The verdict in three sentences
A corporate redesign in Berlin costs between 10,000 and 38,000 EUR in 2026, depending on whether it is a reskin, a structural redesign or a full rebuild. You redesign rather than patch when conversion stalls, the site is unreadable on mobile, or the CMS blocks changes: in those cases, patching is like repainting a house with cracked foundations. A well-planned migration (exhaustive 301 redirects, content freeze, SEO QA) protects 90 to 100 % of existing organic traffic.
Redesign or patch: the decision grid
| Symptom | Patch is enough | Redesign needed |
|---|---|---|
| Dated design, sound structure | Yes | — |
| Steady drop in conversion | — | Yes |
| Broken / non-responsive mobile | — | Yes |
| Outdated CMS, risky updates | — | Yes |
| Adding 2-3 pages | Yes | — |
| New offer architecture | — | Yes |
| Load time > 4 s | Sometimes | Often |
If you tick two or more "redesign needed" rows, patching will cost more over time than redesigning.
Cost in EUR by scenario 2026
| Scenario | What it includes | Price EUR | Timeline |
|---|---|---|---|
| Reskin (same CMS) | new design, same pages | 10,000 - 15,000 | 5-7 wks |
| Structural redesign | new IA, new CMS, SEO | 18,000 - 27,000 | 9-13 wks |
| Full rebuild | new stack, multilingual, integrations | 28,000 - 38,000 | 14-20 wks |
| Enhanced SEO migration add-on | audit + 301 plan + 3-month monitoring | + 2,700 - 5,000 | included |
The most underestimated line is content migration: moving 60 pages with proofreading and re-optimisation is 20 to 40 hours, i.e. 1,700 to 3,400 EUR.
SEO ROI and migration plan
A poorly migrated redesign can lose 30 to 60 % of organic traffic in a month. Done well, it gains. Here is the zero-loss migration plan.
| Step | Duration | Goal |
|---|---|---|
| Audit & crawl of the existing site | wk 1 | map 100 % of URLs |
| 301 redirect plan | wk 2 | map old → new |
| Content freeze & QA | wk 3-4 | lock indexed pages, test |
| Launch + monitoring | day 0 | watch Google crawl |
| Ranking follow-up | day 30 to 90 | fix losses |
A corporate site receiving 8,000 organic visits/month at a 1.2 % lead rate generates 96 leads/month. Protecting that traffic alone is worth tens of thousands of euros of pipeline per year.
Mini case study
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Claire, CFO of an industrial SME in Berlin, hesitates between patching (5,500 EUR) and redesigning (24,000 EUR) a site that receives 8,000 visits/month but converts at only 0.5 %. The structural redesign targets 1.5 % conversion. That moves leads from 40 to 120/month, i.e. 80 gained leads. With an average 3,000 EUR margin per closed deal and a 6 % close rate, that is roughly 4.8 extra deals/month, i.e. 14,400 EUR of monthly margin. The 24,000 EUR redesign is repaid in under 2 months of over-performance. Patching would have left conversion unchanged.
FAQ
When is a simple patch really enough?
When the structure and CMS are healthy and only the design is ageing. A 10,000-15,000 EUR reskin is then enough. Once the architecture or tech is the problem, patching becomes an expensive band-aid.
How much traffic can be lost in a redesign?
With an exhaustive 301 plan and SEO QA, loss stays at 0-10 % and recovers in 4-8 weeks. Without a plan, 30 to 60 % durable loss is common.
Should we keep the same URLs?
If possible, yes, it removes the risk. When the architecture changes, every old URL must 301 to its closest equivalent. A 200-page site needs about 200 hand-mapped redirects.
How long before rankings recover?
Between 2 and 8 weeks after launch for a properly migrated site. Pages with strong history return first; deep pages can take up to 90 days.
What post-migration monitoring budget should we plan?
Budget 2,700 to 5,000 EUR for 3 months of monitoring: ranking tracking, 404 fixes, redirect adjustments. It is the insurance that protects the rest of the investment.
Let's scope your project. Send us your current URL, traffic volume and conversion goals: we will tell you whether to patch or redesign, with a per-scenario quote. 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.
