Lead generation PPC is the use of paid search and paid social advertising to generate qualified enquiries (leads) — form submissions, phone calls, or chat conversations — from potential customers who are researching services before making a buying decision. Unlike ecommerce PPC (where the conversion is a purchase), lead gen PPC converts traffic into contact with the sales team, who then close the deal. Lead gen PPC is most common in professional services, B2B, healthcare, home services, and other high-value service businesses where the purchase decision involves human interaction.
Successful lead generation PPC requires alignment between the ad, the landing page, and the sales process. An ad that promises 'Free Consultation This Week' must be backed by a landing page that makes booking that consultation easy, and a sales team that responds to enquiries promptly. The entire funnel — from keyword to closed deal — determines whether PPC investment is commercially justified.
Lead gen PPC optimisation
- Choose high-intent keywords — 'solicitor [city]' and 'family law help' indicate active purchase intent vs 'what does a solicitor do' (research intent)
- Build dedicated landing pages — purpose-built lead capture pages convert at 3-5x higher rates than homepages
- Minimise form fields — ask only for what is essential; each additional field reduces form completion rate
- Add social proof — testimonials, review ratings, and case studies on the landing page reduce enquiry anxiety
- Implement call tracking — phone leads are often the majority of service business conversions; track them accurately
- Set Target CPA based on lead-to-customer conversion rate and customer value — not arbitrary benchmarks
- Respond to leads within 5 minutes — research shows response time dramatically affects lead conversion to appointment
Measuring lead quality requires connecting PPC conversion data with downstream CRM data. Tag each PPC lead with a UTM parameter that is passed through the form submission into the CRM. Track which leads convert to opportunities and then to won customers. This enables calculation of revenue per PPC lead, cost per acquired customer (not just cost per lead), and identification of which keywords and campaigns generate the highest-quality leads — not just the highest volume of form fills.
Lead-to-close rates for PPC leads vary significantly by sector. Rough UK benchmarks: home services (plumbers, electricians, roofers) 40-70% close rate from enquiry if the lead is genuine; professional services (legal, accountancy, HR consulting) 20-40%; B2B SaaS 10-25% from demo request to paid subscription; healthcare private clinic 30-60% consultation to treatment booking. Lower close rates typically indicate lead quality issues (wrong audience targeting, misleading ad copy creating poor expectation match) or sales process weaknesses (slow follow-up, poor handling of objections).