Google Ads for Tradies: A Complete Guide to Profitable Local Campaigns

TL;DR

• Google Ads works because it catches someone at the exact moment they need a tradie, not weeks before, unlike a billboard or a radio spot.
• Work out your break even cost per lead before you spend a dollar. Skip this and you cannot tell a good month from a bad one.
• Never mix unrelated services in one campaign. Hot water repairs and air conditioning installs behave nothing alike in an auction.
• Exact and phrase match are the safer starting point. Broad match needs real conversion history behind it first, or it will find your budget a home in searches that were never going to convert.
• A negative keyword list built before launch, not after, is the cheapest insurance you can buy for your ad spend.
• Bidding strategy should change as your campaign matures: start on Maximise Clicks to gather data, then move toward Target CPA once you have enough conversions.
• None of it works without accurate conversion tracking. An untracked account cannot tell Google, or you, what is actually working.

Why Google Ads Works Differently From Other Advertising

Most advertising a trade business considers, a local paper ad, a radio spot, a flyer drop, a sponsored post, works the same way. You pay upfront for attention, and you hope some of the people who see it need what you do right now. Most will not. A billboard reaches thousands of people who are not thinking about their hot water system at all.

Google Search Ads work differently because they sit at the exact point someone has a problem and is actively looking for someone to fix it. When a pipe bursts at six in the morning, nobody waits for a billboard. They open Google and search for a plumber. That search is a moment of genuine intent, and it is the moment a Search ad can put your business in front of them.

This is also where the format runs into real limits, and they are worth naming before you spend anything.

• It only captures demand that already exists. If almost nobody searches for a service you offer, Search ads have nothing to bid on. They cannot create interest in something people do not yet know they need, the way a longer brand campaign might.
• You are competing for a fixed pool of searches, right now. There is no way to reach someone who will need your service in six months but is not searching today.
• The website the ad points to has to do its job. A slow, cluttered or hard to navigate site will waste every click a campaign sends it, no matter how well the campaign itself is built.

With that context, the natural next question is how Google actually decides which business gets shown first when a search happens, because that decision drives almost everything else about how a campaign should be built.

How the Ad Auction Actually Works

Every time someone searches, Google runs an auction between every advertiser bidding on a matching keyword, and it happens in a fraction of a second. The advertiser willing to pay the most does not automatically win. Google ranks ads using a calculation called Ad Rank, and according to Google's own documentation, six things feed into it: your bid, the quality of your ad and landing page, a minimum quality threshold for each position, how competitive that particular auction is, the context of the search itself (location, device, time of day, the searcher's own history), and the expected benefit of any extra ad assets you have added, such as sitelinks or a phone number.

Quality sits at the centre of that list, and Google measures it with a Quality Score from 1 to 10 on every keyword in your account. A higher score is not just a badge, it is a real discount. Google rewards relevant ads with a lower cost per click and a better position for the same bid. Quality Score itself comes from three things, again according to Google's documentation: your expected click through rate compared with other advertisers on the same search, how closely your ad text matches what the person actually searched for, and your landing page experience, which Google checks with an automated crawler for speed, mobile usability, a clear next step and genuine relevance to the search.

The practical takeaway is what I call the relevance chain: the keyword you are targeting, the words in your ad, and the page the click lands on should all say the same thing. If you want a sense of what this actually costs to run well in a competitive local market, how much Google Ads costs for a Hornsby trade business breaks down real figures. If someone searches "hot water repair Sydney", your headline should say Hot Water Repair Sydney, and the page they land on should be about hot water repairs, not a general plumbing homepage. Break that chain anywhere and you pay more for the same click.

Work Out Your Real Numbers Before You Spend Anything

The most common mistake I see in trade accounts, whether they are run in house or by an agency, is starting without a clear number for what a lead is actually allowed to cost. Without that number, you cannot tell whether a campaign is working. You are just watching clicks happen.

Work backward through your own numbers to find it. You need four figures: how many people click through to your site each month, what share of those clicks turn into a call or a form (your website's conversion rate), what share of those enquiries your team actually turns into a booked, paid job (your closing rate), and the average value of a completed job.

Here is a worked example, with figures chosen only to show the method, not as a benchmark for your business.

That last line, cost per lead, only tells you whether the campaign is efficient. It does not tell you whether it is profitable, and that distinction matters. A $3,400 job usually carries real costs before you see a cent of profit: materials, fuel, a technician's time, insurance. If half of that $3,400 goes to those costs, your actual gross profit on the job is $1,700, and that is the absolute ceiling for what you can afford to pay to win that customer. Your target cost per lead needs to sit comfortably under that number, not right up against it.

