London · Web development
Web development agency in London for fast sites with consent done right
Fast business websites at a fixed price, with a cookie banner that follows UK rules without slowing pages or breaking your analytics.
- A fixed price, agreed before work starts
- Your team edits the site without a developer
- You own the code, content and hosting
Businesses we work with today
The first thing UK visitors see is your cookie banner
Every visitor to a UK website meets a consent banner before they meet your content. Many banners are heavy scripts added after launch. They slow down the page, cover the offer on a phone, and often block or break the analytics you rely on.
Others don’t follow the rules at all, with no clear way to reject or cookies set before anyone agrees. We treat consent as part of the build, so the banner is light, clear and compliant, and your tracking keeps working for everyone who says yes.
What we fix on your website
A banner that slows every page
Heavy consent tools can add noticeable delay to every page load. We use a lightweight set-up that loads quickly and stays out of the way of your content.
Consent that breaks your analytics
Banners that block tags without passing consent signals leave big gaps in your data. We connect the banner to Google’s consent mode, so reporting stays as complete as the rules allow.
A website that loads too slowly
Every extra second on a phone costs you visitors. We build light pages and test them on real devices and slow mobile networks before launch.
Visitors can’t tell what you do
If the first screen doesn’t say who you help and how, people leave within seconds. We plan every page around the questions your buyers actually ask.
Waiting on a developer for every change
Your team should be able to update a price or publish a case study in minutes. We set up a visual editor that anyone in the business can use.
Losing rankings after a redesign
A new website that drops out of Google is an expensive mistake. We redirect every old address and carry your SEO settings across.
Web development in London: what we build
Design, build, content and launch, all handled by one team that answers to you. More on our web development approach.
Website design
Pages planned around the information your buyers need before they get in touch, designed for mobile visitors first.
Website development
Fast, secure business websites. Pages are built ahead of time and served from a location near each visitor, so they open quickly.
Redesigns and rebuilds
We keep what works on your current website and replace what doesn’t, while every previous web address redirects to its new page.
A visual editor
Click the text or image, change it and publish. If your team can use Google Docs, they can manage the entire website.
WordPress moves
We move your content, images, web addresses and SEO settings across, so search engines can follow the move without losing track.
Speed and Core Web Vitals
Light pages, properly sized images and clean code, tested on real phones and slow networks rather than a fast office laptop.
SEO built in
Clean structure, page titles, schema markup and XML sitemaps are configured from the beginning. See SEO services.
Landing pages
Focused pages for ads and campaigns, built to turn paid clicks into enquiries. More on conversion testing.
Why London businesses choose Oneskai to build their website
Consent treated as part of the build
The banner, the tags and your analytics are designed together, so the site is compliant, fast and still measurable.
A fixed price before any work starts
You receive a page-by-page plan and a fixed price, broken down line by line. If you expand the scope later, we price the addition before we start it.
Built to be found
We also run SEO in London, so your website is built with search in mind from the first page instead of being patched afterwards.
Yours to keep, and easy to run
The code, content and hosting are in your company’s name, your team edits pages without a developer, and there is no lock-in.
How we work: plan, design, build, launch
- 48 business hours
Plan and price
A strategist reviews your current website and sends a page-by-page plan, a fixed price and a proposed launch date.
- Weeks 1–3
Design
We design the most important pages first, so you can review and approve the visual direction before we build the remaining templates.
- Weeks 3–6
Build and move content
We build the website, move your content across, and set up the editor, the tracking and the redirects.
- Weeks 6–8
Test and launch
We test on real phones and browsers, check performance and forms, then launch and monitor the first few weeks closely.
A typical 10-page website takes 6 to 8 weeks from the day you approve the plan. Your own plan includes the specific dates for your project.
Get your free plan and priceWhat you get at launch
Every website we build ships with the same checklist completed, so the basics never get pushed into a “phase two”.
| Item | What it tells you |
|---|---|
| The pages in your plan | Written, designed and built, with nothing left behind as a placeholder. |
| A visual editor | Your team can update text, images and entire pages without code, and we provide training. |
| Speed checks | Core Web Vitals tested on phones, so the website is quick where your buyers actually are. |
| Search setup | Redirects from previous addresses, XML sitemaps, page titles and schema markup, all configured. |
| Cookie consent | A lightweight banner with a clear reject option, connected to consent mode. |
| Tracking | GA4 and form tracking configured, so you can identify which pages generate enquiries. |
| Ownership | Code, content and hosting account, all registered in your company’s name. |
Rated by clients on public review sites
These scores come from public profiles you can open and check yourself. The reviews below are quoted word for word from GoodFirms, where clients post them directly.
