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Water Tower Construction services in Kenya, Borehole Drilling and Water Tank construction.
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Contact Raeli Hydro Engineering Systems for the best well and borehole drilling services in Kenya.
Once the geologist has surveyed the area, he/she will provide you with a detailed report on the geology of the parcel of land. This report will also indicate the estimated depth of the water and the exact location of the borehole. The report is an important document you will require, to get the drilling process going, besides other important documents.
IMPORTANT LICENSES & PERMITS
- Geological/Hydrological Survey carried out by a registered geologist in the designated country.
- Water Resource Management Authority (WRMA)Authorization.
- Environmental impact assessment report
- NEMA License
Alice Muhoho
I am delighted with the quality of installation and the after sales service. I chose Raeli Hydro Systems because the drilling was likely to be the most unpredictable and complicated part of the installation and that is the core strength of Raeli Hydro Systems . As it happened, we experienced serious issues with artesian water sixty meters down and it might have created a real problem if the drilling was being undertaken by a subcontractor to a heat pump installer. Raeli Hydro Systems had the experience to solve the problem and were able to throw more resources into the project in order complete on time.
Alan Kimuya
A note to register my appreciation for the work you have done for me. I love the quality of work, you guys lived up to the International tag. We are so pleased with the results and I love the look of the kit in my Plant room. It was a pleasure to meet all your crew, they seem a great team so please pass on my thanks to them. I'm sure I will see some of them in the future. I wish you and your Company all the success in the future and would certainly recommend Raeli Hydro Systems to anyone looking for your services in the future.
James Oloo
Thank you for the work. We really enjoyed working with the Raeli Hydro Systems team. They have done a great job. We look forward to welcoming Raeli Hydro Systems every year for the maintenance of the borehole and the connection to the heat pump.
Our Frequently Asked Questions
Most frequently asked questions by our clients.
1. What is the total cost of drilling a borehole?
The cost of drilling a borehole depends on thelocation and depth of the borehole. Kindly get in touch with us for a quotation.
2. Whats pecific documents do I require?
- Geological/HydrologicalSurveycarriedoutbyaregisteredgeologistinthedesignatedcountry.
- Water Resource Management Authority (WRMA)Authorization.
- Environmental impact assessmentreport
- NEMALicense
If required, we can assist in acquiring the above permits and licenses.
3. What is a hydro-geological report ?
Once the geologist has surveyed the area, he/she will provide you with a detailed report on the geology of the parcel of land. This report will also indicate the estimated depth of the water and the exact location of the borehole.
4. Why do I need a NEMA report ?
A NEMA report consists of an environmental impact assessment report that details the impact of drilling a borehole on the environment. This is a mandatory requirement by law before drilling of the borehole (in Kenya only)
5. Why do I need water analysis report ?
After drilling the borehole and doing test pumping, we will take a water sample to the government
RAELI HYDRO SERVICES GALLERY
The Best Borehole Drilling and Services in Nairobi and Kenya
Your Trusted Water Engineering Partner Across Kenya
Why Borehole Drilling Matters
The Best Borehole Drilling Company in Kenya, Raeli Hydro, has spent years providing reliable, affordable, and technically superior water solutions to homes, farms, industries, schools, and institutions across the country. Access to clean, consistent groundwater is not a luxury — it is a necessity that drives health, productivity, and economic growth. With unreliable municipal water supply affecting millions of Kenyans, boreholes have emerged as the most dependable long-term water solution. Whether you are in an urban estate or a remote rural community, a well-drilled and properly equipped borehole can transform daily life.
Raeli Hydro brings engineering expertise, cutting-edge equipment, and deep knowledge of Kenya’s diverse hydrogeological conditions to every project. From hydrogeological surveys to pump installation, water testing, and ongoing maintenance, Raeli Hydro offers end-to-end borehole solutions designed to deliver maximum water yield and long operational life.
💧 Did you know? Kenya has an estimated groundwater potential of over 650 billion cubic metres — yet less than 3% is currently being utilized. Borehole drilling is the most direct pathway to unlocking this critical resource for communities and businesses alike.
