The verdict in three sentences
A full premium redesign costs between EUR 6,000 and 18,000 for a London SME in 2026, versus EUR 1,500 to 4,000 for targeted tweaks. The gap is justified as soon as your LCP exceeds 3 seconds or your conversions plateau, because a proper redesign recovers 18 to 35 % more conversions. Below 12 pages and without heavy technical debt, targeted fixes often remain the best cost-to-impact ratio.
Line-by-line budget (2026)
Here are 2026 orders of magnitude for a structured agency, with an average day rate of EUR 450 to 650.
| Line item | Range (EUR, ex. VAT) | Detail |
|---|---|---|
| Audit & scoping | 800 - 2,000 | UX, technical, SEO, analytics |
| UI design (mockups) | 1,800 - 4,500 | 12 to 25 screens, design system |
| Build & dev | 2,500 - 7,000 | responsive, animation, CMS |
| Content & copy | 600 - 2,200 | copywriting, on-page SEO |
| Technical SEO & migration | 1,000 - 3,000 | 301 redirects, schema |
| QA & go-live | 500 - 1,500 | testing, accessibility, perf |
| Total premium redesign | 6,000 - 18,000 | 12 to 25 pages |
Post-launch maintenance sits between EUR 90 and 250/month (updates, security, backups, small changes).
Targeted tweaks or full redesign?
| Criterion | Tweaks | Full redesign |
|---|---|---|
| 2026 budget | EUR 1,500 - 4,000 | EUR 6,000 - 18,000 |
| Timeline | 1 to 3 weeks | 6 to 10 weeks |
| Typical LCP gain | 4.2 s → 3.1 s | 4.2 s → 1.8 s |
| Conversion uplift | 5 to 12 % | 18 to 35 % |
| Lifespan | 12 to 18 months | 4 to 6 years |
| SEO | roughly neutral | restructure + gains |
In short: tweaks extend the existing site, a redesign resets your foundation for several years.
Mini case study
Helen, finance director of a 45-person industrial SME in London, runs a 5-year-old site that has become slow (LCP 4.2 s). It generates 22 qualified quote requests a month. After an EUR 11,500 redesign, LCP drops to 1.8 s and requests rise 28 % to 28 leads/month, i.e. 6 extra leads. With a 20 % close rate and an average margin of EUR 3,200 per deal, that is about EUR 46,000 of extra annual margin: the investment is paid back in under 4 months.
FAQ
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
How long does a premium redesign take in 2026?
Budget 6 to 10 weeks for 12 to 25 pages: 1-2 weeks scoping, 2-3 design, 3-4 build, 1 QA. Client content not being ready is the number one cause of delay.
Will a redesign hurt my search rankings?
Not with a clean migration plan: exhaustive 301 redirects, keeping high-performing URLs, updated sitemap. A botched migration can cost 20 to 40 % of traffic for 2 to 3 months.
What is the real 3-year cost?
At EUR 11,500 plus EUR 150/month maintenance, the 3-year total is around EUR 17,000, i.e. under EUR 500/month for a core commercial asset.
Can I spread payment?
Yes: a common schedule is 30 % on order, 40 % on design sign-off, 30 % on go-live. Some premium projects spread over 3 to 6 milestones.
Do I need to change CMS during a redesign?
Not always. Keep the CMS if it is not the source of debt; migrate when maintenance exceeds 30 % of the annual budget or blocks performance.
Let's scope your project. Tell us about your current site, page count and lead target, and we will frame a scope and indicative budget between EUR 6,000 and 18,000 ex. VAT. 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.