Quick answer

A responsive search ad lets you supply up to 15 headlines and 4 descriptions, and Google Ads assembles combinations. For a service business, write headlines by role (service, place, action, reassurance, availability and a differentiator), keep each one honest and different from the others, pin only where a legal or brand line must always appear, and treat ad strength as a hint rather than a goal. Review the asset report monthly and replace the weakest lines with new tests.

Why responsive ads feel strange to service owners

Traditional text ads were a fixed message. You chose a headline, a second headline and a description, and that exact text appeared. A responsive search ad is a set of parts. Google Ads says it assembles combinations of your headlines and descriptions, shows them in different orders, and learns over time which combinations fit different searches. For a plumber or a clinic that wants one message, that can feel like losing control.

The practical answer is to treat the ad as a small library. Every line you add must be good enough to appear next to any other line, and the library must cover the questions a searcher has in the few seconds they look at the result: Do you do this? Do you work where I am? How do I contact you? Why you?

What Google allows, from the Help Center

These limits come from Google Ads Help, checked on 2 November 2026. Interfaces and limits change, so confirm them in your account before you build a template.

ItemLimitWhat it means for you
HeadlinesUp to 15; at least 3 requiredUse most of the slots so the system has real choices
DescriptionsUp to 4; at least 2 requiredWrite four that each carry one distinct job
Headline length30 charactersShort lines; put long keywords in descriptions instead
Description length90 charactersOne sentence with a clear next step
Path fields15 characters eachShow the service and place in the display URL
PinningPossible per positionReduces combinations; use sparingly
Ad strengthRated from Poor to ExcellentA hint about variety, not a measure of leads

Google also notes that Headline 1 and Description 1 usually appear, while the other positions appear depending on predicted performance and available space. Do not rely on a line in the later positions being visible.

The six-role framework for 15 headlines

Start from roles rather than from keywords. A set that contains five ways of saying the service name will pass a quick glance and give the system little to learn from. We use six roles for service businesses.

  • Service: what you do, in the words customers use. Three or four variations: the plain name, a specific type and a problem phrase.
  • Place: the city, district or the phrase home visits. Only name areas you really serve.
  • Action: what the person should do next: call, message on WhatsApp, request a quote, book a visit.
  • Reassurance: something that lowers risk and is true: a clear quote process, a fabric check before work, a written scope.
  • Availability: evening or weekend slots, only if your schedule really supports them.
  • Differentiator: one fact that sets you apart, such as bilingual support or a specialist service. Do not use words such as best or number one unless you can substantiate them.

A worked example (hypothetical business, not a client)

Imagine a sofa and carpet cleaning company serving homes in Dubai. The lines below are invented to show how the roles work. Character counts are computed so you can see how tight 30 characters is. Use a line like these only if it is true for your own business.

#HeadlineCharactersRole
1Sofa Cleaning in Dubai22Service
2Carpet & Sofa Deep Cleaning27Service
3Book a Visit on WhatsApp24Action
4Ask for a Clear Quote21Action
5Home Visits Across Dubai24Place
6Fabric Checked Before Work26Reassurance
7Call Us Now11Action
8Evening Slots Available23Availability
9Pet Stain & Odour Cleaning26Service
10Transparent Pricing Guide25Reassurance
11Apartments & Villas Served26Place
12Message Us Your Sofa Photo26Action
13Residential Sofa Cleaning25Service
14Weekend Appointments20Availability
15Arabic & English Support24Reassurance

The four descriptions each do a different job. The first invites a WhatsApp photo and promises a reply with a quote. The second explains the home visit and the fabric check. The third covers problem types such as pet stains and odours. The fourth sets expectations about slots: availability depends on the schedule, so the line asks the customer to message and check. None promises a time, a price or a result.

  • Send a photo of your sofa or carpet on WhatsApp and we will reply with a clear quote. (85 characters)
  • Home visits across Dubai. We check the fabric first and explain the method before work. (87 characters)
  • Pet stains, odours and everyday dirt on sofas and carpets. Ask what suits your fabric. (86 characters)
  • Morning, evening and weekend slots depend on availability. Message us to check. (79 characters)

Notice what is absent: no discount, no superlatives, no claim of years in business. If you have a real licence, a documented warranty or a verifiable rating, add a proof line. If you do not, leave the slot for another useful action or reassurance line.

Pinning: when it helps and when it hurts

Google's guidance is that pinning is not recommended for most advertisers because it reduces the combinations available and can affect ad strength. Assets pinned to Headline 1, Headline 2 or Description 1 always show. Assets pinned to Headline 3 or Description 2 are not guaranteed to show. If you pin every position, unpinned assets will not appear. A sensible approach is to pin two or three different assets to a position, not just one, so there is still choice.

SituationPin?How
A regulated phrase must appear in every adYesPin the required line to one position, and keep it short
You want the city in the first headline for local relevanceMaybePin two or three variants that include the place to Headline 1
A brand name should always showMaybeOften better handled by a brand campaign than by pinning
You are afraid Google will pick weaker linesNoDelete the weak lines instead of pinning around them
You are running a time-limited offerYes, temporarilyPin the offer line and remove the pin when the offer ends

Whenever you pin, check the ad preview to confirm the wording still makes sense when different lines combine. A headline that ends with a question mark followed by a headline that starts a new sentence reads badly. Write headlines so that any two can sit side by side.