Our Comprehensive Borehole Drilling Services and Estimated Costs
As The Best Borehole Drilling Company in Kenya, Raeli Hydro offers a full spectrum of borehole and water engineering services. Below is a detailed breakdown of every service we provide, along with estimated costs to help you plan your water project with confidence. All prices are estimates and may vary based on location, depth, and site conditions.
| Service | Description | Estimated Cost (KES) |
| Borehole Siting & Hydrogeological Survey | Geophysical survey to identify the best drilling location | 30,000 – 80,000 |
| Borehole Drilling (up to 100m) | Rotary or DTH drilling for residential/commercial use | 250,000 – 450,000 |
| Borehole Drilling (100m – 200m) | Deep drilling for high-demand or hard-rock areas | 450,000 – 900,000 |
| Borehole Casing & Lining | Steel or PVC casing to prevent collapse and contamination | 60,000 – 180,000 |
| Pump Supply & Installation | Submersible or surface pump fitted and connected | 80,000 – 250,000 |
| Pump Testing & Yield Analysis | Sustained yield test to determine water output capacity | 30,000 – 60,000 |
| Water Quality Testing & Analysis | Laboratory testing for chemical, biological, physical parameters | 15,000 – 50,000 |
| Borehole Rehabilitation | Cleaning and restoring old or low-yield boreholes | 100,000 – 300,000 |
| Solar Pump System Installation | Off-grid solar-powered pumping systems | 150,000 – 500,000 |
| Water Storage Tank Installation | Elevated or ground-level plastic/concrete tanks | 50,000 – 200,000 |
| Borehole Equipping (Full Package) | Pump, rising main, controller, meter, and piping | 200,000 – 600,000 |
| Borehole CCTV Inspection | Camera survey for structural integrity and blockages | 25,000 – 70,000 |
💧 Industry Insight: A properly drilled and maintained borehole can last 25–50 years, making it one of the highest-return investments a property owner or institution can make. The key to longevity lies in quality drilling, correct casing, and regular maintenance.
Step 1: Hydrogeological Survey and Borehole Siting
Before a single metre of ground is drilled, Raeli Hydro conducts a thorough hydrogeological survey of your site. This involves geophysical techniques such as Vertical Electrical Sounding (VES) and seismic refraction analysis to map subsurface water-bearing formations. Our team of qualified hydrogeologists uses advanced resistivity meters to identify fractures, aquifers, and optimal siting points that maximize water yield while minimizing drilling depth and cost.
Skipping the survey phase is the leading cause of dry boreholes and wasted investment. As The Best Borehole Drilling Company in Kenya, Raeli Hydro insists on this critical first step for every project, regardless of size.
Step 2: The Borehole Drilling Process Explained
Raeli Hydro employs state-of-the-art Down-The-Hole (DTH) hammer rigs and rotary drilling equipment capable of penetrating hard basement rock as well as softer sedimentary formations. Our drilling process follows a structured sequence: site mobilization, pilot borehole drilling, casing installation, gravel packing, grouting, and final development. Each stage is monitored by our on-site engineers to ensure structural integrity, maximum yield, and long-term performance.
We operate across all geological zones — from the volcanic highlands of the Rift Valley to the crystalline basement rock of central Kenya and the coastal sedimentary formations. As The Best Borehole Drilling Company in Kenya, our rigs are equipped to handle depths of up to 300 metres, covering the full range of aquifer targets across the country.
💧 Technical Tip: The yield of a borehole is measured in litres per hour (L/hr). A domestic household typically requires a minimum yield of 500 L/hr, while commercial and agricultural uses may demand 2,000–10,000 L/hr or more. Always pump-test your borehole before equipping it.
Step 3: Pump Selection, Supply, and Installation
Once a borehole has been drilled and its yield confirmed, the next critical step is pump selection and installation. Raeli Hydro supplies and installs a wide range of pumping systems from globally recognized brands, including Grundfos, KSB, Pedrollo, and Lorentz solar pumps. Our engineers carefully match pump capacity to borehole yield, dynamic water level, and distribution requirements to prevent over-pumping and ensure optimal performance.
