Office Network Setup: What a New Business Actually Needs

A business network needs five things: enough cabling run to the right places, a managed switch, a proper firewall, business-grade Wi-Fi with guest traffic kept separate, and an internet connection with a plan for when it fails. Everything beyond that is either a genuine requirement of your specific business or something being sold to you.

Most offices get this wrong in the same direction. They spend on Wi-Fi to avoid running cable, then spend more later fixing the problems that creates. Here is the order that works.

1. Cabling — decided before you move in, not after

This is the part people skip, and it is the only part that is genuinely painful to change later. Once furniture is in and staff are working, running new cable means ceiling tiles, dust and interruption.

Practical rules worth following:

• Two network ports per desk, not one. The second one costs almost nothing while the walls are open and saves a mess later.
• Cable every device that does not move. Desktops, printers, point-of-sale terminals, security cameras, the conference room display. Wi-Fi is for things that move.
• Cable the Wi-Fi access points too. Access points need wired backhaul to work properly; mesh systems that relay wirelessly halve their own throughput.
• Cat6 as the baseline. The cable is a small fraction of the cost; the labour to install it is the expense, and labour costs the same whichever cable you pull.
• One tidy location for the equipment. Not a cupboard with no ventilation, and not under someone’s desk where it gets kicked.

Proper structured cabling installed once is cheaper than Wi-Fi extenders bought three times.

2. The switch — and why the cheap one costs more

A switch connects your wired devices. An unmanaged one from an office supply store works, in the sense that traffic passes through it. What it cannot do is separate traffic, prioritise anything, power your access points and cameras, or tell you which port a problem is on.

A managed switch gives you three things that matter: VLANs so guest, staff and camera traffic stay apart; Power over Ethernet so access points, phones and cameras need no separate power supply at the ceiling; and visibility, so a fault is diagnosed rather than guessed at. The price difference is real but modest, and it is paid once. Business switches and routers are one of the few places where the cheap option reliably costs more within two years.

3. The firewall — not the box your ISP supplied

The router from your internet provider is built to deliver a connection, not to defend a business. It typically offers no content filtering, no intrusion prevention, no useful logging, no segmentation, and firmware updates that arrive when the provider feels like it.

A business firewall sits between your network and the internet and does the work the ISP box does not: inspecting traffic rather than merely passing it, blocking known-malicious destinations, keeping guest and staff networks genuinely separate, providing secure remote access for staff who work from home, and recording what happened when you need to find out.

The configuration matters more than the brand. We regularly find capable firewalls installed years ago, never updated, with rules that were added for a temporary reason and never removed — which is close to having no firewall while believing you do.

4. Wi-Fi — coverage is the wrong measurement

Wi-Fi gets sold on coverage: one access point that reaches the whole floor. Coverage is not the problem in most offices. Capacity is. Thirty people on video calls through a single access point will all have a bad time even though the signal shows full bars.

What actually matters:

• Several smaller access points, not one powerful one. More points at lower power handle more devices and roam better.
• Separate guest network. Visitors should reach the internet and nothing else — not your files, not your printers, not your cameras.
• A separate network for smart devices. Thermostats, TVs and cameras are the least-updated things you own; they do not belong beside your accounting data.
• Placement over specifications. An access point above a ceiling tile in the corner of the floor will underperform a cheaper one mounted correctly.

In older and heritage buildings — common across New Westminster, Vancouver and parts of Burnaby — thick masonry defeats optimistic coverage plans entirely, and the answer is more access points on cable rather than a stronger signal. Getting Wi-Fi solutions right is mostly a design question, not a shopping one.

5. Internet — and what happens when it stops

Business internet differs from residential in ways that matter: a static IP if you need remote access, an upload speed that supports video calls and cloud file access rather than just downloads, and a support line that answers with a repair commitment rather than a queue position.

The question most businesses have not answered is what happens when it fails. For a professional office, a few hours offline is expensive but survivable. For a clinic, a restaurant or a logistics operation, it stops trading. A second connection from a different provider — or even a mobile failover that switches automatically — costs far less than the day it saves.

What gets oversold

Three things come up repeatedly in quotes for small offices and rarely earn their cost:

• Enterprise hardware for twelve people. Equipment designed for a thousand users brings licensing and complexity you will never use.
• 10-gigabit everywhere. Useful between a server and a switch if you move very large files. Pointless to every desk when your internet connection is a fraction of that speed.
• A server you may not need. Many small businesses running Microsoft 365 have no remaining reason to own one. Buying a server because the office feels like it should have one is an expensive habit.

The order to do it in

If you are fitting out a new office or moving, this sequence avoids rework: confirm the internet connection and its lead time first, because it is the longest wait and nothing else matters without it. Then cable, while the space is empty. Then equipment — firewall, switch, access points — configured before anyone arrives. Then test with real usage, not a speed test: several people on video calls at once, large files opening, printing from the far corner.

Lead times catch people out. Business internet installation can take weeks. Cabling needs to happen before furniture. A move date fixed without checking these two is a move date that slips.

Frequently asked questions

Do we still need cabling if we have good Wi-Fi?

Yes. Anything that does not move should be wired, and access points themselves need cable to perform properly. Wi-Fi is for mobility, not as a replacement for the network.

How much should a small office network cost?

It depends mostly on the number of desks and the building itself — cabling labour in an older building with concrete or heritage constraints costs considerably more than in a modern open floor. Equipment for a ten to twenty person office is usually the smaller half of the bill.

Can we reuse our existing equipment when we move?

Often, partly. Switches and access points frequently move across if they are still supported by the manufacturer and still fit the new layout. We check what is worth keeping before quoting replacements, because some of it usually is.

How long does an office network setup take?

Cabling is typically a few days depending on size and building access. Equipment configuration and testing is usually another day or two. The internet connection is the long pole — order it first.

What type of switch should a small office use?

A managed gigabit switch with Power over Ethernet (PoE) is the usual choice. PoE lets the same cable power Wi-Fi access points, phones and cameras, and a managed switch lets you separate staff, guest and device traffic into their own networks. Buy enough ports for every cable drop plus roughly 20 to 30 percent spare for growth.

Does a small business need a firewall?

Yes. The router supplied by your internet provider offers only basic protection. A business firewall adds threat filtering, secure remote access, separate guest and staff networks and logs you can review after an incident. Our guide on router vs business firewall explains the difference in detail.

Insmart Technology provides networking solutions, network design and network security for businesses across Surrey and the Lower Mainland, including office moves and new fit-outs.

About the author: Naqash Bin Iqbal is an SEO Specialist at Insmart Technology, a Surrey-based managed IT and cybersecurity provider.