Next.js Development Agency for Startups and Growing Businesses
Fast websites and web apps on Next.js and React, built by a senior team that also handles the SEO, design and hosting around them.
A good fit if
- Your WordPress or page-builder site is slow and you are tired of plugins
- You need a marketing site and a logged-in app that share one codebase
- You want a Next.js team without hiring one in-house
- You care how the site ranks, not only how it looks
Next.js is what we build on by default. Pages arrive pre-rendered and fast, search engines read every word, and the same codebase grows from a five-page site into a full product without a rebuild.
Services
Next.js development services we offer
One team for the whole build, so nothing gets lost between design, code and launch.
Next.js marketing websites
Company and product sites built to pass Core Web Vitals on real phones, with every page indexable for Google from day one.
Next.js web applications
Dashboards, portals, booking systems and SaaS products with sign-in, payments, roles and an API behind them, built on the App Router and React Server Components.
Headless CMS builds
Next.js front ends on Sanity, Strapi or Contentful, so your team edits content in a clean editor while the site stays fast and secure.
WordPress to Next.js migration
A full move off WordPress with every URL redirected, metadata and schema carried over, so the rankings you earned come with you.
Performance and SEO fixes on existing Next.js apps
Slow builds, bloated client bundles, layout shift and pages Google cannot read. We audit, fix and leave you with the numbers before and after.
Ongoing support and maintenance
Framework upgrades, dependency patches, monitoring and small features on a monthly retainer, so the site does not rot after launch.
Why Next.js
What Next.js does better than WordPress and page builders
It is not the right tool for every site. For a business that sells online, it usually is.
Speed you can measure
Static generation and server rendering mean the page is already HTML when it reaches the browser, so it shows up fast even on a mid-range phone on a weak connection.
Built for search
Every page ships real HTML with its title, description, canonical and structured data set per route, which is exactly what Google and AI answer engines read.
No plugin debt
Features are code you own, not twenty plugins from twenty vendors that each need updating and each can break the site or open a security hole.
One codebase for site and app
The marketing pages and the logged-in product live together, share components and deploy together. No second team, no second stack.
Engagement
How you can work with our Next.js team
Pick the model that matches how certain your scope is.
Fixed-price project
A scoped website or app with a fixed quote, milestones you sign off and a launch date. Best when you know what you need.
Dedicated Next.js developer
A senior developer working on your product full time, inside your Slack and your sprint process, without the cost of hiring. See our page on hiring Next.js developers.
Monthly retainer
A set number of hours each month for new features, SEO work and maintenance on an existing Next.js site.
Hourly, on demand
For audits, performance fixes or a second pair of eyes on an architecture decision.
How it runs
Our Next.js development process
- 01
Scope and architecture
Pages, data, integrations and the rendering strategy for each route, agreed before a line of code.
- 02
Design system
Components and tokens built once in code, so page fifty costs a fraction of page one.
- 03
Build and review
Weekly preview deployments you can click through, with performance budgets checked on every change.
- 04
Launch and hand over
Redirects, analytics, schema and CI/CD in place, plus a repository and docs you own outright.
Cost
How much does a Next.js website cost?
We quote a fixed price after a short scoping call. These are the things that move it, so you can see where your project sits.
Get a fixed quote→| What moves the price | Why |
|---|---|
| Number of unique page templates | Ten pages built from three templates cost far less than ten pages that are each one of a kind. |
| Static site or web app | Sign-in, user roles, payments and dashboards turn a website into an application, which is a different size of build. |
| CMS and content | Connecting a headless CMS and modelling your content adds setup time but saves your team developer hours every month after. |
| Integrations | Each CRM, payment provider, booking tool or internal API the site talks to adds build and testing time. |
| Design: provided or from scratch | Building from your finished Figma file is quicker than designing and building together. |
| Migration from an old site | Moving content and redirecting every old URL protects your rankings and is scoped as its own line. |
Live proof
Next.js sites we have shipped.
Real estate
Solvane
An editorial one-page website for luxury villas, agencies and private brokers.
Read the case study →
Healthcare
Sanavyr
A calm, scroll-animated website for a multi-specialty clinic.
Read the case study →
Beauty & wellness
Lusavière
A luxury unisex salon site for Mayfair, London, built around booking.
Read the case study →Tools we use for this
- Next.js
- React
- TypeScript
- Tailwind CSS
- Sanity
- Strapi
- Contentful
- PostgreSQL
- Prisma
- Vercel
- AWS
- GSAP
FAQ
Next.js development questions
Usually the full build: architecture, design, front-end and back-end development, CMS setup, hosting and deployment, then maintenance. At Kavion that also includes the SEO setup, because a Next.js site that nobody finds has only done half its job. You can hire us for the whole project or for one part, such as a migration or a performance audit.
Look at live sites they have built and test them on your own phone, not only on a portfolio slide. Ask who will write the code and whether they are senior, whether you will own the repository, how they handle SEO during a migration, and what happens after launch. A good agency will also tell you when Next.js is the wrong choice for your project.
It depends on the number of unique page templates, whether you need app features like sign-in and payments, the CMS and the integrations. A focused marketing site is a much smaller project than a web application. We give a fixed quote after a scoping call, and the start a project form lets you choose a budget range up front so the conversation starts in the right place.
Hosting, which for most business sites on Vercel or a similar platform is low, a headless CMS plan if you use a paid one, your domain, and maintenance time for framework and dependency updates. There are no plugin licences to renew. We explain the running costs before you commit, so there are no surprises after launch.
Yes, when it is set up properly. Next.js renders pages as HTML on the server or at build time, so search engines read the full content without running JavaScript. It also gives fine control over titles, descriptions, canonical URLs, sitemaps and structured data. Most SEO problems we see on Next.js sites come from content hidden in client-only components, which we avoid by design.
For speed, security and anything beyond a basic brochure site, usually yes. WordPress is still a sensible choice for a small team that wants to install a theme and publish posts without a developer. Next.js wins when performance, custom features or growth into a web app matter. We have written a longer comparison if you are deciding between them.
Yes. We crawl the old site, map every URL to its new home with permanent redirects, carry over titles, descriptions and structured data, and check Search Console after launch. Rankings usually hold, and they often improve because the new site is faster.
A marketing site typically takes four to eight weeks from scope to launch. A web application depends on its features, and we break it into releases so something useful goes live early. Content and decisions are usually the slowest part, which is why we agree scope and gather real copy at the start.
From India, working remotely with clients in the US, UK, Canada, Australia and India. We plan regular overlap with your working day for calls and reviews, keep progress visible in preview deployments, and reply within one business day.
Yes. Next.js releases often and dependencies need patching, so we offer a monthly retainer covering upgrades, security fixes, monitoring and small improvements. If you would rather run it in-house, we hand over documentation and a deploy pipeline your team can use without us.