Email: customerservice@tandem.co.uk
Call: 0292 010 3044
To make a payment visit, head to the online payment portal or call 0203 540 0641
Email: mortgages@tandem.co.uk
Call: 0292 010 3044
Email: mortgagesupport@tandem.co.uk
Call: 029 2009 8211
Open times
Mon - Fri: 9.00 -17.00
(excluding bank holidays)