5 Google Ads Mistakes That Are Costing Tradies Money in Australia
Google Ads can be one of the most powerful tools for trade businesses. When someone types "emergency plumber near me" or "electrician Penrith" and your ad appears at the top — that's a hot lead who's ready to call right now.
But Google Ads can also be a money pit. Many tradies set up their campaigns, let them run, and watch their budget disappear without getting enough calls to justify it.
The difference is almost always execution. Here are the five mistakes that waste the most money — and how to fix each one.
Mistake 1: Bidding on Broad, Irrelevant Keywords
When you first set up Google Ads, the default match type for keywords is broad match. This means Google shows your ad for any search it thinks is remotely related to your keyword.
If you're a plumber and you bid on "plumber" with broad match, Google might show your ad for: - "plumber apprenticeship" - "plumber salary Australia" - "plumber tools" - "how to become a plumber"
None of these people are looking to hire you. But you're still paying for every click.
Fix: Use phrase match or exact match for your keywords. Phrase match targets "plumber near me", "emergency plumber", "blocked drain plumber" — searches that actually contain your phrase. Exact match is even more restrictive.
Also: use negative keywords. Add terms like "salary", "course", "apprenticeship", "DIY", "how to" as negative keywords so your ad never appears for those searches.
Mistake 2: Sending All Your Traffic to Your Homepage
You're running an ad that says "Emergency Plumber — Available 24/7 — Call Now". The customer clicks it and lands on your homepage, which has information about your whole business — residential, commercial, maintenance, etc.
The customer is confused. They were looking for an emergency plumber, not a company overview. So they hit back and call someone else.
Fix: Create a dedicated landing page for each campaign that matches the ad exactly.
- Ad about emergency plumbing → Landing page focused entirely on emergency plumbing, with your phone number prominent, a short pitch, and a "call now" button
- Ad about switchboard upgrades → Landing page all about switchboard upgrades, with photos of past work, what's included, and a quote request form
The message continuity from ad to landing page significantly improves conversion rates — meaning you get more calls from the same ad spend.
Mistake 3: Not Running Ads Only in Your Service Area
Google's default geo-targeting is surprisingly imprecise. Unless you've explicitly restricted your ads to your service area, you may be paying for clicks from suburbs you'd never service.
A plumber based in Parramatta doesn't want to pay for clicks from the Northern Beaches. An electrician in Geelong doesn't need leads from Melbourne CBD.
Fix: Set your location targeting to a specific radius around your base (e.g., 20km) or list the specific suburbs you service. In Google Ads, this is under "Locations" in the campaign settings.
Also set "Advanced Location Options" to "People in or regularly in your targeted location" — this prevents your ad showing to people who are searching about your area but are physically located elsewhere.
Mistake 4: Running Ads Around the Clock When You're Not Available
If you run ads 24/7 but your phone goes to voicemail after 6pm, you're paying for after-hours clicks from people who call and hang up when they hear voicemail. They call someone else. You've paid for the click but got no job.
Fix: Use ad scheduling to run your ads only during hours you can actually answer. If you work 7am-6pm Monday to Friday and 8am-12pm Saturday, set your ads to run only during those times.
The exception: if you genuinely offer 24/7 service and have a system to handle after-hours calls, run the ads around the clock. But if your after-hours response is a voicemail, you're better off saving that spend for times you can actually convert the call.
Mistake 5: Ignoring Your Quality Score and Ad Relevance
Google's Quality Score is a rating (1-10) it gives your ads based on expected click-through rate, ad relevance, and landing page experience. A high Quality Score means you pay less per click — a low one means you pay more.
Many tradies write generic ads that don't match their keywords closely, then send traffic to slow, generic landing pages. The result: low Quality Score, high cost per click, and poor results.
Fix: - Write ad copy that closely matches your target keyword. If the keyword is "blocked drain plumber Sydney", the ad headline should say "Blocked Drain Plumber Sydney" - Make sure your landing page mentions the keyword and delivers on what the ad promised - Test multiple ad variations to see which generates higher click-through rates - Check your Quality Scores in the Google Ads dashboard — anything below 6 needs attention
Better Quality Scores mean lower cost per click, which means more leads from the same budget.
The Bonus Mistake: Not Tracking Phone Call Conversions
You've spent $2,000 on Google Ads this month. How many calls did it generate? Which keywords drove the most calls? Which ones drove zero calls?
Without call tracking, you're flying completely blind. You can't optimise what you can't measure.
Fix: Set up Google Ads call extensions so your phone number appears in the ad. Then set up call tracking — either through Google Ads' built-in call reporting or a third-party tool like CallRail (which has Australian numbers).
Once you know which keywords and ads are generating calls, you can double down on what's working and cut what isn't.
Frequently Asked Questions
How much should a trade business spend on Google Ads in Australia? For a sole trader or small trade business, $30-$80/day is a meaningful starting budget that generates data and leads without excessive risk. For larger businesses in competitive markets, $150-$500/day may be required to compete. Always start lower, optimise, then scale what's working.
Should I manage my own Google Ads or hire an agency? If you're willing to learn the platform (there are good free resources from Google), managing your own gives you direct control and saves management fees. Agencies are worth it if you're spending $3,000+/month and don't have time to manage it — but choose carefully, as poorly managed agency campaigns waste just as much money as DIY mistakes.
How long does it take for Google Ads to start working? You'll start getting clicks immediately. But it takes 2-4 weeks of data to start optimising effectively. Give a new campaign at least a month before making major changes.
Are Google Ads better than Facebook Ads for tradies? For emergency or urgent services (blocked drains, broken glass, electrical faults), Google Ads are far better — people are actively searching for the solution. For building brand awareness or marketing planned renovations, Facebook can be effective. Most established trade businesses use both.
What's the single most important thing to get right in Google Ads? Negative keywords and call tracking. The negative keywords prevent wasted spend. The call tracking tells you what's actually working. Get these two right and you'll be ahead of 80% of trade businesses running Google Ads.