Automating a door Cost Calculator

How this calculator works

Every figure in this calculator is the one published in the cost table on our automating a door guide. Pick the option that matches your job and the calculator returns that published range, adjusted for your region - it does not model anything the guide does not already say.

That is deliberate. A calculator whose rates drift from the page it sits under is worse than no calculator, because two numbers on the same site disagree.

What it cannot know: access, the condition of what is already there, and anything structural. Those are what separate three real quotes from each other.

What decides whether your existing door can be automated

Most doors can take a motor, but not all of them take the same one, and a few are more trouble than they’re worth. The mechanism you already have decides the kit and the labour, so it’s the first thing a fitter will look at.

Sectional and retractable up-and-over doors are the easy wins. They run on tracks and stay rigid as they move, so a standard rail-and-motor operator bolts straight on. A canopy up-and-over is fussier – part of the door sits outside the frame when it’s open, so it often needs conversion arms or a different bracket to work safely. Roller doors don’t use an overhead motor at all; they take a tubular motor inside the barrel, which is a different job again.

Balance is the other thing that makes or breaks a retrofit. A motor is sized to move a door that’s already balanced by its own springs – it isn’t there to haul a heavy or sticking door up by force. If the springs are tired or the door binds in its tracks, that wants sorting first, or the operator will struggle and wear out early.

Safety isn’t optional on a powered door. A powered garage door has to stop and reverse if something’s in the way, so photocells across the opening and an auto-reverse motor are part of the price, not an upgrade. Skimp here and you’ve built a hazard.

Then there’s power. The motor needs a socket near the door, ideally a fused spur put in by an electrician. If the garage has no supply, factor in getting one run – that can cost more than the operator itself, and it’s the part people forget. Remotes usually come in pairs, and a keypad or a phone-controlled receiver can be added if you want to open up without a fob.

One honest caveat: if the door itself is old, dented or poorly balanced, a new automated door can work out better value than a retrofit on a tired one. The guide’s figures cover the operator, rails, safety gear and fitting – but they assume the door you’re motorising is sound.