Overflowing Tank Repair in Sussex
Water dripping or pouring from a pipe high on the outside wall, or a noise in the loft that will not stop? A tank valve has failed. We isolate it, replace the valve and check the tank is safe.
- 30 minute call back, day or night
- Same-day fix wherever parts allow
- Fully insured, DBS-checked team
- One accountable team, no subcontractors
- Debit and credit cards accepted





Overflow running or tank leaking? Here’s how we fix it.
We find which tank or cistern is overflowing, isolate it, then replace the float valve, washer or overflow that has failed. We also check the tank, its supports and the ceiling below, because a full loft tank is a heavy load.
- Float valves and washers replaced
- Overflow pipes cleared, refitted and re-run
- Feed and expansion tanks repaired or replaced
- Tank lids, insulation and supports put right
- Toilet cistern overflows fixed
Loft tanks in Sussex homes
Plenty of Sussex homes still have a cold water tank in the loft. They are common in Victorian and Edwardian terraces, inter-war semis and village houses with a hot water cylinder. Many also have a smaller feed and expansion tank for the heating. Both have a float valve that shuts off the supply when the tank is full.
Hard water is hard on float valves. Scale builds up on the arm and the washer, the valve stops shutting off fully, and the tank fills until the overflow carries the excess outside. That pipe dripping onto the path is often the first sign.
If the overflow pipe is blocked, has been cut short, or was never fitted properly, the water has nowhere to go but the ceiling. That is when a slow fault becomes an emergency. Turn the water off at the stopcock and stay out from under any bulging ceiling.
In homes with a loft conversion, the tank was often moved into the eaves or a cupboard, where it is hard to reach and easy to forget. Newer homes with a combi boiler usually have no loft tank at all, so there the overflow is more likely coming from a toilet cistern.
Here’s what happens when you call
- 1You call us
Tell us what’s happened. We’ll work out whether you need us now or first thing, and talk you through making it safe in the meantime.
- 2We come to you
You get a named engineer and a realistic arrival window, a call when they’re on the way, and we turn up inside the window we gave you.
- 3We fix it
We repair the fault, tidy up, and tell you plainly what went wrong and what it costs to put right for good.
Call now, or get a call back in 30 minutes.
Every minute counts. Our engineers are on call across Sussex 24 hours a day.
Don’t just take our word for it
“Fixed leaking shower, was on times and very reliable. Great communication!”

“Professional company, reasonable price, nice tidy workmanship would happily recommend.”

“OGB were brilliant from start to finish. Excellent communicators, great attention to detail, tidy on site and nice to have around. Would recommend and will use again.”

Overflowing tank anywhere in Sussex? We can get to you.
From Chichester and Worthing to Lewes, Seaford and Eastbourne, and inland to Crawley, Horsham and Uckfield, our engineers cover East and West Sussex from our base in Hove. Call us and we will be honest about when we can get there.
- Brighton
- Hove
- Worthing
- Chichester
- Lewes
- Seaford
- Eastbourne
- Crawley
- Horsham
- Uckfield
Overflowing tank? Common questions
Need it fixed now?
Call us, or request an urgent call back.
Lines answered 24/7 by the team who will attend, not a call centre.