Reliable, clean water is essential for homes, farms, and businesses — especially in Zimbabwe. But a collapsed borehole can cut off that vital water supply and create costly problems. At Nakiso Borehole Drilling, we believe in more than just drilling — we build water security. We use industry-leading practices to prevent borehole collapse, because we know what’s at stake.
If you want a borehole that lasts, delivers safe water reliably, and stands up to geological and environmental challenges, that means making smart choices from the start: the right casing, the right installation, and trusted professionals.
Why Boreholes Collapse — The Main Risks
1. Substandard or Inadequate Casing Materials
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The casing supports the borehole walls and prevents soil, gravel, or rock from collapsing inward. If casing is weak, made from recycled or low-quality materials, the borehole becomes vulnerable.
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Boreholes without proper casing or with thin, low-pressure casings often fail. Nakisobore Holes+1
2. Improper Casing Depth or Installation
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If casing doesn’t extend deep enough into stable rock or stable soil strata, the borehole remains exposed to unstable ground — especially risky in loose soils like sand, clay, or gravel.Poor installation practices can leave gaps, weak points, or inadequate support — all of which threaten long-term stability.
3. Unstable Geological Conditions & Soil Composition
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Boreholes drilled in unconsolidated or weak soils (e.g. clay, sand, gravel) or soft/fractured rock are more prone to wall collapse.
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Some soil/rock types (like clays or shales) may swell when exposed to water — this expansion can exert pressure on casing and cause deformation or collapse. Nakisobore Holes+1
4. Groundwater Fluctuations and Hydrostatic Pressure
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Changes in groundwater levels (due to seasons, droughts, over-pumping) can alter pressure around the borehole walls, increasing collapse risk. Hydrostatic pressure or lateral pressures from aquifer dynamics or surrounding saturated soils can also destabilize the borehole.
5. Poor Drilling & Completion Practices, and Human Error
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Incorrect drilling methods (wrong drilling fluid, wrong mud weight, poor wall support) can compromise stability from the start.
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Inadequate grouting, improper sealing, or lack of structural support can accelerate borehole failure.
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Over-pumping or misuse of the borehole (especially soon after drilling) can worsen instability. Nakisobore Holes+1
6. Environmental and External Factors
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Soil erosion (especially after heavy rains), shifting soils, or external vibrations (e.g. nearby construction) can destabilize boreholes.
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Lack of maintenance — allowing sediment build-up, cracks, or structural wear to go unchecked — also contributes to eventual collapse.
Consequences of Collapse: Loss of water supply, risk of contamination (if collapsed walls allow polluted surface or shallow water in), and high costs for repair or re-drilling — often many times more than the original investment.
How Nakiso Borehole Drilling Prevents Collapse — Our Best Practices
At Nakiso Borehole Drilling, we’ve built our reputation on preventing borehole failure from the very first drill. Here’s how we deliver lasting water security:
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Use of High-Quality, Virgin-material Casings (Class 9 / Class 10): We never compromise. We use only pressure-rated PVC casings designed for maximum collapse resistance — essential in unpredictable geology. Nakisobore Holes+2Nakisobore Holes+2
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Double Casing System: In challenging soils or where extra protection is needed, we install a two-layer casing (outer + inner). This significantly enhances structural stability, reduces risk of collapse, and prevents silt or sediment infiltration. Nakisobore Holes+2Nakisobore Holes+2
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Proper Casing Diameter & Depth: We typically use 140 mm casings (rather than undersized ones) to ensure structural integrity, better flow rates, and long-term functionality. Nakisobore Holes+1
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Comprehensive Site Assessment & Geological Evaluation: Before drilling, we analyze soil/rock composition, groundwater behavior, and site conditions to tailor the drilling and casing method to your specific site. Nakisobore Holes+2Nakisobore Holes+2
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Professional Drilling & Completion Practices: We follow industry standards — from correct drilling fluid usage to secure casing installation, grouting when needed, and ensuring casing extends into stable formations.
