Hi Jacky. We've always found North London Locksmiths on Green Lanes to be good - https://www.north-london-locksmiths.com/
Yes I used them recently and would recommend
Ditto me -- good service last week fitting locks.
As an installer of security products, we always recommend Martin Slane of IKS Locksmiths 07947426981 - a Master Locksmith.
I always use North London Locksmiths, on Green Lanes.