Ad strength is a signal, not the goal

Ad strength rates how well an ad follows variety and relevance practices, from Poor to Excellent. Google recommends having at least two responsive search ads per ad group with Good or Excellent strength. Use the rating to find obvious gaps such as too few headlines or repeated text. Do not stuff an ad with filler to reach Excellent. A set of 15 repetitive lines can still produce a worse enquiry than a set of 10 honest ones. Judge the ad by what happens after the click: qualified calls, WhatsApp conversations and booked jobs. The quality score article explains how ad relevance fits in, and our call quality scoring guide shows how to rate the enquiries ads actually deliver.

Match the ad to the type of search

Urgent and planned searches need different ad libraries, which is another reason to keep ad groups tight, as in our account structure guide.

Search typeLead withAvoid
Urgent, for example a leak or a broken applianceAction and availability: call now, visit today if slots allowLong explanations and discount language
Planned, for example a renovation or a contractService detail, process and a quote routeOnly urgency words
Comparison, for example type A versus type BSpecific differentiator and a guide or consultationGeneric claims
Price, for example how much does it costA clear pricing explanation and a quote routeHiding that price depends on the job

For emergency-type services, a phone-first design may fit better; see our call-only ads guide. Where Google suggests automatically created assets or broader matching features, read our note on AI Max for service businesses before accepting them blindly.

Arabic and English

Do not translate headlines word for word. Arabic searchers phrase the same need differently, and character counts behave differently across scripts. Keep separate ad groups or campaigns by language when volume allows, and send each to a landing page in the same language. Our article on Arabic and English Google Ads in the UAE covers the structure.

A monthly routine for improving ads

  1. Open the asset report for each campaign and list the lowest-performing headlines and descriptions that have had enough impressions to judge.
  2. Check search terms for the ad group; if the wrong searches are arriving, fix keywords and negatives before changing copy. See negative keywords.
  3. Replace the weakest two or three assets with new ideas in the same role. Change a few lines at a time so you can see what moved.
  4. Look at conversion quality, not just click-through rate. A headline that attracts curious clicks can lower lead quality.
  5. Keep a one-page log: date, line removed, line added, reason. Without it you will repeat old tests.
  6. Make sure the landing page repeats the promise in the ad. Our landing page guide shows how.

Common mistakes

  • Writing five near-identical headlines about the service name and nothing about next steps.
  • Pinning every position, which turns the responsive ad back into a fixed ad with fewer options.
  • Claiming speed, price or rank that the business cannot meet on every job.
  • Using one ad set for urgent and planned searches in the same ad group.
  • Judging by ad strength alone without reading the leads.
  • Forgetting the display path, which is free space to show the service and place.

How we work at ZED

In our Google Ads work we write ads from the customer's question, keep the promise consistent with the landing page and review assets monthly alongside the lead log. Our published AC services case study shows the type of local-service account we run. Before any change, we also look at the account audit checklist to confirm that the basics are in place.

Checklist before you publish an ad

  • At least 10 headlines and all 4 descriptions are written, each within the character limits.
  • Every headline would still read well next to any other.
  • Each of the six roles has at least one line, and every claim is true and provable.
  • Any pinned asset has a documented reason and at least one alternative in the same position.
  • The display path shows the service and place.
  • The landing page says the same thing as the ad.
  • Tracking is working for calls and WhatsApp before the ad goes live.

Frequently asked questions

How many headlines should a service business write?

Use as many of the 15 slots as you can fill with distinct, honest lines. Google requires at least 3, but more variety gives the system more combinations to test. Do not add filler to hit the number.

Should I pin my best headline?

Usually no. Pinning reduces combinations and can lower ad strength, which Google notes in its guidance. Pin only a line that must always appear, and preferably give each pinned position two or three options.

Does ad strength affect leads?

Ad strength is a rating of variety and relevance practices. It is a useful hint, but it does not measure the quality of your enquiries. Judge success by qualified calls and WhatsApp conversations.

How often should I change my ads?

Review assets monthly and replace a few weak lines at a time. Changing everything at once makes it impossible to learn what worked.

Can I put a phone number or WhatsApp in a headline?

Use call and message assets or extensions for contact details, and keep headlines for the message. Follow Google Ads policies on what text and symbols are allowed in ads.

Should Arabic and English ads be separate?

In most accounts, yes. Searchers phrase needs differently and the landing page should match the language. Start with separate ad groups or campaigns when you have enough volume.

Can I use the keyword in every headline?

Include the main phrase in some headlines for relevance, but vary the rest. If a keyword is longer than 30 characters, Google suggests placing it in a description rather than a headline.

Get your headline set reviewed

Send a screenshot of your current ads and the search terms they appear for. We reply with the first lines we would replace and no promise of results.

Send my ads to ZED Call 01097079170