Pond repairs


Nothing makes the pond owner feel as sick as a leaking pond. The thought of finding the leak and finding temporary homes for prized fish strikes dread into hearts.

Is your pond actually leaking?

Often a pond that is is suffering from a consistently dropping water level isn’t actually leaking.

When identifying leaks we will first eliminate the simple things before tackling the pond itself:

  • Is the pond leak just evaporation?
  • Is it coming from the pipes, pumps or filters?
  • Fountains can often blow in the wind causing water loss
  • Do you have a waterfall or stream that is leaking?

Once we have ruled out these factors we need to look at the pond itself to locate the leak.

Find the leak

Finding any leaking pond is a tricky task. Painstakingly examining every inch of the pond to try and find it. Although sometimes the leak can be under a fold in the liner or in a place which makes a repair awkward.

There are 3 main types of pond found in gardens, and each requires a different approach to repair any leaks.

Pond with liner

Possibly the most common type of pond found is one with a flexible butyl or PVC liner. Although these ponds are the most common, they are also the most easily damaged. The damage can be caused by many factors, and it is common that they are damaged before the expected end of life of the liner.

Damage can occur from

  • Large birds preying on fish creating punctures with their beak
  • Rockery or edging stones falling into the pond
  • Sharp stones under the liner
  • Roots from large shrubs or trees pushing though in search of water
  • Sharp stones or other items in the pond being trodden into the liner during cleaning or maintenance

Repairing leaks is fairly straightforward, once you have found the leak, and the pond only needs to be drained to the level of the leak. This means that often we don’t have to find your fish temporary homes.

Preformed rigid ponds

Once commonplace these type of ponds were the big thing in garden ponds. They were moulded to their finished shape and size, from either fibreglass or thick polyethylene. Although these ponds are still out there in gardens, it’s not often new ones are installed now, with people usually opting for liners instead.

It’s not often that these need a pond repair. However if they do leak, the cause is usually down to either: A manufacturing flaw which has degraded over time. Or trees searching for water with their roots burrowing through the tough skin of the pond.

Moulded ponds can be repaired fairly easily without having to drain the pond fully. They take a little longer for the repair to cure than with a liner.

Concrete or brick built ponds

These are less common than liners, but were more popular than preformed ponds. Usually the solid built ponds are either old ponds or very large ponds.

This type of pond is constructed by casting the base as a concrete slab. Then building the outer walls, or casting them in concrete. Then rendering the inner face and bottom with a strong mortar and coating it with a waterproof resin skin.

The most common leaks found in these ponds are where the waterproof skin breaks down and the concrete becomes porous, leaking the water through into the ground.

Repairing a solid walled pond can be a painful experience as the leak is often lower down in the pond where faces join. Finding the leak itself is a tricky task, even more so than with liners or pre-formed ponds. Often the only way to fix the leak is to tank the inside of the pond again with resin or one of the new silicone based products on the market.

Let us undertake your pond repair

Rather than struggling to do this yourself, why not get us in to fix it for you. We will deep clean the area around the leak, before repairing the hole. Refilling the pond with safe water once complete.  For bigger repairs we will provide a temporary home for your fish and complete the work for you, taking the headache out of your pond repairs.

Contact us to find out more