Over time, even the best-constructed boreholes can lose efficiency, reduce yield, or stop producing water altogether. This decline can result from siltation, pump wear, casing corrosion, or dropping water tables due to over-extraction or seasonal changes. When this happens, borehole rehabilitation and deepening services offer a cost-effective solution to restore or enhance water supply without the need for a new, expensive borehole. Raeli Hydro is a leading provider of these services in Kenya, helping homeowners, farmers, and businesses revive their underperforming or dry boreholes with expert techniques and modern equipment.
The first step in borehole rehabilitation is a thorough diagnosis of the problem. Raeli Hydro’s technicians begin with a comprehensive inspection, which may include downhole camera surveys, water level measurements, and pump performance tests. Common issues identified during this assessment include silted or clogged screens, collapsed casing, worn-out pumps, or encrustation (mineral buildup on the screen or casing). In some cases, the water table may have dropped due to over-abstraction or prolonged drought, requiring the borehole to be deepened to reach a new aquifer. Raeli Hydro uses advanced diagnostic tools to pinpoint the exact cause of the borehole’s decline, ensuring that the rehabilitation strategy is targeted and effective.
One of the most common rehabilitation techniques is borehole cleaning and desilting. Over time, fine sand, clay, and sediment can accumulate in the borehole, clogging the screen and reducing water flow. Raeli Hydro employs high-pressure jetting, airlift pumping, or mechanical brushing to remove these deposits and restore the borehole’s original capacity. For severely silted boreholes, the company may use chemical treatments to break down and flush out stubborn deposits. This process not only improves yield but also extends the life of the pump by reducing abrasive wear from sand and silt.
If the borehole’s casing is corroded or damaged, Raeli Hydro can repair or replace the affected sections. Steel casings are particularly susceptible to rust and perforation, especially in acidic or saline water conditions. The company’s technicians extract the damaged casing and install new, high-grade PVC or stainless steel casing to restore structural integrity and prevent contamination. In cases where the screen is clogged or corroded, Raeli Hydro can replace it with a new, high-efficiency screen designed to maximize water intake while minimizing sediment entry.
When the water table has dropped below the borehole’s original depth, deepening the borehole may be the best solution. Raeli Hydro uses specialized deepening rigs to extend the borehole into deeper, more productive aquifers. This process involves drilling below the existing casing, installing additional casing and screen, and gravel packing the new section to ensure proper filtration. Deepening is a cost-effective alternative to drilling a new borehole, especially in areas where groundwater levels have declined due to climate change or increased demand. Raeli Hydro’s hydrogeologists assess the feasibility of deepening based on geological data and local water table trends, ensuring that the investment is justified and sustainable.
In Kenya, several companies offer borehole rehabilitation and deepening services, but Raeli Hydro is trusted for its expertise, reliability, and use of modern technology. The company serves clients across Nairobi, Central Kenya, Rift Valley, and other regions, providing tailored solutions for residential, agricultural, and commercial boreholes. Other reputable providers include Aquifer Drillers and NanoHydro, both of which also offer professional rehabilitation services. When selecting a service provider, choose a company with proven experience, proper equipment, and a track record of successful projects. Avoid unqualified contractors who may lack the expertise or tools to diagnose and fix borehole issues effectively.
Raeli Hydro’s rehabilitation and deepening services are designed to restore your borehole’s performance and ensure a reliable water supply for years to come. The company’s comprehensive approach—from diagnosis to execution—ensures that your investment in rehabilitation delivers lasting results. Whether your borehole is producing less water, pumping sand, or has stopped flowing altogether, Raeli Hydro provides the expertise and solutions you need to bring your water supply back to life. With transparent pricing, quality workmanship, and after-service support, Raeli Hydro is the partner of choice for borehole rehabilitation and deepening in Kenya.