Short answer
Keep the current website when its foundations are sound; rebuild when structure and technology block every meaningful improvement.
When improvements make sense
If the website loads reliably, has a workable CMS and the main problem is copy, design, forms or a few templates, focused work is usually faster and more economical.
Preserve search URLs and working integrations while improving the parts that affect customers.
When a rebuild is safer
A rebuild becomes reasonable when the code is unsupported, mobile layouts are fundamentally broken, the structure cannot support new services or every update creates another failure.
The new site should include a redirect and content migration plan so existing search value is not discarded.
Audit before deciding
Review technical health, content, analytics, rankings and business plans together. A visual judgement alone can lead to unnecessary cost.
A short audit should end with priorities, risks and an estimate for both options.
A useful next check
- Can the right customer recognise the offer in the first screen?
- Are price, timing and scope explained clearly enough to qualify an enquiry?
- Do forms, phone links and WhatsApp work on a real mobile device?
- Is there evidence behind the main claims?
- Can search systems access a complete, stable page?