Maji Hill operates across all 47 counties of Kenya. We have permanent teams in Nairobi, Mombasa, Kisumu, Nakuru, and Eldoret for rapid emergency response. Field teams mobilise to any county for projects, installations, GIS surveys, and scheduled services — including remote rural and off-grid locations. Emergency response is available 24/7 across all major urban areas, and scheduled services can be arranged nationwide with advance notice.

For any emergency — sewage overflow, burst pipe, pump failure, complete loss of water supply, or blocked drain — call or WhatsApp +254 710 573 334 immediately. Our emergency line is answered 24 hours a day, 7 days a week including weekends and public holidays. We confirm dispatch within 15 minutes with the team name and estimated arrival time. Do not submit a form for an emergency — call directly.

Maji Hill serves residential homeowners, gated estates and apartment blocks, hotels and lodges, restaurants and commercial kitchens, schools and universities, hospitals and health facilities, industrial and manufacturing facilities, property developers, county governments, water utilities, NGOs and development partners, and off-grid farms and rural installations. Our service range covers everything from a single domestic plumbing repair to a county-scale GIS water mapping project.

For most repair, plumbing, and drain services, the assessment is included in the service — our team inspects on arrival and provides a fixed-price quote before any work begins. For larger consultancy engagements such as water audits, GIS surveys, infrastructure planning, and hydraulic modelling, a scoping proposal is issued first so you understand the cost and scope before committing. We do not charge hidden fees or add items to an invoice without your prior approval.

Yes. Maintenance contracts are available for all our service areas — septic tank and exhauster scheduling, grease trap pump-out, drain cleaning and jetting, water tank cleaning, borehole pump servicing, smart monitoring subscriptions, water treatment plant operations, and GIS data update programmes. Contract clients receive priority dispatch for emergency call-outs and consolidated monthly invoicing. Contact us to discuss a contract tailored to your property’s specific services and frequency requirements.

Emergency bulk water delivery is available within 2 hours across most of Nairobi and other major towns. For properties in peri-urban and rural areas, same-day delivery is available in most cases with a morning booking. We operate tankers in sizes from 3,000 litres to 20,000 litres and can supply construction sites, residential estates, events, and commercial properties. Recurring scheduled delivery contracts are available for properties with a regular supply shortfall.

The WHO recommends cleaning domestic and commercial water storage tanks at least every 6 months. In Kenya’s climate, with its high temperatures and periods of reduced supply requiring longer storage times, 6-monthly cleaning is the minimum we recommend for residential tanks and 3-monthly for commercial and institutional tanks serving large populations. Signs a tank needs cleaning include discoloured water, sediment visible in the bottom of fixtures, algae growth, or an unusual taste or smell in the stored water.

Maji Hill’s water tank cleaning follows a 6-step WHO-aligned process: pre-clean inspection of the tank structure and fittings; complete draining; physical scrubbing of all interior surfaces to remove biofilm, algae, and sediment; high-pressure rinse; chemical disinfection with food-grade sodium hypochlorite solution applied to all surfaces and held for a minimum 30-minute contact time; and a post-clean water quality test with a certificate issued on passing. Confined-space trained technicians are used for underground and large tanks. A 6-month automatic service reminder is included.

Yes — a professional borehole siting survey significantly increases the probability of striking a productive aquifer at the depth and yield required. Drilling in the wrong location in Kenya’s basement rock terrain — which covers much of central and eastern Kenya — can produce a dry hole or very low yield at significant cost. A Maji Hill hydrogeological survey combines desktop geological review, satellite imagery analysis, the WRMA borehole database, field reconnaissance, and geophysical methods including Electrical Resistivity Tomography to identify and rank the best drilling locations. The survey also produces the spatial data required for the WRMA abstraction licence application.

A WRMA (Water Resources Management Authority) abstraction licence is required by Kenya’s Water Act 2016 for any borehole that abstracts groundwater for use. Operating a borehole without a valid WRMA licence is an offence that can result in fines, borehole sealing, and operational disruption. Maji Hill prepares all the spatial data, hydrogeological documentation, and supporting evidence required for a WRMA licence application as part of our borehole siting and drilling service, and manages the submission process on behalf of clients.

