Google Ads is the fastest way for a London business to get in front of people who are actively searching for what you sell. But most London businesses waste money because they set up campaigns wrong, target too broadly, or ignore the data. This guide will walk you through exactly how to run profitable Google Ads in London, what mistakes to avoid, and when to scale.
Google Ads isn't about interrupting people. It's about meeting them when they're already looking. Someone in London searching for "HVAC repair near me" or "corporate lawyer London" is ready to buy. They're not browsing. They're searching with intent.
That's what makes Google Ads different from other marketing channels. You're not trying to convince someone they need your service. You're competing for their attention at the moment they're actively looking for a solution.
For London businesses, this advantage is even stronger because you can use geo-targeting to reach people in your city and surrounding areas. If you're a real estate agent in London, you can target people searching for homes in London, Airdrie, Cochrane, Okotoks, Chestermere, and Canmore. You're not paying for clicks from people outside your service area. You're not wasting money on national traffic that will never convert.
Local service ads work particularly well for trades and professional services. A plumber in London, a dentist, a contractor can set up Local Service Ads and get leads from people in London searching for those services right now. No wasted clicks. No bad leads.
Not all Google Ads campaigns are created equal for local businesses. Here's what actually works.
Search campaigns target people who are searching for specific keywords. You set your bid, write your ad, and Google shows it to people searching for those keywords. A plumbing company in London would target keywords like "emergency plumber London", "water heater repair London", "pipe leak London". These are high-intent keywords. People searching them are ready to call.
Search campaigns are the foundation. If you only run one type of campaign in Google Ads, this should be it.
Performance Max campaigns use machine learning to show your ads across Google's entire network. Search, Display, YouTube, Gmail, Google Maps. The AI optimizes where and when to show your ads based on your conversion data. If you have solid conversion tracking, Performance Max can be incredibly effective for local businesses because it finds customers across all of Google's properties.
If you're a tradesperson, contractor, plumber, electrician, or provide professional services in London, Local Service Ads should be part of your strategy. These ads appear at the very top of Google search results for local queries. They show your business name, rating, and response time. You only pay when someone contacts you. Not when they click. When they actually reach out. That's a lower risk for your budget.
If you sell products online in London or run an ecommerce store, Shopping ads display your products directly in search results with images, prices, and your business name. These convert extremely well for ecommerce because they're visual and immediate.
This is where most London businesses fail. They set up Google Ads with broad location targeting or they forget to narrow it down at all. You end up paying for clicks from people in Manchester, Birmingham, or people who are just passing through London.
Here's what proper London geo-targeting looks like.
Radius Targeting: Set a specific radius around your business address. If you're in downtown London and serve the metro area, a 15-25 km radius makes sense. If you're a lawyer serving only London, 8-10 km. If you're a restaurant, even smaller. This keeps your spend focused on people who can actually visit or use your service.
City and Surrounding Area Targeting: Target London, Airdrie, Cochrane, Okotoks, Chestermere, Canmore, and other nearby communities depending on your service area. Don't target all of England if you only serve London. You're paying for wasted clicks.
Location-Specific Ad Copy: Your ads should mention London or the specific neighborhood. "Google Ads Agency London" performs better than "Google Ads Agency". "Emergency Plumber in London" outperforms "Emergency Plumber". People search locally. Your ads should reflect that.
London-Specific Landing Pages: Send London traffic to a London-focused landing page. Don't send everyone to your homepage. Build a dedicated London landing page with local content, local references, local phone number, local testimonials. This increases conversion rates because people feel like you understand their market.
The question everyone asks: how much should you spend on Google Ads in London?
There's no one answer, but here are realistic budgets based on business size.
Small Business (startup, single location, under 10 employees): Start with $2K-5K per month. This gives you enough budget to test keywords, optimize bids, and build conversion data. At this level, you're learning. Don't expect massive volume immediately.
Mid-Market Business (10-50 employees, established, multiple service lines): $5K-15K per month. At this level, you have enough data to optimize, enough budget to compete on competitive keywords, and enough volume to test different approaches.
Larger Business (50+ employees, mature marketing operation): $15K+ per month. You're competing on major keywords, you have robust conversion tracking, and you're scaling based on clear ROI metrics.
Now for cost per click by industry in London. These are rough averages but they'll help you benchmark.
For bidding strategy, you have two main options.
Manual CPC (Cost-Per-Click): You set your bid for each keyword and Google shows your ad based on that bid. More control, but requires active management. Good if you want to test specific keywords or control spend precisely.
Maximize Conversions: You set a budget and Google's AI automatically bids to get you the most conversions within that budget. This requires solid conversion tracking but it usually performs better because the algorithm is learning constantly. Most established campaigns should use this.
Here's the biggest mistake I see from London businesses. They run Google Ads and send all the traffic to their homepage. Homepage. Every single visitor. Every lead you're paying for lands on a generic homepage.
This is why your conversion rate is terrible.
A person searching "emergency plumber London" doesn't want to see your homepage. They want to see emergency plumbing services. Someone searching "family lawyer London" doesn't want your homepage. They want family law information.
Dedicated landing pages convert 2-3x better than homepages. This isn't opinion. This is data from thousands of campaigns. A/B test it yourself and you'll see the difference immediately.
A good landing page for Google Ads includes:
You can't optimize what you don't measure. Most London businesses are running Google Ads blind because they're not tracking conversions properly.
Conversion Tracking Setup: Install Google Ads conversion tracking on your website. Track form submissions, phone calls, purchases, signups, whatever matters to your business. Without this, you're flying blind.
Call Tracking: Use a call tracking service that integrates with Google Ads. When someone clicks your ad and calls you, track it. This is huge for service businesses. You'll see which keywords actually drive phone calls.
ROAS Calculation: ROAS is Return on Ad Spend. If you spent $100 on ads and made $300 in revenue, your ROAS is 3x. Track this metric religiously. It tells you if your campaigns are profitable. Most businesses should aim for 3x-5x ROAS. Below 2x, you're losing money.
When to Scale and When to Pause: Once you know your ROAS, scaling becomes simple. If you're getting 4x ROAS, increase your budget. If you're getting 1x or negative, pause and optimize. This data-driven approach is what separates profitable campaigns from money-losing ones.
You set your location to all of England. You target keywords that could match any business. Your ads show to irrelevant traffic. You're paying for clicks from people who will never buy. Narrow your targeting. Narrow it more than feels comfortable. You'll spend less and convert more.
If you're a lawyer and someone searches "free legal advice", you don't want your ad showing. Add "free" as a negative keyword. If you sell premium products, add "cheap" as a negative keyword. Negative keywords prevent your ads from showing to the wrong audience.
We covered this. Stop doing it. Build dedicated landing pages.
You're paying for clicks but you don't know which ones convert. You can't optimize. You can't prove ROI. Set up proper tracking before you spend a dime.
Google Ads takes 4-8 weeks to optimize. You need data before you can make smart decisions. Most businesses give up after 2-3 weeks when their ROAS is terrible. The issue isn't Google Ads. It's that you haven't optimized yet. Give it time. Optimize based on data.
Getting Google Ads to work for your London business is straightforward if you follow the fundamentals. Target your city, track conversions, build dedicated landing pages, and optimize based on data. Most importantly, be patient. Google Ads gets better over time. If you're looking for help, a London marketing agency can handle campaign setup and optimization while you focus on running your business. Check out our guide on small business marketing in London for a broader strategy perspective, and read about scaling paid ads once your campaigns start working.
Based in London
We manage Google Ads campaigns for London businesses that want real leads, not wasted spend. From setup to scaling.
Work With Us