NAS vs Cloud Storage for Business

Picture a small architecture practice in Streatham. Six people, thousands of drawings, and files large enough to make email useless. For years everything lived on a NAS box under the reception desk — quick, cheap, always there. Then one drive failed, then a second, and a weekend was lost recovering what could be saved. Down the road, an accountancy firm made the opposite bet: everything in the cloud, nothing on-site. Their files are safe, but staff grumble every month-end that opening large working files over the office broadband feels slow.

Both firms asked the same question you’re probably asking: NAS or cloud — which is right for us? The honest answer is that it depends on how you work, and often the best setup borrows from both. Here’s how to decide without overspending or painting yourself into a corner.

What each one actually is

A NAS (Network Attached Storage) is a small box of hard drives that sits on your office network. Everyone connects to it over the local network, so file access is fast and there’s no monthly fee once you’ve bought it. You own the hardware and the data sits in your building.

Cloud storage — OneDrive, SharePoint, Google Drive, Dropbox and the like — keeps your files on a provider’s servers and syncs them to each device. You pay per user per month, you reach your files from anywhere, and someone else looks after the hardware, power and physical security.

Neither is simply better. They trade different things.

Speed and everyday access

For big files opened constantly — CAD drawings, video, large design or engineering files — a NAS on a wired office network is hard to beat. The data travels a few metres, not across the internet, so it feels instant.

Cloud storage depends on your broadband. Modern tools sync a local copy so you’re not always downloading, but genuinely large files, or a whole team hammering the connection at once, can expose a slow or contended line. If most of your work is documents, spreadsheets and shared folders, you’ll rarely notice. If it’s heavy media, it matters. A well-planned office network and Wi-Fi makes either option far smoother — plenty of “the cloud is slow” complaints are really a tired router or a saturated broadband line.

Remote and hybrid working

This is where the cloud pulls ahead. If your team works from home, visits clients, or splits time across sites, cloud storage means the same files, up to date, on every device with no VPN gymnastics. Tools like Microsoft 365 and SharePoint also add proper co-authoring, version history and sharing controls that a bare NAS can’t match.

A NAS can be reached remotely, but doing it safely takes a VPN and careful setup. Exposing a NAS straight to the internet is a genuine risk — plenty of ransomware waves have targeted exactly that. For a mostly office-based team, remote access to a NAS is a solved problem. For a mostly remote team, the cloud is the natural home.

The bit people get wrong: backup

Here’s the trap that caught the architecture firm. A NAS is not a backup. It’s a single live copy everyone works from. If drives fail together, if ransomware encrypts it, or if there’s a fire or flood, that copy is gone. A NAS needs its own separate backup, ideally off-site.

Cloud storage is more resilient — the provider keeps multiple copies across data centres — but it isn’t a backup either. If a staff member deletes a folder, or an account is compromised and files are encrypted, sync obediently copies that change everywhere. This is why proper backup and business continuity sits on top of whichever storage you choose, keeping versioned copies you can roll back to. When things go badly wrong, the difference between a bad afternoon and a lost week is data recovery — and recovery is only possible if a real backup existed first.

Cost, honestly

A NAS is money up front — the box and drives — then very little after, until it ages out in five years or so and needs replacing. Cloud storage is a predictable monthly cost per user that never stops but never demands a big lump either. For a small team, the cloud often works out simpler once you count the hidden costs of a NAS: backup, power, replacement drives, and someone to keep it secure. For data-heavy firms with large archives, owning the storage can be cheaper at scale.

A checklist to choose

• Where does your team work? Mostly one office → NAS is viable. Hybrid or remote → lean cloud.
• How big are your files? Everyday documents → cloud is fine. Heavy CAD, video or design → a NAS gives you local speed.
• What’s your backup plan? Whichever you pick, write down where the second copy lives. No answer means you’re not protected yet.
• Who keeps it secure and updated? A NAS needs patching, monitoring and strong remote-access controls. Cloud needs two-factor login and sensible sharing rules.
• What does compliance require? Regulated sectors should confirm where data is hosted and keep an audit trail.
• What’s the five-year cost? Compare the NAS plus its backup and replacement against the monthly cloud figure for your headcount.

For many South London and Surrey businesses the sensible answer is a blend: a fast NAS for large working files, the cloud for collaboration and remote access, and a real backup underneath both. Get the mix wrong and you either overspend or leave a gap where your data should be protected.

If you’d like a straight recommendation for how your business actually works — not a sales pitch for whichever option earns us more — we’re happy to look at your setup and tell you honestly. Have a look at how we handle backup and continuity, or just get in touch and we’ll talk it through.