The reason most tradies hesitate on Google Ads isn’t that they don’t want more leads. It’s that they don’t understand what it will cost, and the last thing they want is to throw money at something and get nothing back.
That’s fair. And it’s exactly why this article exists.
The good news: you don’t need to guess. There are real benchmarks, real starting budgets, and real cost-per-lead figures for different trades in Australia. Once you understand those numbers, the mystery disappears and you can make an actual decision based on facts instead of fear.
How Google Ads Actually Charges You
Google Ads doesn’t work like a monthly subscription where you pay a flat rate regardless of performance. You only pay when someone clicks your ad. That’s called the CPC model: cost per click.
Here’s how it works. You set a daily budget (say, $50 a day). When someone searching on Google sees your ad and clicks it, you pay a certain amount per click (let’s call it $3, but it varies by trade and location). That amount comes out of your budget.
If your daily budget is $50 and your average cost per click is $5, you’ll get roughly 10 clicks per day. Multiply that across 20 working days a month and you’re looking at 200 clicks for a $1,000 spend. Not all those clicks become leads, and not all leads become jobs. But the math is straightforward: clicks drive your cost, not hidden fees or surprise charges.
The cost per click depends on several things we’ll get into later. For now, just understand: Google auctions your ads based on bid amount and quality score. Higher bids and better relevance mean more visibility. The amount you pay per click reflects what you bid and how competitive the auction is.
Average CPC by Trade Type in Australia
Real benchmark data is the fastest way to understand what you’ll actually spend. Below are realistic cost-per-click figures for home service trades in Australian markets. These are based on WordStream’s industry benchmarks and observed patterns in competitive Australian locations.
| Trade | Average CPC (AUD) | Notes |
|---|---|---|
| Pool & Spa Installation | $3.00 – $4.50 | Lower competition in many regions |
| Pest Control | $4.00 – $6.00 | Varies widely by region; urgent-need trade |
| Plumbing | $6.00 – $10.00 | Highly competitive in metro areas |
| Electrical | $7.00 – $11.00 | Broad search intent; competitive |
| Roofing & Guttering | $8.00 – $15.00 | High-value jobs attract competition |
| Bathroom Renovations | $7.00 – $13.00 | Consideration-stage; longer sales cycle |
| Kitchen Renovations | $9.00 – $16.00 | Premium category; high buyer value |
| Window & Door Installation | $5.00 – $9.00 | Seasonal demand spikes |
| Landscaping | $4.50 – $7.50 | Lower average job value |
| HVAC / Air Conditioning | $6.00 – $12.00 | Seasonal variation; competitive |
Why the range? Cost per click within the same trade varies significantly based on location (Sydney’s inner suburbs cost more than regional areas), competition (how many other tradies are bidding), and quality score (how relevant Google thinks your ads are to the search).
What’s a Realistic Monthly Budget to Start?
Most home service businesses in competitive Australian markets should budget between $1,000 and $2,500 per month as a starting point.
Why that range?
A $500/month budget sounds appealing until you work backwards. At $5 per click average, that’s only 100 clicks. Spread across a month with 20 working days, that’s 5 clicks per day. For most trades, that’s not enough volume to generate reliable data, which means you can’t optimise properly and the campaign drags its feet.
Below $1,000/month, you’re fighting an uphill battle in most markets. The data is sparse, daily budgets are thin, and you struggle to compete when others are bidding more.
At $1,000/month, you’ve got breathing room. That’s roughly 200 clicks in a competitive market, or 10 clicks per day. Enough to start seeing patterns, enough to identify which keywords work and which don’t, and enough to have at least a few opportunities to convert.
$2,500/month is a solid aggressive starting point in competitive metros like Sydney or Melbourne. It gives you genuine campaign volume and the ability to test different keyword areas and landing pages simultaneously.
Some tradies start smaller and that’s fine if you understand the limitations. Others ramp it higher if they’re aggressive about growth. The key is matching your budget to the market you’re in and your timeline to profitability.
What Should Your Cost Per Lead Actually Be?
Cost per click and cost per lead are different things. A click is traffic to your website. A lead is an actual enquiry, call, or form submission. Not every click becomes a lead.
A typical home service business converts 5 to 15% of Google Ads clicks into actual leads, depending on:
- How relevant your landing page is to the search
- How clear your call-to-action is
- Whether your phone number is visible above the fold
- How well your site loads on mobile
- How much trust signals (reviews, testimonials, credentials) are visible
If your cost per click is $5 and you convert 10% of clicks into leads, your cost per lead is roughly $50.
Here’s what that looks like in practice for different trades:
| Trade | Target CPL (AUD) |
|---|---|
| Pest Control | $30 – $60 |
| Pool & Spa | $40 – $80 |
| Plumbing | $60 – $100 |
| Electrical | $70 – $120 |
| Roofing | $100 – $180 |
| Kitchen Renovation | $120 – $220 |
| Bathroom Renovation | $100 – $200 |
But here’s the important part: These are benchmarks, not targets. What matters is whether your cost per lead makes sense for your average job value. A $100 cost per lead is phenomenal if your average kitchen reno is $15,000. It’s a disaster if you’re a handyman doing $800 jobs.
