SEO Services: What They Cost and How to Choose a Provider
Almost every page explaining what SEO costs was written by someone who sells SEO. That is worth holding in mind while you read this one too — so, plainly: we do not sell SEO retainers. Both our essential website audit and our full Deep Scan are free on this site (three free when you create a free account and one free each month after that, then £9.99 for another, or Pro at £14.99 a month for 15). That is the whole commercial interest behind this page.
What follows is what the actual pricing data says, what the three kinds of SEO work really are, and how to tell a provider who has looked at your site from one who has not.
What SEO services actually cost
There is no independent UK survey of SEO pricing. That absence explains a lot about the figures you will find: most “how much does SEO cost” pages are marketing published by agencies, and the ranges they quote tend to start conveniently near what they charge.
The best available data is the Ahrefs SEO pricing survey, which polled 439 SEO providers and verified each one offered SEO. It is global and in US dollars, so read it for shape rather than for a UK quote:
| Figure | |
|---|---|
| Average agency retainer | $3,209 / month |
| Average consultant retainer | $3,250 / month |
| Average freelancer retainer | $1,348 / month |
| Most common retainer band | $501–$1,000 (20.4% of respondents) |
| Share charging $501–$2,000 | 42.8% |
| Average agency hourly rate | $98.90 |
| Most common hourly rate | $75–$100 (24%) |
| Providers using monthly retainers | 78.2% |
Note the gap between the average and the mode. The average agency retainer is $3,209, but the most common price anyone actually charges is under $1,000 — a handful of large contracts drag the mean upward. If a provider tells you “the market rate is around three thousand a month”, they are quoting the average, not the typical.
Experience moves the number more than anything else: providers past two years in business charge roughly a third more, and past five years the average retainer reaches $3,648.
For UK figures, Whito’s analysis of UK agency retainers is the most transparent one we found — it states its sources (agency rate cards, Clutch, The Drum, HubSpot partner data), its collection window (January to May 2026), and its own limits. It puts single-channel retainers at £1,250–£3,500 a month and full-service at £3,500–£16,750. It does not disclose a sample size, so treat it as a well-documented estimate rather than a survey.
The three kinds of work, and which one you need
“SEO services” bundles three quite different jobs. Providers sell them together; your site probably needs them in very unequal amounts.
Technical. Making the site reachable and readable — crawler access, indexability, redirects, sitemaps, structured data, page speed, transport security. This is the work our own audit engine checks, across 273 individual checks in five groups, and it is the most measurable of the three: a finding either names a specific page and tag, or it is not a finding.
Content. Answering what customers actually search for, in a form a person or a model can extract an answer from. Slow to show results, and the hardest to outsource well, because it needs someone who understands what you sell.
Authority. Links, mentions, reviews, consistent business details across directories and registers. Genuinely compounds over time, and genuinely the easiest place for a provider to bill for activity without outcome.
Why this matters for whether you need a retainer
Our audit weights findings by severity — critical issues score 22 points against you, high 9, medium 3, low 1 — because in practice a blocked crawler dominates a dozen cosmetic warnings. The methodology page sets out the arithmetic.
The useful thing about that ranking, from a buyer’s point of view, is what tends to sit at the top of it. The findings that cost the most visibility are overwhelmingly one-off technical fixes: a robots.txt line blocking AI crawlers, a noindex left on after a redesign, a sitemap returning 404, a homepage that renders only for real browsers, a missing business record. Those are afternoons of work, not months.
A monthly retainer is the right shape for content and authority, which need sustained effort. It is the wrong shape for a single stray directive in a text file. Plenty of businesses sign a twelve-month contract to solve a problem that a competent developer fixes before lunch — and because the fix does work, the retainer gets the credit.
Find out which situation you are in before you buy either.
