If you've looked into getting a UX audit and come away thinking it's not for you, there's a reasonable chance the prices you found belong to a different kind of business entirely.
UK agency UX audits typically start at £5,000 for a fixed-fee engagement. A full website UX project with research and testing included runs £8,000 to £25,000. Enterprise audits go considerably higher. Those prices aren't unreasonable for what they include -- but they're also out of reach for most early-stage ecommerce stores and bootstrapped SaaS founders, and for a lot of those businesses, what they include isn't what's actually needed.
The gap between what agencies charge and what most early-stage sites need is where a lot of legitimate UX problems go unfixed. This article is about that gap. If you want to skip straight to options, our UX and CRO Audit starts at £99 -- but the rest of this will help you understand whether that's the right level of investment for your situation.
What drives the cost of a UX audit
Understanding what you're paying for at each price point helps you decide what you actually need.
The number of pages reviewed is the most direct cost driver. A full ecommerce audit covering product pages, category pages, checkout flow, cart, account creation, and homepage takes significantly longer than a focused review of five key pages. More pages means more time.
Analytics access and depth of review adds cost and complexity. An audit that includes a thorough GA4 review -- funnel analysis, session recordings, cohort comparisons, event tracking validation -- requires access to your accounts and significant time to interpret. That's valuable work, but it's not always necessary to identify the most impactful problems on an early-stage site.
User testing is the most expensive component. Recruiting participants, running sessions, analysing what you find -- this is proper research, and it takes weeks. For an established business optimising a high-traffic funnel, it can be worth it. For a site converting at 1.2% with an eight-field checkout form, it's not. You don't need user testing to tell you the checkout is too long.
The honest reality for most early-stage sites is that the problems are visible to an experienced reviewer without any of this. The checkout asks for too many fields. The mobile experience is broken. The value proposition is unclear. Trust signals are missing. These are not subtle findings that require weeks of research to surface. They're patterns that a structured expert review finds in a few hours, and they're the things costing the most revenue.
Agency overhead is real but rarely discussed. You're not just paying for the audit. You're paying for account management, project coordination, quality review, and margins. None of that is unreasonable from a business perspective. It is, however, part of why a boutique agency charges £8,000 for work that takes one experienced person three to four days.
What you get at different price points
Automated tools (free to around £50/month): PageSpeed Insights, Lighthouse, accessibility scanners. Useful as a starting point -- they'll flag page speed issues, accessibility errors, and some technical problems. They won't tell you why your add-to-cart rate is low, they won't prioritise what to fix first, and they won't catch UX problems that require a human to understand context. Data without diagnosis.
Focused expert audits (£99 to around £500): Structured, human-led review of key pages and conversion paths. A good audit at this price point gives you a prioritised list of specific issues, plain-English explanations of why each one matters, and clear recommendations. For most early-stage sites, this is the appropriate level of investment. It won't cover every page on the site or include a deep analytics review, but it will find the problems that are doing the most damage.
Mid-range audits (£500 to £2,500): Broader scope, more pages, often includes some analytics review and a more detailed roadmap. More appropriate for established businesses with higher traffic or more complex conversion paths.
Full agency engagements (£5,000 and above): Multiple reviewers, user testing components, analytics deep-dives, stakeholder presentations. The right choice for larger businesses where the depth and research methodology genuinely change the output. Not the right choice for a bootstrapped ecommerce store that needs to know why its checkout is leaking.
A note on what early-stage sites actually need
This is worth being direct about, because I see a lot of founders either overspending on depth they don't need yet, or dismissing a focused audit because they've compared it to the agency version and assumed anything cheaper must be a checklist.
An early-stage site -- whether that's a Shopify store doing £150k a year or a SaaS marketing website with 3,000 monthly visitors -- does not have a mystery problem. In almost every case I review, the issues are findable without user testing, without six weeks of analytics analysis, and without a team of consultants. They follow patterns. The same friction points appear across site after site, and an experienced reviewer who has seen those patterns hundreds of times spots them quickly.
The gap between a £500 audit and a £5,000 audit for a site at that stage is usually scope and overhead, not insight. A focused review of your key pages and conversion paths will surface the highest-impact problems. A broader engagement will take longer, cost more, and likely find the same five issues at the top of the priority list.
That's not a criticism of full-scope audits. For larger businesses with more complex funnels, that depth is genuinely warranted. But for most of the businesses reading this article, the focused option is the right one.
The ROI question
The honest answer is that ROI depends on your traffic, your current conversion rate, and what the audit finds. Anyone who quotes you a precise multiplier without knowing those things is making it up.
What I can say is that the maths is usually concrete enough to be worth doing before you make a decision. If your store gets 5,000 visitors a month, converts at 1.5%, and your average order value is £60, you're taking around £4,500 a month. Moving that conversion rate to 2.5% -- a realistic outcome from fixing the kind of problems a focused audit consistently finds -- takes you to £7,500. That's £3,000 a month difference.
You can work through your own numbers with the No-Friction Lab ROI calculator. Put in your traffic, current conversion rate, and average order value, and it shows you what different conversion rate improvements are worth in actual revenue terms. It takes about 30 seconds and makes the question concrete rather than abstract.
"The most expensive audit isn't the one with the highest invoice. It's the one that sits in a folder unread because the findings were too vague to act on. What you actually need is a clear prioritised list of what to fix, with enough explanation to understand why each thing matters."
Alice, No-Friction Lab
Where No-Friction Lab sits in this picture
Our audits currently start at £99, covering 75+ checkpoints across 11 dimensions, delivered within five business days. That price is a launch offer and will rise to £199 -- so if you've been considering it, now is the cheaper time to do it.
The price is lower than agency rates for straightforward reasons: focused scope, direct delivery, no account management overhead. What you get is expert analysis without the agency wrapper.
That's the right fit for early-stage sites, bootstrapped founders, and businesses that need to know what to fix without a five-figure commitment. If you need full-scope analytics review, user testing, and a multi-week engagement, an agency is genuinely the better option. I'd rather be clear about that than oversell what a focused audit does.
Our audit options: Ecommerce UX Audit -- SaaS UX Audit -- UX and CRO Audit.
Not sure which audit is right for you?
Our audits start at £99. Ecommerce, SaaS, and combined UX and CRO options available -- all delivered within 5 business days.
About the author
Alice
Founder, No-Friction Lab
Alice brings 10+ years of hands-on UX, CRO, and experimentation experience across Sky, Stowe Family Law, B2B ecommerce, and professional services. She's run large-scale experimentation programmes from scratch and squeezed meaningful results from minimal budgets.
That breadth of context is what makes the audits different: every finding is reviewed by someone who's seen what actually moves the needle, not just what the textbook says should.