La Refonte

La Refonte insights

Website redesign: 7 keysteps for success in 2026

Is your website more than three years old? Follow seven practical redesign steps covering audit, UX, SEO, development and launch, with costs and real SME examples.

  • Website redesign
  • Digital strategy
  • SEO
  • SMEs
Refonte de Site Web

Refonte

Agence SEO

SEO

Intégration IA

IA

📌 Key takeaways

  • A successful website redesign follows seven clear stages, from initial audit to post-launch monitoring.
  • 72% of SMEs see organic traffic rise by 40% within six months of a well-managed redesign (HubSpot, 2025).
  • A redesign typically costs €3,000–€25,000 depending on complexity.
  • 301 redirects and SEO migration are the most critical safeguards for Google rankings.
  • A structured specification reduces budget and schedule overruns by 60%.

What is a website redesign?

A website redesign rebuilds all or part of an existing website: its design, structure, content and technical code. Unlike a cosmetic refresh, it rethinks the site structure, improves user journeys and modernises the technology.

Google reported in 2025 that 53% of mobile visitors leave pages taking more than three seconds to load. Where usability, speed or SEO problems have accumulated, a redesign becomes an investment rather than an expense: the new website converts better, ranks better and supports growth.

72%

of SMEs see 40% more traffic after redesign (HubSpot, 2025)

€3–25K

typical brochure-site redesign budget

53%

of visitors leave a slow website (Google, 2025)

60%

of overruns avoided with a specification

The 3 types of redesign: which should you choose?

Redesigns differ widely. Identifying the appropriate scope before starting prevents over-investment and ensures the real problems are addressed.

The three website-redesign types and indicative 2026 budgets
Redesign typeWhat changesIndicative budgetBest for
Visual redesignDesign, visual identity and layout; no code or structural change€1,500–€5,000A functional but dated-looking website
Structural redesignStructure, UX, journeys and CMS; design retained or lightly updated€4,000–€15,000Conversion or usability problems
Complete redesignDesign, structure, technology, SEO migration and content€8,000–€80,000An obsolete website, CMS migration or new offer

7 signs you need an immediate redesign

A website more than three years old can accumulate invisible technical debt. Semrush reported in 2025 that non-responsive websites lose 68% of mobile traffic on average. Watch for these warnings before performance decline becomes irreversible.

  1. 1Bounce rate above 65%: visitors leave without engaging, signalling dated content or design.
  2. 2Load time above three seconds: every extra second cuts conversions by 7% (Akamai, 2024).
  3. 3Non-responsive design: 60% of web traffic is mobile (Statista, 2025).
  4. 4Organic traffic decline: a fall of more than 20% over three months suggests a structural issue.
  5. 5Content cannot be updated: an obsolete CMS or tangled code blocks marketing.
  6. 6Falling conversion rate: traffic arrives but no longer becomes enquiries.
  7. 7Recent rebrand: the website still displays the old identity.

Before redesign

  • Dated, non-responsive design
  • Load time above five seconds
  • 72% bounce rate
  • No monthly organic leads
  • Content cannot be changed

After redesign

  • Modern, mobile-first design
  • LCP below two seconds
  • 38% bounce rate
  • 25+ organic leads a month
  • Team independent in the CMS

The 7 stages of a successful website redesign

A structured redesign avoids 60% of budget overruns (Standish Group, 2024). Each stage follows the last; skipping the audit to begin with design is the leading cause of failure. This process has been used across more than 50 SME projects.

The 7 stages of your redesign

  1. 1

    Étape 1

    Audit the existing website

    Review Core Web Vitals and speed, SEO rankings, organic traffic and links, and UX journeys and conversion. Use Analytics and Search Console; an in-depth audit takes one to two weeks.

  2. 2

    Étape 2

    Write the project specification

    Set traffic and conversion goals, scope, budget and schedule. Include personas, priority journeys and technical constraints; without this document, repeated changes can double costs.

  3. 3

    Étape 3

    Redesign structure and content

    Use audit data to restructure around strong pages, promising keywords and conversion journeys. Give each page one search intent, remove zombie pages with fewer than ten monthly visits and strengthen pillars.

  4. 4

    Étape 4

    Create UX/UI designs and a prototype

    Build wireframes and high-fidelity designs mobile-first. Test with five real users, which identifies 85% of usability problems (Nielsen Norman Group, 2024). User experience directly affects conversion.

  5. 5

    Étape 5

    Develop and integrate

    Choose WordPress, Webflow or custom development to suit the need. Prioritise LCP below 2.5 seconds, WCAG 2.1 AA accessibility and HTTPS security, using staging for safe tests.

