After you do regain access to your garage consider

https://rayshobby.net/wordpress/introducing-opengarage/

I have had mine for at least a year now and love it. Not very expensive either.

kiwijunglist: I have a nodemcu esp8266 with a relay and reed switch to hook up to my home automation hub (hass io) bit hasn't got around to installing it yet.

hate it when that sort of thing happens. 

OP do not forget your responsibility to post the answer when you solve this. A lot of people will want to know.

gzt: Garage door specialist same brand will open it. No glass to clean up.

kiwijunglist: I think i can buy this.

https://www.garagedoorremotes.co.nz/product/windsor-replacement-garage-door-remote.html

Which is also on aliexpress.

FOR Doormate remote control 303MHZ garage door remote
http://s.aliexpress.com/NVz6nQjM?fromSns=Copy to Clipboard

How long are you prepared to wait for it to me delivered from China?

how are you going to program it?

with a brick?

kiwijunglist:

We can't find our spare remote and this one is locked inside the roller door garage. The only way in and out of the garage is through the automatic door. I think these openers have dip switches inside to select the code, so I presume that if I can borrow a remote from someone then I can get into my garage without breaking a window.

Unless someone has some other ideas.

aht that kind of brute force eh