I believe the StrongArm website indicates a 1-year warranty on their lifts. Does it include labor? If you put them on yourself in 10-15 minutes, then that's on you. If you paid a shop to have them installed, it's whatever their labor policy is. I have a local shop that I have do complicated stuff I can't/don't want to do. Their policy is 24-month/24K miles warranty on both parts and labor. As for "national", if you bought them through someplace like Auto Zone, Advanced, O'Reilly's, etc., then yeah. I mean, for like $10 a piece, and 10-15 minutes of my time every few years, well worth the savings.