We provide full installation services including submersible pump fitting, rising main pipework, wellhead assembly, pressure tanks, and control panels. For off-grid locations, our solar pump solutions eliminate electricity dependency and reduce long-term operational costs significantly.
Step 4: Water Quality Testing and Treatment Solutions
Safe water is clean water. Raeli Hydro, recognized as The Best Borehole Drilling Company in Kenya, partners with accredited laboratories to conduct comprehensive water quality analysis covering physical, chemical, and microbiological parameters. Our tests include pH, turbidity, total dissolved solids (TDS), nitrate, fluoride, iron, coliform bacteria, and more — all benchmarked against Kenya Bureau of Standards (KEBS) and World Health Organization (WHO) guidelines.
Where water quality issues are identified, we design and install appropriate treatment systems including UV sterilization units, reverse osmosis (RO) systems, iron removal filters, sand filters, and chlorination setups. Clean, tested water is not just a regulatory requirement — it is a moral obligation we take seriously.
💧 Health Fact: According to the World Health Organization, contaminated water causes over 485,000 diarrhoeal deaths annually worldwide. Regular water quality testing from your borehole is one of the simplest and most effective public health interventions available.
Borehole Rehabilitation and Maintenance Services
Old, poorly performing, or silted boreholes can often be restored to full productivity through professional rehabilitation. Raeli Hydro offers CCTV borehole camera inspections to diagnose structural problems, pump failures, casing damage, and screen blockages with precision. Our rehabilitation services include airlifting, jetting, chemical treatment, screen replacement, and re-development — bringing dormant boreholes back to life at a fraction of the cost of new drilling.
As The Best Borehole Drilling Company in Kenya, we recommend a borehole maintenance schedule at least once every two years to prevent sediment buildup, biological fouling, and mechanical wear from shortening the life of your investment.
Borehole Drilling Costs Across Kenya by Region
Borehole drilling costs in Kenya vary significantly by region, driven by differences in geology, borehole depth requirements, accessibility, and local permit requirements. The table below provides a practical regional cost guide based on Raeli Hydro’s field experience. As The Best Borehole Drilling Company in Kenya, we provide transparent, itemized quotations for every project.
| Region / County | Typical Borehole Depth | Estimated Drilling Cost (KES) | Notes |
| Nairobi County | 60 – 120m | 280,000 – 550,000 | Urban demand; requires city council permits |
| Kiambu County | 50 – 100m | 250,000 – 480,000 | Good aquifer potential in most areas |
| Machakos & Makueni | 80 – 150m | 320,000 – 700,000 | Semi-arid; deeper wells may be needed |
| Nakuru & Rift Valley | 60 – 130m | 270,000 – 580,000 | Volcanic geology; generally good yields |
| Mombasa & Coast | 50 – 120m | 260,000 – 520,000 | Saltwater intrusion risk near the coast |
| Western Kenya | 40 – 90m | 230,000 – 440,000 | High water table; shallower boreholes common |
| Kajiado & Narok | 100 – 200m | 450,000 – 950,000 | Arid zones; deep drilling often required |
💧 Permit Reminder: All boreholes drilled in Kenya must be registered with the Water Resources Authority (WRA) under the Water Act 2016. Raeli Hydro assists clients with all WRA abstraction permit applications, drilling approvals, and compliance documentation as part of our full-service offering.
Why Choose Raeli Hydro: The Best Borehole Drilling Company in Kenya
Raeli Hydro stands apart because of our commitment to engineering excellence, client transparency, and post-installation support. Every project we undertake is backed by a qualified team of hydrogeologists, drilling engineers, pump technicians, and water quality specialists working in unison to deliver a result that exceeds client expectations. We use only premium-grade casing materials, factory-tested pumps, and calibrated testing equipment on every site.
Our project portfolio spans residential estates in Nairobi, tea farms in Kericho, schools in Kajiado, flower farms in Naivasha, and manufacturing plants on Mombasa Road. From the smallest domestic borehole to large-scale multi-well water supply schemes, we apply the same rigorous standards to every assignment. This is precisely why we are acknowledged as The Best Borehole Drilling Company in Kenya by our growing base of satisfied clients across all 47 counties.
