Writing Google Ads Copy That Actually Converts

You can have perfect targeting, optimal bidding, and excellent landing pages, but if your ad copy does not compel people to click, none of it matters.

Google Ads copy is a constrained art form. You have limited characters to attract attention, communicate value, qualify the right prospects, and prompt action. This guide shows you how.

Understanding Ad Formats

Before writing, understand what you are working with.

Responsive Search Ads

The standard format now. You provide:

• Up to 15 headlines (30 characters each)
• Up to 4 descriptions (90 characters each)

Google mixes and matches these to find the best-performing combinations. You must write multiple variations that work in any combination.

Headlines That Show

In practice, Google typically shows 2-3 headlines. Your headlines need to:

• Make sense individually
• Work together in any order
• Cover different angles

Description Rules

Usually 1-2 descriptions show, appearing below the headlines. They expand on the headline promises and prompt action.

The Core Principles

1. Match the Search Intent

Someone searching “emergency plumber Logan” has different needs than someone searching “bathroom renovation quotes.”

Emergency search → Emphasise speed, availability, urgency Research search → Emphasise quality, options, getting information

Your ad should echo what the searcher is looking for.

2. Qualify Your Audience

Not everyone who clicks should click. If you only serve certain areas or customers, say so:

• “Serving Brisbane Southside”
• “For Commercial Clients”
• “Starting from $X”

This prevents wasted clicks from people you cannot help.

3. Differentiate from Competitors

Searchers see multiple ads. Why click yours?

• Unique selling points (24/7 availability, guarantees, experience)
• Specific credentials (licensed, insured, certified)
• Social proof (years in business, number of customers)

4. Use Specific Numbers

Specific claims outperform vague ones:

• “15+ Years Experience” beats “Experienced”
• “Same Day Service” beats “Fast Service”
• “50+ 5-Star Reviews” beats “Great Reviews”

5. Include Keywords

Including the search term (or variations) in your ad—something you discover through keyword research:

• Improves Quality Score (lower costs)
• Shows relevance (higher click-through)
• Meets expectations

Use dynamic keyword insertion sparingly; it can create awkward results.

Headline Formulas

Here are proven headline structures:

[Service] + [Location]

“Emergency Plumber Logan” “SEO Services Brisbane”

[Benefit] + [Service]

“Same Day Hot Water Repair” “Rank Higher with Expert SEO”

[Credential] + [Service]

“Licensed Electricians” “25 Years Digital Marketing”

Call to Action

“Get Your Free Quote Today” “Book Online Now”

Differentiator

“No Call Out Fee” “24/7 Emergency Service” “Locally Owned Since 2001”

Question Headlines

“Need a Plumber Fast?” “Tired of SEO Agencies?”

Description Formulas

Problem-Solution-Action

“Burst pipe flooding your home? Our licensed plumbers arrive within 60 minutes, any time day or night. Call now for emergency service.”

Features-Benefits-CTA

“AI-powered websites built on modern technology. Load faster, rank higher, convert more visitors. Get a free proposal today.”

Social Proof-Offer-CTA

“Trusted by 200+ Brisbane businesses. See why they chose us for their digital marketing. Book your free strategy call.”

Objection-Answer-CTA

“No lock-in contracts, no hidden fees. Just results-focused digital marketing that earns your business every month. Learn more.”

Writing for Responsive Search Ads

Since Google mixes your headlines, follow these rules:

Write Complete Headlines

Each headline should make sense alone. Avoid headlines that require other headlines to be understood.

Bad: “That’s Why” (makes no sense alone) Good: “Fast Response Guaranteed” (complete thought)

Cover Multiple Angles

Use your 15 headline slots to cover:

• Service/product (what you offer)
• Location (where you serve)
• Benefits (why choose you)
• Credentials (why trust you)
• CTAs (what to do next)
• Offers (incentives to act)

Vary Your Descriptions

If you have 4 description slots, make them genuinely different:

• One focused on features
• One focused on benefits
• One focused on credibility
• One focused on urgency/offer

Pin Important Headlines

You can pin headlines to specific positions. Pin your most important message to position 1 to ensure it shows.

