Choose numero® When Numbers Matter

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.

A2W testimonial video
“The best team in the world.”
A2W logo
Annie Jefferson
Director A2W Plumbing
148%Increase in conversions since launch

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.

Get a Free Sanity Audit

However You’re Starting, We’ll Get You There

Starting from Scratch

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.

Replacing a Clunky CMS

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.

Migrating from Another Platform

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.

Scaling into Ecommerce or Complex Integrations

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

Customer testimonial video featuring A2W Plumbing
“A great experience with the team.”
A2W Logo
Annie Jefferson
Director A2W Plumbing
148%Increase in conversions since launch

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.

Book Your Free Consultation

From ‘Is This Even Possible?’ to ‘How Did You Build That So Fast?’

Kaituna Cascades
Play video
227%
increase in total conversions

Kaituna Cascades

Kaituna Cascades teamed up with numero® in 2017 to revamp their marketing strategy. By optimising their website, hosting, SEO, and Google Ads, we help...

A2W
Play video
148%
increase in conversions

A2W

A2W's goal is to become the household name for hot water heat pumps in New Zealand. This is new technology and is cheaper than gas hot water heating –...

Wellington Joinery
Play video
150%
increase in Google Ads leads

Wellington Joinery

Wellington Joinery partnered with numero® to transform their digital presence and drive measurable growth. Through strategic website optimisation, tar...

Why Businesses Choose numero® as Their Sanity CMS Agency

NZ-Based Sanity Specialists

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

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

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

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

Customer 1
Customer 2
Customer 3
Customer 4
100+ reviews
Google

“To begin with, I took some convincing from Gus to update our website as I thought it was ok as it was. But now that the new site is up and running and I'm using the new booking system, I realise that it really did need upgrading. Sanket made the process easy and it has reduced my work load. Yay! Absolutely recommend these guys. They take the time to get to know your business and to understand what your needs are.”

Admin Raglan Fishing Charters

Admin Raglan Fishing Charters

Raglan Fishing Charters

Google

“Great experience working with Numero- they revamped my website and made my Google advertising far more efficient, its made a huge difference at my ENT practice. Definitely recommend these guys- great enthusiasm and communication. Thanks Sanket for your continued work!”

Benjamin Chan

Benjamin Chan

Google

“We relied on Numero to assist Window Robots Ltd in driving sales with our new products in the NZ Marketplace. They were friendly, fast and promoted excellence in Website development, only trouble was, the charges wiped out any profit so 😭 unfortunately, had to say goodbye.”

Julie Arnold

Julie Arnold

Google

“The team at Numero have increased leads to our NZ and AU websites through well planned organic seo, search, remarketing, and display ads. They invest time in understanding our product range and target markets & they excel in running campaigns; we communicate our needs, and Numero makes sure the campaigns are seen by our target markets. We highly recommend their services.”

Rebecca King

Rebecca King

Louvretec NZ & Australia

Google

“Numero have completed a complete brand new website build for us, and looked after its ongoing maintenance and design/feature upgrades. I cannot thank the team enough for their fantastic work, attention to detail and prompt communication. Harry and Daniel especially have made any ongoing upgrades a seamless process. I can highly recommend Numero to anyone looking for a exceptional web development team.”

Finn Cable

Finn Cable

Whitestone Group

Google

“Loved working with the guys at Numero on our new Rapid Slabs & Precast website. From our first conversation to scope the project to implementation, we were fully supported through what was a seamless process! Highly recommend and looking forward to working with them again.”

Trang Jones

Trang Jones

Google

“I can highly recommend Numero as a marketing agency. Gus and Oliver are super friendly, informative and experts at what they do. Since using them we have had a massive increase in sales to our website. We have also seen a big increase in phone calls generated by their ads as well as emails and texts. Bad Offroad is very happy to be partnering with Numero on all our marketing efforts! They are currently building us a new Shopify website and I am very excited to see that happen”

Anthony Yates

Anthony Yates

Bad Offroad

Google

“We're pleased with the outstanding service provided by Numero! Their expertise in optimising our website's performance has made a significant impact. The site now loads quickly and efficiently, and they've also successfully addressed existing issues. Additionally, helping us with Google ads which has been great. We appreciate their hard work and look forward to continuing our partnership.”

Artemis Shirvani

Artemis Shirvani

Google

“Numero have helped me with a number of projects including development of a website and SEO. What has impressed me most are the results and transparency in the teams communications - highly recommended”

Jamie McKenzie

Jamie McKenzie

Google

“Really happy to recommend this company, used them to develop my website, service was fantastic. Liam is incredibly helpful, will continue to work with them”

Alice Young

Alice Young

Google

“We've been with Numero for a few years now, and our account manager Liam has been fantastic. The team at Numero created our first website, and Liam's SEO expertise has greatly improved our online presence. Highly recommend Numero for all your website and SEO needs!”

Stoddard Road Laundromat

Stoddard Road Laundromat

Google

“Prompt and professional. Numero have been great to work with in hosting and managing our charity's website.”

Alesha Hobbs

Alesha Hobbs

Google

“We've been working with Numero for over a year now and the value, professionalism and skills they've brought to our business have been invaluable, from complete website rebuild to the SEO package we currently run - Liam has knocked it out of the park. Would highly recommend. Outlast Builders Limited”

sam turner

sam turner

Google

“Great company to work with. We have been with them for a few years now. They are always friendly and supportive and eager to see our page ranking well. They're always happy to help and make modifications or support modifications to the website as well.”