The real question: what’s your profit margin on a typical job? If your profit margin is 30% and your average job is $10,000, you can afford a cost per lead up to about $200 because you’ve got $3,000 in profit to work with. Spending $50 per lead is obviously sensible in that case.
What Affects Your Costs (And How to Improve Them)
Several factors push your cost per click up or down. Some you control. Others you don’t. Understanding the difference is crucial.
Quality Score is the biggest lever you control. Google rates your ads, landing page, and account history on a scale of 1-10. A Quality Score of 8+ typically means your click costs are 40-50% lower than someone with a Quality Score of 4. How do you improve it? Relevant keywords in your ad copy, a landing page that’s obviously relevant to the search, and a history of good account performance.
Competition in your location is something you can’t directly control. If you operate in a small regional town with two other plumbers, click costs are lower. If you’re in Sydney’s inner west with 100 plumbers competing, costs are higher. The solution isn’t to accept higher costs, it’s to compete smarter with better targeting or better ads.
Your bid amount determines how visible you are. Higher bid, more visible position, more clicks. But you shouldn’t be chasing visibility for visibility’s sake. You bid enough to get in front of the right people at a cost per lead that makes sense.
Geographic targeting affects volume and cost. Targeting a single suburb will cost more per click than a wider area because you’re competing for a smaller pool of searches. But the people are more likely to be a fit. It’s about efficiency, not just cost.
Time-of-day adjustments can improve your efficiency. If most of your Google Ads leads come in during business hours, why bid the same amount for clicks after 6pm? Adjusting your bids up during peak times and down during slow times improves your overall return without increasing your total budget.
Landing page quality directly impacts cost per click. Google rewards relevance. If someone searches “kitchen renovation Sydney” and lands on a page specifically about kitchen renovations in Sydney, Google charges you less per click than if they land on a generic homepage. Google’s Quality Score documentation explains this in depth.
The Reality of Month One
Be prepared for month one to be the most expensive period of your campaign.
Google’s algorithm is still learning. Your account has no performance history to inform its decisions. Your negative keyword list (searches you don’t want to show up for) doesn’t exist yet. Your ads haven’t been tested and refined.
A realistic cost per lead in month one might be 30-50% higher than it settles to by month three. That’s not failure. That’s the normal cost of generating the data you need to optimise.
This is why budget matters. A $500/month budget might spend out in 10 days in an expensive market. You get 60 clicks, maybe 6 leads, and nowhere near enough data to improve anything. A $1,500/month budget gets you 300 clicks and 30 potential leads, which is enough volume to start identifying patterns.
Is It Worth It? The Honest ROI Picture
Google Ads isn’t for every trade, and it’s not worth it at every stage of your business.
If you’re a one-person operation with 100% of your time booked out and a three-month waiting list, Google Ads is probably wasting your money. You’re not capacity-constrained, so why pay for leads you can’t service?
If you’ve got capacity and a decent profit margin per job, Google Ads usually pencils out. A $1,500/month investment that generates 20-30 qualified leads, of which you close 3-5 into jobs averaging $5,000+ in profit each, is a straightforward win.
The catch is the optimisation timeline. You need to commit to at least three months to know if a campaign is actually working or if it just needs proper refinement. The businesses that bail at month two, right before a campaign turns a corner, are the ones who waste money on Google Ads.
One more thing: Google Ads works better when your website is solid. A slow site, a broken conversion process, or unclear messaging kills even good campaigns. If you’re running ads but your site isn’t ranking on Google organically and isn’t converting, fix those problems first. A well-built website reduces your ad costs and makes the entire funnel more efficient.
What Affects Your Timeline to Profitability
Three factors determine how quickly your Google Ads campaign becomes profitable:
1. Your average job value. Higher-value jobs mean a higher cost per lead is acceptable. A kitchen renovation at $20,000 profit justifies a higher cost per lead than a $2,000 service.
2. Your follow-up speed. A missed call from a Google Ads lead is a wasted click. The fastest responders win. Same-day callback for phone leads, same-hour response for form submissions. Slow follow-up drags everything down.
3. Your team’s sales ability. Google Ads brings interested people to you. Closing them into jobs is on you. A team with solid sales skills and a systematic follow-up process will get more jobs from the same ad spend than a team that wings it.
Get these three right and you’re profitable by month two or early month three. Get them wrong and you’ll spend more than you should without seeing the returns.
A Real Example
Let’s work through a concrete example. Say you’re a bathroom renovation specialist in Melbourne with an average job value of $12,000 and a 25% profit margin. Here’s how the numbers might look:
- Monthly budget: $1,500
- Average CPC: $7 (bathroom renos in competitive metro)
- Monthly clicks: ~215
- Conversion rate: 8% (your landing page is decent)
- Monthly leads: ~17
- Close rate: 20% (your sales are solid)
- Monthly jobs: ~3-4
- Revenue from Google Ads: $36,000 – $48,000
- Profit: $9,000 – $12,000
- Return on ad spend: 6:1 to 8:1
At that return, $1,500/month is one of the best investments you can make. You break even by mid-month and pocket $7,500+ in profit for the rest of the month.
