Every small business owner with a marketing budget faces the same question sooner or later: where will this money do the most good? Google Ads promises enquiries from day one. Local SEO promises lasting visibility on Google Maps and in search. And now there is AI search, with customers asking ChatGPT, Gemini and Google’s AI Overviews who to call.
Each option has a genuine role, and each has costs and limitations that are not always explained honestly. Paid ads can be expensive in competitive trades. Local SEO takes time. AI search visibility is real but harder to measure, and it depends heavily on the same foundations as local SEO.
This guide sets out a balanced comparison for UK small businesses: how each channel works, rough costs, realistic timelines, when each makes sense and how to combine them sensibly. It will not tell you there is one right answer, because there is not. The right mix depends on your business, your area and how quickly you need work.
Key points
- Google Ads delivers visibility immediately but stops the moment you stop paying, and costs vary widely by trade and area.
- Local Services Ads, available for some home services and professional categories in the UK, charge per lead rather than per click.
- Local SEO builds lasting visibility in Google Maps and search, typically over three to six months.
- AI search optimisation shares most of its foundations with local SEO and helps you appear in AI-written recommendations.
- Many small businesses do best with local SEO as the base, with ads used selectively for speed or seasonal demand.
- Track enquiries and cost per customer, not clicks or rankings alone.
In this guide
The three options at a glance
Before looking at each in detail, here is a simple comparison.
| Google Ads | Local SEO | AI search optimisation | |
|---|---|---|---|
| How you pay | Per click (or per lead with Local Services Ads) | Your time or a monthly fee | Your time or a monthly fee, often combined with local SEO |
| Speed | Can start within days | Usually builds over three to six months | Usually builds over three to six months |
| What happens when you stop | Visibility stops almost immediately | Results fade gradually rather than vanish | Foundations remain in place |
| Where you appear | Ad slots above and around results | Map pack and organic results | AI Overviews, AI Mode, ChatGPT, Gemini, Copilot, Perplexity |
| Control | High: choose keywords, areas, budgets | Moderate: you influence but do not control rankings | Low to moderate: answers vary and cannot be controlled |
| Measurement | Clear, detailed data | Good: rankings, profile insights, enquiries | Harder: spot checks, referral traffic, asking customers |
Option 1: Google Ads
Google Ads lets you pay to appear at the top of search results for chosen searches in chosen areas. You set a budget, pick the searches you want to show for and pay when someone clicks your ad.
Strengths
- Speed. A well-set-up campaign can bring enquiries within days.
- Control. You choose which services to promote, which areas to target and when ads run.
- Measurement. You can see exactly what you spent and, with proper tracking, which clicks led to calls or forms.
- Flexibility. Useful for seasonal peaks, new services or filling gaps in the diary.
Weaknesses
- Ongoing cost. Visibility stops when the budget runs out.
- Competitive pricing. In some trades and areas, clicks can be expensive. As a rough guide only, costs per click vary enormously, from under a pound for some searches to well over £10 for highly competitive services such as emergency call-outs or legal work, and they change with competition in your area.
- Wasted spend. Poorly configured campaigns can pay for irrelevant clicks, such as people looking for jobs or DIY advice.
- Skill required. Getting good results means careful keyword choices, negative keywords, location settings and conversion tracking.
Rough costs
Many small local businesses spend somewhere from a few hundred pounds to a few thousand pounds a month on clicks, depending on trade, area and ambition. If you use an agency or freelancer to manage campaigns, expect a management fee on top. These are rough guides only and vary a great deal.
Option 1b: Local Services Ads
Local Services Ads are a different Google ad format, shown at the very top of results for certain service searches. Instead of paying per click, you pay per lead, such as a call or message from a potential customer. Businesses go through Google’s screening and verification process and can display a verification badge.
In the UK, Local Services Ads have been available for a range of home service categories, such as plumbers and electricians, and in 2023 Google expanded them to legal and estate agency firms in the London area. Availability depends on your category and location, and Google’s options change over time, so check eligibility on Google’s own Local Services Ads help pages before planning around them.
Points to consider:
- Pay per lead can be more predictable than pay per click, though lead prices vary by category and area.
