The verdict in three sentences
A freelancer costs 30 to 45 % less upfront but concentrates the bus-factor risk on one person, with no SLA and no continuity. An agency charges more but spreads that risk across a team, a maintenance contract and a contractual warranty. In 2026, for a strategic B2B site in London, the total cost over 3 years brings the two options much closer: risk, not the quote, should decide.
The 2026 cost comparison
The ranges below reflect the 2026 London market for a 15-30 page B2B redesign with CMS, CRM integration and technical SEO.
| Criterion | Solo freelancer | Structured agency |
|---|---|---|
| Average day rate | 350-550 EUR | 500-750 EUR |
| Typical project budget | 8,000-20,000 EUR | 15,000-40,000 EUR |
| Delivery time | 8-14 weeks | 6-10 weeks |
| Non-delivery risk | 15-25 % | 3-6 % |
| Maintenance SLA | Rare / informal | Contractual 24-48 h |
| Continuity (bus factor) | 1 person | 3-6 people |
| Post-launch warranty | 0-1 month | 3-6 months |
The decisive line is non-delivery risk: a freelancer can fall ill, jump to a better-paid engagement or vanish. On a 15,000 EUR project, a 20 % risk equals a 3,000 EUR expected loss, to weigh against the agency premium.
Total cost over 3 years
The initial quote does not tell the whole story. Over 36 months, maintenance, changes and SEO add up.
| Item (36 months) | Freelancer | Agency |
|---|---|---|
| Initial build | 14,000 EUR | 26,000 EUR |
| Maintenance / support | 150 EUR/month | 400 EUR/month |
| Changes (2/year) | 3,000 EUR/year | 4,500 EUR/year |
| Risk provision | +2,800 EUR | +900 EUR |
| 3-year total | ~34,200 EUR | ~52,400 EUR |
The gross gap stays at 18,000 EUR, but the risk provision and the missing SLA on the freelance side can generate hidden costs (downtime, code takeover) that erode the apparent saving.
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Mini case study
Julian, marketing director of a B2B SaaS vendor in London, must redesign a site generating 40 leads/month. A freelancer quotes 13,000 EUR, an agency 27,000 EUR. Julian values each lead at 250 EUR of margin. A 6-week delivery delay (20 % likely on the freelance side) costs 6 x 40 x 250 = 60,000 EUR of shifted pipeline. Even weighted: 0.20 x 60,000 = 12,000 EUR expected loss, almost the agency premium. Julian picks the agency, securing the timeline.
FAQ
Is a freelancer always cheaper in the end? No. Upfront yes (30-45 % less), but over 3 years the gap often falls below 35 % once you add the risk provision, informal support and any code takeover.
How do I reduce bus-factor risk with a freelancer? Require accessible Git, technical documentation and a standard stack (Next.js, mainstream WordPress). This cuts takeover cost by 40-60 % if the freelancer drops out.
What is a realistic timeline for a B2B redesign in 2026? 6-10 weeks with an agency, 8-14 with a freelancer depending on workload. Add 2-3 weeks for CRM integration (HubSpot, Salesforce) or heavy content migration.
When is a freelancer still the right call? For a tight budget (< 12,000 EUR), a low-criticality brochure site, or as a complement to an in-house team able to take over. The risk becomes acceptable.
What SLA should a strategic B2B site target? Restoration within 24-48 h, 99.9 % uptime and a monthly change window. Standard with an agency, rare with a solo freelancer.
Let's scope your project. Tell us the scope (page count, CRM integrations, indicative budget 15,000-40,000 EUR, target date) and we'll frame the best option. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
