates, how we schedule, and how we ask for reviews. Ask only one question at a time and wait for my answer. Keep going until you have enough to spot the single biggest leak. Then tell me: 1) the one place I am losing the most money, 2) why it is happening, 3) three steps to fix it this month, and 4) a rough estimate of what fixing it is worth. Use plain language and no jargon.
Tips for a better answer
  • Answer honestly, even the ugly parts. The tool can't help with a problem you hide.
  • If it asks something you don't track, say so. That's often the leak.
  • When it's done, ask: "What would you fix second?"
2

Become my COO

Get coached through a real challenge by a seasoned operator.

Why it matters

Most owners have nobody to think out loud with. This gives you a calm, experienced second opinion before you make a big call.

The prompt
Act as the COO of a $20 million HVAC company with 25 years of experience running operations. I am the owner of a smaller HVAC company and I am stuck on a challenge. First, ask me to describe the challenge and a few details about my business: revenue, team size, and what is going on. Then coach me the way a seasoned COO would. Ask clarifying questions, lay out my real options with the trade-offs, recommend the one you would choose and why, and give me a simple step-by-step plan I can start this week. Be direct and practical. If you think I am avoiding the real problem, say so.
Tips for a better answer
  • Give it real numbers. Vague questions get vague advice.
  • Tell it what you've already tried, so it doesn't repeat you.
  • Ask it to "make the plan simpler" if it gets too long.
3

Rewrite my customer communication

Turn an awkward message into something clear, warm, and trusted.

Why it matters

How you say it decides whether they book, pay, or leave a review. This fixes emails, follow-ups, reminders, and the hard conversations in seconds.

The prompt
You are an expert copywriter who writes for home service companies in a warm, clear, professional voice. I am going to paste a message I send to customers. Rewrite it so it is friendly, easy to read, and builds trust, without sounding corporate or pushy. Keep it short and match the tone a good HVAC owner would use with a neighbor. Give me two versions: one slightly warmer, one slightly more direct. Here is the message:

[PASTE YOUR EMAIL, ESTIMATE FOLLOW-UP, MAINTENANCE REMINDER, REVIEW REQUEST, OR DIFFICULT MESSAGE HERE]
Tips for a better answer
  • Tell it the goal: book the job, collect payment, calm an upset customer.
  • Say "keep it under 100 words" if you want something fast to send.
  • Save the version you like as your new template.
4

My weekly business coach

Paste your numbers, get the three moves that matter this week.

Why it matters

Ten minutes on a Monday beats reacting all week. This turns your numbers into a short, prioritized to-do list.

The prompt
Act as my weekly business coach for my HVAC company. I will paste this week's numbers. Tell me in plain language what is going well and what is concerning, then give me the three highest-impact actions for the coming week in priority order, each with one sentence on why it matters. Keep the whole thing short enough to read in two minutes. If an important number is missing, tell me which one I should start tracking and why. Here are this week's numbers:

Calls received: [ ]
Calls answered: [ ]
Estimates sent: [ ]
Jobs booked: [ ]
Average ticket: [ ]
Revenue: [ ]
Reviews collected: [ ]
Tips for a better answer
  • Run it the same day each week so you can compare.
  • Paste last week's numbers too and ask what changed.
  • Don't have a number? Estimate it. A rough figure still helps.
5

Build my marketing calendar

Twelve months of promotions, reminders, and posts, planned in minutes.

Why it matters

Marketing falls apart when it's a scramble. A year on one page means you're never staring at a blank calendar in the slow season.

The prompt
You are a marketing strategist who knows the HVAC business and the seasons that drive it. Build me a simple 12-month marketing calendar for my HVAC company in [YOUR CITY AND STATE]. For each month include: one promotion or offer that fits the season, one maintenance reminder to send existing customers, one seasonal campaign idea, one local community or event tie-in, and two social media post ideas. Keep everything practical and easy for a small team to actually do. Lay it out in a clean month-by-month list I can follow.
Tips for a better answer
  • Tell it your specialty: residential, light commercial, install, service.
  • Ask it to "write the first month's emails and posts for me" next.
  • Hand the finished calendar to whoever runs your social media.
💡

Pro tip

Start by using estimates or rounded numbers instead of exact business figures. Once you're comfortable, consider upgrading to a paid Claude or ChatGPT account before working with more detailed business information.

Start here

You don't need 100 AI tools. You need one tool that solves one problem.

These are the five tools we recommend most often to HVAC contractors, because they're practical, affordable, and easy to start using today.

Claude

~$20/mo · free tier
Best for

Writing, follow-ups, and thinking through a decision in plain conversation.

Why you'll care

A sharp assistant for words and plans that actually sounds human.

Beginner friendly

ChatGPT

~$20/mo · free tier
Best for

All-purpose writing, brainstorming, and quick answers to almost anything.

Why you'll care

The easiest place to start. Open it, type like you'd text a friend.

Beginner friendly

CallRail

~$50+/mo
Best for

Tracking and recording your phone calls, then summarizing them.

Why you'll care

See which ads make the phone ring, and stop losing leads to calls nobody heard.

Beginner friendly

Zapier

free – ~$30/mo
Best for

Connecting your tools so things happen automatically, no code needed.

Why you'll care

A missed call can trigger a text without anyone lifting a finger.

Beginner friendly

AI Receptionist Platforms

varies
Best for

Answering your phone 24/7 in a natural voice and booking the call.

Why you'll care

Never send another customer to voicemail, even at 2 a.m. on a Saturday.

Beginner friendly

Not sure where to start?

Pick ChatGPT or Claude, run one playbook above, and see how it feels. That's the whole first step.

See your next step
Ready to go further?

AI doesn't replace great contractors.

It helps great contractors operate more consistently. The phone gets answered. The estimate gets a follow-up. The good customer gets asked for a review. Every time, not just when you remember.

Duncan Supply has backed contractors since 1936. This resource is part of that same job: helping the people who keep homes running build stronger, steadier businesses. We're in your corner, the same as always.