PLINTH is a raised pond with integrated filtration, pump, and fountain — a complete, ready-to-place system starting from £2,295. This guide breaks down the real costs of a modern garden pond in the UK.
MODERN GARDEN POND COSTS (UK)
Garden pond pricing in the UK varies enormously depending on type, size, materials, and whether you do the work yourself or hire professionals. This guide covers realistic costs across the main options available in 2026.
DIY LINER POND (IN-GROUND)
The most affordable option, but the most labour-intensive.
Materials typically include a flexible liner, underlay, pump, filter, UV clarifier, edging, and planting. For a modest pond (approximately 1.5m x 1m), expect to spend roughly £400–£800 on materials alone.
However, this doesn't include excavation costs (hiring a mini digger or labour), soil disposal (skip hire), or the time involved. Realistically, a complete DIY liner pond with all equipment and finishing lands between £800 and £2,000, depending on size and specification.
The ongoing cost of replacing liners, pumps, and UV bulbs should also be considered; these are typically needed every 3–10 years, depending on quality.
PREFORMED RIGID POND (IN-GROUND)
A step up from a liner pond in terms of ease, but still requires excavation.
A preformed rigid pond shell costs between £100 and £500, depending on size. However, installation, backfilling, levelling, and finishing all add to the total. A pump, filter, and UV clarifier are still purchased separately.
Total installed cost for a preformed pond with filtration: approximately £600–£1,500.
RAISED POND KIT (TIMBER OR COMPOSITE)
Timber raised pond kits range from approximately £200 for a basic small kit to £1,500–£2,300 for large, thick-walled versions. These typically include the frame and a liner, but not filtration, pumps, lighting, or any integrated system.
Adding a standalone pump, filter, UV clarifier, and fountain to a timber kit adds approximately £200–£600 depending on quality.
Timber kits require assembly, and the timber will weather and may need treatment over time. Liners may need replacing after several years.
Total cost for a large timber raised pond with separate filtration: approximately £1,000–£2,800.
RAISED POND WITH INTEGRATED FILTRATION
A raised pond designed as a complete, self-contained system, with built-in filtration, circulation, fountain, and lighting, represents the premium end of the above-ground market.
These systems require no assembly, no separate equipment, and no excavation. They arrive as a single object, ready to position and fill.
Pricing typically ranges from approximately £1,500 to £3,500 depending on size, material, and specification.
The advantage is simplicity: no separate purchases, no compatibility issues between components, and significantly lower ongoing maintenance costs because the system is designed to work together from the outset.
PROFESSIONALLY DESIGNED IN-GROUND POND
At the top end, a bespoke in-ground pond designed and installed by a specialist can cost anywhere from £5,000 to £20,000 or more, depending on size, materials, planting, lighting, and the complexity of the design.
These projects typically involve groundwork, landscaping, electrical work, plumbing, and ongoing maintenance agreements. They are best suited to large gardens with significant budgets and a willingness to commit to a major installation project.
ONGOING COSTS
Regardless of type, all ponds have some ongoing costs:
Electricity for pumps and filters: approximately £30–£80 per year for most systems.
Replacement UV bulbs: approximately £15–£30 per year.
Water treatment or testing kits: approximately £10–£30 per year.
Fish food (if applicable): approximately £20–£50 per year.
Liner replacement (liner ponds only): approximately £50–£200 every 5–10 years.
WHAT SHOULD YOU BUDGET?
For a practical, good-quality garden pond with filtration that will last for years with minimal maintenance, a realistic budget in 2026 is between £1,500 and £3,500. Below that, you're likely compromising on build quality, filtration, or both. Above that, you're moving into bespoke landscaping territory.
The most important consideration isn't the upfront cost. it's the total cost of ownership over five to ten years, including replacements, maintenance, and your own time.
What's included in every PLINTH?
Integrated filtration, pump, fountain, and a hand-finished fibreglass shell. No separate filter, no liner, no plumbing. The only extras are the plants, fish, or pebbles you choose to add.
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Frequently Asked Questions
Raised ponds range from around £100 for a basic timber kit without filtration to over £3,000 for a premium fibreglass unit with integrated filtration, pump, and fountain. PLINTH raised ponds start from £2,295 for the LINEAR 120 and include everything needed — no additional pump, filter, or liner required.
Every PLINTH includes integrated biological and mechanical filtration, a pump, a fountain, and a hand-finished fibreglass shell. You do not need to buy a separate filter, pump, liner, or plumbing. The only additional costs are any plants, fish, or accessories you choose to add — typically £10–£150 depending on your chosen design.
A premium raised pond like PLINTH (£2,295–£3,495) compares favourably to a professionally installed in-ground pond, which typically costs £4,000–£10,000 or more, including excavation, lining, filtration, edging, and landscaping. A raised pond also avoids the cost of groundwork and can be installed without professional help.
Running costs are minimal. The pump and filtration system typically costs £30–£60 per year in electricity. Fish food costs approximately £20–£40 per year. Water top-ups during summer and occasional dechlorinator are the only other regular expenses.
Very few. A planted or fish setup may cost £20–£50 per year on replacement plants, fish food, and water treatment. The integrated filtration reduces maintenance significantly compared to traditional ponds with separate filter systems.
PLINTH is a premium, design-led product with integrated filtration and a hand-finished fibreglass construction by a UK manufacturer with over 30 years of experience. The price reflects the all-in-one system and architectural design quality. A bespoke landscaped pond of similar quality would typically cost significantly more.
Ready to choose yours?
The PLINTH Founding Collection is available now. Three sizes with integrated filtration, pump, and fountain. Free UK delivery.
Browse the Founding Collection →