Borehole depths in Kenya vary significantly by geology. In the basement rock terrain of central Kenya (Nairobi, Nyeri, Machakos), productive aquifers are typically encountered between 60 and 180 metres depth, with yields commonly ranging from 1 to 10 m³/hour. In the sedimentary aquifers of the coast (Mombasa, Kilifi, Malindi), shallower depths of 30 to 80 metres can yield 5 to 30 m³/hour. In the Rift Valley, volcanic aquifers can produce very high yields at variable depths. A site-specific hydrogeological survey provides a reliable depth and yield estimate before drilling commitment.

Yes. Maji Hill’s borehole IoT monitoring package includes remote pump start, stop, and scheduling via GSM from any smartphone anywhere in Kenya. The system monitors pump operating hours, power draw, borehole water level, flow rate, and downstream tank level. Dry-run protection automatically stops the pump if flow drops below a set threshold — preventing motor burnout when the water level drops. Tank fill automation starts and stops the pump based on tank level, eliminating overflow and manual intervention.

A conventional septic tank separates solids from liquids through gravity settling but provides limited biological treatment. It requires desludging every 1 to 3 years and discharges partially treated effluent to a soakaway. A biodigester uses anaerobic bacteria in a sealed multi-chamber system to fully digest sewage solids — producing cleaner effluent and requiring no routine desludging when correctly sized for its user population. Biodigesters are now the preferred system for new installations across Kenya and are increasingly required by county authorities for new development approvals.

A soakaway (also called a drain field or leach field) is the underground drainage system that receives treated effluent from a septic tank or biodigester and disperses it into the surrounding soil. Soakaways fail when the soil pores become blocked with biofilm and fine particles — a process called bioclogging — preventing effluent from draining. The most common causes of failure are: solids overflowing from an overfull septic tank and blocking the soakaway; kitchen grease and fat entering the system; and the soakaway being undersized for the actual number of users. Signs of failure include waterlogged ground above the drain field and slow-draining fixtures across the property.

Hotels and restaurants require two things: a grease interceptor (grease trap) upstream of the main wastewater system to capture fats, oils, and grease from the commercial kitchen before they enter and destroy the treatment system; and a main treatment system sized to the peak daily wastewater flow — typically a packaged sewage treatment plant or a multi-stage biodigester. Both must produce effluent meeting NEMA discharge standards. Maji Hill designs, installs, and maintains NEMA-compliant commercial wastewater systems for hospitality properties across Kenya, including ongoing NEMA compliance management.

Many failing septic systems can be rehabilitated at significantly lower cost than full replacement. Options include: desludging and biological reactivation with a bacterial inoculant; soakaway rehabilitation or extension where the drain field has partially failed; outlet baffle replacement to prevent solids reaching the soakaway; and retrofitting a biodigester secondary treatment stage downstream of the existing tank to improve effluent quality. Full replacement is needed when the tank has structurally failed, the soakaway is permanently bioclogged and unrecoverable, or the system is so undersized for current load that rehabilitation is not viable. Maji Hill carries out a system assessment to determine the most cost-effective path before any work is recommended.

A conventional septic tank in Kenya should be emptied every 1 to 3 years depending on tank size, number of users, and what enters the system. An undersized tank or one serving more users than designed may need annual or more frequent emptying. Signs it is overdue include slow-draining fixtures, sewage odour from inspection covers, effluent surfacing over the soakaway, and lush vegetation above the tank. Maji Hill measures sludge depth at every service visit and records it — allowing us to advise whether your emptying frequency is correctly matched to your tank size and occupancy.

Maji Hill disposes of all faecal sludge at licensed faecal sludge treatment and disposal facilities — never illegally dumped in watercourses, open ground, or unauthorised sites. We issue a disposal certificate with every service recording the waste volume, disposal site name, and date. Illegal dumping — which remains common among unlicensed operators in Kenya — is both an environmental offence under EMCA and a public health hazard. Clients who have previously used unlicensed operators and received NEMA compliance queries will find our documentation resolves the gap immediately.

