What Is Google Ads and How Does It Work for a Small Business?
Google Ads puts your business at the top of Google when someone searches for what you sell, and you pay when they click. Here is how it works and how to avoid the common money-wasters.
The short answer. Google Ads is Google's advertising platform. You choose search terms (keywords), write ads and set a budget, and your ads can appear when people search for those terms. For most search ads you pay when someone clicks. It suits small businesses when people already search for what they sell, and it works best with tracking in place so you can see which clicks become enquiries.
How it works in four steps
- Someone searches. For example “emergency plumber near me”.
- An auction runs. Google considers advertisers who want to show for that search. Which ad shows and in what position depends on your bid and on quality factors such as how relevant your ad and page are.
- Your ad appears. If it wins, it shows above or below the organic results.
- You pay if they click. You set a daily budget and a bidding approach, and Google charges per click for search ads.
The main campaign types
| Type | Where it shows | Best for |
|---|---|---|
| Search | Google search results | People searching for your service now. The usual starting point for a service business. |
| Performance Max | Across Google's channels, automatically | Broader reach once tracking and search are working |
| Display and Demand Gen | Websites, apps and Google feeds | Awareness and visual promotion |
| YouTube | Video placements | Awareness and story-led offers |
| Shopping | Product listings | Online stores selling physical products |
| Local Services Ads | A separate unit at the top of local search, in selected categories | Some local trades and services. Pay per lead. |
What it costs
There is no fixed price. You set the budget, and the cost per click depends on your industry, your area and how much competition there is. The number that matters is cost per enquiry: what you pay on average for each call or form that comes from the clicks. For service businesses, about £500 a month in ad spend is a practical floor, because below that there is rarely enough data to optimise. For real examples, see what Google Ads cost for a private clinic and a good cost per lead for home improvement.
How to start properly
- Set up tracking first. Count calls and form submissions as conversions before you spend.
- Start with search, one service and one area. A focused account gives clean data.
- Choose keywords by intent. “Plumber near me” beats a general term like “plumbing”.
- Add negative keywords from day one. Words like “jobs”, “free” and “DIY” stop wasted clicks.
- Send people to a page that matches the ad. One page per service beats the homepage.
- Review search terms weekly. See what people actually typed, and cut what is wasting budget.
Mistakes that waste a small budget
- Choosing broad keywords with no area limit.
- Counting clicks, not enquiries.
- Sending every ad to the homepage.
- Letting Google's automatic suggestions change the account without review.
- Judging after a few days instead of weeks.
Common questions
Is Google Ads worth it for a small business?
It can be, if people already search for what you sell and you can track which clicks become enquiries. It is less suited to businesses with a very small margin or no way to answer enquiries quickly.
How much does Google Ads cost?
You set the budget. Costs per click vary by industry and area. About £500 a month in ad spend is a practical floor for service businesses.
How long does Google Ads take to work?
Enquiries often start within the first couple of weeks. A reliable cost per enquiry usually takes about three months of data.
What is the difference between Google Ads and SEO?
Google Ads is paid and works as soon as it is live, stopping when you stop paying. SEO builds free organic rankings over months. Many businesses use both.
What is the difference between Google Ads and AdWords?
They are the same platform. Google renamed AdWords to Google Ads in 2018.