“Oneskai is a reliable, highly skilled partner for web revamps and tech migrations.”
We partnered with Oneskai to revamp our WordPress site… Delivered ahead of schedule, communication stayed clear throughout.
Chief Digital OfficerRiskMan · Website rebuild and moveVerified on GoodFirms “Oneskai delivered a fast, highly scalable, and SEO-optimized job portal right on schedule.”
…What set them apart was integrating SEO into development from day one. Clear communication, deadlines strictly met.
Full Stack DeveloperGRC Openings · Job portal buildVerified on GoodFirms
Who we build for in London
We are the best fit for service businesses and B2B companies whose website needs to win enquiries, not just look good.
- Professional servicesLaw firms, accountants and consultancies that sell on trust. See professional services.
- Financial servicesFintechs and advisers that need a secure, credible site. More on fintech.
- B2B and SaaSMarketing sites with clear pricing, product and comparison pages. See SaaS.
- Private healthcareClinics where clarity and accessibility matter most. See healthcare.
- HospitalityHotels, venues and restaurants that take bookings online. More on hospitality and travel.
Who we’re not right for
An online shop with thousands of products, or a site that must be live next week. If that describes your project, we will say so straight away.
Working with London teams
We work with London businesses remotely, with video calls for planning, design reviews and launch whenever you need them. Your plan sets out every date in advance.
How much does a website cost in London?
Every website receives a fixed price in your free plan, broken down line by line. The price depends on how many pages you need and which features the website requires.
You agree the price before any work starts, and if you add to the scope later, we price the addition before we do it.
If your project isn’t a good fit for us, such as a shop with thousands of products or a website needed next week, we will say so straight away.
Get your free website plan and price
Send us your website address, and within 48 business hours a strategist will send you:
- A page-by-page plan for your new website
- What each page needs to communicate to win enquiries
- Which content to keep from your current site, and what to remove
- A fixed price, broken down line by line
- A launch date
- A short demonstration of the editor your team would use
You keep the plan and the price, whatever you decide afterwards.
No website yet? Enter a competitor’s address and we’ll base the plan on that instead.
Website questions from London businesses
How much does a website cost in London?
It depends on how many pages you need and what the site has to do. London agencies vary widely in price. Your free plan gives you a fixed price, broken down line by line, before any work starts.
Does my website need a cookie banner?
If it sets cookies that are not strictly necessary, such as most analytics and advertising cookies, UK rules require consent first. The banner must make rejecting as easy as accepting.
Will a cookie banner hurt my Google rankings?
A heavy banner can slow your pages and push content down on phones, which affects user experience. A lightweight, well-placed banner has very little effect.
How long does it take to build a website?
A typical 10-page website takes 6 to 8 weeks from the day you approve the plan. Larger websites take longer, and your plan includes the specific dates for your own project.
Can my team edit the website without a developer?
Yes. Click the text or the image, change it, and publish. If your team can use Google Docs, they can manage the website, and we demonstrate this before you commit to anything.
Who owns the website?
You do. The code, the content and the hosting account are all registered in your company’s name, so if you stop working with us, the website remains yours. There is no lock-in.
We’re on WordPress. Will we lose content or Google rankings?
We move your content, images, web addresses and SEO settings across. Every old address points to its new page, and your sitemaps and schema stay in place, so search engines can follow the move.
What is the website built on?
Your pages are built in advance and served from a location near each visitor, so they open quickly. Your team edits everything in a visual editor without touching code, and if your developer wants the technical details, we will send them.
Who is this not a good fit for?
An online store with thousands of products, or a website that must be live next week. If that describes your project, we will tell you immediately rather than accept it.
Is the website plan really free?
Yes. You receive the plan, the fixed price and the editor demonstration, and you keep all three. Some people build with us afterwards, others take the plan to another developer, and both are perfectly fine.