From Ad-Heavy to SEO-Smart
ZüriClean, a professional cleaning service in Zurich, was spending over 3,000 CHF monthly on paid advertising between September and December 2024. Yet despite the spend, they were averaging just 19–20 leads per month. The cost per lead was high, and the conversion funnel lacked consistency.
That’s when they made the pivot to SEO — and the results have been transformational.
In April 2025, ZüriClean generated 83 leads organically, without a single franc spent on ads. With just 800 CHF invested in SEO services and backlinks, the brand not only saved money but built a more sustainable digital presence.
The Problems with Paid-Only Growth
| Service | Total Spent (CHF) | Ad Leads | Avg. Cost/Lead (CHF) |
|---|---|---|---|
| Move Out | 1,641.64 | 29 | 56.60 |
| Sofa Cleaning | 884.00 | 17 | 52.00 |
| Regular | 280.28 | 12 | 23.36 |
| Mattress | 113.60 | 0 | – |
| Disposal | 36.34 | 0 | – |
| Carpet | 78.68 | 1 | 78.68 |
| Miscellaneous | 345.97 | 3 | 115.32 |
| Total | 3,380.51 | 62 | Avg: 54.52 |
- Cost per lead was very high (especially for sofa, carpet, and misc. services).
- Some services had zero returns despite ad spend.
- Lead consistency was low and unpredictable.
The Shift to SEO: What We Did
- Website Layout Overhaul — Faster speed, conversion-focused, booking forms added.
- Service Information Pages — Optimized, informative, action-driven pages for every service.
- Location-Specific Pages — Localised pages for Zurich and nearby districts.
- Keyword Research & Targeting — High-intent keyword targeting across all content.
- Omni-Channel Presence — Google Business, social media, directories aligned.
- Backlink Building (CHF 800) — Local, niche blogs and directories.
SEO Results: Leads Skyrocketed
| Month | Total Organic Leads |
|---|---|
| Jan | 68 |
| Feb | 83 |
| Mar | 65 |
| Apr | 83 |
April 2025 Leads (By Service)
| Service | Organic Leads |
|---|---|
| Move-Out | 35 |
| Sofa Cleaning | 21 |
| Regular | 13 |
| Mattress | 3 |
| Disposal | 1 |
| Miscellaneous | 4 |
| Total | 77 |
ROI Calculation
Paid Ads (Sep–Dec 2024)
Total Spend: CHF 3,380.51
Total Leads: 62
Cost per Lead: CHF 54.52
SEO (Jan–Apr 2025)
Total Spend: CHF 800
Total Leads: 299
Cost per Lead: CHF 2.67
Result: 20x improvement in cost efficiency.
Why This Works Better: Long-Term Growth vs. Short-Term Boost
| Aspect | Paid Ads | SEO Strategy |
|---|---|---|
| Cost | High monthly burn | One-time/monthly low spend |
| Longevity | Ends when budget ends | Long-term asset |
| Quality of Leads | Mixed intent | High-intent (search-based) |
| Control | Platform-dependent | Owned property (website, content) |
| Trust Factor | Low (ad-fatigue) | High (SEO builds credibility) |
Key Takeaways for Other Businesses
- Stop Over-Relying on Ads: They're expensive and volatile.
- Invest in SEO Smartly: With the right strategy, the returns can far exceed traditional ad budgets.
- Think Locally: Local pages and service-specific content draw in high-quality leads.
- Track Everything: Monitor service-wise conversions and build what works.
Final Words: ZüriClean's Transformation
ZüriClean’s journey from burning cash on ads to thriving on organic search proves that smart SEO isn’t just a marketing luxury — it’s a necessity. With just CHF 800 in investment, they saw nearly 5x the leads compared to a CHF 3,300 ad campaign.
And this is just the beginning — SEO compounds over time.
ZüriClean — From paid-only to SEO-led growth, now 100+ organic leads every month at zero ad spend.
Read the full ZüriClean case study