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Dam liner prices in Kenya are quoted per square metre, and the figure on your quote depends on four things: the thickness you choose, the area you are lining, the resin behind the sheet, and how much of the job the supplier takes on. This page puts the current numbers in one place, then explains what moves them.
The prices below are what we charge from our Nakuru yard. Beside each one sits the market band we see across other dam liner sellers, so you can tell a fair quote from a hopeful one. Also, the page covers what a square-metre price leaves out, because most budget surprises come from those items rather than from the sheet.
- The current square-metre price at each of the three gauges
- The seven things that move the figure
- What the sheet price does not include
- A worked costing for a typical farm dam
What Drives Dam Liner Prices in Kenya
Seven things move the number, and only the first one appears on a price list. The rest decide how far the final invoice travels from the quote.
- Thickness. A sheet is sold by the weight of polymer in it. Doubling the gauge roughly doubles the material cost.
- Area. Everything is priced per square metre. A larger dam costs more in total, although it usually wastes less per metre, because fixed roll widths fit a big rectangle better.
- Resin. Virgin polymer holds its strength at the fold. Regrind is cheaper and softens sooner, so a suspiciously low quote is often a regrind sheet.
- Installation. Welding, the anchor trench and a seam test are labour. Therefore they are quoted separately on most jobs.
- Transport. Because rolls are heavy and awkward, distance, road access and offloading all add to the bill.
- Ground. Stony sites need a geotextile underlay, which is a second material and a second laying cost.
- The shilling. Resin is imported and priced in dollars. Therefore, a quote issued three months ago is not a quote today.
For most farm jobs, thickness and area move dam liner prices in Kenya far more than the other five. Consequently, those are the two figures worth pinning down first.
Dam Liner Prices in Kenya per Square Metre
The table gives our selling price for each gauge, with the market band we see across Kenyan suppliers for comparison. Prices are per square metre of material only.
| Thickness | Our price per m² | Market band | Where it fits | Expected life |
|---|---|---|---|---|
| 0.5 mm (500 microns) | KSh 240 | 240 to 260 | Garden ponds, fish ponds, fine soil | 8 to 12 years |
| 0.75 mm (750 microns) | KSh 340 | 340 to 360 | Farm dams, water reservoirs | 15 to 20 years |
| 1.0 mm (1,000 microns) | KSh 450 | 430 to 450 | Large reservoirs, stony ground | 20 years and up |
Those figures exclude welding, transport, excavation and any underlay. Consequently, a quote that stops at the material line is a quote for a roll, not for a watertight dam. Dam liner prices in Kenya also drift with the shilling, because the resin behind every sheet is imported.
0.5 mm Dam Liner Price in Kenya
The 0.5 mm sheet is the entry point, at KSh 240 per square metre. It suits kitchen gardens, small fish ponds and any excavation on smooth clay where the ground will not puncture it. For that reason it is the gauge most smallholders buy.
It is also the gauge that fails soonest on rough ground. If your site has stones, the saving on the sheet is smaller than the cost of replacing it. Most of the dam liner prices in Kenya quoted for a small pond sit at this end of the range. Our guide to the 0.5 mm HDPE dam liner sets out where it is genuinely enough.
0.75 mm Dam Liner Price in Kenya
At KSh 340 per square metre, the 0.75 mm sheet is the middle of the range, and it is where most farm dams land. It carries a dam through a dry season without the weight and cost of the heaviest roll. In practice, it survives the light stone and root pressure that punctures the 0.5 mm.
That also makes it the gauge behind most dam liner prices in Kenya that farmers compare. The 0.75 mm HDPE dam liner guide covers the applications it was built for.
1.0 mm Dam Liner Price in Kenya
The 1.0 mm sheet sells at KSh 450 per square metre. It is the right choice for large reservoirs, commercial dams and stony excavations, where the weight of water and the sharpness of the ground both punish a thin sheet. It also lasts longest, so the cost per year of service can be lower than the cheap roll.
Then remember the underlay. A heavy sheet laid straight onto rock still punctures, and the repair costs more than the geotextile would have. On stony commercial sites, dam liner prices in Kenya are set by this gauge more often than by the thin ones. Our page on the 1.0 mm HDPE dam liner covers that pairing.