  6. 6

    Étape 6

    Migrate SEO and implement 301 redirects

    Map every existing URL to a new destination. Submit the sitemap to Search Console at launch. The SEO migration is the stage 80% of agencies mishandle.

  7. 7

    Étape 7

    Launch, test and monitor

    Check every page on mobile and desktop, forms, internal links and speed. Monitor Core Web Vitals, traffic and rankings for 90 days and fix Search Console 404s immediately.

Diagram of the seven website-redesign stages on a whiteboard with arrows and coloured icons
The seven stages, from diagnosis to post-launch monitoring

How much does a website redesign cost?

Prices range from €2,000 to €80,000 by website type, technical complexity and supplier. A 2024 Bpifrance study placed the average French SME brochure-site redesign at €8,500. An e-commerce website costs two to five times more.

2026 website-redesign price ranges (source: La Refonte, 2024–2025 client data)
Website typePrice rangeTypical timeComplexity
Brochure site (5–10 pages)€2,000–€8,0004–8 weeksLow
Advanced brochure site (15–30 pages)€8,000–€20,0008–12 weeksMedium
E-commerce (<500 products)€10,000–€35,00010–16 weeksHigh
E-commerce (>500 products)€25,000–€80,00016–24 weeksVery high
Web application/custom build€20,000–€100,000+12–24 weeksVery high

Beware unusually low quotations

  • A brochure-site quote below €2,000 often hides an uncustomised template, no SEO and no content migration.
  • Always ask whether SEO, 301 redirects, first-year hosting and CMS documentation are included.
  • Compare at least three quotations and check references for similar projects.

Redesigns and SEO: protect your Google rankings

Ahrefs reported in 2025 that 34% of websites lose more than 20% of organic traffic after a poorly managed redesign. Every changed URL needs a permanent 301 redirect; otherwise Google encounters 404s and gradually demotes pages.

Export indexed URLs from Search Console before launch and map old to new. After go-live, monitor coverage for 90 days and fix every 404. A structured technical SEO plan protects existing value and speeds Googlebot’s recrawl.

2 SMEs transformed by a redesign

These two SMEs invested in structured redesigns and measured the results over six months.

Our old WordPress website dated from 2019 and loaded in seven seconds. After a complete redesign, better hosting and SEO work, organic traffic rose from 800 to 2,300 visits a month within five months. Quotation requests tripled.
SMSophie MarchandDirector : Marchand & Associés accountancy practice (12 staff)
We lost 40% of mobile visitors. A mobile-first design, simpler structure and improved forms reduced bounce rate from 71% to 35% and increased qualified leads by 65% within four months. The investment paid back in three months.
TDThomas DurandManaging director : Durand Plomberie (8 staff)

5 critical redesign mistakes to avoid

Standish Group reported in 2024 that 68% of web projects exceed their initial budget. These five avoidable errors recur in most failed redesigns.

  1. 1Neglecting 301 redirects: every removed URL without one creates a 404 and can cost up to 50% of organic traffic in six months.
  2. 2Copying old content unchanged: redesign is the opportunity to restructure, rewrite and optimise each page.
  3. 3Launching without mobile tests: with 60% mobile traffic, desktop-only tests cause an immediate conversion decline.
  4. 4Skipping the specification: uncontrolled changes inflate budgets. The <a href="/en/blog/website-redesign-checklist">redesign checklist</a> is your safeguard.
  5. 5Choosing on price alone: the cheapest supplier often costs more in corrections, delay and poor performance.

Choosing the right redesign supplier

The supplier determines 80% of project success (Clutch, 2025). Freelancer, specialist agency or IT services company: the right option depends on budget and complexity. Favour someone experienced in the target CMS who includes SEO from the audit, not at the last minute.

Ask for comparable sector cases. Ensure the quotation covers the audit, UX/UI design, development, SEO migration, CMS documentation and at least three months of post-launch monitoring. A serious web agency itemises every part.

Your website deserves more than a cosmetic refresh

We audit your website, identify growth levers and deliver a tailored redesign covering design, SEO and performance, with measurable results within 90 days.

Learn more

Website redesign: investment or expense?

A sound redesign is a measurable investment. SMEs following audit → specification → UX → development → SEO migration → monitoring see an average 40% traffic and 55% conversion increase within six months (HubSpot, 2025). Do not skip stages; protect existing SEO and choose an accountable supplier.

Frequently asked questions

Allow €2,000–€8,000 for a simple brochure site, €8,000–€20,000 for an advanced one and €10,000–€80,000 for e-commerce, depending on pages, features, SEO migration and CMS.

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