The headline is the single most important element of any ad, landing page, or marketing piece. On average, five times as many people read the headline as read the body copy. Writing the wrong headline does not produce a weak ad — it produces an invisible one.

These 27 formulas work across Facebook, Google Display, direct mail, landing pages, and Google Business Profile posts. Each one has examples for HVAC, plumbing, and electrical. Every formula can be adapted for any home service trade.

One rule applies across all of them: one offer, one CTA. A headline that perfectly names the problem still fails if the rest of the ad buries the prospect in choices.

The 27 Formulas

1. Ask a Question

Questions pull the reader in because they demand a response. Use questions the target customer will instinctively answer "yes" or "that's me" to.

HVAC: "Are My Heating Bills Really This High?"
Plumbing: "Why Are My Water Bills Going Up Every Month?"
Electrical: "Is My Electrical Panel Safe?"

2. Tie-In to Current Events

Connect your offer to something happening in the news or the season. Relevance creates urgency.

HVAC: "Schedule Your Tune-Up Before the Summer Heat Arrives"
Plumbing: "Prepare Your Pipes Before the First Freeze"
Electrical: "Storm Season Is Here — Is Your Home's Wiring Ready?"

3. Create a New Terminology

Coin a phrase that frames your service memorably. Gives the reader something to think about and repeat.

HVAC: "Introducing the 'Comfort Zone Audit' for Homeowners"
Plumbing: "Introducing the 'Pipe Health Score' for Your Home"
Electrical: "The 'Safety Snapshot' — A New Way to See What's Behind Your Walls"

4. Use "New," "Introducing," or "Announcing"

These words signal that something has changed. Humans are wired to notice novelty.

HVAC: "New: Schedule Your AC Tune-Up Online in 60 Seconds"
Plumbing: "Introducing: Same-Day Water Heater Replacement in [City]"
Electrical: "Announcing: Fixed-Price EV Charger Installation — No Surprise Invoices"

5. Give the Reader a Command

A direct instruction. Works best when the action is easy and the offer is clear.

HVAC: "Schedule Your Tune-Up Today Before Summer Rates Apply"
Plumbing: "Touch Your Hot Water Tank Right Now — Here's What It Should Feel Like"
Electrical: "Call Now for a Free Home Electrical Safety Inspection"

6. Use Numbers and Statistics

Numbers are specific. Specificity builds credibility. Be as exact as honest data allows.

HVAC: "9 Out of 10 HVAC Failures Happen in the First Heatwave of Summer"
Plumbing: "97% of Our Customers Would Recommend Us — Here's Why"
Electrical: "LED Upgrades Cut Lighting Bills by Up to 75%"

7. Promise Useful Information

The reader should come away knowing something they did not before. Educational content earns attention that sales copy never gets.

HVAC: "How to Tell If Your AC Needs a Repair or a Replacement"
Plumbing: "How to Know If Hard Water Is Damaging Your Pipes"
Electrical: "How Many Watts Can Your Home's Panel Actually Handle?"

8. Highlight the Offer

Sometimes the offer itself is the headline. Only works when the offer is specific and compelling. "Free Quote" is not an offer — it is a commodity. See our full breakdown of why in Why "Free Quote" Is Killing Your Plumbing Ads.

HVAC: "$89 AC Tune-Up — This Week Only"
Plumbing: "$99 Drain Cleaning — Any Drain, Same Day"
Electrical: "Free Panel Inspection With Any Electrical Service Call"

9. Tell a Story

Stories create connection and memorability. Start in the middle of the action, not at the beginning.

HVAC: "Our AC Failed on the Hottest Day of the Year — This Is What We Learned"
Plumbing: "We Found the Real Reason This Family's Water Bills Were $300 a Month"
Electrical: "Five Warning Signs Preceded This House Fire — All of Them Were Ignored"

10. Make a Recommendation

Position yourself as the trusted expert with a clear point of view. Start with a strong verb.

HVAC: "Switch to a Smart Thermostat Before Your Next Tune-Up"
Plumbing: "Flush Your Water Heater Before the Next Winter Freeze"
Electrical: "Upgrade to GFCI Outlets Before You Renovate Your Bathroom"

11. State a Benefit

Lead with the outcome, not the feature. The homeowner does not care about the product — they care about what life looks like after.

HVAC: "Keep Your Home Cool All Summer for as Little as $50 a Month"
Plumbing: "Enjoy Fresh, Clean Water From Every Tap in Your Home"
Electrical: "Control Every Light in Your Home From Your Phone"

12. Make a Comparison

Comparisons frame your offer relative to alternatives, letting you control the context.

HVAC: "Heat Pump vs. Gas Furnace: Which Saves More Money in [City]?"
Plumbing: "Tankless vs. Tank Water Heater: What's Actually Right for Your Home?"
Electrical: "LED vs. Halogen: The Real Numbers After 12 Months"

13. Use Words That Help the Reader Visualise

Create a mental image. The mind stores images more reliably than abstract concepts.

HVAC: "Imagine Walking Into a Cool House on a 95-Degree Day"
Plumbing: "Imagine Crystal-Clear Water Running From Every Tap"
Electrical: "Imagine Every Light in Your Home Perfectly Dimmed — All From Your Phone"

14. Use a Testimonial

A real customer's words in quotes carry more weight than your best marketing copy. Use exact language — the imperfections make it credible.

HVAC: '"Our energy bills dropped $90 a month after the tune-up." — Mike R.'
Plumbing: '"They fixed the leak the same day. No mess, no hassle." — Sarah K.'
Electrical: '"Honest, fast, and the price was exactly what they quoted." — James T.'

