Google Ads for Builders in Australia: Costs, Budgets & Strategy

Google Ads works well for builders in Australia, and most spend between $1,200 and $3,000 per month to generate enquiries. Expect a cost per click of roughly $3 to $18 and a cost per lead of about $70 to $200, depending on your trade, location, and competition. It is the fastest way to put your business in front of homeowners who are searching for a builder right now.

Are Google Ads worth it for builders in Australia?

Yes. Google Ads is worth it for most builders because it captures high-intent demand: people typing "home builder near me" or "extension builder Brisbane" are ready to act. You pay only when someone clicks, and you can switch the leads on and off as your pipeline fills.

The catch is that builders work in a competitive, high-value market, so wasted clicks get expensive fast. A poorly structured account can burn $2,000 a month with little to show for it.

Google Ads delivers the best return when your average job value is high and you can follow up enquiries within minutes. If you quote jobs worth tens of thousands of dollars, a single won job usually pays for months of ad spend.

How much do Google Ads cost for builders?

Most Australian builders invest between $1,200 and $3,000 per month in Google Ads, not including management fees. Within that, the typical cost per click sits between $3 and $18, and the cost per lead lands around $70 to $200.

Costs vary by trade and region. Competitive metro keywords like "custom home builder Sydney" push clicks toward the higher end, while regional or niche searches cost far less.

These are practical ranges, not guarantees. Your real numbers depend on conversion rate, follow-up speed, and how tightly your campaigns are targeted.

How to set your Google Ads budget

Work backwards from one won job. If your average margin on a job is $15,000 and you close one in five qualified leads, you can comfortably spend up to $1,000 acquiring those five leads and still profit heavily.

A simple budget framework for builders:

1. Set a target cost per lead. Use $70 to $200 as a starting band, then refine with real data.

2. Decide how many leads you want. Ten quality leads a month at $120 each means a $1,200 budget.

3. Add a learning buffer. Allow the first 4 to 6 weeks for Google to optimise before judging results.

4. Review monthly. Shift budget toward the campaigns and keywords producing booked jobs.

Start lean, prove the channel, then scale. Builders who throw a large budget at an untested account usually pay for that lesson.

How to structure your Google Ads campaigns

Structure campaigns around your services and locations so every dollar maps to a specific job type. A clean account makes optimisation simple and stops your budget leaking into irrelevant searches.

A reliable structure for builders looks like this:

• One campaign per core service: new home builds, extensions, renovations, knockdown rebuilds.

• Tight ad groups inside each campaign: group keywords by intent, such as "granny flat builder" separate from "home extension builder".

• Location targeting set to your real service radius, not the whole state.

• Search campaigns first before testing Performance Max or Display, so you learn what converts.

Add call extensions, location extensions, and sitelinks. Many builder enquiries come by phone, so make the number easy to tap on mobile.

Keyword strategy for builders

Target keywords that signal a ready buyer in your area. The strongest performers combine a service and a location, like "home builder Geelong" or "second storey addition Perth".

Prioritise keywords in this order:

• Service plus location: highest intent, best conversion.

• Service plus "near me": strong mobile intent.

• Project type: "knockdown rebuild cost", "home extension builder".

• Brand defence: bid on your own business name to protect it cheaply.

Use phrase and exact match for control. Broad match can work later, but only once you have a solid negative keyword list in place.

Negative keywords that save your budget

Negative keywords stop your ads showing for searches that will never become jobs. For builders, this is one of the biggest money savers in the account.

Common negatives to add from day one:

• Job seekers: "jobs", "apprenticeship", "salary", "hiring".

• DIY and training: "how to", "course", "diy", "tutorial".

• Free intent: "free", "cheap", "second hand".

• Wrong trade: materials, suppliers, or trades you do not offer.

Review your search terms report every week for the first month. You will find new negatives every time, and each one tightens your spend.

Ad copy and landing pages that convert

Your ad should name the service, the location, and a clear reason to call. Lead with proof and a strong action, for example "Licensed Home Builders in Newcastle, Free On-Site Quote".

Send every click to a dedicated landing page, never your homepage. A converting builder landing page includes:

• A headline matching the search and the service.

• Photos of completed local projects.

• Licence and insurance details for trust.

• A short enquiry form plus a tap-to-call button.

• Genuine reviews from past clients.

Example : A High-Converting landing page we made for our client.

Speed matters too. A page that loads slowly on a phone loses leads before the form ever appears. For more on turning clicks into booked jobs, see our guide on lead generation for builders in Australia.

Google Ads vs Meta Ads for builders

Google Ads captures people actively searching for a builder, while Meta Ads (Facebook and Instagram) builds awareness and demand among people who are not searching yet. Most builders should start with Google, then layer in Meta for retargeting and brand building.

Meta leads can look cheaper per lead, but they often need more follow-up to convert. Judge each channel on booked jobs, not on raw lead count.

DIY or hire an agency?

Run Google Ads yourself if you have time to learn the platform and manage it weekly. Hire an agency if your time is better spent on site and you want faster, more reliable results without the trial and error.

A DIY account can work for simple, single-service builders, but most lose money in the first few months on poor structure and missing negatives. An experienced agency usually pays for itself by cutting wasted spend and lifting conversion.

If one extra job a month covers the management fee, professional management is almost always worth it for a builder.

Whichever path you choose, track leads through to quotes and won jobs. Marketing that cannot show booked work is not working, no matter how good the click numbers look.