What to ask, and what a real answer sounds like
The single most useful question is “what did you find?” — asked before price, scope or process. A provider who has spent twenty minutes on your site can answer it concretely. One who has not will answer with methodology.
| Vague | Specific |
|---|---|
| “Your technical SEO needs work.” | “Your /services/ pages have no canonical tag and three of them are duplicated under ?ref= parameters.” |
| “We’ll improve your structured data.” | “Your Organization block has no sameAs links, so nothing connects the site to your Companies House record.” |
| “We’ll build high-quality backlinks.” | “You have twelve referring domains; your two closest competitors have sixty and ninety, mostly from local press and trade bodies.” |
| “Results usually come in 3–6 months.” | “The noindex fix should show in a couple of weeks once Google recrawls; the content work will take until spring.” |
Then the practical ones:
- Which specific pages will change, and who writes the changes — you or them?
- What is excluded from the price? (Development time is the usual answer.)
- What happens to the work if you leave — do you keep the content and the accounts?
- Will they show the before state, not just the after?
- Who does the technical work, and are they a developer?
Nobody controls Google. A guaranteed position is either a misunderstanding of how ranking works or a deliberate one, and both are disqualifying.
Warning signs
- Reports that show rankings but not work done. A ranking chart is an outcome you cannot audit. A list of changed URLs is.
- No page changes for months. If nothing on the site is different, nothing was done to it.
- They cannot name a completed technical fix. Not “we optimised the site” — which file, which line.
- Traffic moves and nobody explains why. Both directions. An unexplained rise is as much a gap as an unexplained fall.
- Many thin new pages with repeated text. This is the pattern Google’s spam policies call scaled content abuse, and it is done to your domain, not for it.
- Questions about method get answered with confidentiality. There is no proprietary secret in fixing a canonical tag.
How providers charge
About 78% of providers work on a monthly retainer, which suits ongoing content and authority work and gives them predictable revenue. It is the default, not necessarily the right fit.
A fixed-price project suits a defined job — a migration, an audit-and-fix, a batch of technical work. It is also the cheapest way to test whether you want to work with someone before committing to a year.
Hourly ($75–$100 is the most common band) works for advisory input where you have your own developer and need direction rather than delivery.
Whichever model, ask for the work list. A price with no itemised scope tells you nothing about value, and it is the single most common way SEO spending disappears.
Where to start
Get an independent read on your own site first, so that every proposal you receive can be checked against something. That is the entire reason the free audit exists and asks only for an email address to send the results to: the findings are yours, and you are welcome to hand them to a provider who is not us.
If you serve a defined area, local SEO covers what changes when the map pack matters more than the blue links. If budget is the binding constraint, SEO for small business covers what to do in what order. And if you are not yet sure whether the problem is technical at all, why your business does not appear on Google works through the usual causes.
Frequently asked questions
How much do SEO services cost?
The largest published survey of SEO providers — 439 of them, by Ahrefs — found agencies average $3,209 a month, but the single most common retainer band is $501 to $1,000, charged by 20.4% of respondents. UK-specific figures are harder to trust because almost all of them are published by agencies selling the service. One UK analysis that discloses its method puts single-channel retainers at £1,250 to £3,500 a month.
What do SEO services include?
Broadly three things: technical work (making the site reachable and readable), content work (answering what customers actually search for), and authority work (links, mentions, reviews, consistent business details). Most sites do not need equal amounts of all three, and knowing which one you need is most of the decision.
Do I need a monthly SEO retainer?
Not always. The problems that cost the most visibility — a blocked crawler, a stray noindex tag, a broken sitemap, a missing business record — are usually one-off fixes measured in hours, not ongoing work. A retainer earns its keep on content and authority, which genuinely compound over months.
How do I choose an SEO company?
Ask what they found before you ask what they charge. A provider who has looked at your site can name the page, the tag and the file. One who has not will talk about strategy and process. Any guarantee of a specific ranking position is a reason to stop the conversation.
How long do SEO services take to work?
Technical fixes can show up within days or weeks of being recrawled. Content and authority work generally need three to six months before the effect is readable, and anyone offering a firm date for a firm position is guessing.