Leaking Pond Repair

At Sasaquatics, we specialise in diagnosing repairing and replacing leaking ponds across Devon, Cornwall and the South West. Whether you have a small wildlife pond, a natural swimming pond, or a large ornamental water feature, we can help restore it to full health.

Why Is My Pond Leaking?

Pond leaks can develop for many reasons. The most common causes we see in Devon and Cornwall include:

• Poor pond liner installation – liners stretched too tight or unsupported can split under pressure.
• Punctured liners – from falling debris, animal damage, or sharp stones beneath the liner.
• Cracked concrete ponds or waterfalls – common in older ponds where concrete perishes with age.
• Leaking pond pipework – brittle hoses and fittings can fail over time.
• Plant growth issues – marginal plants taking root outside the pond can create escape routes for water.
• Evaporation – especially during hot South West summers, though usually less than 2–3 cm a week.

Pond Liner Repairs in Devon & Cornwall

If your pond liner has a visible puncture, it can often be repaired with specialist pond sealants and patch kits. In cases where liners are badly aged or installed incorrectly, full replacement may be the most cost-effective option.

We provide:

• Pond liner repair services
• Full pond liner replacement
• Protective underlay installation to reduce future leaks

Concrete Pond Repair & Sealing

Concrete ponds were popular before flexible liners, but cracks and corrosion are common over time. We can:

• Repair damaged concrete with new render
• Apply fibreglass or G4 polyurethane sealants for long-term waterproofing
• Advise on natural sealing methods (e.g. bentonite clay) for wildlife ponds in Devon and Cornwall

Natural Pond Sealing

For landowners and farmers looking for a more natural solution, clay (such as bentonite) can be used to line and seal large ponds. This is particularly relevant for wildlife ponds, farm reservoirs, and rewilding projects across Devon and Cornwall.

Pond Pipework & Waterfall Repairs

• Leaking pipes and fittings – replaced with heavy-duty pond hose or solid PVC for longer lifespan.
• Waterfall leaks – cracked concrete or waste build-up diverting water flow can be resolved through resealing and regular maintenance.

Local Pond Repair Service

If your pond in Devon or Cornwall is losing water, our experienced team can help with:

• Leak detection and repair
• Pond refurbishment and relining
• Marginal plant management
• Ongoing maintenance advice

We work with private homeowners, farmers, estates, and community groups across the South West.