- Verification takes time and involves checks on your business, so you cannot start overnight.
- Reviews matter. How you appear in these ads is influenced by your reviews and responsiveness.
- Lead quality varies. You can dispute some invalid leads, but you will still receive some enquiries that do not suit you.
Tip
If you run any kind of paid ads, set up call tracking and record which enquiries become paying jobs. Cost per click tells you very little; cost per customer tells you whether the ads are worth it.
Option 2: Local SEO
Local SEO is the work of improving your visibility in Google Maps, the local pack and ordinary search results for searches in your area. It centres on your Google Business Profile, reviews, consistent business details, your website and links from other reputable sites.
Strengths
- Lasting results. Unlike ads, visibility built through local SEO does not disappear the day you stop.
- Trust. Many people trust the map pack and organic results more than ads, and reviews visible in your profile help convince them.
- No cost per click. Once you rank, extra calls do not cost more.
- Supports everything else. A strong Business Profile and website improve the performance of ads and AI search visibility too.
Weaknesses
- Takes time. Profile and listing fixes can help within weeks, but meaningful improvement usually builds over three to six months, and longer in competitive areas.
- No guarantees. You influence rankings but do not control them. Distance from the searcher also plays a big part.
- Ongoing effort. Reviews, content, listings and links need steady attention, not a one-off push.
Rough costs
You can do a good deal yourself for the cost of your time: completing your Google profile, asking for reviews and fixing listings. As a rough guide, professional local SEO services in the UK can range from a few hundred pounds a month for a single-location business in a less competitive area to over £1,000 a month for more competitive markets or multiple locations. When comparing local SEO packages and what each one includes, look at the actual monthly work, such as profile management, citations, content and links, rather than the price alone.
Option 3: AI search optimisation
AI search optimisation, also called AEO or GEO, is the work of helping AI tools understand, trust and recommend your business. This covers Google’s AI Overviews and AI Mode, as well as assistants such as ChatGPT, Gemini, Copilot and Perplexity.
How it relates to local SEO
AI search is not a separate island. Google says its AI features are built on its core search systems and that Business Profiles can help you be visible in AI responses. Copilot uses Bing search, and ChatGPT uses a mix of search and local data providers that OpenAI does not fully disclose. Independent studies of the sources ChatGPT cites for local searches have found business websites, directories, review sites and publications featuring heavily. So the same things that help local SEO, such as consistent details, reviews, clear content and trusted mentions, also help AI visibility.
What AI search work adds
- Making sure your details are consistent beyond Google, including Bing Places and Apple Business (formerly Apple Business Connect).
- Writing content that answers specific questions customers ask, in plain language.
- Earning mentions on the kinds of sites AI assistants cite for your industry.
- Checking what assistants say about you and correcting errors at the source.
Strengths
- Gets you into a growing channel. More customers ask AI assistants for recommendations.
- Builds on work you need anyway. Most AI search improvements also improve your Google presence.
- Shapes how you are described. Clear information helps assistants describe you accurately.
Weaknesses
- Harder to measure. Answers vary between users and sessions, and most tools provide no reporting to businesses.
- No direct control. You cannot buy or guarantee a recommendation in standard AI answers.
- Still evolving. How these tools work changes regularly.
When each option makes sense
There is no universal answer, but these situations are common.
You need enquiries this month
Paid ads, either Google Ads or Local Services Ads where available, are the realistic way to get immediate visibility. Start small, track results carefully and work on your Google Business Profile at the same time so you are less reliant on ads later.
You are a new business with a small budget
Start with the free foundations: claim and complete your Google Business Profile, ask every customer for a review, and list your business consistently on the main directories. A modest, tightly targeted ad budget can bridge the gap while organic visibility builds.
You are established but invisible on Maps
Local SEO is likely to offer the best long-term return. If you already have happy customers but few reviews, an incomplete profile or inconsistent listings, there is usually a lot of low-hanging fruit.
You rank well but want to future-proof
Add AI search work on top of your local SEO. Check what the assistants say about you, strengthen your presence on Bing and the sites AI tools cite, and improve content that answers detailed customer questions.
