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What Is Responsive Search Ads and How Should Home Service Companies Use Them?

Quick Answer: Responsive Search Ads (RSAs) are Google's current standard ad format. You write up to 15 headlines and 4 descriptions, and Google automatically tests different combinations to find which ones perform best for your audience. For home service companies, RSAs work well when your headlines are specific, locally relevant, and focused on what customers actually care about — fast response, licensed techs, and real pricing.


If you've logged into Google Ads recently and noticed that the old 'Expanded Text Ads' are gone, you're not imagining things. Google killed them in June 2022. Responsive Search Ads are now the only standard text ad format available.


Which means whether you love them or hate them, you're using them. So you might as well use them right.


What Responsive Search Ads Actually Are

Old-school Google ads were simple: you wrote one fixed ad — three headlines, two descriptions — and that's what ran. Every search saw the same ad.


RSAs work differently. Instead of writing one ad, you give Google a menu of options:

  • Up to 15 different headlines (each 30 characters max)

  • Up to 4 different descriptions (each 90 characters max)


Google then mixes and matches those headlines and descriptions to create thousands of possible ad combinations, and shows each searcher the version it predicts will perform best.

Over time, Google's machine learning figures out which combinations get the most clicks and conversions, and shows those more often.


Think of it like a salesperson who knows 15 different ways to introduce themselves and figures out which opening works best with each type of customer. That's roughly what RSAs do — except at scale and automatically.


Why Google Made This Change

Honest answer: Google made RSAs the default because it gives them more control over how ads are assembled, and because the system theoretically performs better than a human writing one static ad.


The real-world results are more nuanced. RSAs can absolutely outperform manual ads — but only when advertisers write strong, varied headlines. Feed RSAs generic inputs like 'Call Us Today' and 'Trusted Plumbers,' and you'll get mediocre output regardless of how smart Google's algorithm is.


Garbage in, garbage out. That rule doesn't change just because a machine is involved.


How to Write RSA Headlines That Actually Work for Home Service Companies

This is where most home service companies drop the ball. They write 15 headlines that all basically say the same thing:

  • 24/7 Plumbing Service

  • Call Us Anytime

  • Available 24/7

  • We're Available Around the Clock


That's not 15 headlines. That's one idea written four different ways. Google's system needs real variety to test against.


Write Headlines Across These Categories

A strong RSA for a plumbing or HVAC company should include headlines covering:

  • The service itself — 'Emergency Drain Clearing,' 'Same-Day AC Repair,' 'Water Heater Installation'

  • Location — 'Plumbers in Indianapolis,' 'Serving Greater Rochester NY,' 'Licensed in [City]'

  • Speed and availability — '60-Minute Response Time,' 'Same-Day Appointments Available,' 'Emergency Service 24/7'

  • Trust signals — 'Licensed & Insured Plumbers,' '500+ 5-Star Reviews,' 'Family-Owned Since 1998'

  • Pricing transparency — 'Upfront Pricing, No Surprises,' 'Free Estimates on All Jobs,' 'Flat-Rate Service Calls'

  • Call to action — 'Call Now for Fast Service,' 'Get a Free Quote Today,' 'Book Online in 60 Seconds'


Mix those six categories across your 15 headlines and you're giving Google something real to work with. You're also covering the different reasons different customers might click — some care about speed, some about price, some about trust.


Use Pinning Strategically

One RSA feature worth knowing: you can 'pin' a headline to a specific position. Headline 1, Headline 2, and Headline 3 are the three slots Google shows. You can force a specific headline to always appear in position 1.


When to pin: If your business name or primary service is essential for context — like '[Company Name] — Indianapolis Plumbers' — pin that to position 1. Don't pin everything, though. Pinning multiple headlines defeats the purpose of RSAs by reducing the combinations Google can test.


Rule of thumb: pin only what absolutely must appear. Leave the rest flexible.


Real example: One HVAC company was pinning 8 out of 15 headlines. Their ad strength was 'Good' but performance was flat. We unpinned 5, added more varied headlines around price and speed, and saw a 22% improvement in conversion rate over 6 weeks. Let Google test.


