How to Choose an SEO Agency in London

London has more SEO agencies than almost any other city in the UK, and from the outside many of them look the same. Each has a case study page, a list of services and a promise of more traffic. The differences show up later, in the quality of the audit, the clarity of the reporting and how the agency behaves when something does not work.

This guide is a practical checklist for a business owner or marketing manager. It works for any agency, including ours, and you can use it to question us as hard as you question anyone else.

Start with what you need, not with a shortlist

Write down what you want search to do for the business. It might be more calls to a clinic, more quote requests for a trade, more sign-ups for a software product or more visits to a shop. An agency can only be judged against a goal, and it is much easier to compare proposals when each one is answering the same brief.

Then decide how much of the work you want to hand over. Some businesses want a full service that covers technical fixes, content and links. Others have a developer and a writer in-house and want strategy and links only. A good agency will ask this early and will price the work you actually need.

Questions to ask every agency

1. 1What will you do in the first 90 days, and in what order? A clear answer names an audit, a keyword plan and the first fixes, not a vague promise of optimisation.
2. 2Who does the work? Ask for the roles involved and whether any of it is outsourced or automated.
3. 3How do you find the right keywords for a business like ours? Look for answers about buyer intent and your own customers, not only search volume.
4. 4How do you build links, and can you show examples? Be wary of anything described as a package of links for a set price.
5. 5What will the reports show? You want traffic, enquiries and next steps, with what did not work as well as what did.
6. 6Do we keep access to everything? Your Search Console, analytics and Business Profile should be in your name.
7. 7What happens if we leave? A fair agency hands over documents and access without fuss.

Red flags in an SEO pitch

• A guaranteed ranking or a guaranteed number of visitors. Search results are decided by Google, and no agency controls them.
• A price that is far below every other quote, with no list of outputs. Skilled time costs money, so very cheap work is usually automated or thin.
• Reports made of rankings and impressions only, with nothing about calls, forms or sales.
• A refusal to share how the work is done, or a claim of a secret method.
• Links described as a package, such as a number of backlinks a month, with no sight of the sites.
• A long tie-in contract with no break clause or exit support.
• Pressure to sign this week to lock in a price.

What a fair proposal looks like

A good proposal reads like a plan, not a brochure. It should name the goal, describe what the agency found when it looked at your site, set out the work in phases and list what you receive each month. It should also say what the agency needs from you, such as access, approvals and subject-matter input, because delays on your side slow the results.

Agency, freelancer or in-house team?

An agency gives you a range of skills under one roof, such as technical, content and links, and cover when one person is away. A freelancer can be a good fit for a focused job and often costs less, but you depend on one person. An in-house hire gives you someone who knows the business deeply, but it is a salaried role and one person rarely covers every skill.

Many businesses start with an agency to fix the foundations and set the plan, then move some work in-house as they grow. If that is your direction, say so at the start and ask how the agency would support the handover.

Does the agency need to be in London?

Not always. Local knowledge helps when you serve customers in a particular borough, because the way people search differs between, say, Shoreditch and Croydon. What matters more is that the agency understands your customers and communicates clearly, and that it can show how it would handle your area. Be wary of anyone who claims a local office that does not exist. We work as a UK team and say so openly.

A simple way to compare three agencies

Ask each agency for a proposal against the same short brief, then score them on five points: clarity of scope, quality of the audit findings, how well they understood your customers, the reporting you will receive and the terms. Give the price the same weight as the others, no more. The agency that explains its thinking best is usually the one that will communicate best once you are working together.

If you would like a view on your own site first, our SEO audit is a fixed-scope way to see where you stand before you commit to anything. You can also read about what SEO costs in the UK and how we work in our process.