💧 Client Assurance: Raeli Hydro provides a comprehensive project report upon completion of every borehole. This includes the driller’s log, pump test data, water quality results, GPS coordinates, WRA registration documents, and a maintenance schedule — everything you need to manage your water asset confidently.
Solar-Powered Borehole Systems: The Future of Rural Water Supply
Kenya’s abundant sunshine makes solar-powered borehole pumping systems a highly viable and cost-effective alternative to grid-powered setups. Raeli Hydro designs and installs complete solar pumping systems including photovoltaic (PV) panels, MPPT controllers, submersible solar pumps, mounting structures, and storage tanks. These systems are especially popular for schools, health centres, and agricultural projects in off-grid areas.
A well-sized solar pump system can deliver thousands of litres per day with zero fuel costs and minimal maintenance. As The Best Borehole Drilling Company in Kenya, Raeli Hydro has installed solar borehole systems across arid and semi-arid lands (ASALs) where energy access remains a challenge.
Regulatory Compliance and WRA Permits
Borehole drilling in Kenya is a regulated activity under the Water Act 2016, administered by the Water Resources Authority (WRA). Any borehole drilled without proper registration and abstraction permits is subject to penalties and closure. Raeli Hydro manages the entire permit process on behalf of our clients — from the initial WRA drilling notification to post-drilling abstraction permit applications.
We maintain full compliance records for every project and ensure that all boreholes are properly registered, metered where required, and in conformity with WRA environmental and technical guidelines. Choosing The Best Borehole Drilling Company in Kenya means choosing a partner that protects your investment through full legal and regulatory compliance.
💧 Regulatory Note: The Water Resources Authority (WRA) requires that all groundwater abstraction above 1,000 m³ per month must be metered and reported. Raeli Hydro installs calibrated water meters on all commercial and institutional boreholes and assists with monthly abstraction reporting as part of our after-sales service package.
Getting Started with Raeli Hydro
Beginning your borehole project with Raeli Hydro is simple. Contact our team to schedule a free initial consultation and site assessment. Our engineers will review your water demand, assess the site geology, and provide a detailed proposal with transparent pricing and timelines. As The Best Borehole Drilling Company in Kenya, we are committed to making quality groundwater accessible to every Kenyan — from urban homeowners to rural communities and large commercial enterprises.
We serve clients in Nairobi, Kiambu, Machakos, Kajiado, Nakuru, Naivasha, Eldoret, Kisumu, Mombasa, and all counties across Kenya. Our 24/7 technical support line ensures that help is always available whenever you need it, long after your borehole is commissioned.
📞 Contact Raeli Hydro Today
Tel: 0700 666888 | Email: info@raelihydro.co.ke | Web: www.raelihydro.co.ke
Offices in Nairobi, Mombasa, Nakuru, Kisumu & Eldoret
💧 Borehole Drilling & Associated Services — Cost Guide for Kenya
By Raeli Hydro | Updated 2025 | All costs are estimates in Kenyan Shillings (KES) and may vary based on location, geology, depth, and site accessibility.
