30+ years experience
About Damtech
At Damtech, we deliver earth dam liners, steel water tanks and waterproofing systems for farms, mines and commercial properties across South Africa.
Damtech started with a simple focus: help South African landowners store water reliably and keep buildings dry. Today we install HDPE dam liners on farms and mines, build corrugated steel reservoirs, and apply bitumen waterproofing on roofs and foundations — always with an emphasis on workmanship you can inspect, not promises you cannot.
Who Are We?
We are your trusted experts in earth dam liners, waterproofing and steel water storage tank suppliers with over 30 years of experience in the industry. With a legacy rooted in excellence, we deliver innovative solutions that safeguard your investment and enhance its longevity.
Our Mission
To provide top-tier waterproofing and lining solutions that stand the test of time. We strive to exceed our clients' expectations by offering reliable, effective and tailored services — whether you need advanced earth dam liners for large-scale dams or expert waterproofing for roofs and foundations.
Three Decades of Lining and Waterproofing Experience
Our teams have lined irrigation dams in the Western Cape, built steel tanks for Mpumalanga citrus farms, and repaired torch-on roofs on Gauteng commercial stores. That range means we understand regional soils, rainfall patterns and the pressures load-shedding puts on borehole and pumping schedules — context that shapes how we specify liners and tank sizes.
How We Approach Every Project
We listen first: what water you need to store, how you use it, and what has failed before. Then we recommend materials and thicknesses that fit the site — not whatever is cheapest to freight. Installation crews prepare substrates properly, weld and anchor to spec, and leave you with maintenance guidance. After handover we are still a phone call away for inspections, patches and expansions.
What We Do
Earth Dam Liners
HDPE, PVC and bitumen torch-on lining for agricultural farm dams, mining ponds and irrigation storage nationwide.
Dam liners →Steel Water Tanks
Corrugated galvanised reservoirs from 11 kL to 500 kL+ with PVC lining, columns and optional roofs.
Steel tanks →Waterproofing
Bitumen torch-on and maintenance for roofs, foundations and retaining structures on farms and commercial buildings.
Waterproofing →Sectors We Serve
Agriculture and game farming dominate our dam and tank work, but mines, estates, schools, warehouses and small commercial buildings use our waterproofing and maintenance services too. Whether you are a first-time smallholder or a mine planning containment upgrades, you get the same technical honesty on liner grade and realistic timelines.
Quality Materials and Accountable Installation
We source HDPE, PVC, bitumen membranes and galvanised steel from established suppliers. Warranties on materials — up to 10 years on qualifying liner products — are backed by documented installation practices. Our reputation in the industry rests on dams that hold water and roofs that stay dry years after sign-off.
Specialised Services
- Steel water storage tanks with custom sizes, roofs and support columns
- HDPE geomembrane linings for large gravel and farm dams
- PVC linings for ponds and zinc reservoirs
- Expert waterproofing from roofs to foundations
- Bitumen waterproofing for slab roofs and cement or gravel dams
- Preventative maintenance with regular inspections and upkeep