When businesses start thinking seriously about their digital marketing, one question comes up more than almost any other: should we invest in Google Ads or SEO? The two channels are both focused on search — getting your business in front of people who are actively looking for what you offer — but they work very differently and suit different situations.
The good news is that this is rarely an either-or decision. But understanding the strengths, limitations, costs, and timelines of each will help you make the right decision about where to focus first — and how to combine them most effectively over time.
How Google Ads Works
Google Ads (formerly known as Google AdWords) is a paid advertising platform that allows you to bid for your ads to appear at the top of search results pages when people search for specific keywords. You pay each time someone clicks your ad — hence the term pay-per-click, or PPC.
Google Ads gives you a high degree of control. You can set daily budgets, target specific geographic areas, choose exactly which search terms trigger your ads, and test different ad copy to see what converts best. You can pause, adjust, or scale campaigns in real time based on performance.
The most significant advantage of Google Ads is speed. The moment your campaign is live and approved, your ads can start appearing for your target search terms. For businesses that need to generate leads quickly — launching a new product, entering a new market, covering a seasonal peak — this immediacy is enormously valuable.
How SEO Works
SEO is the practice of improving your website and building its online authority so that search engines choose to rank your pages highly in organic (unpaid) search results. Rather than paying per click, you are investing in the quality, relevance, and authority of your website itself.
SEO takes time. Significant improvements in organic rankings typically take three to six months to materialise, and sustainable top-page rankings for competitive keywords often take considerably longer. This is the most common reason businesses default to paid advertising — the desire for faster results is understandable.
But SEO builds something paid advertising cannot: a durable, compounding asset. A page that ranks well in organic search continues to generate traffic without a cost per click. The longer you invest in SEO, the stronger that asset becomes, and the better your cost per lead becomes over time.
Comparing the Costs
The cost of Google Ads varies enormously depending on your industry, the competitiveness of your target keywords, and the quality of your campaigns. In competitive B2B sectors, cost per click can range from a few pounds to £20 or more. This means that generating a meaningful volume of traffic through paid search can require a significant ongoing budget.
SEO involves different costs: typically agency fees for strategy, technical optimisation, content creation, and link building. These costs are generally more predictable than PPC, and they produce an asset that appreciates over time rather than disappearing when the budget is switched off.
When evaluating the cost of each channel, look at cost per lead rather than cost per click. A well-managed SEO programme that generates 50 leads per month at a total agency cost of £2,000 per month has a very compelling cost per lead compared to a PPC campaign that generates the same volume at a much higher total spend.
When to Prioritise Google Ads
Google Ads is the right choice to prioritise when you need results quickly. A new business that cannot afford to wait six months for SEO to take effect should invest in paid advertising to generate immediate pipeline while the slower-burn SEO work gets underway.
Google Ads is also strong for businesses in markets where competition for organic rankings is fierce and would take years to overcome, where search volumes are high but conversion windows are short, or where the economics of paid search work clearly — where the customer lifetime value is high enough that even a relatively high cost per lead is easily justified.
Finally, Google Ads is excellent for testing. The speed and measurability of paid search allows businesses to test different messages, different landing pages, and different offers quickly and cheaply before committing to longer-term content and SEO investments.
When to Prioritise SEO
SEO should be a priority for any business that is thinking about where they want to be in 12 to 24 months. The sooner you start, the sooner you begin building the compounding advantage that organic search delivers over time.
If your business operates in a space where there are consistent, high-volume search queries from your target audience, and where a top-page ranking would generate meaningful inbound traffic, SEO is one of the highest-return long-term investments available.
The ideal scenario for most businesses is to invest in both: using Google Ads to generate immediate pipeline while SEO builds over time. As organic rankings improve and organic traffic grows, you can reduce your paid advertising spend in those areas and redirect budget to new campaigns or keywords.
Ready to Get Started?
Paragon Sales Solutions manages both Google Ads campaigns and SEO programmes for UK businesses. Whether you need fast results from paid search, long-term organic growth, or a combination of both, get in touch for a free consultation and we will help you design the right approach for your business.
Visit Paragon Sales Solutions → www.paragonsalessolutions.co.uk