Structure Your Account Around How People Search, Not Around Your Business

A Google Ads account should be organised into campaigns and, inside each campaign, ad groups. Get the structure wrong and everything downstream, from Quality Score to Smart Bidding, works against you instead of for you.

The rule I hold every account to: never put unrelated services in the same campaign. A business offering hot water repairs, blocked drain clearing, air conditioning installs and switchboard upgrades needs a separate campaign for each of those categories, not one campaign covering everything the business does.

There are three real reasons this matters, not just tidiness.

• The person searching is in a different mindset for each service. Someone searching for an emergency hot water repair at five in the morning wants a phone number now. Someone researching a full ducted air conditioning install is planning weeks ahead. Blending those two audiences into one campaign confuses the message and the budget.
• Automated bidding needs a clean signal. Smart Bidding strategies learn from the conversion patterns inside a campaign. Feed it two very different customer types at once and it has a harder time learning what a good lead actually looks like for either one.
• Mixed campaigns drag down Quality Score for everything in them. A campaign that tries to be relevant to too many different searches ends up being highly relevant to none of them, and every keyword in it pays more as a result.

Inside each campaign, ad groups do the finer sorting. A hot water campaign, for example, might split into an emergency repairs ad group, a heat pump and solar upgrades ad group, and a gas continuous flow ad group, each with its own tightly matched keywords and ad copy. That level of focus is what makes the relevance chain from the previous section actually hold together at scale.

Match Types and Negative Keywords: Where Budget Actually Leaks

Once your structure is right, the next place accounts lose money is in how keywords are matched to real searches.

A search term is the exact string someone types into Google. A keyword is the phrase you have told Google Ads to bid on. Match types control how loosely or tightly Google is allowed to connect the two.

Broad match is Google's default setting, and it is genuinely powerful once an account has enough conversion history for Smart Bidding to work with. It is also the setting most likely to waste money on day one, because without that history it can match your plumbing keyword to searches like how to unclog a drain with baking soda. A reasonable rule of thumb used by many PPC specialists is to hold off on broad match until a campaign has built up at least 20 to 30 conversions in the trailing 30 days, and to lean on exact and phrase match before then.

Negative keywords deserve the same care as the keywords you are bidding on. Before a campaign goes live, build a list that blocks the searches you already know are not customers: job seekers looking for apprenticeships or careers, people wanting a DIY video or a tutorial, and anyone searching only for the cheapest or free option. This single step, done before launch rather than after the budget has already gone, is one of the cheapest forms of protection available to you.

Finding Keywords Without Losing a Week to It

Google's own Keyword Planner, inside Tools and Settings, is still the right starting point. Set your service area, enter two to four seed terms that describe your core services the way a customer would actually search for them, and let it surface related searches and their monthly volume. Filter out anything irrelevant to what you are launching: competitor brand names, services you are not offering yet, and commercial or industrial searches if you only serve residential customers.

From there, an AI assistant such as ChatGPT can genuinely speed up the next step, which is grouping a long list of keywords into a handful of clean, well themed ad groups instead of dozens of tiny ones with barely any search volume each. Paste your exported keyword list in and ask it to sort the terms into five or six ad groups based on what the person searching actually wants, for example emergency repairs, planned upgrades, and specific system types. Aim for that five or six group range. Fewer groups means each one collects enough traffic to actually learn from.

The same keyword export is also where your negative keyword research should start. Sort by search volume and look for anything adjacent to your business but not actually a customer, then add those terms to the universal negative list before the campaign goes anywhere near live.

Writing Ads People Actually Click

Responsive Search Ads are the standard ad format in Google Ads today. Google's own limits allow up to 15 headlines of up to 30 characters each, and up to 4 descriptions of up to 90 characters each, and it tests combinations of them automatically to find what performs best for each individual searcher.

A good set of headlines usually mixes a few different jobs: some that simply state the service and location, some that lead with a genuine point of difference (licensed, insured, a real guarantee, no callout fee), some that answer the objection running through a nervous customer's head (surprise fees, no show tradies, messy job sites), and a few clear calls to action. AI tools are genuinely useful here too, for generating a wide spread of options quickly, but every line still needs a human check against Google's own advertising policies, since the platform does not allow unprovable superlatives like "the best in the state," and phone numbers are not permitted inside the ad text itself.

Ad Assets Are Free Real Estate on the Search Result

Ad assets, previously called extensions, add extra elements to your ad on the results page: callouts, sitelinks, a structured list of your services, your business location pulled from your Google Business Profile, images, and more. Google factors the expected benefit of these assets directly into Ad Rank, and its own guidance is to add at least four asset types where they genuinely apply to your business, because they cost nothing extra to add and only appear when Google predicts they will help.

