Choosing an SEO company in the UK is harder than it should be — every agency’s homepage says roughly the same thing: “results-driven,” “data-led,” “bespoke strategy.” This guide cuts through that and gives you a practical framework for comparing agencies on substance, not marketing copy.
What to look for before you shortlist anyone
1. Transparent reporting access
A credible SEO agency will give you direct access to your Search Console, GA4, and rank tracking data — not just a monthly PDF summary. If access is withheld, treat that as a warning sign.
2. Industry-relevant case studies
Generic “we grew traffic 300%” case studies without context are close to meaningless. Ask for examples from your specific industry or business size, and ask what the starting point looked like.
3. A clear month-one plan
Any competent agency should identify 2–3 concrete quick wins on a discovery call, before a contract is signed. Vague answers (“we’ll run a full audit first”) usually mean they haven’t actually looked at your site yet.
Realistic SEO pricing in the UK (2026)
| Scope | Typical monthly cost |
|---|---|
| Small local business | £400–£1,000 |
| Mid-size national business | £1,000–£3,000 |
| Ecommerce / SaaS / competitive B2B | £2,500–£6,000+ |
Pricing below the small-business range typically indicates templated, low-touch delivery rather than genuine strategy.
Questions to ask every agency on your shortlist
- What will you deliver in month one, specifically?
- Who will be working on my account, and for how long have they worked there?
- Can I speak directly with a current client?
- How do you define success beyond rankings — leads, revenue, or traffic alone?
- What’s your approach to reporting, and can I see a real (anonymised) example?
Red flags to walk away from
- Guaranteed #1 rankings (no legitimate agency can guarantee this)
- Vague, jargon-heavy proposals with no site-specific detail
- Backlink strategies with no explanation of source quality
- Long lock-in contracts with no performance-based exit clause
Want a straight assessment of your own SEO?
Book a free 30-minute consultation call and I'll tell you what I'd do in month one — no pitch deck, no lock-in contract.
Related reading
Frequently Asked Questions
How do I know if an SEO agency in the UK is legitimate?
Check for verifiable client references, transparent reporting access, and realistic (not guaranteed) ranking timelines.
What’s a normal SEO contract length in the UK?
Most reputable agencies work on 3–6 month minimum terms, reflecting the time SEO genuinely needs to show measurable results.