If you’ve Googled “how much does SEO cost” and found yourself staring at price ranges so wide they’re basically useless- you’re not imagining it. “It depends” is the most honest answer in SEO, but it doesn’t actually help you plan a budget.
So here’s the short answer before we go any further:
| The short answer |
| • Monthly SEO retainer for a B2B firm: £500 – £3,000+ per month |
| • One-off SEO audit: £500 – £2,500 depending on site size and depth |
| • Hourly SEO consultancy: £75 – £200 per hour |
| • Project-based work (e.g. site migration): £1,500 – £10,000+ |
What those numbers mean in practice- what you actually get, what moves the needle, and what’s a waste of money- depends a great deal on the kind of business you’re running. This guide is written specifically for B2B professional services firms: law firms, finance businesses, consultancies, local businesses and property companies. If you’re an e-commerce brand or a consumer app, some of this will still apply, but you’ll find the specifics here are tailored to your world.
1. Why B2B SEO has different cost drivers
Most SEO pricing guides treat all businesses the same. They’ll tell you that a small business should spend £500–£1,000 a month and a large enterprise should spend £10,000+, as if the only variable is company size. For B2B professional services, that framing misses the point entirely.
Here’s what actually drives costs for firms like yours:
| Cost driver | Why it matters for B2B |
| Low search volumes, high intent | B2B keywords are searched far less frequently than consumer terms — but a single client win can be worth £50k+. The economics are different, so the content strategy has to be too. |
| Long sales cycles | Your buyers aren’t converting on first visit. SEO for B2B needs to support a 3–12 month decision journey, which means more content, more touchpoints, and more sophisticated strategy. |
| E-E-A-T requirements | Google weighs expertise, experience, authority, and trust much more heavily for regulated or high-stakes sectors like law and finance. Generic content won’t rank — it needs to demonstrate real expertise. |
| Niche audiences | You’re not targeting everyone. Reaching 50 of the right people is worth more than 5,000 random visitors. Keyword research and content creation takes more precision. |
| Competitive landscape | Ranking against established law firms or consultancies with large in-house marketing teams requires more sustained investment than a local trades business. |
2. What you get at each price point
Let’s be direct about what different budget levels realistically deliver. These are honest assessments — not an attempt to upsell you on the most expensive package.
Under £500/month
At this price point, you’re in DIY-with-guidance territory. Some freelancers work at this level for very small, straightforward sites with minimal competition. For a professional services firm with any ambition, this budget doesn’t stretch to meaningful ongoing strategy, content creation, and technical maintenance simultaneously. You may get reporting and advice, but implementation will largely fall to you.
Where it can work: one-off technical fixes, a basic audit, or guidance sessions if you have an in-house team to execute.
£500 – £1,000/month
A solid starting point for a smaller firm with a relatively simple site, limited competition, and a focused set of target keywords. At this level, you should expect monthly reporting, keyword tracking, some on-page optimisation, and perhaps one piece of content per month. Don’t expect a comprehensive content strategy, link building, or significant technical work.
Best for: firms early in their SEO journey who want to establish the foundations before scaling investment.
£1,000 – £2,000/month
This is where sustained progress becomes realistic for most B2B professional services firms. A good consultant or small agency at this level should be delivering regular content (two to four pieces per month), ongoing technical SEO monitoring, local SEO work where relevant, and proper keyword and competitor tracking. You should also be seeing measurable movement in rankings within three to six months.
Best for: established firms who want consistent organic growth and are ready to treat SEO as a proper channel, not an afterthought.
£2,000 – £3,500/month
At this investment level, you’re getting a genuinely comprehensive programme: content strategy, content production, technical SEO, link building activity, CRO input, AI search visibility (GEO), and detailed reporting with strategic recommendations. For firms in competitive sectors — city-based law firms, financial advisers, larger consultancies — this is the level where you can realistically compete.
Best for: growth-stage firms in competitive markets who want SEO to be a primary lead generation channel.
