I suggest you get the security company who monitors the system to repair it. They can tell you whether the electricians caused the damage. If so, send the bill to the electricians. In general, they sh ... read more
The materials are just 30% of the cost. They are labor intensive and if you are fairly handy you can save a bundle of money doing it yourself. However, this is not a task for the average DYI. If yo ... read more