Use pinning sparingly—it limits Google’s optimisation ability.

Industry-Specific Examples

Trades (Plumber Example)

Headlines:

• Emergency Plumber Logan
• Available 24/7
• Licensed & Insured
• Same Day Service
• No Call Out Fee
• 15+ Years Experience
• Get a Fast Quote
• Call Now
• Local Logan Plumbers
• Fixed Price Quotes

Descriptions:

• Burst pipes, blocked drains, hot water failures. Our licensed plumbers respond within 60 minutes across Logan. Call for same-day service.
• Family-owned and serving Logan for 15 years. Fair pricing, quality work, and cleanup included. Get your obligation-free quote today.

Professional Services (Accountant Example)

Headlines:

• Brisbane Business Accountants
• Tax Return Specialists
• Free Initial Consultation
• Reduce Your Tax Bill
• Small Business Experts
• Fixed Fee Services
• MYOB & Xero Partners
• Lodge Your Tax Return

Descriptions:

• Small business accountants who understand your challenges. Tax planning, compliance, and advice that helps you keep more of what you earn.
• Proactive tax strategies, not just compliance. We help Brisbane businesses minimise tax legally. Book your free consultation today.

Healthcare (Dentist Example)

Headlines:

• Family Dentist Logan
• New Patients Welcome
• Emergency Dental Care
• Gentle & Caring Team
• Modern Practice
• Book Online Now
• After Hours Available

Descriptions:

• Comprehensive dental care for the whole family in a comfortable, modern practice. New patients welcome—book your checkup online today.
• Dental emergency? We offer same-day appointments for pain relief. Call our Logan practice now or book online for fast care.

Testing Your Ad Copy

Write multiple variations and let Google test them:

Set up properly:

• Use “Optimize” as your ad rotation setting
• Provide genuinely different options (not minor tweaks)
• Include enough headlines and descriptions

Monitor performance:

• Check which combinations show most often
• Review individual asset performance
• Note click-through rates on different messages

Iterate:

• Replace poor performers
• Develop new variations based on winners
• Test new angles and messages

Common Mistakes

Too Generic

“Quality Service at Great Prices”—this says nothing specific. Every competitor could claim the same.

Better: “15 Years Serving Logan | Same Day Service | Licensed & Insured”

No Call to Action

Ads without CTAs leave people wondering what to do next.

Include: “Get a Free Quote,” “Book Online,” “Call Now”

Misleading Claims

Promising things you cannot deliver creates bad expectations and wasted clicks. If you do not offer free consultations, do not advertise them.

Keyword Stuffing

“Brisbane Plumber | Plumber Brisbane | Brisbane Plumbing Services”—this looks spammy and wastes headline slots.

Ignoring Mobile

Over half of searches are mobile. Long, complex messages get truncated. Keep critical information early.

Not Testing

Running the same ads forever means missing improvement opportunities. Regularly test new variations.

Ad Extensions Amplify Copy

Extensions expand your ad’s presence and provide additional information:

Sitelinks: Links to specific pages Callouts: Short benefit statements Structured snippets: Lists of services or products Call extensions: Phone number for direct calling Location extensions: Address and map

Good extensions complement your main ad copy and give more reasons to click.

Measuring Success

Track these metrics for ad copy performance:

Click-through rate (CTR): Higher CTR indicates compelling ads Conversion rate: Clicks that become leads/sales Quality Score: Google’s rating affects costs and position Asset performance: How individual headlines/descriptions perform

High CTR with low conversion might mean your ads attract the wrong people. Low CTR might mean your copy does not stand out.

Optimise for conversions, not just clicks.

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Want help writing ads that convert? Platform21 manages Google Ads campaigns for South East Queensland businesses, including ad copy that attracts qualified leads. Get in touch or explore our Google Ads management to improve your campaigns.

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