Conversion Rate Optimisation UK: Finding and Fixing the Leaks UK Buyers Hit, With Experiments That Run Under PECR
If traffic is up and enquiries or orders are not, and you are looking for a conversion rate optimisation agency in the UK, this page is built for that situation. UK sites leak revenue in a particular shape: a consent banner that blocks the page on mobile, prices shown without VAT to a consumer who expects them with it, a form that asks for a phone number before it has earned one, a checkout without Apple Pay or Klarna, a Trustpilot widget showing a score the page text contradicts. Below you will find which of our CRO services fits your symptom, the leaks we find most often on UK sites, and what a programme costs in GBP.
Our UK CRO programmes start by measuring what actually happens with consent-mode data, then run the research, experiments and page fixes that recover the most revenue per visit first. Everything is reported in GBP as revenue or enquiries per visit, not as a conversion rate in isolation. The service types are listed below with the fit for each; the free review shows where your site is leaking.
Which UK CRO service fits
Match the row to the symptom; the free review confirms where the revenue is leaking and a GBP estimate.
| If this is you | Start with |
|---|---|
| Site-wide: traffic has grown, enquiries or orders have not, and nobody knows which pages are responsible | Website CRO: measurement audit, research, prioritised experiment programme |
| Paid campaigns landing on pages that convert below the account’s targets | Landing page CRO: page-level research, variants, consent-safe testing |
| eCommerce store with high basket abandonment at delivery, payment or account creation | Website CRO with checkout focus: delivery messaging, payment methods, guest checkout |
| B2B site where demo and quote forms underperform | Website CRO with form and qualification focus |
UK CRO services
Each card opens a service page with scope, GBP pricing and FAQs for UK businesses.
More UK conversion rate optimisation pages (2)
Further UK pages in this section. The services above are the ones most UK clients start with; these cover narrower situations.
The leaks we find most often on UK websites
These come from UK conversion reviews over the past two years, ordered by how much revenue they typically recover when fixed.
| Leak | Why it happens in the UK | What we test or fix | Typical effect |
|---|---|---|---|
| Consent banner blocks the page on mobile | PECR requires consent before non-essential cookies; many banners are implemented as full-screen blockers | Non-blocking banner, consent mode so GA4 models declined sessions, call-to-action visible above the banner | Fewer bounces on mobile; measurable data returns |
| Prices shown ex-VAT to consumers | B2B habits carried into B2C pages; CAP Code requires consumer prices to include VAT | VAT-inclusive display with the ex-VAT figure for business buyers where relevant | Lower checkout abandonment, fewer complaints |
| Missing Apple Pay, Google Pay, PayPal or Klarna | UK mobile buyers expect one-tap payment; card-only checkouts lose them | Express payment buttons tested on product and basket pages | Higher mobile checkout completion |
| Delivery and returns unclear until checkout | Royal Mail, DPD and Evri timings vary; buyers want to know before they commit | Delivery promise on product pages, returns summary near the buy button | Fewer basket exits at delivery step |
| Forms that ask for too much, too early | Lead forms built for sales qualification rather than for the visitor | Shorter first step, phone number optional, progressive questions, GDPR notice in plain English | More enquiries at similar quality |
| Review proof that contradicts the page | Trustpilot or Google widgets showing old or low scores next to strong claims | Review strategy, widget placement, claims aligned with evidence under the CAP Code | Higher trust on decision pages |
UK CRO programmes are priced in GBP: a conversion review and measurement audit from £1,500, monthly experiment programmes £2,000–£6,000 depending on traffic and pages in scope, excluding VAT. Ranges are indicative; the free review sets the figure.
Results from the same process
The result below is one documented example from the same process; the client’s name is withheld under NDA and the figures come from their analytics, not estimates.
- Page 1High-intent terms
- 5×Organic enquiries
- 6 monthsTime to that result
- Financial servicesRegulated, trust-dependent category
How we work in the United Kingdom
- 1Free conversion review (days 1–3)Mobile walk-through of the enquiry or purchase path, consent and measurement check, the top leaks ranked by revenue at stake and a GBP estimate.
- 2Measurement and research (weeks 1–3)Consent mode and GA4 events verified, session recordings and surveys where PECR allows, customer interviews, a prioritised hypothesis list.
- 3Experiments and fixes (months 1–3)A/B tests where traffic supports them, direct fixes where it does not, each documented with the before-and-after in GBP per visit.
- 4Report and compound (month 4 onward)Monthly report of revenue or enquiries per visit by page, the experiments run and the next hypotheses; month to month, thirty days’ notice.
“Ren Hao SEO turned organic search into our biggest pipeline source. We finally have a channel that compounds.”
“The transparency is unlike any agency we’ve worked with. We always know what’s happening and why.”
Frequently asked questions
How much does conversion rate optimisation cost in the UK?
Can you run A/B tests on a UK site without breaching PECR?
How much traffic do we need for CRO to work?
Do you work with UK businesses remotely?
How is CRO different from your SEO services?
About this page
Written by the Ren Hao SEO team and reviewed by Ren Hao, Founder & Lead SEO Strategist (LinkedIn). Ren Hao SEO is an international SEO agency headquartered in Johor Bahru, Malaysia, serving eight country markets including the United Kingdom (company LinkedIn). Last substantive update: October 2026. Pricing ranges come from our UK SEO pricing guide; the case result is documented in the linked case study. Drafting is assisted by AI tools and every page is edited and fact-checked by our team before publication; see how we create our content. For bringing more qualified visitors to the pages you optimise see SEO services UK; for a rebuild rather than fixes see web design UK.