Toolkit or Trouble: Seven Laptop Upgrades Worth Doing in 2026 — and Three to Leave Alone

Laptop makers have spent the last decade soldering components and gluing batteries shut, but 2026 is not a total lost cause. Business-grade machines still offer access panels, service manuals and part numbers. If you bought a £600 laptop and want another two years out of it, a few careful upgrades can be better value than a new machine. The trick is knowing where to stop.

Before you pick up a screwdriver

Download the service manual for your exact model. Clean the desk, use a cheap anti-static wrist strap, keep the screws in an egg carton and photograph every cable before you pull it. In the UK, opening a laptop does not automatically void your legal rights under the Consumer Rights Act 2015, but damage you cause can give a retailer or manufacturer a reason to refuse a warranty claim. Check the warranty terms first. If the laptop is under a manufacturer warranty and the job is not listed as user-serviceable, either wait or use an approved repairer.

Seven upgrades that usually make sense

1. RAM, if it is slotted

Check the manual. Many 14-inch and 15-inch business laptops have one or two SO-DIMM slots. A 16GB kit costs roughly £40 to £80 in 2026; 32GB is £70 to £130. Match the speed and type, and buy from a UK seller with a returns policy. If the memory is soldered, stop.

2. M.2 NVMe SSD

A 1TB NVMe drive is now £40 to £80. Check whether your slot is PCIe 3.0 or 4.0, the length (2280 is common) and whether you need a single- or double-sided drive. Clone the old drive or do a clean Windows install. Keep the old SSD as an external backup.

3. 2.5-inch SSD in an older laptop

If you have a pre-2020 machine with a hard drive, a 2.5-inch SSD is a £30 to £60 upgrade that makes more difference than any software tweak. Check the 7mm height and the SATA connector.

4. A user-replaceable battery

Some business laptops still have a slide latch or a few screws. A genuine battery is £60 to £100; a reputable compatible one is £35 to £60. Avoid no-name cells. If the battery is glued under the chassis, this moves into 'repair shop' territory.

5. Wi-Fi card, if it is not soldered

An Intel AX210 or similar card costs £15 to £35 and can transform an old laptop's wireless. Check for BIOS whitelists on older Lenovo and HP machines, and make sure the antenna cables are seated properly.

6. Keyboard on a business laptop

Dell Latitude, Lenovo ThinkPad and HP EliteBook keyboards are often £25 to £60 and come out with a couple of screws and a ribbon cable. Consumer laptops with keyboards bonded to the top case are a different job.

7. Thermal paste and fan cleaning

If the laptop sounds like a hairdryer, a £8 to £15 tube of decent paste, some isopropyl alcohol and 30 minutes can lower temperatures. Follow the service manual, use a small pea-sized amount and do not overtighten the heatsink. If the machine is under warranty, this is one to leave to an approved technician.

Three jobs that can void your warranty

1. Soldered RAM or CPU upgrades

Microsoldering a new memory chip onto the motherboard is a specialist job. It costs £150 or more, risks killing the board and will almost certainly end your warranty. It is rarely worth it on a £600 laptop.

2. GPU reballing or CPU replacement

Same story. Reballing a GPU or swapping a CPU on a soldered board is for repair technicians with the right equipment, not a kitchen-table project. The parts are expensive and the failure rate is high.

3. BIOS mods, chassis drilling and liquid metal

Flashing a modified BIOS, drilling the case for extra cooling or using liquid metal without the right barriers can brick the machine or cause shorts. Manufacturers treat this as damage, not normal wear. If you want better cooling, clean the fans and use a stand.

When a local repair shop is the smarter spend

If the laptop is under warranty, the battery is glued, the screen is cracked, or there is liquid damage, get a quote from a local repair shop. Expect £25 to £50 for a diagnostic and £40 to £80 an hour for labour in the UK. A screen replacement on a £600 laptop might be £90 to £180 fitted. That can still be cheaper than a new machine, but get the quote in writing before you agree.

A sensible order for a £600 laptop

Clean the fans and check the temperatures first. Then add RAM to 16GB if you run lots of browser tabs. Then fit a 1TB SSD if you are always deleting files. Replace the battery if it no longer lasts a commute. Skip the rest unless you have a specific need. A £100 to £180 parts budget is realistic for those three jobs.

The bottom line

The best upgrade is the one your laptop was designed to accept. Check the service manual, buy known parts, keep your receipts and stop before you reach the soldering iron. If you are not sure, ask a repair shop for advice. Just4Laptops would rather see a well-maintained £600 laptop last another three years than see you buy a new one because of a £40 RAM stick.