If you are considering an electric roller garage door, the electrics are usually the first practical question. The honest answer is simpler than most people expect: a standard 13-amp mains socket inside the garage. That is it. No three-phase supply, no complicated control wiring and, in most homes, no fuse board work at all.
This guide explains what that socket needs to do, what your options are if the garage has no power, how much electricity the door actually uses, and what happens when the power goes off.
The Short Answer: A Standard 13-Amp Socket
The motor on a Rollrite door runs from an ordinary domestic socket, the same type you would plug a kettle or a lawnmower into. The motor sits at the top of the door, inside the compact top box that houses the curtain when it rolls up, so the socket needs to be inside the garage and close enough to the top corner of the opening for the motor cable to reach.
Because the requirement is a plug and a socket rather than hard wiring, most garages that already have power need no electrical work at all before a roller garage door installation. We confirm the exact socket position during the free survey, so there are no surprises on the day.
| Question | Short answer |
|---|---|
| What supply does the door need? | A standard 13-amp mains socket inside the garage |
| Does it need a dedicated circuit? | Not normally; an electrician can confirm on older wiring |
| My garage has no power | A qualified electrician fits a socket before installation day |
| What about power cuts? | A manual override opens and closes the door by hand |
| What powers the remotes? | Standard replaceable batteries; two remotes supplied |
What If Your Garage Has No Power?
Plenty of garages, particularly detached ones, have no electrical supply at all. That does not rule out an electric door. It simply adds one step to the process.
A qualified electrician needs to fit a socket inside the garage before installation day. Rollrite do not carry out this wiring ourselves, but we will tell you exactly where the socket should go when we visit for the free survey, so your electrician has a precise brief rather than a guess.
How big a job that is depends on the garage. Where a supply already runs to the building, adding a socket is usually straightforward. A detached garage with no supply at all is a bigger piece of work, because power has to be brought over from the house. Either way, get the electrical work completed first. Once the socket is live, the garage door installation itself goes ahead exactly as it would in any other garage, and most are finished within half a day.
We survey garages of every age and condition across the region, from roller garage doors in Chelmsford to installations in Colchester, so no power supply question ever catches us out.
Not sure whether your garage's supply is up to the job? A free survey settles it in one visit, with a fixed written quote and no obligation.
Book a Free SurveyHow Much Electricity Does a Roller Door Use?
Very little in practice. The motor only draws meaningful power while the door is actually moving, and a full open or close cycle takes seconds rather than minutes. For the rest of the day the system sits in standby, using a small fraction of that.
Think about how the door is used: a handful of cycles a day for most households, each lasting a few seconds. Set against appliances that run for hours at a time, such as a fridge or a washing machine, a roller door barely registers on the bill. We deliberately avoid quoting exact wattage figures here because they vary with the motor and the size of the door, but modest is the honest summary.
What Happens in a Power Cut?
Every Rollrite door includes a manual override as standard, precisely for this situation. If the electricity goes off, the override lets you open and close the door by hand from inside the garage, so you can still get the car out and secure the door behind you.
Using it is straightforward, and we walk you through it at handover so the first time you need it is not the first time you have seen it. It is worth trying once shortly after installation, the same way you would test a smoke alarm, so you know exactly where everything is.
One practical point: the standard override is operated from inside the garage. If the roller door is the only way into your garage, mention that at the survey and we will talk through the right arrangement for your setup before anything is ordered.
Remote Controls and Batteries
Every door comes with two remote controls as standard. They run on ordinary replaceable batteries, so keeping them going is no more complicated than looking after a car key fob.
A flat remote battery does not affect the door itself, which is powered from the mains socket. If a handset stops responding, the battery is nearly always the culprit, so swap it before assuming a fault. And because two remotes are supplied, a flat battery in one never locks you out of the other.
If a remote still misbehaves after a fresh battery, or the motor is not responding as it should, our maintenance and repair team can check remotes, batteries and the motor itself.
What the Safety Edge Does
The bottom of the door carries a safety edge, fitted as standard on every Rollrite installation. If the door meets an obstruction while closing (a bin, a bumper, a foot), the edge detects it and stops the door, then moves it back away from the obstacle.
The safety edge runs off the same system as the motor, so it needs no separate wiring and no extra sockets. It is tested as part of the safety checks we run before handing the door over, along with the automatic locking, the remotes and the manual override.