You are in a very competitive, high-value trade
Many businesses in sectors such as legal services, emergency trades or high-value home improvements use a mix of all three: ads for immediate demand, local SEO for lasting visibility and AI search work to stay present in recommendations.
How to combine them sensibly
For most small local businesses, a sensible approach looks something like this:
- Fix the foundations first. A complete Google Business Profile, consistent listings, a clear website and a steady review routine. This helps every channel.
- Use ads for speed, not as a permanent crutch. Run targeted campaigns for your most profitable services while organic visibility grows.
- Invest steadily in local SEO. Build reviews, content, citations and local links month by month.
- Layer AI search on top. Extend consistency to Bing and other platforms, answer detailed questions on your site and earn mentions where AI tools look.
- Review every quarter. Compare cost per enquiry and cost per customer across channels and shift budget accordingly.
As organic visibility improves, many businesses find they can reduce ad spend or keep ads only for specific services or busy seasons.
Tip
Use your Google Ads search terms report to discover the exact words people use when they need you. Those phrases make excellent starting points for new service pages and FAQs, which then help your local SEO and AI visibility too.
Measuring what really matters
Each channel produces its own numbers: clicks, impressions, rankings, profile views. These are useful, but they are not the goal. The goal is profitable customers.
Track these across every channel:
- Number of enquiries (calls, forms, messages, bookings).
- Source of each enquiry, using call tracking, form fields or simply asking “how did you find us?”.
- Conversion rate from enquiry to paying customer.
- Cost per customer for each channel.
- Average job value, since some channels may bring bigger or more profitable work.
A channel with expensive clicks can still be worthwhile if it brings high-value jobs. A cheap channel that brings time-wasters is not a bargain.
Common budgeting mistakes
- Stopping SEO too early. Cancelling after six weeks because rankings have not moved yet wastes the investment made so far.
- Running ads without tracking. Without knowing which clicks became customers, you cannot judge whether the spend is worthwhile.
- Sending ad clicks to the homepage. A focused landing page for each service usually converts better.
- Ignoring reviews. Reviews affect map rankings, ad performance in Local Services Ads and how AI assistants describe you.
- Chasing AI mentions while neglecting Google. The foundations come first.
- Signing long contracts without clarity. Make sure you understand what work is being done each month and how it will be reported.
Frequently asked questions
Is local SEO cheaper than Google Ads?
Over the long term, often yes, because you do not pay per click once you are visible. In the short term, ads can deliver results faster. The comparison depends on how competitive your trade and area are and how much each customer is worth to you.
Can I do local SEO myself?
Much of the groundwork, yes. Completing your Google profile, asking for reviews and fixing your listings costs only time. Content, technical website work and earning quality links are where many businesses choose to get help.
Are Local Services Ads available for my business?
It depends on your category and location. In the UK they have been available for a range of home services and, since 2023, for legal and estate agency firms in the London area. Check Google’s eligibility information for your exact category and area.
Do I need to pay separately for AI search optimisation?
Not necessarily. Much AI search work overlaps with local SEO, and many providers combine the two. If you do it yourself, the main additions are extending consistency beyond Google, writing clear question-led content and checking what assistants say about you.
How much should a small business spend on marketing?
There is no fixed rule. A common approach is to decide how many new customers you need, estimate what each is worth, and work back to an affordable cost per customer. Start modestly, measure carefully and increase spend on whatever brings profitable work.
How long before I know if a channel is working?
Ads can be judged within a few weeks, provided tracking is set up properly. Local SEO and AI search usually need three to six months before you can fairly judge them, with early signs such as more profile views and calls appearing sooner.
Final thoughts
Google Ads, local SEO and AI search are not rivals so much as tools for different jobs. Ads buy speed and control. Local SEO builds lasting visibility in the places local customers look first. AI search work extends that visibility into the answers people now read before they decide who to call.
For most small businesses, the strongest position comes from solid foundations, steady investment in local SEO and selective use of ads, with AI search built on the same base. Whatever mix you choose, track enquiries and cost per customer, give organic work the time it needs and adjust based on what actually brings profitable work through the door.
