Most business owners keep a tired website far too long for a simple reason: it still technically works. The pages load, the form sends, nothing is visibly broken, so it stays, year after year.
Working is a low bar. A website should be one of the hardest-working salespeople you have, and a site can load perfectly while losing you work every week. The cost is easy to miss, because you never see the enquiries you did not get.
The bar has also moved. Google now judges sites on their mobile versions, AI Overviews appear above the results for a large share of searches, and customers increasingly ask ChatGPT for a recommendation before they click anything. Below are the seven signs I look for when deciding whether a business needs a new site, what each one costs you and the fix. At the end there is a simple scoring test and a guide to choosing between a redesign and a rebuild.
How do you know when it is time for a new website?
It is time when the site is losing you work faster than a new one would cost. None of the signs below is fatal on its own. One usually calls for a tidy-up. Two or three together, especially the technical ones, almost always mean the old site has become the expensive option.
Age alone is a poor guide. A well-built site from a few years ago can still perform, while a site launched last year on a heavy template can already be holding you back. Judge it on what it does for the business.
1. Is your website slow, especially on mobile?
A slow site loses visitors before they see your offer, and speed also feeds into how Google assesses page experience. Google measures it through three Core Web Vitals: the main content should appear within 2.5 seconds, the page should respond to a tap within 200 milliseconds, and the layout should not jump around as it loads (a shift score of 0.1 or less).
Small gains matter. A Deloitte study for Google found that a 0.1 second improvement in mobile speed lifted the share of lead generation visitors reaching the form submission page by 21.6%. The research is from 2019, so treat the precise number with care, but the direction is clear.
The fix: test your main pages in PageSpeed Insights and on a real phone over mobile data. Oversized images, bloated templates and stacks of plugins and scripts are the usual causes. If compressing images and removing scripts does not get you into the green, the underlying build is the problem, and that points to a rebuild.
2. Does your website work properly on a phone?
Slow is one problem; awkward is another. If buttons are hard to tap, text needs pinching to read or the layout breaks on a small screen, you are failing most of your visitors at the first interaction. Ofcom's Online Nation 2025 report found that most of the time UK adults spend online is on a smartphone.
Google also announced in October 2023 that its move to mobile-first indexing was complete, so it crawls and judges the mobile version of your pages. A poor mobile experience drags your visibility down everywhere, desktop included.
The fix: a mobile-first build, designed for the phone and then scaled up to the desktop. Retrofitting mobile onto an old desktop layout rarely works well, which is why this sign so often points to a rebuild.
3. Can you update your website yourself?
If changing a price, adding a service or posting news means waiting on a developer and paying a bill, the site becomes a bottleneck. In practice nothing gets updated, the content goes stale and the site slowly drifts away from the truth of your business. Stale pages also feed Google and AI tools out-of-date information about what you do.
Neglect carries a security cost too. The UK government's Cyber Security Breaches Survey 2025 found that 43% of businesses had identified a breach or attack in the previous 12 months, with phishing the most common. An old site running out-of-date plugins and themes adds another door for attackers to try.
The fix: a site built on a content management system your team can edit without code, on managed hosting with SSL, security monitoring and regular backups handled for you.
4. Can customers find you on Google and in AI answers?
If you do not appear when people search for what you offer, the site is failing at its most important job. In 2026 that means two things: ranking in the normal results, and being the business that AI tools mention.
The shift is real. Ofcom reports that around 30% of searches now show an AI Overview. Pew Research Center found people clicked a traditional result on 8% of visits to pages with an AI summary, against 15% without one. And BrightLocal's 2026 Local Consumer Review Survey found 45% of US consumers now use ChatGPT or other AI tools for local recommendations. AI tools read your website to decide whether to mention you, so an unclear, poorly structured site is invisible to them as well.
The fix: proper SEO, AEO and GEO work on a technically sound site: clear service pages that answer real questions, structured data, and consistent business details everywhere you are listed. To see where you stand today, run the free Cited AI visibility check, which scores 15 signals. If the existing site is slow or badly structured, the foundations work against you and visibility is hard to fix without addressing them.
