Repair intercom

Geoff requested 3 quotes from Security Alarm Installers in Guildford North

I have a Commax Audio Intercom.
The audio function is in working order.
The automatic door opening function is not working.

Replace defective Golmar Security Intercom inside unit
Visitor can't ring bell on my units securiy intercom but I can open the door...

Intercom to be installed for 8 set of units
Looking for video intercom (preferably colour)

FLY SCREENS AND WINDOWS GRILLS. 4 WINDOWS & TWO SLIDING DOOR GRILLS.
FLY SCREENS AND WINDOWS GRILLS. 4 WINDOWS & TWO SLIDING DOOR GRILLS. PLUS...

SUPPLY & INSTALL 5 ALUMINIUM SECURITY DOORS.
SUPPLY & INSTALL 5 ALUMINIUM SECURITY DOORS.