Replace springs in pairs?

[Tachyon]

One of the front springs on my Focus broke yesterday and I had my dad get it checked out while I used his car for work. I was under the impression springs got replaced in pairs however the mechanic said he'd do that if I wanted although it wasn't necessary. It's not expensive so cost isn't a problem, so is it worth getting both done at once or will the car be fine with getting one side done?

 

[Tachyon]

Thanks for the quick reply. Appreciated.

 

[Tachyon]

Yup, I had a snapped spring a while ago and did both to be sure. I also did both shocks too as there was no extra labour charge, may be worth considering if your car's knocking on a bit (mine was 10years old so made a good improvement).

Car is 9 year old but I know very little about cars and generally wait until something breaks or the guy at the MOT centre fails the car & I have to get it fixed. I'll have a look into shocks as the car is going great other than a broken spring, so it might be worth doing as I'll unlikely change it his year.