1. 🔍 Site Survey & Hydrogeological Services
| Service | Description | Unit | Estimated Cost (KES) |
|---|---|---|---|
| Hydrogeological Desk Study | Review of existing geological maps, satellite data, and regional aquifer reports | Per site | 15,000 – 35,000 |
| Geophysical Survey (VES) | Vertical Electrical Sounding using resistivity meter to map subsurface layers | Per site | 30,000 – 80,000 |
| Seismic Refraction Survey | Advanced seismic method for hard-rock terrain mapping | Per site | 50,000 – 120,000 |
| Borehole Siting Report | Written hydrogeological report with recommended drilling coordinates | Per report | 20,000 – 50,000 |
| Environmental Impact Assessment (EIA) | Statutory EIA for large-scale water projects as required by NEMA | Per project | 80,000 – 300,000 |
| WRA Drilling Notification | Preparation and filing of drilling notification with Water Resources Authority | Per application | 10,000 – 25,000 |
2. 🛠️ Borehole Drilling — By Depth
| Depth Range | Typical Application | Estimated Cost (KES) | Notes |
|---|---|---|---|
| 0 – 50 m | Shallow alluvial aquifers, high water table zones | 100,000 – 220,000 | Western Kenya, flood plains |
| 51 – 100 m | Standard residential and light commercial boreholes | 250,000 – 450,000 | Most common depth in Nairobi & Central |
| 101 – 150 m | Medium commercial, schools, health centres | 450,000 – 700,000 | Rift Valley, Machakos, Kiambu |
| 151 – 200 m | Deep aquifers, hard rock terrain, semi-arid zones | 700,000 – 1,000,000 | Kajiado, Makueni, Samburu |
| 201 – 250 m | High-demand commercial and agricultural projects | 1,000,000 – 1,400,000 | ASAL regions, deep basement rock |
| 251 – 300 m | Industrial-scale or challenging geological formations | 1,400,000 – 2,000,000 | Specialist rigs required |
| Mobilisation & Demobilisation | Rig transport to and from site (within 100 km of Nairobi) | Per trip | 40,000 – 120,000 |
3. 🧱 Borehole Casing & Lining Materials
| Material / Service | Description | Unit | Estimated Cost (KES) |
|---|---|---|---|
| uPVC Casing (6″) | Light-duty plastic casing for shallow domestic boreholes | Per metre | 2,500 – 4,500 |
| uPVC Casing (8″) | Medium-duty casing for residential and light commercial use | Per metre | 4,000 – 7,000 |
| Steel Casing (6″) | Heavy-duty galvanised steel for hard rock formations | Per metre | 5,000 – 9,000 |
| Steel Casing (8″) | Commercial-grade steel casing | Per metre | 8,000 – 14,000 |
| Stainless Steel Screen | Slotted screen for gravel pack zones to filter sediment | Per metre | 6,000 – 15,000 |
| Gravel Packing | Filter gravel placed around screen to prevent fine sand entry | Per bag (25 kg) | 1,500 – 3,000 |
| Cement Grouting (Sanitary Seal) | Prevents surface water contamination at borehole head | Per borehole | 15,000 – 35,000 |
| Wellhead Completion Cap | Lockable galvanised wellhead cap with vent and access port | Per unit | 8,000 – 20,000 |
4. ⚙️ Pump Supply & Installation
| Pump Type / Service | Description | Capacity | Estimated Cost (KES) |
|---|---|---|---|
| Grundfos SP Series (Submersible) | High-efficiency submersible pump for residential use | 0.5 – 2.2 kW | 90,000 – 200,000 |
| Grundfos SP Series (Commercial) | Heavy-duty submersible for commercial/institutional use | 3 – 11 kW | 200,000 – 550,000 |
| KSB Submersible Pump | Reliable alternative brand for medium-depth boreholes | 0.75 – 5.5 kW | 80,000 – 300,000 |
| Pedrollo Submersible Pump | Cost-effective option for shallow to medium depths | 0.37 – 2.2 kW | 50,000 – 150,000 |
| Surface Centrifugal Pump | For shallow boreholes with high water tables | Up to 30 m suction head | 30,000 – 90,000 |
| Hand Pump (Afridev/India Mark II) | Manual pump for rural/off-grid low-volume applications | Manual | 40,000 – 100,000 |
| Rising Main Pipework (GI) | Galvanised iron rising main from pump to surface | Per metre | 800 – 1,800 |
| Rising Main (uPVC/HDPE) | Plastic rising main — lighter and corrosion-resistant | Per metre | 400 – 900 |