£3,500+/month
Enterprise-level investment, typically suited to larger organisations with multiple service lines, complex site architectures, or national/international ambitions. At this level you’d expect a full team across strategy, content, technical, and PR. Worth noting: for most boutique professional services firms, this level of spend before results are demonstrated is a risk. Start at a level where results are measurable and scale from there.
| Envision SEO pricing — what we charge |
| • Essential plan from £500/month — foundational SEO, monthly reporting, keyword tracking, on-page optimisation |
| • Growth plan from £750/month — content strategy, regular content production, technical SEO, local SEO |
| • Authority plan from £1,250/month — full programme including GEO/AI search, link building, CRO input, priority support |
| • SEO audits from £500 — standalone technical and content audit with prioritised recommendations |
| • Hourly consultancy at £150/hour — for specific questions, strategy sessions, or team training |
3. The three pricing models — and which suits B2B best
SEO services are typically priced in one of three ways. Each has its place, but for B2B professional services, one model consistently outperforms the others.
Monthly retainer
The most common model, and for ongoing SEO the right one. A retainer means your consultant or agency has committed time each month — for strategy, implementation, content, reporting, and responding to whatever Google throws at you (algorithm updates, technical issues, new opportunities). SEO is not a one-and-done project. It’s a channel that requires consistent attention to produce compounding results.
The right choice for: any firm that wants SEO to be a genuine, sustained source of leads.
Project-based fees
Works well for defined scopes of work: a full SEO audit, a site migration, a keyword research project, or building out a content architecture. These have a clear start and end, with deliverables you can review. Many firms start here before committing to a retainer.
The right choice for: firms at the beginning of their SEO journey, or those with a specific problem to solve.
Hourly rates
Useful for ad hoc consultancy — a strategy session, a technical question, or getting a second opinion on an agency proposal. Not well-suited to ongoing SEO work because progress is inconsistent and there’s no continuity of ownership. If you find yourself paying hourly for SEO every month, you’d almost certainly be better off on a retainer.
The right choice for: one-off questions, training sessions, or reviewing work done by an in-house team.
| Model | When it works for B2B |
| Monthly retainer | Sustained lead generation from organic search — the default model for ongoing SEO |
| Project-based | Audits, migrations, one-off keyword research, or content architecture builds |
| Hourly consultancy | Strategy sessions, team training, reviewing proposals, answering specific questions |
4. The real cost of cheap SEO
This is the section most SEO pricing guides skip. Let’s talk about what actually happens when a professional services firm buys cheap SEO.
| What cheap SEO typically looks like in practice |
| • Templated monthly reports that show activity, not results |
| • Content produced at volume but without any expertise in your sector — a law firm’s blog written by someone who has never read a legal document |
| • Link building via directories, press release sites, and low-quality guest posts that add no authority and can actively harm rankings |
| • No real keyword strategy — targeting high-volume generic terms you have no chance of ranking for, rather than the mid-funnel terms your buyers actually use |
| • Account managers who are nice to talk to but can’t answer a technical question |
The problem with cheap SEO isn’t just that it doesn’t work — it’s that it creates the impression that SEO doesn’t work. Firms spend six months paying £300/month, see no movement, and conclude that SEO is a waste of money for their kind of business. In most cases, what they’re experiencing is bad SEO, not SEO.
For a professional services firm, there’s an additional risk. Your brand is your reputation. Content that is inaccurate, generic, or poorly written doesn’t just fail to rank — it actively damages trust with the prospects who do find it. A law firm’s website that reads like it was written by someone with no legal knowledge is worse than no content at all.
A realistic test: if an SEO agency is offering you a full monthly programme for less than £500, ask them specifically what work will be done each month, by whom, and how they will measure success. The answers will tell you everything you need to know.
5. What B2B SEO actually includes
Understanding what you’re buying helps you evaluate proposals and hold suppliers accountable. Here’s what a proper B2B SEO programme covers:
Technical SEO
The foundation. If your site has crawling issues, slow page speed, duplicate content, or broken internal linking, no amount of content or link building will fully compensate. Technical SEO is typically front-loaded — a lot of work in month one to two, then ongoing monitoring and maintenance. Key areas include site speed, Core Web Vitals, crawl budget management, schema markup, and ensuring Google can properly index your content.
