F.E.S 24/7 Ltd are a family run drainage company with over 30 years’ experience in maintaining and servicing drainage systems. FES 24/7 provides all the septic tank emptying Norfolk could need, with a team on call around the clock. If you need a septic tank emptying in Norfolk then you’ve come to the right place. With many years of experience working in this field, FES 24/7 are the go-to professionals when it comes to the safe and fast removal of up to 5,000 gallons of liquid waste.