Yes. We operate tankers in multiple sizes — including 3,000-litre compact vehicles that fit through narrow gate openings, low-clearance areas, and confined compounds. Our suction hose extensions reach up to 60 metres from the vehicle parking position, allowing us to service tanks inside buildings, in courtyard centres, on hillside properties, and in locations where a standard exhauster vehicle cannot park near the tank. We confirm access requirements during booking and always dispatch the right vehicle for the site.

Complete emptying of a septic tank removes the active bacterial population responsible for the biological treatment process. Without reseeding, the tank will discharge largely untreated sewage to the soakaway for several weeks while the bacterial community re-establishes naturally — potentially damaging the soakaway. A biological inoculant — a concentrated dose of the correct anaerobic bacteria — applied immediately after emptying accelerates the restoration of biological activity, protecting the soakaway and restoring treatment function much faster. Maji Hill includes this with every complete tank emptying as standard practice.

Maji Hill dispatches emergency drain and sewer teams within 2 hours across most Kenyan urban areas, 24 hours a day, 7 days a week. Emergency teams are permanently on standby in Nairobi, Mombasa, Kisumu, Nakuru, and Eldoret — with on-site times often under 90 minutes for confirmed sewage overflows in central Nairobi. Call or WhatsApp +254 710 573 334 for emergency dispatch. Do not submit a form for an active overflow.

A drain that blocks every few weeks despite regular clearing almost always has a structural cause rather than a usage problem. The most common structural causes are: root intrusion through open joints in older clay or concrete pipes (roots re-grow rapidly after cutting if the entry point is not repaired); a displaced or sagging pipe section creating a low spot where solids accumulate; a collapsed section reducing pipe diameter; a misaligned joint forming a ledge that catches debris; and a grease trap that is undersized for the kitchen output, allowing grease breakthrough. A CCTV survey after jetting identifies the exact cause and allows a permanent repair to be designed.

High-pressure water jetting propels water at up to 200 bar through a flexible hose with a specialist nozzle that simultaneously cuts through the blockage and cleans the full pipe wall as the hose is retracted. It clears grease, silt, scale, and root fragments from pipes up to 600 mm diameter and up to 120 metres from the access point. Mechanical rodding uses rigid fibreglass rods to push or pull a localised soft blockage — effective for simple near-access domestic blockages but does not clean pipe walls, cannot clear compacted grease or root masses, and reaches only 25 metres from the access point. Jetting is the correct method for all commercial kitchens, recurring blockages, and any pipe with grease or root content.

Commercial grease traps in Kenyan hotels, restaurants, school canteens, and food processing facilities should be cleaned at least monthly — and in high-volume operations, weekly or fortnightly. Once a grease trap exceeds 25% of its volume in accumulated fat, it begins passing grease into the drainage system downstream, causing blockages that are far more expensive to clear than a routine pump-out. The correct interval depends on daily meal volume, food type, and trap size. Maji Hill offers grease trap maintenance contracts with fixed-frequency visits and a service certificate after each pump-out.

Low water pressure in Kenyan properties has several common causes: a failing or undersized pump that can no longer maintain adequate pressure; a waterlogged pressure tank that has lost its air cushion; internal scaling in galvanised pipework that has reduced the pipe bore significantly over years; a concealed leak losing pressure before it reaches the fixtures; a partially closed isolation valve after a previous repair; or a supply pipe to the property that is too small for the current number of occupants. A Maji Hill pressure audit identifies the exact cause and the most cost-effective fix — not just the most expensive one.

Yes. Maji Hill services and repairs all types of water pumps used across Kenya — submersible borehole pumps, centrifugal surface pumps, booster pump sets, and pressure pump systems. Our technicians diagnose motor faults, capacitor failure, pressure switch faults, impeller wear, and control panel issues. We carry replacement parts for most common pump brands sold in Kenya. Where a pump is beyond economic repair, we supply and install a replacement — often completing supply and installation in a single visit.