Keyword research and content strategy
For B2B, this is where the real strategic work happens. Identifying the specific queries your buyers use at each stage of their decision-making process — awareness, consideration, decision — and mapping content to those queries. This isn’t guesswork; it’s based on search volume data, competitor analysis, and an understanding of how your buyers actually think. A good content strategy for a professional services firm will identify both the high-intent commercial terms and the informational terms that build authority over time.
Content creation and optimisation
Creating content that ranks and converts. For professional services, this means content written with real expertise — not outsourced to generalist copywriters. It includes service pages, thought leadership articles, FAQs, case studies, and sector-specific content. It also includes optimising existing content that is underperforming — often one of the highest-ROI activities on an established site.
Link building and digital PR
Earning links from credible, relevant websites. For professional services, this typically means commentary in trade publications, contributions to industry bodies, and relationships with complementary businesses. Quality matters enormously here — a handful of links from respected legal or financial publications is worth far more than hundreds of directory listings.
GEO — Generative Engine Optimisation
An increasingly important part of any B2B SEO programme. As AI-generated answers become a standard part of how buyers research services — on ChatGPT, Gemini, Perplexity, and Google’s AI Overviews — your firm needs to appear in those answers, not just traditional search results. GEO involves structuring content, building citations, and establishing entity authority in ways that make AI systems likely to recommend you. This is still a relatively new discipline, and firms that invest now are building an advantage that will compound over the next two to three years.
Reporting and strategy
Regular reporting that goes beyond traffic numbers — tracking keyword positions, conversions, lead quality, and connecting organic search performance to business outcomes. For B2B, where a single client might be worth tens of thousands of pounds, even a modest improvement in enquiry rate from organic search has a significant commercial impact.
6. How to evaluate an SEO proposal — 5 questions to ask
If you’re currently reviewing proposals from SEO agencies or consultants, these questions will help you separate the ones who know what they’re doing from the ones who are good at selling.
- What specific work will be done each month, by whom, and how much time does it represent? — Vague answers here — ‘we’ll optimise your site’ — are a red flag. You want specifics: content pieces, technical tasks, hours allocated.
- How do you handle keyword research for professional services firms? — Listen for whether they understand B2B buying behaviour and long-tail commercial intent, or whether they default to high-volume generic terms.
- What’s your process for a site migration or URL change? — Even if you’re not planning a migration, this tells you whether they understand how to protect SEO equity — one of the most important skills in the discipline.
- Can you show me an example of content you’ve produced for a similar client? — Read it. Is it genuinely expert? Would a knowledgeable buyer trust it? Or is it filler dressed up as expertise?
- How will you report progress, and what does success look like at 3, 6, and 12 months? — Good SEO consultants set realistic expectations. Be wary of anyone who promises page one rankings by a specific date for competitive terms — that’s not how it works.
7. Is SEO worth it for a professional services firm?
This is the question beneath the pricing question. The honest answer is: yes, for most professional services firms, SEO is one of the highest-ROI marketing channels available — but only when it’s done properly and given enough time to compound.
The maths are straightforward. If your average client engagement is worth £20,000 over their lifetime, and a properly executed SEO programme generates two additional enquiries per month — converting at even 20% — that’s four additional clients per year, worth £80,000. Against an annual SEO investment of £18,000 (£1,500/month), that’s an ROI of more than 4x. And unlike paid advertising, where results stop the moment you stop paying, organic rankings continue to deliver once they’re established.
The reasons SEO fails for professional services firms are almost always one of three things: the investment was too low to be effective, results were expected too quickly, or the wrong agency was chosen. None of those is a reason to conclude that SEO doesn’t work for your kind of business.
| Realistic timelines for B2B SEO results |
| • Month 1–2: Technical foundations, audit findings addressed, content strategy defined |
| • Month 3–4: First content published, early keyword movement visible for lower-competition terms |
| • Month 5–6: Rankings consolidating, organic traffic beginning to increase measurably |
| • Month 9–12: Meaningful lead generation from organic search, compounding results as content library grows |
| • 12 months+: Established authority in your sector, lower cost per lead as rankings become self-sustaining |