For a trade business, the highest value combination is usually callouts for real credentials (licensed and insured, a genuine guarantee, no callout fee in business hours), sitelinks pointing to your highest intent pages (pricing, a specific service, reviews), a structured snippet listing the specific services or brands you work with, and your verified Google Business Profile connected as a location asset so your address, hours and distance show on mobile.

Choosing a Bidding Strategy for Where Your Campaign Actually Is

The right bidding strategy depends on how much conversion history your campaign has, not on which one sounds the most advanced.

• Maximise Clicks needs no conversion history at all, and is the right choice for roughly the first one to two weeks of a brand new campaign, purely to gather data and build your negative keyword list.
• Maximise Conversions takes over once tracking is confirmed working, and bids to get as many conversions as it can from your budget.
• Target CPA is where most stable local campaigns should end up, bidding to hit a cost per conversion you set. It needs a reasonable amount of conversion history to work well, and setting the target unrealistically low will not force cheaper leads, it will simply stall the campaign, because the algorithm cannot find enough auctions it believes it can win at that price.
• Target ROAS bids to a target return rather than a target cost, and Google's own documentation states Search and Shopping campaigns need at least 15 conversions in the past 30 days at the conversion tracking level before it has enough to work from. It suits businesses whose jobs vary a lot in value, more than a simple cost per lead target would.

If you are moving to Target CPA, set the initial target a little above your actual historical cost per lead, then bring it down gradually, in steps of around 5 to 10%, as the campaign proves it can hold performance at each new level.

None of This Works Without Real Conversion Tracking

Everything in this guide, your break even cost per lead, Smart Bidding, Target CPA, assumes Google Ads can see which clicks actually became customers. An account with broken or missing tracking is flying blind, and so are you.

At minimum, a trade account needs three things tracked properly: form submissions, confirmed by a dedicated thank you page rather than just a button click, click to call on mobile landing pages, and phone calls through a Google forwarding number, which swaps in a tracking number for your Google Ads visitors and reports back which keyword actually produced the call.

Frequently Asked Questions

How much should a tradie budget for Google Ads?

There is no single right number, because it depends entirely on your cost per click, your conversion rate and what a customer is worth to you. The right approach is the one this guide walks through: work out your break even cost per lead first, then size your budget to the volume of leads you actually want at that cost, rather than picking a budget figure and hoping.

Should I start with broad match or exact match?

Start narrower. Exact and phrase match give you tighter control while your account has little or no conversion history. Broad match becomes genuinely useful once Smart Bidding has enough real conversions, commonly cited as somewhere around 20 to 30 in the trailing 30 days, to learn from.

Can I run Google Ads myself, or do I need an agency?

Either can work. The real question is whether you have a standing block of time each week to review search terms, adjust bids and refresh ad copy, because the work does not stop once a campaign launches. If that time consistently gets pushed aside by paid jobs, the account usually drifts, regardless of how well it was built at the start. That trade off is exactly what should you hire a Google Ads manager, or run your own account is about, and these PPC strategies for small businesses cover the levers that protect return on spend either way.

What is the difference between Google Search Ads and Local Services Ads?

Search Ads are the standard pay per click format, where you control the keywords, the copy and the landing page directly. Local Services Ads sit above them for eligible trades and professional services, are priced per lead rather than per click, and require passing a Google Guarantee background check. Many trade businesses genuinely benefit from running both.

How long before a Google Ads campaign starts producing results?

Clicks and calls can start the same day a campaign goes live, since it does not depend on organic ranking the way SEO does. Reaching a stable, efficient cost per lead usually takes longer, often four to eight weeks, while the account gathers enough real search and conversion data for Smart Bidding to work properly.

If working through your own unit economics, account structure and tracking setup feels like more than you want to take on alongside running the business, that is exactly the conversation we have in a free strategy session, and we will tell you honestly whether Google Ads is the right move before you spend a dollar.

Prices, figures and guidance in this article reflect the sources cited below and general Google Ads practice at the time of writing, and are general information rather than a guarantee of results for your business.

Sources and References

• Google Ads Help: Quality Score
• Google Ads Help: About Ad Rank
• Google Ads Help: About responsive search ads
• Google Ads Help: Target ROAS bidding
• Google Ads Help: Keyword matching options

Figures used to illustrate the unit economics example are for demonstration only, not a benchmark for any business. Prices, features and platform requirements referenced above reflect Google's published guidance at the time of writing and can change; check Google Ads Help for current detail before relying on a specific figure.