Garage door replacement, GTA.

In an attached garage, yes — and more than the R-value alone suggests, because the garage shares a wall and usually a ceiling with heated rooms. In a detached garage you are not heating, it matters much less. If the garage is a workshop or a gym, insulate it; if it stores a lawnmower, spend the money on the opener instead.

Torsion — mounted on a shaft above the opening — last longer, balance the door better and fail far more safely. Extension springs along the tracks are cheaper and are what many builder-grade doors ship with. If you are replacing anyway, torsion is the upgrade worth taking.

Either way: do not adjust or replace a spring yourself. They hold enormous energy and they are the reason garage doors send people to hospital. This is genuinely not a DIY item.

Often, if it is in good condition and rated for the new door's weight — an insulated door is heavier than the builder's door it replaces. If the existing unit predates modern safety sensors, replace it. Photo-eye sensors on an auto-reversing opener are not optional on anything built in the last few decades.

That is usually why people call us rather than a door company. A new door against a cracked apron, rotten jambs or a slab that has heaved looks half-finished. We do the door, the framing, the epoxy floor and the interlock apron outside it as one job.