Dell, HP or Lenovo would send a technician to your office (or home office). For simple repairs (e.g. battery), they can also send the replacement part and you can swap it yourself -- two of my colleagues chose this during Covid lockdown, and changed the batteries in their work laptops.

And "a matter of days" is a low bar. These companies offer next-business-day on-site support.

Here's an example for a Dell Chromebook, although I'm not familiar with buying individually from a reseller:

> Keep your 2-in-1 laptop protected with the 1-Year Mail-In to 3-Year Next Business Day Warranty Upgrade for Chromebooks from Dell. Providing 3 years of coverage, this manufacturer warranty upgrade features next business day onsite hardware support following remote diagnosis. Plus, get technical support via phone or online during business hours and self-service case management and parts dispatch. $63.50.

https://www.bhphotovideo.com/c/product/1692748-REG/dell_848_...