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Roller garage doors fail in winter for dull reasons: grit in the guides, a bottom seal sitting in a puddle, remote batteries on their last legs, a motor asked to push through ice. This checklist takes about 30 minutes on a dry autumn afternoon and covers an electric roller door of any make.
You will need a soft brush, warm soapy water, a cloth, a silicone based spray, fresh remote batteries and a step ladder. Unplug the door or switch it off at the isolator before you touch the guides.
1. Clear and clean the guides
The side guides are the channels the curtain runs in, and over a summer they collect dust, cobwebs, leaves and grit. Brush them out from top to bottom, then wipe the inside faces with the damp cloth. Look for anything lodged in the channel, dents from a bike handlebar or a wheelie bin, and screws that have worked loose. Anything that makes the curtain rub makes the motor work harder, which is how most winter breakdowns start.
2. Wash the curtain and check the slats
Wash the outside face of the curtain with the soapy water and rinse it. While it is clean, run your eye along each slat for dents, cracks or end caps that have shifted. One damaged slat can usually be replaced on its own, and our slat replacement guide explains how to tell which slat you have.
3. Check the bottom seal and the brush strips
The rubber seal on the bottom rail is what stops wind, rain and leaves coming under the door, and it is also the part that freezes to the floor. Lift the door, check the seal is intact along its full length and sitting evenly, and clear the floor line underneath of grit and moss so water does not pool there. Check the brush strips at the sides and the top box for the same wear. A tired seal is cheap to replace and makes more difference to a cold garage than almost anything else.
4. Lubricate lightly, in the right places only
A light coat of silicone based spray on the inside faces of the guides is all a roller door needs. Do not use grease or oil in the guides, because it holds grit and the door gets noisier, not quieter. Do not spray the face of the curtain, the bottom seal or anything near the motor. If the door squeaks from the top box, that is a job for a service rather than a can of spray.
5. Test the safety edge and the stopping points
Power the door back up. Close it with a cardboard box or a length of timber standing under the curtain: the safety edge should stop the door and reverse it the moment it touches. Then run the door fully up and fully down and watch where it stops. If the curtain now stops short of the floor, or runs on and bunches, the travel limits need resetting. Our post on why a roller garage door will not close covers the common causes in order.
6. Change the remote batteries and check the controls
Remote fobs always die on a wet evening in December. Change the batteries now, test every fob from the end of the drive, and test the wall mounted key switch too. If a fob has stopped responding altogether, our guide to programming remote fobs covers Teleco, Eurokit and Genesis handsets.
7. Rehearse the manual override
The moment to learn where the winding handle lives is not a dark, wet evening in a power cut. Every TWF door includes a manual override that lets you open or close the curtain from inside the garage; find the handle, wind the door up a little and back down, and put the handle where you will remember it. If the roller door is the only way into your garage, fit an external manual override so you can do the same from outside. Our power cut guide covers both methods.
8. Deal with draughts and condensation
If the garage is attached to the house, a cold garage is a cold house. An insulated roller curtain with the side guides and bottom seal in good order is the main defence, and our garage door insulation post explains what to expect. Condensation is a different problem: a garage sealed tight with no ventilation will stream in cold weather. If you see wet slats on the inside, read our guide to garage condensation and damp before you add more sealing.
9. Storms, dark evenings and security
Before a named storm, close the door and leave it closed. Check the guide fixings are tight, and clear anything from the drive that the wind could throw at the curtain. The evenings are drawing in, and a closed electric roller door is held by its motor; an Autolock adds a mechanical lock that engages on every close. The TWF55 Autolock fits the 55mm doors and the TWF77 Autolock fits the Classic 77. A light over the door on a sensor is the other cheap deterrent.
10. If the door freezes or sticks
Do not press the button again and again. If the bottom seal has frozen to the floor, free it with lukewarm water or a plastic scraper, never boiling water, and clear ice out of the guides before you try the motor. If the door sticks when nothing is frozen, something is in the guide or the curtain has shifted; find it rather than pushing through it. A motor made to labour against an obstruction will not last the winter.
When to book a service
If after all of this the door is still slow, noisy, uneven or stopping short, stop using it and have it looked at. We provide garage door servicing across Norfolk and Suffolk for roller and sectional doors, and we will tell you plainly whether a repair or a replacement is better value. Anywhere else in the country, a local engineer can run the same checks.
FAQs
Can a roller garage door freeze shut?
Yes. Water sitting along the bottom seal or in the guides can freeze overnight and hold the curtain down. Never force the motor against it. Free the seal with lukewarm water or a plastic scraper, clear the ice from the guides, then try again. Boiling water can crack seals and damage the finish.
Should I lubricate my roller garage door before winter?
Lightly, and only in the right places. A silicone based spray on the inside faces of the guides is enough. Do not use grease or oil in the guides, because it collects grit and makes the door noisier, and never spray the face of the curtain or the bottom seal.
Why is my roller garage door slower or noisier in cold weather?
Cold stiffens old lubricant, rubber seals and brush strips, and any grit in the guides is felt more when everything is tight. Cleaning the guides and a light silicone spray usually brings the speed back. If the door is still slow or struggling after that, stop using it and have it checked, because a labouring motor is a motor wearing out.
What should I do if the power goes off during a storm?
Use the manual override to wind the curtain shut from inside, or the external override from outside if you have one fitted. Leave the door closed until the power is back and the wind has dropped. If you have never used the override, practise it on a calm day first.
Does an insulated roller garage door keep the garage warm in winter?
It keeps the garage noticeably less cold and, more importantly, stops the rooms above and beside an attached garage losing heat through it. All TWF doors use insulated aluminium slats with a foam core, and the side guides and bottom seal limit draughts. Our garage door insulation post covers what to expect.
How often should a roller garage door be serviced?
Once a year is a sensible habit, with autumn the natural time to do it. Between services, the checks in this post take about half an hour. If the door becomes noisy, slow or uneven at any point, book a service sooner rather than waiting for it to stop.
Key takeaways
- Clean guides and a sound bottom seal prevent most winter faults; grit and standing water cause them.
- Lubricate lightly with silicone spray in the guides only; no grease, nothing on the curtain.
- Test the safety edge, the stops, the remotes and the manual override before the clocks go back.
- Never force a frozen or sticking door with the motor.
Conclusion
A roller garage door asks for very little, but it asks for it in autumn. Half an hour with a brush, a cloth and a can of silicone spray, plus a test of the override and the remotes, is the difference between a door that works all winter and one that gives up on the coldest morning. If yours is past the point of a checklist, our servicing team can help in Norfolk and Suffolk, and a new insulated door can be priced in the Garage Door Builder in a minute.
Written by the TWF team, who have manufactured and fitted roller garage doors from Norfolk for over 25 years. Last updated: 23 October 2026.