| Pump Installation (Labour) | Lowering pump, connecting cables and rising main | Per borehole | 20,000 – 60,000 |
| Control Panel & Starter Box | Motor protection, overload relay, on/off control | Per unit | 25,000 – 80,000 |
| Pressure Tank | Diaphragm tank for consistent pressure in distribution | 100 – 500 L | 20,000 – 70,000 |
5. ☀️ Solar Pumping Systems
| Component / Service | Description | Unit | Estimated Cost (KES) |
|---|---|---|---|
| Lorentz PS2 Solar Pump | Premium solar submersible pump with smart controller | Per unit | 150,000 – 400,000 |
| Grundfos SQFlex Solar Pump | Versatile solar pump for variable irradiance conditions | Per unit | 180,000 – 450,000 |
| Generic Solar Submersible Pump | Budget-friendly option for low-yield boreholes | Per unit | 60,000 – 150,000 |
| Solar PV Panels (300W–500W) | Monocrystalline panels to power the pump system | Per panel | 18,000 – 35,000 |
| MPPT Solar Controller | Maximum power point tracking charge/pump controller | Per unit | 15,000 – 50,000 |
| Panel Mounting Structure | Hot-dip galvanised ground or roof mount frame | Per set | 25,000 – 70,000 |
| Solar System Design & Installation | Full turnkey solar pump system design and commissioning | Per project | 50,000 – 120,000 |
| Complete Solar Borehole Package (Small) | 2–4 panels, controller, solar pump, 5,000 L tank | Package | 280,000 – 550,000 |
| Complete Solar Borehole Package (Large) | 6–12 panels, high-yield pump, 10,000+ L tank | Package | 550,000 – 1,200,000 |
6. 🧪 Pump Testing & Yield Analysis
| Test / Service | Description | Duration | Estimated Cost (KES) |
|---|---|---|---|
| Step Drawdown Test | 3–4 progressive pumping steps to determine safe yield | 4 – 6 hours | 20,000 – 45,000 |
| Constant Rate Pumping Test | Sustained pumping at fixed rate to measure aquifer parameters | 24 – 72 hours | 35,000 – 80,000 |
| Recovery Test | Measures water level recovery after pump shut-off | 2 – 24 hours | 15,000 – 30,000 |
| Full Borehole Yield Analysis Report | Comprehensive report with aquifer transmissivity, safe yield, pump recommendations | Per report | 25,000 – 60,000 |
| Static Water Level Measurement | Pre-drilling and post-drilling water level logging | Per measurement | 5,000 – 15,000 |
7. 🔬 Water Quality Testing
| Test Category | Parameters Covered | Estimated Cost (KES) |
|---|---|---|
| Basic Physical Test | pH, colour, turbidity, odour, taste, temperature | 5,000 – 12,000 |
| Chemical Analysis (Basic) | TDS, hardness, iron, manganese, fluoride, nitrate, chloride, sulphate | 15,000 – 30,000 |
| Heavy Metals Panel | Lead, arsenic, chromium, cadmium, copper, zinc | 20,000 – 45,000 |
| Microbiological Test | Total coliforms, E. coli, faecal coliforms | 8,000 – 18,000 |
| Full Potability Test (KEBS/WHO) | All physical, chemical, heavy metals, and microbiological parameters | 40,000 – 80,000 |
| Irrigation Suitability Test | SAR, sodium, boron, pH, EC — for agricultural water users | 20,000 – 40,000 |
| Annual Water Quality Monitoring | Quarterly or biannual testing and compliance reporting | Per year |
8. 💧 Water Treatment Systems
| System | Application | Estimated Cost (KES) |
|---|---|---|
| UV Sterilisation Unit | Eliminates bacteria and viruses without chemicals | 25,000 – 80,000 |
| Chlorination Dosing System | Automated chemical disinfection for large volumes | 40,000 – 120,000 |
| Iron & Manganese Removal Filter | Oxidation and filtration of dissolved iron/manganese | 60,000 – 200,000 |
| Multimedia Sand Filter | Removes suspended solids and turbidity | 50,000 – 180,000 |
| Activated Carbon Filter | Removes odour, colour, organic compounds, and chlorine | 40,000 – 120,000 |
| Reverse Osmosis (RO) System | Removes dissolved salts, TDS, and contaminants | 80,000 – 350,000 |
| Fluoride Removal System | Bone char or activated alumina filter for high-fluoride water | 70,000 – 200,000 |