Kylie Wallace

Kylie Wallace

Google

“I recently had the pleasure of working with Numero Agency to design and develop my website, and I couldn't be happier with the results. From start to finish, the team at Numero Agency was professional, attentive, and highly skilled. Overall, I highly recommend Numero Agency for website design and development. Their expertise, attention to detail, and commitment to client satisfaction are truly commendable. Thanks to Pannah Begum and Daniel Pinto, they have been very helpful and understanding :)”

Rabin Bashyal

Rabin Bashyal

Google

“These guys built and maintain our roofing company website and takes care of Adwords etc. We have had a substantial increase in good inquiries since our dealings with him. Makes everything easy, no hidden costs, would recommend getting on board with these guys. Wow 5 years later and these guys still have us ranking at number one! Great monthly updates on reports. Need anything changed and they are right onto it. Highly recommend.”

Vicki Templeton

Vicki Templeton

Google

“A brilliant creative and humble crew who have related to our brand and content to formulate a website we’re proud of.”

LIGHTSHIFT PICTURES

LIGHTSHIFT PICTURES

Google

“Very efficient, relatable, good communication. My website is exactly what I asked for and the explanation of the SEO work is very easy to understand. Very happy and would definitely use again.”

Clare Robinson

Clare Robinson

Google

“Nick and his team at BWG is great to deal with. They updated our website and arranged everything we needed. They were always available if we had questions, and came back to us within a timely manner. The after service and follow up communication has been great.”

Kelly Ohlson

Kelly Ohlson

Google

“Great website and great service while making the website. great support team too.”

geetinder pal singh

geetinder pal singh

Google

“I used BWG to design and build my companies website and from the beginning planning stages through to the final completion their service was exceptional. I highly recommend this company to anyone planning on getting a website of their own. Cheers Jamie”

Jamie Lewis

Jamie Lewis

Google

“BWG are an amazing team across the board. I got in touch with several companies to enquire about redesigning my work website and Nick at BWG was the only one of those who took the time to call me up and assess our needs. All the way through the design process, the whole team was incredibly cooperative, responsive and helpful, it made what had previously been a daunting task for me an absolute breeze. Their communication and professionalism is second-to-none. Highly recommend them to anyone not sure of where to start with getting a new website going, they're truly tremendous!”

Jonni Pannekoek

Jonni Pannekoek

Google

“I was contacted by BWG about redoing my website. I took some time to think about it and agreed it could be better. BWG delivered on time and with a awesome website. Price was good and they were really easy to work with. Absolutely a pleasure to deal with. Give them a go and you won't be disappointed.”

Darryl Knauf

Darryl Knauf

Google

“Business Website Group were quick, professional and available for our calls when setting up our webpage and design. Highly recommend!”

Ruez Kessell

Ruez Kessell

Google

“We have been using Business website group to create and develop our web page over the past 6 months, Richard and his team have done a great job at wording and laying out relevant business themes on the page. Thanks Team”

lester marshall

lester marshall

Google

“International Education Association has appreciated Business Website Group's responsiveness to our changing market as we've adapted to online delivery following Covid-19 disruptions. Their timely technical assistance has been critical for enabling us to promote events and connect to our members”

Chris Beard

Chris Beard

Google

“We engaged with Business Website Group at the end of last year to manage our SEO. even after one month we have amazing results with our rankings. Great to deal with and always available to help explain the process. Thanks BWG Raz Viper Electrical Ltd”

Raz Van Houtte

Raz Van Houtte

Google

“My website design project for my auckland based company worked exactly as planned. My google ads and seo worked well too”

Alex Anderson

Alex Anderson

Google

“I have recently used the services of Business Website Group to set up a website for my new business. The website is AMAZING!!! the look of it the layout is everything and way more than I expected. Money well spent I say. I highly recommend using this group of awesomeness designers. Great work and thank you.”

Donovan Burrows

Donovan Burrows

Google

“Great team, great service, great result. Special mention to Nick, who liaised brilliantly with the team to ensure my requests and needs were included in the final website product. Look no further.”

Alexander Shepherd

Alexander Shepherd

Google

“Great Team at the Business Website group. These guys will do everything they can to help get your business up and running and build an amazing, functional website. They offer great suggestions to help make your website more attractive to clients.”

joseph keenan

joseph keenan

Google

“If you’re looking for professionalism then you’ll be in great hands with Business Website Group! JohnTae and Richard are the guys!”

Vanity Pictures

Vanity Pictures

Google

“we are very happy with the products from Richard and his team. highly recommended for people who need website or anything in relation to marketing.”

Daniel Yoo

Daniel Yoo

Google

“Richard is easy to get along with, always listens to client’s requirements and designed a great website, with patience shown in getting the website ‘just right’ for us. He also set up a new email system for us, and is handling our Adwords, be it on our small company budget. Highly recommend his services.”

Bev Major

Bev Major

Google

“Excellent. Business Website Group really know there stuff !! Our website has got lots more online bookings thanks to these guys. The more you can spend - the more you will get back in the long run. Cheers Blue - Kaitunacascades.co.nz”

Sam Ricketts

Sam Ricketts

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.

Featured Case Study
Featured Client Logo
101%
increase to google ads conversion value.

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