We use a systematic approach: first, a pressure test to confirm which section of pipework is losing pressure; then acoustic listening devices that detect the sound of pressurised water escaping through a pipe wall to narrow the location; and for under-slab leaks in concrete, thermal imaging to reveal temperature differences caused by water running below the floor. Once the leak is precisely pinpointed we open a targeted access point — not a guesswork trench — to complete the repair. The goal is the minimum necessary disruption to your property to achieve a permanent fix.

Yes. Maji Hill repairs and services all hot water system types found in Kenyan properties — electric geysers, solar water heaters, gas water heaters, and instantaneous electric shower units. Common repairs include heating element replacement, thermostat replacement, pressure relief valve servicing, anode rod replacement, and solar collector scale flushing. For solar systems we also address circulation pump faults and controller and sensor failures. Where a unit is beyond economic repair, we supply and install a replacement with full commissioning.

The most common water quality issues Maji Hill encounters across Kenya are: microbiological contamination (E. coli, coliforms) in borehole and surface water sources, particularly in areas with poor sanitation; high turbidity and suspended solids in surface water sources during the rainy season; high fluoride in rift valley groundwater sources; high iron and manganese in certain borehole sources causing staining and taste issues; high hardness (calcium and magnesium) causing scale and soap scum; and nitrate contamination near agricultural areas and pit latrines. A water quality analysis from an accredited laboratory identifies the specific parameters requiring treatment at your source.

Yes. Maji Hill designs, supplies, installs, and commissions water treatment systems for residential, commercial, institutional, and industrial applications across Kenya. Treatment systems range from point-of-use UV and filtration units for individual households to multi-stage treatment plants for borehole water serving estates or institutions, and packaged surface water treatment plants for community water schemes. Every system is designed based on a source water quality analysis to target the specific contaminants present — not a generic package applied without data.

An Effluent Treatment Plant (ETP) treats industrial and commercial wastewater — from food processing, manufacturing, laundry, car wash, and other process operations — to reduce pollutant levels to NEMA discharge standards before the effluent is discharged to a watercourse, sewer, or soakaway. Treatment processes typically include screening, equalisation, pH correction, coagulation and flocculation, sedimentation, biological treatment, and disinfection — with the specific combination designed to target the contaminants in each facility’s specific effluent. NEMA requires ETPs for most commercial and industrial facilities generating process wastewater, with regular effluent quality testing and annual compliance reporting.

A smart water monitoring system uses electronic flow meters, pressure sensors, and tank level sensors installed at key points in a water supply network to continuously measure consumption, pressure, and storage levels. Data is transmitted in real time via GSM, Wi-Fi, or LoRaWAN wireless networks to a cloud dashboard accessible from any phone or computer. When the system detects anomalies — flow at night suggesting a leak, a pressure drop indicating a burst pipe, or a tank approaching overflow — it sends immediate SMS and email alerts to nominated contacts. Remote pump control allows borehole and booster pumps to be started, stopped, and scheduled from any smartphone anywhere in Kenya.

Yes. Leak detection works through minimum night flow analysis — any sustained flow between 2 and 4 AM when consumption should be near zero is flagged as a potential leak and an SMS alert is sent immediately. Pressure drop detection signals a pipe burst in real time. Consumption pattern analysis compares daily volume against a historical baseline and flags unexpected increases matching the profile of a developing leak. For critical applications, a motorised ball valve can be configured to automatically isolate the affected zone when a leak is detected — stopping water loss and damage without waiting for a human response.

Maji Hill installs smart monitoring using three main connectivity technologies suited to Kenya’s varied infrastructure. GSM/GPRS uses the Safaricom or Airtel cellular network, covering most of Kenya including many rural areas, and is the standard option for most sites. Wi-Fi connects to the existing property internet router for urban properties. LoRaWAN is a low-power long-range radio technology that transmits data up to 15 km to a gateway — ideal for remote farms, game reserves, and off-grid boreholes where cellular coverage is limited. LoRa sensors have battery lives measured in years. Solar-powered data loggers maintain monitoring indefinitely at off-grid sites.

