Incorrect cable tension causes uneven door lift, accelerated wear, and premature cable failure. We diagnose and balance cable tension precisely — ensuring equal load distribution on both sides.
Cable tension must match the spring system and door weight exactly. Too tight or too loose causes mechanical problems that compound over time.
One side lower than the other is the clearest sign of tension imbalance between cables.
Door that moves in jumps or hesitates mid-travel has uneven resistance from unbalanced cables.
Visible slack in one cable means that side isn't contributing to the lift — all load is on the other.
The overloaded cable wears 2–3x faster when carrying the full door weight alone.
We adjust cable tension in coordination with the spring system — not in isolation.
Cable tension cannot be set correctly without also verifying spring tension — we check both.
We use torque measurement to set spring tension, then verify equal cable tension on both sides.
Door hang checked at multiple positions — fully open, halfway, fully closed.
Five full open/close cycles run to confirm consistent, smooth operation before we leave.
Proper cable tension extends the life of every component in the system. Book a same-day adjustment.
phone_in_talk778 805-4911Get a Free Estimate Today
Same-day service available · No obligation
Call us now — our technicians are standing by for same-day service.
call778 805-4911Available 7 days a week · Serving Greater Vancouver & Calgary