London · Web development
Web development agency in London
We build sites for London companies that load quickly, meet accessibility standards, handle consent properly, and turn more of your existing traffic into enquiries. A rebuild should pay for itself.
Get a free site reviewWhat does a web development agency in London do?
A web development agency in London designs, builds and maintains your website. Done properly the job is commercial rather than decorative: fast pages, accessibility standards met, consent handled lawfully without destroying your measurement, and the path from arrival to enquiry made deliberately shorter.
of your UK visitors meet a consent decision before they meet your content — and most London sites treat that as a legal problem rather than a build decision
It is both. A consent banner is the first thing every visitor interacts with, so how it is built decides three separate outcomes at once: whether you are compliant with PECR, how much your page performance suffers from a third-party script loading before anything else, and how much of your analytics survives. Most of the banners we review were bought as a compliance product, dropped in by a developer in an afternoon, and have been quietly costing all three ever since.
What we build and why
Four requirements a commercial site has to meet. A build that gets three of them is the one you replace again in two years.
Performance measured on real visits
Core Web Vitals are assessed on the devices and connections your visitors genuinely use, not on a fast laptop in an office. Most slow sites are slow through accumulation — scripts, tags and embeds added over years and never removed.
Usually a subtraction problemConsent built in, not bolted on
A consent layer that is lawful under PECR, loads without blocking your content, and is wired into analytics and ad platforms so you keep as much legitimate signal as the rules allow. Treated as an afterthought it damages compliance, speed and measurement simultaneously.
Three problems, one decisionAccessible from the first template
Keyboard navigation, contrast, focus states, semantic structure and real alt text. It widens your audience and it is what the Equality Act expects of a service open to the public. Designing it in costs very little; retrofitting it costs several times more.
Cheapest when designed inA CMS your marketers can run
Publishing and page-building without a developer ticket. If shipping a landing page needs technical capacity, you will stop shipping landing pages — and that single constraint ends more marketing programmes than budget ever does.
Independence by design
How a build runs with us
Review before we quote
Field performance, accessibility, consent implementation, structure and the current conversion path. This regularly shows a rebuild is not what you need, and targeted repair gets most of the value for a fraction of the cost.
Templates first, pages second
Build the handful of templates carrying the site, get them right on speed, accessibility and structure, then populate. Templates are what stop a site degrading as soon as your team starts publishing into it.
Launch carefully, then measure
Redirects mapped properly, analytics and search console verified from day one, performance checked against real visits rather than a lab score. Then fix the friction the design did not anticipate.
A rebuild does not solve a problem of nobody arriving. If very few people are arriving, a rebuild gives you a better destination for traffic you still have to go and find — the design was never the cause. We would rather say that before you commit budget than after launch, even when it means a smaller project.
Questions
- Is a rebuild necessary, or can this be fixed?
- Often it can be repaired, and that is the cheaper answer. Where the structure is sound and the issues are speed, consent and conversion, targeted work gets most of the benefit. A rebuild earns its cost when the platform limits what your team can publish, or the templates cannot be made accessible without reworking them anyway.
- Will a rebuild damage our search rankings?
- It can, badly, if redirects and content are handled carelessly — the most common way a rebuild loses money. Done properly, with URLs mapped, structure preserved and content carried across intact, rankings usually hold and often improve because the underlying foundations are better than what they replaced.
- How should we handle cookie consent?
- Lawfully and deliberately, as a build decision rather than a plugin choice. Under PECR you need consent before non-essential cookies, and the banner must make declining as easy as accepting. Built well it is compliant, fast and preserves as much measurement as the rules permit. Built carelessly it fails all three at once.
- Is web accessibility a legal requirement in the UK?
- For public sector bodies there are explicit regulations. For private businesses the Equality Act requires reasonable adjustments for disabled people, and an inaccessible website is increasingly read that way. Beyond the legal position it is straightforwardly commercial — an inaccessible site excludes customers who would otherwise have bought.
- How long will the project run?
- A focused marketing site typically runs eight to fourteen weeks. Engineering is seldom the bottleneck — content and sign-off are. Delays come from unfinished copy and unclear approval, so we fix responsibility for both up front.
Sources
- Semrush UK database, September 2026 — the 4,400 monthly search volume cited above.
- UK Information Commissioner’s Office guidance on PECR and the use of cookies and similar technologies.
- Google web.dev documentation on Core Web Vitals and field versus lab measurement.
- W3C Web Content Accessibility Guidelines (WCAG) 2.2, referenced by UK public sector accessibility regulations.
Related
Find out what your site is costing you
A free review: how the site performs on real connections, whether your consent layer is lawful and what it is costing you, and where visitors give up before contacting you.
Yours to keep, consent findings included.