There are no crematoriums within Runnymede borough. The nearest are:

South West Middlesex Crematorium

Hounslow Road, Hanworth, Feltham, Middlesex, TW13 5JH
0208 894 9001

Guildford Crematorium

New Pond Road, Godalming, Surrey, GU7 3DB
01483 444711

Randalls Park Crematorium

Randalls Road, Leatherhead, Surrey, KT22 0AG
01372 363181

North East Surrey Crematorium

Lower Morden Lane, Morden, Surrey, SM4 4NU
0208 337 4835

Woking Crematorium

Hermitage Road, St John's, Woking, Surrey, GU21 8TJ
01483 472197

The Government's website also has more information on death and bereavement.