intercom installation , door phone installation, door entry phone installation, door intercom system , London, door entry system
Residential Entry Door Phone / Intercom
Installation and replacement


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Intercom repair

Door Entry Phone Intercom Bellini

 

 Type :              BSTL   
No of flats :      1 to 10
Warranty :        1 year   
Cost                 [CLICK HERE FOR DETAILS]

Notes: 
It is probably most common system on the market.
Manufactured in UK by BELL company.
Very sturdy door panel requires at least some tool to be damaged.

Reliability:  75%  (see note at the bottom of this page)

Weaknesses: System produces very quiet humm when connected to electric lock release.
                      It does not affect speech however. New version of sleek handsets seem to be
                      less reliable than old ugly ones. Most of  problems with this systems are caused
                      by handsets.
 
Type :               VIDEX 
No of flats :       1 to 10
Warranty :        2 years
Cost                  [CLICK HERE FOR DETAILS]

Notes: 
Mixture of stainless steel plating and galvanised steel frame  gives it very modern
and quality look. VIDEX is  company with long history on the market and excellent
reliability record that can only be contested by "BPT".
Very well engineered in terms of protection against elements.

Lots of add-ons (like keypads, key fob modules) are available.

Reliability:  97%    (see note at the bottom of this page)

Weaknesses: System is very modular meaning that if for example there is problem with push button fails whole module has to be replaced what bumps up cost of repair.

 

 Type :               VIDEX  GSM  (Wireless)
No of flats :       1 to 10
Warranty :        2 years
Cost                  [CLICK HERE FOR DETAILS]

Notes: 
This is wireless version of VIDEX shown above.
GSM means that it uses mobile phone technology to direct calls to landline or mobile numbers.
Due to their high cost usually wired system is more affordable option however there are situations
where those come very handy.

Click link above for more information.

Reliability:  As it is relatively new technology as well as those systems are rarely seen on properties (mainly due to their cost) I can't offer any honest opinion on their reliability.
Generally wired systems last longer than wireless.
Saying that VIDEX is manufacturer that rarely failed me in my over 20 years career as installer.

   

Note about reliability rating :  It is percentage of systems that required repair within five years form date of installation.
                                                  Please note that these are my own calculations based on systems that I fitted over last 14 years.

Example:  75% means that 25 for every 100  systems required repair within 5 years from the date of installation.
                 97% means that 5  for every 100 systems required repair within 5 years from the date of installation.
                 100% means that so far there has been no recalls for this systems.
 

                               

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