5. Does your website look dated or off-brand?
A dated look quietly signals a dated business. Visitors judge credibility quickly, largely from how current and considered the site feels. If the site no longer reflects the quality of your work, your prices or your positioning, it costs you trust at the moment people decide whether to enquire. This sign is common in businesses that have grown: the site was built for the company you were five years ago, and your best customers now expect more.
The fix: at minimum, a redesign aligned to your current brand and positioning. If the dated look comes with any of the technical signs above, a rebuild usually makes more sense than repainting a weak structure.
6. Is your website generating enquiries?
This is the decisive sign. A website should bring in work. Plenty of sites tick along with steady traffic and almost no enquiries, and if yours is one of them, you are paying to host a digital leaflet.
Check the numbers before you assume anything. Make sure form submissions and phone taps are tracked as key events in Google Analytics, work out your enquiries per hundred visitors, and fill in your own contact form to confirm the messages actually arrive.
The fix: diagnose the conversion leaks before assuming you need a whole new site. We walk through the five most common in why your website isn't converting. Sometimes the answer is a clearer headline and a shorter form. Sometimes the site is too weak to carry those fixes, and a rebuild is the faster route.
7. Do you avoid sending people to your website?
This is the simplest and most honest sign of all. If you hesitate before sending a prospect to your own website, part of you already knows it does not do you justice. Your website should be something you are happy to put in front of your best potential client.
The fix: trust the instinct. If you would not confidently hand over the address in a sales conversation, it is time for a new site.
How do you score your own website?
Run your site through the seven signs and give yourself one point for each that applies.
| # | Sign | Type |
|---|---|---|
| 1 | Slow, especially on mobile | Technical |
| 2 | Awkward or broken on a phone | Technical |
| 3 | You cannot update it yourself | Technical |
| 4 | Invisible on Google and in AI answers | Technical |
| 5 | Dated or off-brand | Look and message |
| 6 | Few or no enquiries | Look and message |
| 7 | You avoid sharing it | Look and message |
- 0 to 1: the site is broadly fit for purpose. Fix the weak spot and move on.
- 2 to 3: the site is leaking work. Targeted fixes or a focused redesign should pay back quickly.
- 4 or more: the site is costing you more than a new one would, and it is time to plan a rebuild.
Should you redesign or rebuild your website?
The two are different, and choosing wrongly wastes money. A redesign changes how the site looks and reads on the existing foundations. A rebuild replaces the foundations as well.
| Redesign | Rebuild | |
|---|---|---|
| Best when | The foundations are sound and only the look and message are tired | The site is slow, hard to manage or invisible in search |
| Fixes | Brand, messaging, layout, calls to action | All of those, plus speed, structure, mobile and ease of updating |
| Signs that point here | Mostly 5, 6 and 7 | Any of 1 to 4 in the mix |
As a rule, if your points come from the technical signs, rebuild, because polishing the surface of a weak structure does not last. If they come only from look and message, a redesign may be enough.
What does a rebuild look like for a South Wales business?
Pest & Property Solutions, a Cardiff pest control company, is a good local example of what a rebuild can do when the old site is holding a business back. The new site went live in June 2026 and brought in 112 enquiries in its first 36 days, with 82.7% of them from Google organic search. It now averages about four enquiries a day from organic traffic, and the company's 344 Google reviews give visitors the confidence to get in touch. You can read how it was done in the Pest & Property Solutions case study.
For trades and service businesses across Cardiff, the Vale and the Valleys, local search is competitive, and the website is one of the few parts of it you fully control. A fast, clear, mobile-first site backed by genuine reviews is one of the most practical advantages a local business can give itself.
What should you do next?
Score your site this week. If you land on two or more, list which signs apply and whether they are technical or about look and message, because that decides the route. Then get a fixed scope and a fixed price before anything starts.
If you would rather spread the cost, our website packages start at £350 a month plus VAT on a 12-month term, with a fixed scope and the site live in 30 days. Design, build, copywriting, on-page SEO foundations, hosting, security and backups are included.
