

Sanity CMS Website Development That Puts You In Control
Do you need to raise a ticket with your developer every time you want to add a new page or just to swap out a photo of an employee who no longer works there? Or maybe you’re choosing a CMS for the first time and want to get it right from day one. Either way, you’re in the right place.
A headless CMS website on Sanity hands the controls back to you, so you can follow through on updates the minute you need them, not whenever your developer has a free minute.

Director A2W Plumbing


You Shouldn’t Need to Wait 3–5 Business Days
to Change a Headline
100+ reviews
Most business websites run on a CMS that ties content to page design. Adding a new service or swapping a photo means wrestling with a clunky page builder or paying someone else to do it for you. A headless CMS website splits those two jobs apart.
Sanity earns its place when your content is doing the heavy lifting; for example, you have lots of service or location pages, a blog or resource library, case studies, or content that changes often enough that you need to publish updates frequently. Because Sanity separates your content from the design, your team can add to and update it directly in Sanity Studio without breaking how the page looks completely.
AI tools and Google both tend to read a well-built headless site faster and more accurately, because the content’s structured properly instead of buried inside a page builder’s markup.
Not sure if Sanity is the right build for you? We’ll tell you if we think it fits.
However You’re Starting, We’ll Get You There
Choosing your first CMS before you’ve even built a site? We’ll set you up on Sanity and Astro, or Next.js if you need more firepower, from day one, so you’re not migrating off a limiting platform in two years’ time.
Stuck waiting days for a developer to swap a photo or update pricing? We’ll rebuild your site on Sanity, so your team can make the changes that matter without waiting.
Moving off WordPress, Squarespace, Webflow, or anything else? Our Sanity CMS agency maps every URL and builds the redirect plan before touching a thing, so your content and Google rankings move with you.
Running a store or juggling a CRM, booking system, and a dozen other tools? Sanity connects to what you already use, and pairs well with Shopify’s checkout if you need ecommerce on top of serious content.
Everything We Cover
Director A2W Plumbing
Custom Sanity website development on Astro by default, or Next.js when you need deeper integrations or serious ecommerce scale.
Sanity Studio setup built around how your team actually writes and publishes, with custom content types and real-time collaboration.
Sanity migration and redirect mapping, so your content and your Google rankings move with you.
Headless CMS integrations with your CRM, booking system, analytics, and ecommerce tools, including Sanity paired with Shopify.
Dedicated Sanity developer support, whether that’s a quick fix or an ongoing retainer.
Hosting, security, and performance, handled on every build, with ongoing maintenance plans if you’d rather we kept watch.
And the cherry on top: walk away whenever you want and take your domain, content, and website with you. Although we reckon you’d choose to stay because our Sanity developers are just that good.
From ‘Is This Even Possible?’ to ‘How Did You Build That So Fast?’
Why Businesses Choose numero® as Their Sanity CMS Agency

NZ-Based Sanity Specialists
We’re an Auckland-based team who’s been building websites since 2016, working with businesses across New Zealand, Australia, and the USA.

Support When You Need It
We don’t just hand you a finished site and disappear. With a maintenance plan, you get a direct line to your web developer if you need help.

Migrations That Protect Your Rankings
We map and redirect before touching your live site. This means that any SEO equity moves with you instead of getting left behind.

Built to Grow with You
A Sanity CMS website is built to add new content types, integrations, and channels as your business grows, instead of hitting a wall your old platform can’t get past.

Hear It from
the People Paying Us
Frequently Asked Questions About Sanity CMS
Sanity CMS is a headless content management system. In plain terms, it’s the back-end control room where you manage your website’s content, text, images, products, whatever, without it being tied to how your pages look. A separate frontend (we build on Astro or Next.js) handles the design and display.
WordPress keeps your content and design in one system, which suits teams who want a huge plugin library and are already comfortable managing it. A headless CMS website separates the two, so your frontend’s built for speed and your content team isn’t waiting on a theme or plugin update to publish.
Yes, the Sanity website builder is built around plain content forms, not a drag-and-drop page builder. We set it up around your content types, so your team can update a service page or add a blog post without jumping through multiple hoops.
No, not if it’s done properly. We map every URL on your current site and build a full redirect plan before migration day, so Google follows the move instead of losing track of you. Most of our clients see rankings hold or improve post-launch because the new site is faster and better structured.
Most builds take 6 to 12 weeks from kick-off to launch, depending on size and complexity. Migrating to Sanity from an existing site can move faster since the content already exists; it just needs proper mapping and migration.
No. You can handle day-to-day content changes like headlines, images, and adding new pages in Sanity Studio. Our Sanity developers provide ongoing support for bigger jobs like a new content type or a custom integration.
It depends on your site’s size, whether you’re building from scratch or migrating, and what integrations you need. We scope and price everything before we start, so there are no surprise invoices. You’ll get a straight number after your free consultation.
Both. Sanity’s strongest on the content side, but it also pairs well with Shopify for stores that need more storytelling than a standard theme allows.
Yes, because Sanity structures your content properly instead of burying it in page builder markup, making it easier for Google and AI tools like ChatGPT and Gemini to read your site and understand what you actually do.
Ready to Build a Website That Keeps Up with You?
Your old CMS won’t fix itself, and neither will the customers it’s costing you.
Tell us about your business, and we’ll show you exactly what a Sanity website could do that your current one can’t.
Fill out the form, and we’ll be in touch.
Choose numero® When Numbers Matter.

“Great communication, thorough analysis and planning, and noticeable improvements to our outcomes immediately.”