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Long-Term Reliability & Water Quality Protection: With double casing, high-quality material, and careful installation, the risk of sediment ingress, contamination, or structural failure is greatly reduced — offering a durable, safe water source. Nakisobore Holes+2Nakisobore Holes+2
Why Nakiso Borehole Drilling Is Zimbabwe’s Best Choice
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Our commitment to Class 9/10 virgin-material casings and double casing ensures unmatched borehole integrity — significantly reducing collapse risk even in challenging soil or geological conditions.
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We don’t cut corners: from site assessment to proper casing depth + diameter, professional drilling practices, and quality installation, we ensure every step meets high standards.
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We design boreholes for the long term—prioritizing safety, sustainability, and water quality, not just quick fixes.
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For homeowners, farmers, or businesses wanting a reliable, sustainable water source — Nakiso offers peace of mind that the borehole will perform for years, even decades.
In short: if you want the best borehole drilling company in Zimbabwe that delivers durability, reliability, and water security — Nakiso Borehole Drilling is your partner.
Conclusion & Call to Action
Don’t gamble with your water supply. A borehole is more than a hole in the ground — it’s a lifeline. A poorly built borehole can collapse, contaminate, or become unusable, often when you need water most.
Invest in quality from the start: insist on Class 10 (or Class 9/10) casing, double casing with virgin materials, proper site assessment, professional drilling, and secure installation.
Choose Nakiso Borehole Drilling — Zimbabwe’s best borehole drilling company — for a safe, durable, and reliable water source that serves you today and for future generations.
Nakiso Borehole Drilling: Your Trusted Partner for Safe, Sustainable Water Access
At Nakiso Borehole Drilling, we are your comprehensive partner for unlocking reliable water on your property. Our highly skilled team tackles all drilling projects, from standard boreholes to specialized Blast Hole and RC Drilling. We handle everything in-house for a seamless experience, encompassing expert borehole siting, efficient drilling, and pump installation – solar, electric, or manual – tailored to your specific needs. With Nakiso, your reliable water source is just a drill away.We don't just strive to be the best; we maintain the industry's strictest quality standards and are committed to sustainable practices for the future of Zimbabwe's water security.
For All Your Borehole Drilling Services Contact Us:
Five Facts About Borehole Drilling That You Need To Take Note Of:
1. Know Your Borehole Casings:The Preferred Borehole Casing In Zimbabwe Is Class 9 and 10 (Pressure Classes.)This is because Class 9 and Class 10 Casings are more collapse resistant. The strength of a Casing is often described as collapse resistance.
2. Borehole Drilling Depth: The exact depth, of where the water is located, cannot be established by the drilling contractor nor the Water Surveyor (Borehole Siter).
3. The Is No 100% Guarantee On Water: It is important to note that it is never a 100% guarantee that any hole will yield water, the amount and water quality can also not be guaranteed by the drilling contractor and water surveyor.
4. Borehole Siting or Water Surveying Is Important: Making use of a hydrologist or traditional water diviner will increase your chances of having a successful borehole that will yield a sufficient amount of water.
5. Know The Risks: The risk of the borehole drilling lies with the property owner. The client will still be liable for the drilling costs irrespective of a borehole yielding water or not.
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Our Branches and Our Contacts
Churchill Ave Branch
Business Offices (HQ):55 Churchill Avenue,
Alexandra Park,
Harare North,
Zimbabwe.
Call Us Today:
Office Numbers: +263 867 71 88844
Sales: +263 78 860 8009
Operations: +263 78 860 8005
Marketing: +263 78 876 6701
Email: info@nakisoboreholes.co.zw
Website: www.nakisoboreholes.co.zw
Bluff Hill Branch
Business Offices:36 St. Anthans Drive,
Bluff Hill,
Harare,
Zimbabwe.
Call Us Today:
Office Numbers: +263 71 494 0883
Sales: +263 78 860 8009
Operations: +263 78 860 8005
Marketing: +263 78 876 6701
Email: info@nakisoboreholes.co.zw
Website: www.nakisoboreholes.co.zw
