Police emergency 999 non urgent 101 or https://www.essex.police.uk/do-it-online/report-a-crime/
If you have a power cut phone Powergen on 105 or
https://www.ukpowernetworks.co.uk/power-cut/report-power-cut
For a water leak phone Affinity Water 0345 357 2407
If you smell Gas phone 0800 111 999.