Ad Strength: What It Means and What It Doesn't

When you write an RSA, Google gives you an 'Ad Strength' score: Poor, Average, Good, or Excellent. This score measures how many headlines you've written, how unique they are, and how well they incorporate your keywords.


Here's the important caveat: Ad Strength is not the same as performance. A 'Good' rated ad can absolutely outperform an 'Excellent' rated one. Ad Strength tells you whether you've given Google enough variety to work with — it doesn't tell you whether your messaging is compelling.


Use Ad Strength as a checklist, not a grade. If it's flagging that your headlines are too similar, that's worth fixing. Beyond that, trust your conversion data over the score.


RSA Performance: What to Measure

Once your RSAs have been running for at least 2-3 weeks, here's what to look at:

  • Conversion rate — of the people who clicked your ad, what % called or filled out a form? For home service companies, 8-15% is a realistic target.

  • Cost per conversion — what are you paying per lead? For plumbing and HVAC, $50-$150 is typical depending on your market and service.

  • Asset performance — in your RSA settings, Google shows each headline rated as 'Best,' 'Good,' or 'Low.' Replace 'Low' performers with something new.

  • Impression share — are your ads showing up for most of your target searches? Low impression share often means your budget is limiting reach.


Check your RSA asset report monthly. Swap out Low-rated headlines. You're not done when you publish an RSA — it's an ongoing optimization process.


Common RSA Mistakes Home Service Companies Make

  • Repeating the same idea in multiple headlines — 'Fast Service,' 'Quick Response,' 'We're Fast' don't give Google real variety

  • Ignoring location — for a local service business, at least 2-3 headlines should reference your service area specifically

  • Not including the keyword — Google rewards ads that include the search keyword in headlines. If you're targeting 'emergency plumber,' have at least one headline that says exactly that

  • Pinning too many headlines — kills the machine learning. Pin one at most

  • Never revisiting the ad — RSAs are not set-and-forget. Review asset performance monthly and replace weak headlines


FAQ: Responsive Search Ads for Home Service Companies

How many RSAs should I have per ad group?

Google recommends 2-3 RSAs per ad group. Having multiple RSAs lets you test different messaging angles against each other. But don't just create three nearly identical ads — each one should take a different approach. One might lead with speed, one with trust signals, one with pricing transparency.


Do RSAs work for small plumbing or HVAC companies?

Absolutely — and they can be a leveler. A well-written RSA from a 3-truck plumbing company can outperform a lazy RSA from a national franchise. The algorithm doesn't care about your company size. It cares about relevance and click-through rate. Write headlines that speak directly to your local customers and you'll compete.


What happened to Expanded Text Ads?

Google stopped allowing new Expanded Text Ads (ETAs) in June 2022 and removed the ability to edit existing ones. Any old ETAs that were already running continued to serve until early 2024, when Google fully transitioned to RSAs. If you still see data from old ETAs in your account history, that's why. Going forward, RSAs are your only option for standard search ads.


Should I include my phone number in the headline?

No — Google's policies don't allow phone numbers in ad text headlines. Instead, use call extensions (now called 'call assets') to display your phone number separately alongside the ad. This is actually better than putting the number in the headline because it shows up in a more visible format and tracks calls automatically.


My RSA has 'Excellent' ad strength but isn't converting. What's wrong?

Ad Strength measures structural variety, not persuasiveness. Your headlines might be unique and keyword-rich but not compelling to your specific audience. Review which assets Google rates as 'Low' — those are the weak links. Also check your landing page. An RSA that works perfectly can be killed by a landing page that loads slowly, doesn't have a visible phone number, or doesn't match the promise in the ad.


Ready to stop guessing where your leads come from? KaeRae Marketing handles Google Ads and local SEO exclusively for home service businesses — no contracts, no confusion, no runaround. Book a free consultation and find out exactly what's possible for your business.


Want to learn this stuff yourself? KaeRae Education has courses, resources, and a membership community built specifically for home service business owners. Visit KaeRaeEducation.com.

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