But if your conversion rate is 2% instead of 8%, or your close rate is 5% instead of 20%, the numbers look completely different. Same budget. Same CPC. Totally different outcome.
This is why a proper setup and active management matter. The difference between a well-run campaign and a lazy one is often a 3-5x swing in profitability.
Frequently Asked Questions
What’s the minimum budget to make Google Ads worth trying?
$1,000/month is the practical minimum for most home service trades in Australian markets. Below that, you don’t generate enough data to optimise properly. You can try $500/month to test if Google Ads works for your specific situation, but don’t expect great results.
Can I pause my campaign and restart it later?
Yes. One of the beauties of Google Ads is flexibility. You can pause campaigns seasonally or when you’re too busy, and restart them when you want more leads. You don’t lose your data or account history. A campaign you ran six months ago and paused will pick up again better than it started because the account has history.
Does location matter that much for cost per click?
Massively. A plumber in Dubbo has a much lower cost per click than a plumber in Sydney’s inner west. Same trade, completely different auction competition. If you operate across multiple locations, expect to see significant variation. Some areas might be 2-3x more expensive than others.
What’s the difference between Google Ads and Local Services Ads?
Google Ads (search ads) shows up above the organic results when someone searches. You pay per click. Local Services Ads (LSAs) show up at the very top with a Google Guaranteed badge and you pay per lead, not per click. LSAs are good for urgent-need trades like plumbing or pest control. Google Ads give you more control and are often cheaper for longer-consideration trades like renovations. Read the full comparison here.
Should I start with a small budget to test, or go bigger?
Start with enough budget to generate real data. That usually means $1,000-$1,500 minimum. A $300/month test won’t generate enough information to tell you whether Google Ads actually works for your business or whether the setup was just weak. Once you’ve got one month of data and you can see the cost per lead trajectory, you can decide whether to scale up, maintain, or stop.
How do I know if I’m spending too much?
Check your cost per lead against your average job value and profit margin. If your cost per lead is 5-10% of your average profit per job, you’re in good shape. If it’s 25%+ of your average profit, either your campaigns need optimisation or Google Ads might not be right for your business model right now.
The Bottom Line
Google Ads isn’t a mystery. Budget between $1,000 and $2,500 per month. Expect a cost per click of $4-15 depending on your trade. Plan for a cost per lead of $30-150+ depending on your website’s conversion rate. Commit to three months minimum so you can optimise properly. Make sure your website actually converts visitors into leads.
Do those things and Google Ads becomes a predictable, profitable lead channel. Skimp on budget, expect instant results, or neglect your website conversion and you’ll waste money.
The businesses that get good returns from Google Ads are the ones that understand what they’re paying for and why, stay the course through month one, and actively manage the campaign rather than set-and-forget it.
If you’re running Google Ads right now and not sure how your spend stacks up, we offer a free Ads Report where we look at your actual account and tell you what’s working, what isn’t, and what would move the needle most.
Or if you want to figure out whether Google Ads is even the right move for your situation first, book a free consultation.
Frequently Asked Questions (5 More)
Is Google Ads more expensive now than it used to be?
Click costs generally increase year on year because more businesses are competing. What cost $3 per click five years ago might cost $5 today. The trend is usually upward. This is another reason to invest in SEO or Google Maps — they don’t escalate the same way ads do.
What happens to my cost per lead if I improve my Quality Score?
Improving from a Quality Score of 4 to an 8 typically cuts your cost per click by 40-50%. That directly flows through to a lower cost per lead. It’s one of the highest-ROI things you can do in your campaigns. Focus on relevant keywords in your ads and a landing page that actually matches the search.
Should I be concerned about seasonal changes in my cost per click?
Absolutely. Peak seasons (like pest control before summer or air conditioning before summer) see higher auction competition and higher click costs. Off-season CPCs drop. If you can, adjust your budget to match. More spend when CPCs are lower (off-season, if you can capture demand), less spend when CPCs are highest (peak season, when you’re probably busier anyway).
Can I ever reduce my Google Ads cost to zero?
Only by stopping the campaign. Google Ads costs money by definition — it’s a pay-per-click model. If you want free traffic, you need organic SEO or Google Maps. Google Ads is a paid channel, and that’s the trade-off for speed and control.
What if I want to run Google Ads but my website isn’t ready yet?
Don’t. A weak website kills good campaigns. Before you start Google Ads, make sure your site loads fast, displays well on mobile, has a clear phone number above the fold, and gives people an obvious next step. If your site looks like it was built in 2015, build a better one first or you’re just throwing clicks at a conversion problem.
Short Version
Google Ads costs vary by trade and location, but expect $4-15 per click for most Australian home services. Budget $1,000-$2,500 monthly to generate enough data. Your cost per lead will be higher in month one, then improve as you optimise. Whether it’s worth it depends on your average job value, follow-up speed, and website conversion rate. Three-month commitment minimum. Check your account costs against real benchmarks.