Website Service NYC is a Brooklyn-based web design and development business serving New York City. We build custom Next.js websites and web applications — marketing sites, customer portals, dashboards and internal tools — for founders and business owners across the five boroughs. You work directly with the senior developers who write the code, and scope and price are agreed in writing before the build starts.
Measurement grid, baseline, optical rhythm. Nothing is placed by accident.
Routing logic and accessible structure become immutable before a single style lands.
Tokens, optical scale, and a full spectrum palette resolve into one system.
Server components, edge caching, and streamed data render under 0.5s LCP.
Performance, accessibility, and best practices measured — not asserted.
Documented, budgeted in CI, and handed to a team that can extend it without us.
Five services, one team. Most projects need two or three of them, so we agree which ones apply before anything is built. Go deeper on website development, app development or front-end engineering, see the full Next.js services and deliverables, or price a build on the estimate calculator.
Marketing sites, publishing platforms and multi-locale sites built on the App Router, with routing, rendering and caching decided before a component is written.
Dashboards, portals, editors and internal tools where state and data volume are the real challenge, not the page count.
Moving an existing React SPA, WordPress build or legacy front end onto Next.js in stages, so the current site keeps working while the new one takes over route by route.
Connecting a headless CMS, payments, CRM or internal services to the front end with clear data contracts and predictable caching behaviour.
Ongoing dependency upgrades, performance checks, accessibility fixes and small feature work after launch, at an agreed cadence.
Dense product surfaces where every pixel is load-bearing — operations consoles, analytics, money movement. This is the work a Next.js development agency is hired for: rendered fast, on real devices, with real data volumes.
Performance budgets are set at kickoff and enforced in CI. If a pull request costs you 40ms, it does not merge. That is the whole trick — we just refuse to skip it.
The right build depends on what the site has to do. These are the three shapes of work we take on most often — see selected Next.js projects for examples.
Agreed scope, agreed price, weekly demos. You always know what the next two weeks cover.
We review your goals, any existing codebase and the systems involved, then agree scope, rendering approach and price in writing.
Component inventory and data contracts first, then build sprints with a deployed preview on every branch and a demo each week.
Cross-device checks, accessibility review, performance measurement and redirect mapping before the switch goes live.
Dependency upgrades, monitoring and small feature work afterwards, at a cadence we agree with you.
One continuous line from diagnostic to handover
No layers between you and the developer typing. The team is deliberately small, so the standard never gets delegated away — how our Next.js development agency works.
The people on your first call are the people who write the code. There is no account manager relaying requirements and no handoff to a team you have not met.
After the diagnostic you get a written scope and price. Anything new is quoted before it is built, so a change never arrives as a surprise invoice.
You own the repository, the design system, the CI configuration and the documentation. Your team can extend the work without calling us first.
Website Service NYC works from 2907 Brighton 8th St, Suite D5, Brooklyn, NY 11235 — and builds for businesses across Brooklyn, Manhattan, Queens, The Bronx, Staten Island. Call (929) 266-9932 or get directions.
Boring, proven, well-documented tools — chosen so your team can hire for them and so the codebase still makes sense in four years.
Custom Next.js website development, web application development, migration and modernization of existing front ends, API and headless CMS integrations, and maintenance and support after launch.
Yes. We review the current architecture and rendering approach first, then migrate in stages where possible so the live site keeps working while routes move across. Existing URLs are mapped and redirected rather than dropped.
Yes. We wire headless CMS platforms, payment providers, CRMs and internal services into the front end with typed data contracts and clear caching and revalidation rules.
Number of unique screens, how much custom interface work is involved, how many systems have to be integrated, the state of any existing codebase, and how quickly content and decisions are available. We put both cost and timeline in writing after the diagnostic call rather than quoting a figure up front.
Yes, as an agreed arrangement covering dependency upgrades, performance and accessibility checks and small feature work. Scope and response windows are agreed with you before it starts.
Book a call using the scheduler on this page, or send a short brief through the form. A senior engineer replies within one business day.
You do — repository, design system, CI configuration and documentation. There is no licence and no lock-in.
We run this Next.js development agency without account managers, sales layers, or offshore handoffs — so the same senior engineers who scope your build are the ones who ship it. Configure your project and see a transparent, itemised number in under two minutes.
Call us, book a time, or send a short brief. Prefer the long version? Use the contact page, read about our web design and development services, or see selected website projects.
No sales layer. You speak directly with the senior engineer who would build it, and leave with a scope and a price range.