Our local North West London electricians provide electrical services around the clock. We can provide free quotes and estimates for any of the following services. Pat Testing, 3 Phase, Fire Alarm Installation in North West London, Emergency Lighting, Trunking & Conduit Systems, Utility lighting, Cat II lighting, Lighting controls, Periodic electrical inspection in North West London, Heating controls, North West London Landlord Certificates, New Electrical Installations, Electric Heating, Power Factor Correction, Structured Wiring Systems, EPOS Systems, Telephone Systems, Nurse Call Systems, Access Control, Video/Voice Intercoms, North West London CCTV Systems, Intruder Alarm Systems and Lightning Protection.
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BT is responsible for the phone line system up until the master phone socket in the house. Beyond that, it is the homeowner who is responsible for the upkeep and maintenance. Since the phone line carries 50 Volts of DC current when idle (that jumps to 75 Volts of AC current when the phone rings), an electrician can work on repairs or extensions to the line within the house.