For a standard single-property installation — one or two flow meters, a tank level sensor, and a GSM data logger — Maji Hill typically completes the site survey, installation, cloud dashboard configuration, and user training within one to two working days. Larger estates with multiple sub-metering points or borehole installations with remote control take two to four days depending on site access and monitoring point count. Nationwide installations at remote sites are scheduled around travel logistics and completed in a single site visit in most cases.

GIS water mapping records the precise location and attributes of all components of a water supply system — pipes, valves, meters, boreholes, tanks, and water sources — as georeferenced digital data. The resulting map allows engineers, operators, and planners to see the entire network spatially, query asset attributes, plan extensions and upgrades, model flow and pressure, and respond rapidly to faults. Without GIS mapping, water networks across Kenya are operated from memory and paper sketches — neither of which can be maintained, updated, or transferred when staff change. GIS mapping is the foundation of every operational, planning, and compliance activity in a well-managed water system.

Maji Hill delivers GIS data in all major formats to ensure compatibility with any client software environment: Shapefile (.shp) for compatibility with virtually any GIS platform; GeoPackage (.gpkg) as a modern open-format alternative; GeoJSON for web mapping and developer integration; KMZ/KML for Google Earth and Maps; and georeferenced PDF for non-GIS users. Hydraulic model files are delivered in EPANET (.inp) format and, where required, WaterGEMS format. Printed map series are provided at A0 and A1. Interactive web GIS maps are also available for county and utility clients needing web-based map access for operational staff.

Yes. Maji Hill works with county governments, county water and sanitation companies, Water Service Providers, WRMA, and development partners including NGOs and donor-funded rural water programmes. Our GIS mapping and infrastructure planning deliverables meet the documentation and compliance standards required by the Water Act 2016, WRMA, the Ministry of Water and Sanitation, and development partner reporting frameworks including UN-Habitat, UNICEF, World Bank, AFD, EU, and bilateral donors. We have experience with government procurement frameworks and can provide the professional credentials required by county and national procurement processes.

Yes. Maji Hill prepares NEMA Environmental Impact Assessments (EIA), water management plans, effluent discharge quality reports, wastewater system compliance certificates, and the spatial data required for development approvals and licence applications. We also prepare WRMA documentation for borehole abstraction licence applications and renewals. All our installations are carried out in compliance with Kenya’s Water Act 2016, EMCA, and NEMA regulations, and we issue the documentation required to demonstrate compliance at every stage of a project.

Yes. Under Kenya’s Environmental Management and Co-ordination Act (EMCA) and the Water Act 2016, on-site wastewater treatment systems — particularly for commercial, institutional, and large residential properties — require NEMA Environmental Impact Assessment documentation. Systems that discharge effluent to a watercourse or the environment require a NEMA discharge consent. Maji Hill prepares and manages all NEMA documentation as part of our wastewater system design and installation service. For existing systems that are not compliant, we carry out a compliance upgrade and prepare the required documentation to regularise the system’s legal status.

Yes. Under the Water Act 2016 and NEMA regulations, commercial, industrial, and large institutional water users are subject to water use licensing, abstraction reporting, and water management plan requirements. NEMA increasingly requires water audits and documented conservation programmes as conditions of water use licences and EIA approvals. Maji Hill prepares NEMA-compliant water management plans, annual water use reports, and the documentation required for licence applications and development approvals. Our water audit reports are formatted to meet NEMA documentation standards.

Kenya’s Water Act 2016 is the principal legislation governing water resources management and water services in Kenya. For property owners, its key implications are: boreholes require a valid WRMA abstraction licence to operate legally; commercial and industrial water users require water use licences; on-site wastewater systems must meet the effluent quality standards set by NEMA; water service providers must be licensed by WASREB; and all significant water infrastructure projects require Environmental Impact Assessments under EMCA. Maji Hill ensures all systems we design, install, and maintain meet the requirements of the Water Act 2016 and related regulations.