Nairobi’s rapid growth has put increasing pressure on the city’s municipal water supply, leaving many estates, schools, and commercial buildings dealing with unpredictable rationing schedules. Borehole drilling services offer a permanent, on-site water source that removes dependence on city supply altogether. Bestcare Facilities Management Services provides end-to-end borehole drilling — from initial site survey through to a fully operational, permitted water source.
What our borehole drilling services include:
- Hydrogeological survey to locate the optimal drilling point
- Full-depth drilling using modern rotary and percussion rigs
- Casing and lining to prevent collapse and contamination
- Test pumping to confirm sustainable yield
- Water quality testing before use
- Water Resources Authority (WRA) permit application support
- Pump selection and installation
Borehole Drilling Process Breakdown
| Stage | Description | Typical Duration |
|---|---|---|
| Hydrogeological Survey | Geophysical assessment to locate water-bearing zones | 1 day |
| Permit Application | WRA drilling permit processing | 2–4 weeks |
| Drilling | Rotary/percussion drilling to target depth | 1–3 days |
| Casing & Lining | PVC or steel casing installation | Same day as drilling |
| Test Pumping | Yield and drawdown testing | 1 day |
| Water Quality Testing | Lab analysis of chemical and biological parameters | 3–5 days |
| Pump Installation | Submersible pump sizing and fitting | 1 day |
“A borehole is only as good as the survey behind it. Drilling blind, without a hydrogeological assessment, is how properties end up with dry holes or unreliable yields.”
1. Hydrogeological Survey
Before any drilling begins, our team conducts a geophysical survey to map underground water-bearing formations and recommend the most promising drilling point on your plot. This step significantly reduces the risk of a low-yield or dry borehole, and forms part of the documentation required for permitting.
2. WRA Permitting
All borehole drilling in Kenya requires authorization from the Water Resources Authority. We handle the permit application on your behalf, including submission of survey reports and site details, so you don’t have to navigate the regulatory process alone.
3. Drilling and Casing
Once permitted, our rigs drill to the depth recommended by the survey, typically ranging from 60 to over 200 metres depending on the area’s geology. PVC or steel casing is then installed to prevent the borehole walls from collapsing and to keep surface contaminants out of the water column.
“Casing quality is what separates a borehole that lasts twenty years from one that needs redrilling within five. It’s not a place to cut costs.”
4. Test Pumping and Yield Confirmation
After drilling, we run a test pumping exercise to measure the borehole’s sustainable yield and drawdown behaviour under continuous pumping. This data determines the correct pump size and informs realistic expectations for daily water availability.
5. Water Quality Testing
Groundwater quality varies significantly across Nairobi’s different geological zones. We collect samples for laboratory testing to check for hardness, iron content, and microbial contamination, and recommend appropriate filtration if treatment is required before the water is used for domestic purposes.
6. Pump Installation
The final step is fitting a submersible pump sized to the borehole’s depth and yield, connected to your storage tank and distribution plumbing. We size pumps conservatively to avoid over-pumping, which can shorten a borehole’s productive lifespan.
Who Needs Borehole Drilling Services
| Client Type | Why They Drill |
|---|---|
| Residential Estates | Reduce dependence on rationed city supply |
| Schools & Colleges | High daily water demand for large populations |
| Manufacturing Plants | Consistent water supply for production processes |
| Hotels & Lodges | Guest experience depends on reliable water access |
| Agribusinesses | Irrigation and processing water needs |
| Real Estate Developers | Water security as a selling point for new developments |
“Every serious property development in Nairobi’s outer suburbs now budgets for a borehole from day one — it’s no longer an emergency fallback, it’s part of the base infrastructure plan.”
Indicative Borehole Drilling Costs
| Item | Indicative Price Range (KES) |
|---|---|
| Hydrogeological Survey | 15,000 – 40,000 |
| Drilling (per metre, depth-dependent) | 4,500 – 7,500 |
| Casing (PVC, per metre) | 1,500 – 3,000 |
| Test Pumping | 15,000 – 30,000 |
| Water Quality Testing | 5,000 – 12,000 |
| Submersible Pump (supply + install) | 60,000 – 180,000 |
Final cost depends heavily on the depth required to reach a productive aquifer in your specific area — plots in some parts of Nairobi hit water at 60–80 metres, while others require drilling well past 150 metres.
“Depth is the single biggest cost driver in borehole drilling, and it’s exactly why a hydrogeological survey pays for itself — drilling deeper than necessary, or redrilling after a dry hole, costs far more than the survey itself.”
Frequently Asked Questions
How do I know if my plot can support a borehole? A hydrogeological survey is the only reliable way to confirm this. Groundwater availability varies significantly even between neighbouring plots, depending on underlying rock formations.
How long does the whole process take, including permits? From survey to a fully operational borehole with pump installed, the process typically takes 3–6 weeks, with WRA permit processing usually the longest single step.
What happens if the borehole yield is lower than expected? We size the pump and set expectations around the actual test-pumping results, not the survey estimate. In cases of genuinely low yield, we can advise on supplementary storage capacity to manage daily usage within what the borehole can sustainably provide.
Bestcare Facilities Management Services has drilled boreholes across Nairobi’s estates, industrial parks, and institutional campuses, always starting with a proper survey rather than guesswork. Our borehole drilling services are backed by permitting support, quality casing work, and pump installation that’s matched to your actual yield.
Contact Bestcare Facilities Management Services: 📞 0709 004 600 ✉️ [email protected]
Get in touch for a site assessment and a clear quote on borehole drilling services for your property.