Digital Marketing7 min read

Google PPC vs Social Media Advertising: Which Generates Better Leads?

NAASS Team

2 November 2024

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When UK businesses allocate their marketing budget, one of the most common questions is whether to invest in Google PPC or social media advertising. Both channels generate leads, both can deliver measurable returns, and both have vocal advocates. The honest answer is that neither is universally better; the right choice depends on your industry, audience, budget, and goals.

This article provides a detailed, practical comparison to help you make an informed decision, or determine how to use both effectively together.

Understanding the Fundamental Difference

The core distinction between Google PPC and social media advertising comes down to intent versus discovery.

Google PPC: Capturing Existing Demand

Google PPC places your business in front of people who are actively searching for what you offer. When someone types "housing disrepair solicitor near me" or "ECO 4 free boiler grant" into Google, they have a clear need and are looking for a solution. Your ad appears at the moment of maximum intent.

Social Media Advertising: Creating New Demand

Social media advertising reaches people based on who they are, not what they are searching for. You target users by age, location, interests, behaviours, and life events. The person seeing your ad may not have been thinking about your service, but your message catches their attention and prompts them to act.

This distinction affects everything: cost per lead, conversion rates, sales cycle length, and how you need to follow up.

Lead Quality Comparison

Google PPC Lead Quality

  • Intent level: High. The person was actively searching for your service.
  • Information accuracy: Generally high. Users expect to be contacted and provide real details.
  • Conversion readiness: Many PPC leads are ready to buy or commit within days.
  • Competition: Your lead may have also clicked on competitors' ads, so speed of follow-up is critical.

Social Media Lead Quality

  • Intent level: Lower to moderate. The person was not actively searching but showed interest.
  • Information accuracy: Variable. Pre-filled forms increase completion rates but can result in outdated contact details.
  • Conversion readiness: Often requires nurturing over days or weeks before the lead is ready to commit.
  • Exclusivity: If you generate the lead yourself, it is exclusive by default, giving you an advantage over shared lead sources.

Cost Comparison

Costs vary significantly by industry, but here are realistic UK benchmarks:

Google PPC Costs

  • Average CPC (cost per click): £1 to £15 depending on industry competitiveness
  • Landing page conversion rate: 3% to 10% for well-optimised pages
  • Cost per lead: £15 to £80 for most service-based industries
  • Higher for competitive sectors: legal, insurance, and financial services often see CPLs above £50

Social Media Costs

  • Average CPM (cost per thousand impressions): £5 to £15 on Facebook/Instagram
  • Lead form conversion rate: 5% to 15% using native lead forms
  • Cost per lead: £5 to £35 for most industries
  • Lower entry barrier: you can test campaigns with budgets as small as £10 to £20 per day

On a pure cost-per-lead basis, social media typically appears cheaper. But cost per lead is only half the picture. The critical metric is cost per acquisition: how much it costs to turn a lead into a paying customer.

Conversion Rate Comparison

This is where the picture changes. Google PPC leads, because of their higher intent, typically convert at significantly better rates:

  • Google PPC lead-to-sale conversion: 10% to 25% (industry dependent)
  • Social media lead-to-sale conversion: 3% to 12%

When you factor in conversion rates, the cost per acquisition gap between the two channels often narrows considerably. A £50 PPC lead that converts at 20% produces a £250 cost per sale. A £15 social media lead that converts at 5% produces a £300 cost per sale.

Of course, these are averages. Businesses with strong follow-up processes and lead nurturing can significantly improve social media conversion rates.

When to Choose Google PPC

Google PPC is generally the better choice when:

  • Your service has strong search demand – people are actively Googling what you offer
  • Your sales cycle is short – the customer is ready to buy within days
  • Your average deal value is high – higher CPLs are justified by larger returns per customer
  • You need immediate results – PPC campaigns can generate leads from day one
  • Your conversion process is efficient – you have the team and systems to respond quickly and close deals

Industries that typically perform well with PPC include legal services (housing disrepair claims), home improvement services (ECO 4 installations), and professional services.

When to Choose Social Media

Social media advertising is often the better choice when:

  • Your audience does not know they need you yet – you need to create awareness and prompt action
  • You have a specific demographic target – social platforms offer unmatched demographic and interest targeting
  • Your budget is limited – lower CPCs and CPLs make social media more accessible for smaller businesses
  • You have strong visual content – products and services that photograph well or can be demonstrated on video thrive on social platforms
  • You are building long-term brand awareness – social advertising builds familiarity and trust over time, even among people who do not convert immediately

Life insurance is a good example: many people need cover but are not actively searching. Social media campaigns targeted at new parents, homebuyers, or people approaching retirement can generate substantial lead volumes.

The Best Approach: Using Both Together

The strongest lead generation strategies combine both channels. Here is how they complement each other:

  1. Social media creates awareness – your ads introduce your service to a targeted audience
  2. Some users convert directly – a portion fill in lead forms or visit your website immediately
  3. Others search later – having seen your social ad, they Google your service days or weeks later
  4. PPC captures the search – your Google ad appears when they search, reinforcing the brand they already recognise
  5. Retargeting closes the loop – social media retargeting ads re-engage website visitors who did not convert on their first visit

This multi-touch approach reflects how people actually make decisions. Very few customers see a single ad and immediately buy. Most need multiple exposures across different channels before they take action.

Making the Right Choice for Your Business

Rather than viewing it as an either-or decision, consider these questions:

  • Is there existing search demand for my service? (If yes, PPC should be part of your mix.)
  • Can I define my ideal customer by demographics and interests? (If yes, social media is worth testing.)
  • What is my budget? (Start with the channel that offers the fastest path to positive ROI, then expand.)
  • How strong is my follow-up process? (If you can nurture leads effectively, social media's lower costs become very attractive.)

Let NAASS Handle Your Lead Generation

At NAASS, we run both Google PPC and social media campaigns to generate leads across ECO 4, housing disrepair, and life insurance. We know which channels work best for each sector because we test, measure, and optimise every day.

If you want high-quality, exclusive leads without the complexity of managing campaigns yourself, we can help.

Contact us today to discuss your lead generation needs.

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