Let me declare the obvious conflict of interest upfront: we are an SEO agency based in Portsmouth. That makes me both qualified and biased to write this guide. I will do my best to be more of the former.
What follows is genuinely how I would choose an agency in Portsmouth or wider Hampshire if I were a business owner rather than a practitioner. The questions I would ask, the evidence I would demand, and the moments I would quietly end the meeting.
Does your SEO agency need to be in Portsmouth?
Honestly, no. SEO is delivered through research, code, content and measurement, and all of it works remotely. Some of the best SEO people in the country work hundreds of miles from their clients, and some of the worst work around the corner. Postcode is not a quality signal.
Where local knowledge genuinely helps is when your customers are local. An agency that knows the difference between Southsea, North End and Port Solent, that understands the commercial pull of Gunwharf Quays or the student population around the universities, writes better local content and builds more relevant local visibility than someone working from a spreadsheet of postcodes. If you are a Portsmouth business serving Portsmouth customers, that context has real value.
So the honest framing is this: choose on capability first, and treat local knowledge as a bonus that matters in proportion to how local your customer base is.
What should you look for in an SEO agency?
Look for evidence, seniority and straight answers. Everything else is decoration. Specifically:
- Who does the work. The single most important question in the industry. Plenty of agencies sell you the founder and deliver a junior. Ask who will actually touch your account, and how senior they are.
- Results in comparable situations. Not a wall of logos. Ask for an example of a business at your size, in a market as competitive as yours, and what happened over 12 months.
- Willingness to say "it depends" and "no". Honest providers set expectations that occasionally disappoint you. Dishonest ones agree with everything until the invoice clears.
- Reporting tied to your business. Enquiries, calls, sales. If the sample report leads with impressions and "keywords tracked", the agency measures its own activity, not your outcome.
- Current thinking on AI search. Search behaviour is changing fast, and Google updated its own hiring guidance in June 2026 to suggest asking whether an agency's AI optimisation advice aligns with official documentation. An agency with no coherent view on AI visibility in 2026 is behind.
What questions should you ask before signing?
Ten questions do most of the filtering. Ask them all and take notes:
- Who exactly will work on my account, and what is their experience?
- Can you show me results for a business like mine, with numbers?
- What would you do in the first 90 days, and why?
- How do you decide what to prioritise?
- What do you need from me and my team for this to work?
- How do you report, and can I see a real (anonymised) monthly report?
- What happens if it is not working after six months?
- What are the contract terms, and what does leaving look like?
- How are you adapting work for AI Overviews and AI assistants?
- What could go wrong, and what is outside your control?
That last pair matters most. Google's own guidance on hiring an SEO says plainly that nobody can guarantee a number one ranking. An agency that answers question ten with a confident "nothing" has just failed the interview.
What does SEO cost in Portsmouth and Hampshire?
For local campaigns in the Portsmouth and Hampshire area, expect £500 to £1,500 a month. For businesses targeting national visibility from a Hampshire base, £1,000 to £3,000 a month is the realistic core range, rising with competition. One-off audits typically run £500 to £7,500 depending on site size.
Local rates here are generally kinder than London rates for equivalent work, partly because overheads are lower. That is one reason working with a Hampshire agency can be good value even for national campaigns. I have broken down the full picture, including what drives the price and the traps at both ends, in our UK SEO pricing guide.
What red flags should make you walk away?
Some signals reliably predict a bad time. In rough order of how fast I would leave the meeting:
- Guaranteed rankings or "page one in 30 days". Nobody controls Google. This is the industry's oldest lie and it has not improved with age.
- They contacted you out of the blue about "problems" with your site. Google specifically warns about unsolicited SEO emails, and so does every honest practitioner.
- Long lock-ins with no exit. Twelve-month minimum terms with 90-day notice periods protect the agency from its own results.
- The senior person vanishes after the pitch. If you cannot get a named delivery team in writing, assume a junior handoff.
- Vanity reporting. Rankings for keywords nobody searches, traffic graphs with no revenue line, and "brand awareness" doing heavy lifting.
- Secrecy about methods. If they will not explain what they are doing because it is "proprietary", it is either mundane or dangerous.
How do you compare agencies fairly?
Give every agency the same brief and compare like for like. Most agency comparisons fail because each proposal answers a different question: one quotes a local campaign, another a national content programme, a third an audit plus retainer, and the buyer ends up comparing prices of different products.
Write half a page: what you sell, where your customers are, what a new customer is worth, what you have tried before, and what you want in 12 months. Send the same brief to every agency, then compare the responses on scope, seniority, and how honestly each one engaged with your actual situation. The proposal that asked you clarifying questions before quoting is usually the one worth shortlisting.
The honest bit
We are one of the agencies you might be comparing, so weigh this guide accordingly. I have tried to write it so that every test in it is one we would be happy to be judged against, and you are welcome to hold us to that. Ask us who does the work (senior people, no handoffs, it is the reason we exist). Ask us what we cannot control (a lot, and we will list it). Ask us for the anonymised report.
And genuinely: if another agency answers these questions better than we do, hire them. A good agency relationship lasts years, and it is worth choosing carefully.
Talk to us or don't, but ask the questions
Whoever you speak to in Portsmouth, Southampton or anywhere else in Hampshire, take the ten questions with you. They cost nothing to ask and they surface in one meeting what would otherwise take six months of invoices to learn.
If you would like to see how we answer them, you can read about how we work, see what we do for Portsmouth businesses and on local SEO generally, or just start a conversation. No pitch deck, no junior handoff, and if we are not the right fit we will say so.





