The Honest Truth About Tradie Google Ads
Over the past 18 months, we've audited more than 40 Google Ads accounts belonging to tradies and construction businesses across New Zealand. The results were eye-opening — and in many cases, genuinely alarming.
On average, these accounts were wasting 62% of their monthly ad budget on clicks that could never convert into customers. That means a tradie spending $1,500/month on Google Ads was effectively flushing $930 down the drain every single month.
The frustrating part? These mistakes are all fixable. Many of them can be corrected in an afternoon. Here are the five most common and most expensive mistakes we see — and exactly what to do about them.
Mistake 1: Using Broad Match Keywords Without Controls
This is the single most expensive mistake in tradie Google Ads accounts. When you add a keyword like "plumber" as a broad match keyword, Google will show your ad for searches like "plumber salary NZ," "how to become a plumber," "plumber jokes," and hundreds of other completely irrelevant queries.
We audited one Auckland plumbing company that had spent $3,200 in a single month on clicks from people searching for plumbing apprenticeship information, plumbing DIY guides, and even plumbing supply stores — none of which would ever call a plumber for a job.
The fix: Switch to phrase match ("[plumber Auckland]") or exact match ("[emergency plumber Auckland]") keywords. This ensures your ads only show for searches closely related to your actual services. Also build a comprehensive negative keyword list (words like "DIY," "how to," "apprentice," "jobs," "salary," "cheap," "free").
Mistake 2: No Location Targeting (Or Wrong Location Targeting)
Most tradies operate within a specific geographic area — yet many of the accounts we audit are either showing ads nationally or using location targeting settings that include people who are "interested in" a location rather than physically present there.
We found a Waikato electrical company whose ads were appearing for searches in Wellington, Otago, and Northland — regions where they had absolutely no coverage. Approximately 38% of their monthly ad spend was reaching people they couldn't possibly serve.
The fix: Set your location targeting to your actual service area (specific suburbs, a radius around your base, or your target regions). In your location settings, select "Presence: People in or regularly in your targeted locations" — not the default which includes people "interested in" those locations. This alone can eliminate 20–40% of wasted spend for most tradies.
Mistake 3: Running Ads When Your Phones Are Off
This one sounds obvious when you say it out loud, but the majority of tradie accounts we audit run their ads 24/7 — including 2am on Sunday morning when nobody is available to answer the phone or respond to an enquiry for 36+ hours.
Here's the problem: consumers who enquire at 2am and don't hear back quickly will simply enquire with your competitor who does respond promptly. You have paid for a lead that you then fail to convert because of timing.
The fix: Use ad scheduling (also called dayparting) to run your ads primarily during hours when you can respond quickly. For most tradies, this means Monday–Friday 7am–7pm and Saturday 8am–2pm. You can still run ads at other times but reduce your bids significantly during unresponsive hours. Pair this with an AI chatbot on your website to capture leads outside of hours — the chatbot can answer questions and book callbacks.
Mistake 4: Sending Traffic to Your Homepage
Your homepage is designed to tell your whole story — who you are, all your services, your about page, your gallery. It's not designed to convert a single specific search intent into a phone call or form submission.
When someone searches "emergency plumber Auckland" and lands on your homepage, they have to work to find the information they need. Every additional step between clicking your ad and calling you loses a percentage of potential customers. The average conversion rate for tradie homepages is 1.8%. Dedicated landing pages convert at 6–12%.
The fix: Create a dedicated landing page for each major service and ad campaign. If you're advertising emergency plumbing, your landing page should lead with "24/7 Emergency Plumber Auckland," have your phone number prominent and clickable, include 3–5 recent reviews, and have a simple form. Remove all navigation that leads people away from converting.
Mistake 5: Not Tracking Phone Calls
Ask most tradies "how many calls did your Google Ads generate last month?" and they'll have no idea. This is a massive problem because without call tracking, you're flying blind — you can't tell which keywords, which ads, or which devices are generating actual enquiries versus which are burning money.
In one account we audited, the account manager had been pausing keywords that were "underperforming" based on conversion data. What they didn't realise was that those keywords were generating 15+ phone calls per month that weren't being tracked. They had effectively been turning off their best performers.
The fix: Enable Google Ads call tracking using Google forwarding numbers, or use a third-party call tracking platform. Make sure calls of 60+ seconds are counted as conversions. This gives you the full picture of which parts of your campaign are actually generating business, not just clicks.
The Bottom Line
Google Ads is one of the most powerful lead generation tools available to tradies in New Zealand — when it's set up and managed correctly. The problem is that the platform is complex enough that common mistakes are easy to make and hard to spot without experience.
If you're currently running Google Ads and not tracking your ROI, getting leads that seem expensive, or just not sure if your campaigns are performing, a professional audit is the first step. At NEXTXEN, we offer free Google Ads audits for NZ trade businesses — we'll review your account and give you a detailed breakdown of what's working, what's wasting money, and exactly what changes to make.