Website Translation Services in London

Across City of London, Westminster, Mayfair, and Canary Wharf, UK and international businesses publish multilingual websites that must rank in target markets, comply with UK regulators, and convert visitors browsing in their native language. A London-based agency delivers that work as an end-to-end localisation pipeline rather than a flat per-word translation transaction.

Which website translation services does a London agency provide?

A London agency provides 7 core website translation services: certified translation, business translation, technical translation, e-commerce localisation, SEO translation, multilingual CMS integration, and ongoing content updates for live sites. Each service maps to a defined deliverable, pricing model, and turnaround. The translator network behind all seven services is composed of native in-country linguists with sector specialisation and a minimum of five years of post-qualification experience, ensuring that terminology precision and register are matched to the audience from the first draft.

What is certified website translation?

Certified website translation is a signed, stamped translation accepted by UK Home Office, UKVI, HM Passport Office, FCDO, and UK courts for regulated pages such as terms, privacy notices, and KYC documentation. Each certified page carries a statement of accuracy, full translator credentials, and the agency’s ISO 17100 reference number. Certification is mandatory for any page that will be submitted to a UK regulatory body or used as evidence in legal proceedings. Pricing for certified work sits at £0.14 to £0.22 per source word, reflecting the additional qualification checks, revision step, and stamped declaration that each document requires. See our Certified Translation Services London page for accepted document categories and turnaround.

What is business website translation?

Business website translation covers corporate pages, product catalogues, About Us, case studies, and investor relations content, calibrated to brand tone and target-market business conventions. Style guides, glossaries, and translation memory keep terminology consistent across the site and future releases. Business-grade work is priced at £0.09 to £0.14 per source word, and translation memory built during the first project reduces the effective rate on every subsequent update. Industries regularly served under this service type include legal, financial, technology, and manufacturing, where consistent corporate voice across markets directly affects client trust. Full scope is detailed on our Business Translation Services page.

What is technical website translation?

Technical website translation handles engineering, SaaS, medical, and manufacturing sites requiring controlled terminology, glossary management, and subject-matter expert review. Linguists hold sector qualifications in fields such as life sciences, mechanical engineering, fintech, and software development, and each carries five or more years of post-qualification practice in their subject domain. Technical projects are priced at the same £0.14 to £0.22 per word band as certified work because the subject-matter review and terminology validation steps add comparable effort. Sector coverage is mapped on our Technical Translation Services page.

What is e-commerce website localisation?

E-commerce localisation adapts product titles, descriptions, currency, payment methods, shipping copy, and checkout flows for platforms including Shopify Markets, Magento, and WooCommerce. Visitors convert at higher rates when product pages, pricing, and checkout copy appear in their native language with locally familiar payment options. Localisation at the e-commerce level also extends to category hierarchies, filter labels, review templates, transactional emails, and returns policy pages — all of which influence purchase decisions and post-sale satisfaction. Pricing typically runs at £0.10 to £0.16 per word, with per-page bundles available for sites with a defined page count rather than a product catalogue structure.

What is SEO website translation?

SEO website translation localises target keywords, meta tags, headings, internal anchors, and schema in the target language, then configures hreflang and canonical tags to avoid duplicate-content penalties. The SEO deliverable set for each project includes hreflang configuration, translated meta inventory, localised URL slugs, and a multilingual XML sitemap ready for submission to Google Search Console. Per-page pricing of £45 to £180 covers the keyword research, meta rewrite, and hreflang mapping for each URL, making it the most cost-predictable model for small to mid-size marketing sites. Google treats the searcher’s language as a strong relevance signal, so a translated page that omits in-market keyword research sacrifices ranking potential regardless of how fluently it reads.

How is website translation quality assured under ISO 17100?

Website translation quality is assured under ISO 17100 through a 4-step QA workflow: translation by a native linguist, revision by a second qualified linguist, in-context review on the staged site, and final SEO and functional sign-off. Each step produces a recorded checkpoint that satisfies ISO 9001 traceability requirements, creating an auditable project record from initial string extraction through to live publication. GDPR-compliant data handling governs all files transferred between client, project manager, and linguist team, with translation assets stored on encrypted servers and deleted or returned in accordance with the agreed data-retention schedule.

1. Translation by a native-target-language linguist with sector specialisation.
2. Revision by a second qualified linguist against the source under ISO 17100.
3. In-context review on a staging URL against the live design.
4. SEO and functional sign-off before publication.

What does ISO 17100 require for translation suppliers?

ISO 17100 requires documented translator qualifications, a separate reviser, project-management traceability, client feedback handling, and data-protection compliance for translation service providers. The standard binds suppliers to verifiable processes rather than self-declared quality claims, which means clients can request evidence of compliance rather than simply accepting an agency’s assurance. Under ISO 17100, every linguist working on a project must hold a recognised translation qualification or equivalent demonstrated competence, and their credentials must be on file before they are assigned to client work. The requirement for a separate reviser — a second qualified linguist who has not seen the translator’s output before reviewing it — eliminates the self-review bias that undermines quality in single-linguist workflows.

How is in-context review performed on a staged site?

In-context review previews translated pages on a staging URL where linguists check line breaks, button labels, form copy, and visible character limits against the live design. Reviewers log issues against component IDs so developers fix them once across every locale, rather than applying locale-by-locale patches that are difficult to track. In-context review also catches issues that are invisible in a spreadsheet or CAT tool: text expansion in languages such as German or Finnish can overflow fixed-width containers, RTL languages can misalign flex layouts, and translated URLs can return 404 errors if slug localisation was applied inconsistently across internal links. All issues identified during in-context review are resolved before the final SEO QA pass, which validates hreflang clusters, canonical tags, and multilingual sitemap completeness as the last step before the translated site is approved for publication.

How does ISO 9001 quality management complement ISO 17100?

ISO 9001 quality management governs the project processes around translation — scoping, resourcing, client communication, change control, and delivery — while ISO 17100 governs the linguistic process itself. Together, the two standards mean that a client receives not only a linguistically accurate translation but a project that was managed to a documented and auditable standard from brief to delivery. ISO 9001 certification requires the agency to operate a continual improvement cycle, logging client feedback, non-conformances, and corrective actions so that recurring quality issues are systematically eliminated rather than addressed only when a client raises a complaint. This combination of standards is particularly important for regulated sectors such as legal, financial, and medical, where both linguistic accuracy and process accountability carry compliance implications.

Why choose a London-based agency for website translation?

Choosing a London-based agency for website translation gives 4 advantages: UK-compliant certified translations, GMT-aligned project management, on-site briefings in central London, and linguists familiar with British English and UK SEO conventions. Visitors convert at higher rates when buying in their native language, so a London agency that combines UK compliance with native-market localisation protects both regulatory standing and revenue. Hreflang clusters for UK English (en-GB), US English (en-US), and EU language variants are configured to prevent duplicate-content cannibalisation between regional versions of the same page.