The case for regular service
A residential garage door completes something on the order of fifteen hundred cycles in a year. Each cycle flexes the springs, turns every roller, works every hinge, and loads the cables. The parts are robust, yet none of them is permanent, and their wear is gradual enough to pass unnoticed until one of them gives way.
Maintenance serves three ends. It keeps the door safe, since the counterbalance stores considerable energy and its components should be inspected by someone who knows what a failing cable or a fatigued spring looks like. It extends the life of the door and, particularly, of the operator, which is the first casualty of a door left out of balance. And it allows repairs to be made at a time of the owner’s choosing.
What our inspection covers
We work through the door in a fixed order. The list below is the full scope of a maintenance visit.
| Component | What we examine | What we do |
|---|---|---|
| Balance | Door tested by hand at three heights with the operator disconnected | Adjust spring tension where the door drifts |
| Springs | Corrosion, gaps, distortion of the coils | Lubricate. Advise on remaining life. |
| Cables | Broken strands, rust at the lower ends, seating in the drums | Report any deterioration. Replace if agreed. |
| Drums and bearings | Cracks, wear in the grooves, roughness or play | Lubricate bearings. Note any that are failing. |
| Rollers | Free rotation, wobble, flat spots | Lubricate where the type requires it |
| Hinges | Cracks, elongated pivot holes | Tighten fasteners. Lubricate pivots. |
| Track | Plumb, level, spacing, security of fasteners | Tighten and correct alignment. Clean the running surfaces. |
| Sections | Bowing, cracked stiles, corrosion at the bottom rail | Tighten struts and brackets. Report damage. |
| Seals | Flexibility and contact at the floor, jambs, and header | Adjust stops. Advise on replacement. |
| Operator | Travel limits, force, mounting, drive condition | Adjust. Lubricate the rail where specified. |
| Safety systems | Photoelectric sensors and contact reversal | Test both. Realign sensors as needed. |
| Controls | Wall station, remotes, exterior keypad | Test. Note weak batteries. |
At the close of the visit, we give the owner a short account: what is in good order, what has been adjusted, and what will want attention in the coming year or two. No further work is undertaken without agreement.
The operator is the first casualty of a door left out of balance.
What the owner may do between visits
A few simple observances, none requiring tools, will keep an owner informed of the door’s condition.
Each month
Watch the door through one full cycle from inside the garage. Its movement should be even, and its sound should be familiar. Look along the cables for any fraying, and at the springs for gaps or heavy rust.
Each season
Test the safety systems. Pass an object through the beam of the photoelectric sensors while the door is closing, and the door should stop and reverse. Then lay a length of two-by-four flat on the floor beneath the door and close it. On meeting the timber, the door should reverse. If either test fails, the operator’s close function should not be used until it has been corrected.
Twice a year
Lubricate the moving parts with a product made for garage doors, of either the silicone or the lithium type. Apply it sparingly to the hinge pivots, to the bearings of steel rollers, along the springs, and to the bearing plates at the ends of the spring shaft. Do not lubricate the track. It should be wiped clean and left dry, since a greased track gathers grit and encourages the rollers to slide.
Each autumn
Close the door and look for daylight at its edges. Press the bottom seal between finger and thumb. If it has hardened or cracked, it should be renewed before winter.






