Hi, I am trying to find the number for
Hill House Hammond, 18 Church Plain, Great Yarmouth, NR30 1NF,

Possibly now under "Towergate risk Solutions",

0870 9096939

(01493 856731 and 01493 843674 are not correct)

Little known fact but as Smasher said, they were sold on to Towergate Underwriting Ltd in June 2004.
All policies taken out upto that date (going on till June 2005) are being covered by the skeleton staff in the Bristol office on , so if the problem is concerning an existing policy, you will need to call them.

New business will be through the Towergate intermediaries, of which the office in Gt. Yarmouth is now one broker -

(John Critoph & Co) -

However, the you mention is theirs & works OK

They are also at 22 Church Plain on 01493 858398, Fax: 01493 857626
and at 78 High Street, Gorleston, Great Yarmouth on 01493 661294

Hope that's enough to be going on with ! 

I explained that HHH is defunct & no longer exists !

That number was John Critoph & Co, who were brokers for HHH and were taken over by Towergate.

The only number I confirmed for HHH is the 0800 0923322. I did get replies on 01493 856731 & 01493 843674 saying they were HHH, which divert to the Bristol office during working hours.  

The actual number is: 01493 856556

Some of the policies have been moved to other companies:
the following numbers did not help!

HHH National Call centre Bristol: 08000923322
Business folgate (Bournemouth): 08000150966
Towergate folgate@ 01708 777710
HHH Bristol centre: 01179051020