Attenuation and geo-lining specialists
Attenuation tanks, liners and gas membranes, supplied and installed UK-wide.
We supply and install attenuation tanks, soakaways, pond and lagoon liners and gas membranes for developers and groundworkers across the UK. All seams are welded, and every job is handed over with QA documentation.
25+
Years
Years in the ground
970m³
Largest tank
Largest single tank
100%
Jobs QA'd
Jobs QA'd and documented
UK-wide
Nationwide
From the Midlands
What we install
What we install
Attenuation Tanks
Geocellular attenuation tanks, supplied and installed
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Soakaway Tanks
Crate soakaways that infiltrate, installed to the design
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Pond Lining
HDPE, LLDPE, EPDM, PP and GCL lining for ponds, lakes and reservoirs
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GCL Pond Lining
Geosynthetic clay liners with a self-sealing bentonite core
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Slurry Lagoons
Lined slurry and digestate lagoons for farms and AD plants
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Gas & Hydrocarbon Membranes
Radon, methane, CO₂ and hydrocarbon protection, installed and verifiable
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Galvanised Steel Tanks
Modular lined steel tanks for rapid open storage
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Car Park Lining
Impermeable lining for permeable car parks and SuDS pavements
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Recent work
Recent projects
1 / 6
From the trade
What our clients say
Liner calculator
Work out how much liner you need
Liner gets ordered short because people measure the base and forget the slope faces and the anchor trench. Give this three dimensions and a batter — it does the geometry properly, prices it, and puts it in your basket.
- Slope-aware
- Counts the batter face, not the vertical drop
- Anchor included
- Trench and trimming allowance on every edge
- Fleece too
- Both faces worked out and priced alongside
Give it three dimensions and a batter, and it works out and prices the liner and fleece, slope faces and anchor trench included.
Open calculatorWhat are you lining?
Crate block, fully encapsulated — base, four walls and a top.
Base dimensions & depth
Sheet overlap
Waste allowance
Corners fold away membrane, and deeper tanks lose more. We allow 25% on our own tank jobs.
Layers
Add a second geotextile layer if the membrane needs protecting on both faces.
Material
Reinforced HDPE. Made in one piece to your finished size.
Liner to order
732m²
Total ex VAT
£3,872.28
£4,646.74 inc VAT
- Before waste
- 585.6m² per layer
- Geotextile
- 732m² (1 layer)
- Or as rolls
- 7 × 2.5m × 50m roll, HDPE 0.6mm
- Delivery
- + £225.00 ex VAT, once per order
Show the working
- Base 20 × 12 = 240m²
- Walls 2 × (20 + 12) × 1.5 = 96m²
- Top 20 × 12 = 240m²
- Laps 2 × (20 + 12) × 0.15m = 9.6m²
- Total = 585.6m²
- + 25% waste allowance = 732m² per layer
- Membrane: 1 × 732 = 732m²
- Geotextile: 1 × 732 = 732m²
From the workshop
Guides and technical notes
Tell us about your project
Quote back within one working day