| Full Water Treatment Plant | Custom-designed multi-stage treatment for institutional use | 300,000 – 2,000,000+ |
9. 🏗️ Water Storage & Distribution
| Item / Service | Description | Capacity | Estimated Cost (KES) |
|---|---|---|---|
| Plastic Water Tank (Roto/Polytank) | Rotationally moulded polyethylene tank | 2,000 – 5,000 L | 20,000 – 60,000 |
| Plastic Water Tank (Large) | High-capacity ground or elevated storage | 10,000 – 50,000 L | 80,000 – 350,000 |
| Ferrocement Tank | On-site cast ferrocement tank for rural communities | 10,000 – 50,000 L | 60,000 – 250,000 |
| Elevated Steel Tank & Tower | Galvanised steel tank on fabricated tower for gravity distribution | 5,000 – 20,000 L | 150,000 – 500,000 |
| Distribution Piping (HDPE) | Main and branch pipes from storage to points of use | Per metre | 300 – 1,200 |
| Tap Stands & Kiosks | Community water kiosk with concrete apron and taps | Per unit | 40,000 – 120,000 |
| Booster Pump System | Pump to increase pressure in distribution network | Per unit | 40,000 – 150,000 |
10. 🔧 Borehole Rehabilitation & Maintenance
| Service | Description | Estimated Cost (KES) |
|---|---|---|
| CCTV Borehole Camera Inspection | Video survey to assess casing, screen, and internal condition | 25,000 – 70,000 |
| Airlifting & Jetting | High-pressure air and water jetting to remove sediment blockages | 50,000 – 150,000 |
| Chemical Treatment (Acid/Chlorine) | Acid or biocide treatment to remove scale and biofilm | 40,000 – 120,000 |
| Screen Replacement | Removal of damaged screen and installation of new one | 80,000 – 200,000 |
| Pump Pull, Service & Re-installation | Extracting pump, servicing or replacing components, reinstalling | 30,000 – 90,000 |
| Full Borehole Rehabilitation | CCTV + jetting + chemical treatment + re-development + new pump | 150,000 – 400,000 |
| Routine Annual Maintenance Contract | Scheduled pump inspection, water test, and service report | Per year |
11. 📋 Regulatory, Documentation & Permits
| Service | Description | Estimated Cost (KES) |
|---|---|---|
| WRA Drilling Notification Filing | Statutory notification before drilling commences | 10,000 – 20,000 |
| WRA Groundwater Abstraction Permit | Permit to legally abstract and use groundwater | 15,000 – 50,000 |
| Borehole Registration Certificate | Official WRA registration of completed borehole | 8,000 – 20,000 |
| Water Meter Supply & Installation | Calibrated water meter as required by WRA for abstraction > 1,000 m³/month | 15,000 – 40,000 |
| Driller’s Log & Completion Report | Detailed stratigraphic log and technical project completion report | Per report |
| County/City Council Permit | Local authority approval for drilling within municipal areas | 10,000 – 40,000 |
📊 Summary: Typical All-Inclusive Borehole Project Costs
| Project Type | Scope | Estimated Total Cost (KES) |
|---|---|---|
| Basic Domestic Borehole | Survey + drilling (≤80m) + uPVC casing + hand pump | 180,000 – 350,000 |
| Standard Residential Borehole | Survey + drilling (100m) + casing + submersible pump + 5,000 L tank | 400,000 – 700,000 |
| Solar Residential Borehole | Survey + drilling (100m) + casing + solar pump + 5,000 L tank | 550,000 – 900,000 |
| Commercial / School Borehole | Survey + drilling (150m) + casing + pump + water test + permits | 800,000 – 1,500,000 |
| Agricultural / Irrigation Borehole | Survey + drilling (150–200m) + high-yield pump + distribution | 1,000,000 – 2,000,000 |
| Industrial / Estate Water Supply | Survey + deep drilling + full treatment + storage + distribution | 2,000,000 – 6,000,000+ |
⚠️ Disclaimer: All prices are indicative estimates based on prevailing Kenyan market rates as of 2025. Actual costs depend on site geology, borehole depth, equipment specifications, location, and contractor. Always request itemised quotations from licensed and WRA-registered drillers.
📞 Contact Raeli Hydro for a free site assessment and detailed quotation: Tel: 0700 666888 | Email: info@raelihydro.co.ke | Web: www.raelihydro.co.ke