The verdict in three sentences
A B2B website redesign in London costs between 9,000 and 24,000 GBP in 2026 for 8 to 20 pages, over a 6 to 10 week timeline. The heaviest line item is not design but technical integration (Next.js, CMS, performance), which often accounts for half the budget. A site twice as fast and better structured lifts your quote-request conversion rate, which pays back the investment within a few months for an industrial or services SME.
What a redesign quote actually covers
A redesign is not just a facelift: it means audit, information architecture, design, development, content migration and SEO. Here are the 2026 ranges seen in the London market for a professional business website.
| Line item | 2026 range (GBP) | Indicative timeline |
|---|---|---|
| Audit + UX / architecture | 1,300 - 3,000 | 1 - 2 weeks |
| UI design (mockups) | 2,600 - 7,000 | 2 - 3 weeks |
| Next.js build + CMS | 4,500 - 11,000 | 3 - 5 weeks |
| Content + SEO migration | 1,800 - 3,500 | 1 - 2 weeks |
| QA + go-live | 700 - 1,800 | 1 week |
| Typical total (8-20 pages) | 9,000 - 24,000 | 6 - 10 weeks |
On top sits maintenance (retainer): budget 150 to 400 GBP/month for security updates, fixes and small improvements. High-performance hosting runs between 20 and 60 GBP/month.
Agency, freelance or studio: the trade-off
The supplier choice swings the quote by 30 to 50% at equal scope. The table below sums up the gaps seen in 2026.
| Criterion | Freelance | Local studio / agency | Large agency |
|---|---|---|---|
| Typical redesign budget | 6,000 - 12,000 GBP | 12,000 - 24,000 GBP | 25,000 - 50,000 GBP |
| Average timeline | 8 - 12 weeks | 6 - 10 weeks | 10 - 16 weeks |
| Contacts | 1 | 2 - 3 | 4 + |
| Retainer availability | Variable | Good | Contractual (SLA) |
| Dependency risk | High | Medium | Low |
For a B2B SME, the local studio offers the best quality/price/responsiveness ratio. A freelancer works when scope is stable; a large agency is justified mainly above 30 pages or with governance constraints.
Mini case study
Marc, director of an industrial trading SME in London (18 staff), redesigns his 2019 site, slow (LCP 4.8 s) and not responsive. Chosen quote: 16,500 GBP for 14 pages, 8-week timeline, retainer 250 GBP/month. Before the redesign the site generated 12 qualified quote requests per month. After reaching a 1.9 s LCP and rebuilding the product pages, it rises to 21 requests/month. If 1 in 6 requests converts into an order with an average net margin of 900 GBP, the monthly gain is (21-12)/6 x 900 = 1,350 GBP. The site pays for itself in about 12 months, retainer included.
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FAQ
Why does a redesign sometimes cost more than a new site?
Because you must audit the existing site, migrate content and preserve acquired SEO (301 redirects). That migration often represents 1,500 to 4,000 GBP that simply does not exist on a from-scratch build.
Can payment be spread out?
Yes, the 2026 standard is 40% on order, 30% at mockup sign-off, 30% on delivery. Some studios offer a 3 to 6 month spread for budgets above 15,000 GBP.
How many pages for an effective B2B website?
Between 8 and 15: home, 3-5 offer pages, references, about, blog, contact. Beyond that you enter institutional scope, with a budget climbing toward 25,000 GBP and above.
Is the retainer really essential?
Yes: without updates, a Next.js site accumulates vulnerabilities and regressions. A 200-300 GBP/month retainer avoids far more expensive emergency rebuilds.
How long before an SEO return?
Expect 3 to 6 months for performance and structure gains to translate into rankings and traffic, provided you publish regular content.
Let's scope your project. Tell us your page count, target timeline and an indicative budget (9,000-24,000 GBP), and we'll frame the redesign. 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.
