How long should business laptops, PCs, servers and switches last?

Why age matters even when it still works

Old equipment rarely fails in one dramatic moment. It slows down, the battery holds less charge, updates take longer, and eventually the operating system or firmware stops getting security fixes. That last point is the real problem. A five-year-old laptop that still turns on can be perfectly usable for email, but if it cannot run a supported version of Windows it becomes an easy target and may breach your cyber insurance conditions.

Age also changes the economics of repair. Once a device is out of warranty, a failed motherboard or screen can cost a large fraction of a new machine, and parts become harder to find. Planning replacements before that point means you choose when the money is spent instead of reacting to a breakdown on a busy Monday.

Laptops and desktops

A well-built business laptop used daily typically gives three to five good years. Batteries wear first and can often be replaced, but hinges, keyboards and ports take a beating from daily carrying. Many offices settle on a four-year cycle, matched to a four-year warranty where the manufacturer offers one, so every laptop is covered for its whole working life.

Desktops sit still and stay cooler, so they tend to last longer, often five or six years. The limit is usually whether the machine can run the current version of Windows and whether it has enough memory for modern software. When Windows 10 support ended, plenty of otherwise healthy desktops were retired early because their processors were not on the Windows 11 supported list, which is a good reminder to check operating system support when buying.

Servers, storage and network gear

Servers are often kept for five to seven years, usually tied to the length of the extended hardware warranty bought with them. Once that warranty ends, a failed drive controller or power supply can leave the business without its files or line-of-business application for days. Many small offices now replace an ageing server with cloud services rather than new hardware, which is worth considering well before the warranty runs out.

Network switches and wireless access points are long-lived and can run for seven years or more, but they need firmware updates to stay secure. Firewalls are different: they rely on a vendor subscription for threat updates, and once a model reaches end of support it should be replaced regardless of how well it seems to be running. A NAS box follows similar rules to a server, and the drives inside should be watched closely after their third or fourth year.

Printers, phones and the rest

Office multifunction printers often run five years or more, especially on a service contract where worn parts are replaced, though the end of a lease is a natural point to review. Desk phones and headsets last a long time, but phone systems may be retired as a whole when moving to Teams or a cloud phone service. Business mobile phones are usually replaced every two to four years as software support ends.

Uninterruptible power supply batteries are the item most often forgotten. They usually need replacing every three to five years, and an old battery can fail the moment the power goes, which is exactly when you need it. Monitors, docks and keyboards are cheap enough to replace as they fail, though standardising them alongside laptops helps.

Turning lifespans into a replacement plan

Start with a list of every device, its purchase date and its warranty end date. From that, you can see which items fall due each year and smooth the spending out. Replacing a quarter of the laptops each year is far easier on cash flow than replacing everything at once when the last batch hits the end of its life together.

Review the plan each year against two questions: is the device still supported by its vendor, and is it still meeting the user's needs? Replace earlier for heavy users or failing hardware; stretch a cycle where a device is lightly used and still supported. Leasing can also fix the cycle in place, because the agreement ends and the equipment is refreshed on a set date.

Signs a device is due now, whatever its age

Some devices need replacing early. Warning signs include a laptop that takes several minutes to start, regular blue-screen crashes, a battery that lasts under two hours, fans running loudly during basic tasks, or a staff member who has started bringing a personal device because theirs is too slow. Each of these costs a little productivity every day, and over a year that adds up to more than the price of a replacement.

For servers and network gear, look for disk warnings in the logs, repeated restarts, firmware that can no longer be updated, or a vendor end-of-life notice. Don't wait for a complete failure on equipment the whole office relies on. A planned changeover on a Saturday is far less disruptive than an emergency on a weekday.