Are Google Ads Worth It for Small Businesses?

An honest look at when Google Ads works, when it doesn't, what it actually costs, and how to tell which side you're on before spending anything.

Google Ads is the fastest way to get in front of people searching for what you sell. It's also the fastest way to spend £2,000 and get nothing back.

Whether it's worth it depends entirely on your business, your margins, and how it's run. Here's an honest look at when Google Ads works, when it doesn't, and how to tell which side you're on before spending anything.

01 — When Google Ads works

Four signs it's right for your business.

• People are actively searching for what you do. Plumbers, solicitors, accountants, storage companies. If someone types your service into Google, ads put you in front of them at the exact moment they need you.
• Your average job value is high enough. If a customer is worth £500+ to you, paying £30–£80 for a lead is fine. If a customer is worth £40, the maths doesn't work.
• You can handle the enquiries. Ads generate leads fast. If you can't answer the phone or reply within an hour, you're paying for calls that go to your competitor.
• You have a landing page that converts. Sending paid traffic to a slow, confusing homepage is burning money. The page has to do its job.

02 — When it doesn't

Why Google Ads might not be right for your business.

Nobody's searching for it yet. If your product is new or niche, there's no search demand to capture. You need awareness first — social, content, PR — before search ads make sense.

Your margins are thin. Some industries have click costs of £5–£15 and conversion rates under 2%. If you're selling a £30 product with a £10 margin, you'll lose money on every sale.

Your competitors have deeper pockets. In some markets, big brands bid so aggressively that small businesses get priced out. That's when SEO becomes the smarter long-term play.

You're not tracking anything. If you can't tell which enquiries came from ads, you can't tell if they're working. Tracking has to be in place before the first pound is spent.

Google Ads doesn't fail because the platform is bad. It fails because it's set up wrong, tracked badly, or pointed at a page that doesn't convert.

03 — What it actually costs

Two costs, not one.

Ad spend goes to Google. For most UK small businesses, a workable starting budget is £500–£1,500/month. Below that, you won't get enough data to optimise.

Management fee goes to whoever runs it. Agencies typically charge £300–£1,000/month or 10–20% of spend. Running it yourself is free — but badly run ads cost more in wasted spend than a good manager charges.

04 — How to know if it's working

The only numbers that matter.

• Cost per lead. Total spend ÷ enquiries. Compare it to what a customer is worth.
• Conversion rate. Enquiries ÷ clicks × 100. A low rate can indicate a landing page, targeting or tracking problem; the useful benchmark depends on your business. Google's conversion-rate definition.
• Return on ad spend (ROAS). Revenue ÷ spend. The break-even point depends on your margins and other costs; revenue is not the same as profit.

Clicks, impressions, and click-through rate are diagnostics — useful for optimising, useless for judging success. If your agency's report leads with them, ask for the leads.

05 — Our honest position

We'll tell you if it's not right for you.

We run Google Ads campaigns for trades, local services, and e-commerce clients — and we've turned down clients whose businesses weren't a fit. Ads work when the maths works. We'll do the maths with you before you spend a penny.

Not sure whether to go paid or organic? We wrote about the trade-off: SEO vs Google Ads: which should you actually be spending money on?