15. Offer a Free Resource

A report, guide, checklist, or calculator creates lead-generation opportunities and positions you as a trusted source before any sales conversation.

HVAC: "Free Guide: How to Cut Your Energy Bills Before Summer"
Plumbing: "Free Checklist: 8 Signs Your Water Heater Needs Replacing This Year"
Electrical: "Free Report: 10 Signs Your Home Needs an Electrical Upgrade"

16. State the Selling Proposition Directly

Plain language. The reader should know exactly what you do and why it matters in one sentence.

HVAC: "We Keep Your Home Comfortable Year-Round — Guaranteed"
Plumbing: "We Fix Any Plumbing Problem, Any Time — Or You Don't Pay"
Electrical: "Licensed Electricians, Fixed Prices, Same-Day Availability"

17. Arouse Reader Curiosity

Leave something unresolved. The reader needs to click to find out. Do not reveal the answer in the headline.

HVAC: "The One Thing Most Homeowners Do That Doubles Their AC Running Cost"
Plumbing: "The Simple Fix That Stops 90% of Leaky Faucets"
Electrical: "The Lighting Upgrade Most Electricians Won't Tell You About"

18. Promise to Reveal a Secret

An insider angle. The implication is that this is information most people do not have access to.

HVAC: "The Setting on Your Thermostat That's Adding $60 to Your Bill Every Month"
Plumbing: "The Plumbing Trick That Can Save Thousands on Water Bills Over 5 Years"
Electrical: "The Electrical Upgrade That Protects Your Appliances From the Next Power Surge"

19. Be Specific

Vague claims are invisible. Specific claims are credible. Replace every generic phrase with a number or a measurable outcome.

HVAC: "HVAC Maintenance Plans From $X/Month — Covers All Labour and Parts"
Plumbing: "24/7 Emergency Plumbing — We Aim to Be On-Site Within 60 Minutes"
Electrical: "Panel Upgrades From $X — Fully Licensed, Permitted, and Inspected"

20. Target a Particular Type of Reader

Narrowing the headline to a specific person makes it more relevant — and relevance outperforms reach every time.

HVAC: "Attention Homeowners With Systems Over 10 Years Old: Read This"
Plumbing: "If You Own a Home Built Before 1990, Your Pipes May Need Attention"
Electrical: "Homeowners With Fuse Boxes: Here Is What You Need to Know"

21. Add a Time Element

Urgency is one of the most reliable conversion levers in advertising. A deadline or time reference moves people who were already interested but had not committed.

HVAC: "Book Before the Summer Rush — Schedule Your AC Tune-Up This Week"
Plumbing: "Same-Day Drain Clearing Available — Book Before 2pm"
Electrical: "Limited Slots This Month — Book Your Panel Inspection Before They Fill"

22. Stress Cost Savings or Value

Lead with what they save, not what they spend. Loss avoidance is more motivating than gain.

HVAC: "Stop Overpaying for Cooling — A Tune-Up Could Save $80+ a Month"
Plumbing: "A $99 Pipe Inspection Can Prevent a $4,000 Flood Damage Bill"
Electrical: "Cut Your Lighting Bill by 75% With an LED Upgrade"

23. Use a Reasons-Why Headline

Gives the reader a structured reason to read. The list format increases perceived credibility.

HVAC: "3 Reasons Your AC Is Costing More Than It Should This Summer"
Plumbing: "5 Reasons You Should Install a Water Softener Before Next Year"
Electrical: "7 Signs Your Home's Electrical Panel Needs an Upgrade"

24. Answer an Important Question

Particularly effective in search and content. Match the headline to a question the customer is already Googling.

HVAC: "Repair or Replace? How to Know Which One Actually Makes Financial Sense"
Plumbing: "How Do I Know If I Need a New Water Heater?"
Electrical: "What Does It Cost to Upgrade an Electrical Panel in [City]?"

25. Stress the Value of a Premium

Highlight a bonus or included feature that elevates the perceived value of the core offer.

HVAC: "Free Smart Thermostat With Every New System Installation"
Plumbing: "Free Water Quality Test With Any Plumbing Service Call"
Electrical: "Free Surge Protector Installed With Any Electrical Service"

26. Help the Reader Achieve a Goal

Position the service as the path to something the reader already wants — not a cost, but a means to an end.

HVAC: "Lower Your Energy Bills and Stay Comfortable All Year — Here's How"
Plumbing: "Protect Your Family's Health With a Whole-Home Water Filtration System"
Electrical: "Add Value to Your Home With a Modern Electrical Upgrade"

27. Make a Contradictory Statement or Promise

Say something that appears to contradict common sense. The tension forces the reader to stop. Use sparingly and make sure the logic holds.

HVAC: "The More You Run Your AC, the More You Could Be Saving — Here's Why"
Plumbing: "Better Skin, Softer Hair — Without Buying a Single Product"
Electrical: "Turn Off More Lights and Pay Less on Your Next Bill — Seriously"

How to Use These

Do not try all 27 at once. Pick three or four that match the specific problem your offer solves and your audience's stage of awareness. Run them as separate ads against the same audience. The headline that generates the lowest cost per result is the one you scale.

The headline formula does not replace a strong offer — it delivers the audience to it. Before writing a single headline, make sure the offer behind it is one clear, specific thing. For the data on why this matters, see our post on the One-Offer Rule.

27 Headline Formulas for Home Service Businesses (With Real Examples)