What the Per-Metre Price Leaves Out
Additionally, four costs sit outside the per-metre figure, and each one changes the total:
- Welding. Panels are joined on site, usually by thermal weld. The crew and the seam test are charged as labour.
- The anchor trench. The liner is buried at the rim to stop it slipping. The dam liner anchor trench page explains how deep it runs and what goes back in.
- Geotextile. A protective layer under the sheet on stony ground.
- Excavation. Shaping the dam is a separate contract from lining it.
Therefore, compare quotes on the installed total, not on the sheet. The five questions worth asking every seller are set out in our guide to dam liner suppliers in Kenya.
Dam Liner Prices in Kenya by Dam Size
A price per square metre means nothing until you know your square metres. For example, take a dam measuring 20 metres by 15 metres and 3 metres deep. Add twice the depth for the side slopes, then add a metre of trim at each edge. The sheet you need is 28 metres by 23 metres, or 644 square metres.
At KSh 340 per square metre, that is about KSh 219,000 in material. At KSh 450 it is about KSh 290,000. The gap is the thickness decision, and the ground decides it rather than the budget. Our dam liner sizing formula turns any dam profile into an order quantity.
Dam Liner Prices in Kenya by Ground Condition
| Ground | Thickness | Best for |
|---|---|---|
| Smooth clay | 0.5 mm | Fish ponds, kitchen gardens, small pans |
| Murram | 0.75 mm | Farm dams, livestock water, irrigation reservoirs |
| Rock or hard murram | 1.0 mm plus underlay | Commercial dams, county water projects |
| Old dam with a repaired floor | 1.0 mm plus underlay | Rehabilitation of an existing reservoir |
However, soil is only half the decision. The volume of water and the expected service life matter too, and so does the size of the crew you can get to the site.
Where Dam Liner Quotes Go Wrong
- Buying the heaviest sheet for a smooth site, then skipping the underlay on a rough one.
- Accepting a per-roll price instead of a per-square-metre price, which hides the offcut.
- Paying for material before the welding method and seam test are written down.
- Forgetting transport, then discovering the lorry cannot reach the dam.
Each of these is avoidable with one question at quotation stage. Finally, keep every quote in writing, because the cheap one rarely stays cheap once the extras are added.
Frequently Asked Questions on Dam Liner Prices in Kenya
What does a square metre of liner cost? KSh 240 for 0.5 mm, KSh 340 for 0.75 mm and KSh 450 for 1.0 mm, per square metre of material. Across other Kenyan sellers the same three gauges land between KSh 240 and 450.
Is the price quoted per square metre or per roll? Per square metre, for the material. Rolls have a fixed width, so the panel layout decides how much of a roll you actually pay for. Ask for the layout before you approve the order.
Does the price include installation? No. Welding, the anchor trench, the seam test and transport are quoted separately. Ask for the installed total, not the sheet price.
Why is one supplier much cheaper than another? Usually the resin. A regrind sheet costs less to make and goes soft at the crease, and the crease is the first place a liner tears. Ask for the material data sheet.
How many years will the sheet serve? Expect 8 to 12 years from a 0.5 mm sheet, 15 to 20 from a 0.75 mm, and 20 or more from a 1.0 mm. The quality of the welding moves you within that range.
Can I fit the sheet without a contractor? A small pond can be done by hand. A larger reservoir cannot, because the seams decide whether it holds, and a hand-laid seam is the common failure. Dam liner prices in Kenya usually exclude that crew, so ask for both figures.
How to Get a Dam Liner Price in Kenya
First, send the dam’s length, width and depth, plus a note on the ground. We will come back with the gauge, the panel layout and the square metres, then quote material and fitting as two lines. Call +254 728 163329, or open the geomembrane dam liner page to see the current stock. For the full range, the shop keeps dam liners for sale in Kenya in one place.
Siting, design and construction are all covered in the FAO manual on small earth dams, which is free to read.
One last point. Dam liner prices in Kenya are a starting number, not a total. Judge every quote on the installed cost, the written seam test and the repair route, and the cheapest sheet stops looking like the cheapest dam.