Solutions to water problems

Water Treatment Solutions

It is paramount that you have a quality water supply that is fit for purpose. Gran Maintenance not only specialise in borehole drilling but also design and build water treatment plants to suit your needs, whether it’s for agricultural, industrial or domestic purposes. Our expertise ensures your water meets drinking water standards and is also tailored to your specific water quality requirements.

If you already have a borehole

If you have an existing borehole that needs treatment, we will carry out laboratory water analysis to ensure that the treatment plant we design for you meets your requirements.

Are you Stuck in the rut?
• You have a reliable water source but you cannot stand the saltiness, hardness, softness, the color, the smell, you are simply not enjoying your water?
• You are a regular customer of bottled water from the supermarket and you feel you need an alternative with the same standard or even better?
• You like the municipal water but just want to be sure it is free from bacteria?
• You come out of your bathroom white everywhere or your soap never foams you are simply not enjoying your bath?

Customized Solution is here!


We design solutions to our customers as per their individual needs.
• We collect your water for laboratory analysis or if you have an existing one simply send to us.
• We come back to you with proposals on how to manage your problem
• We design a system for you and one you prefer
• We install it
• We collect final water for another laboratory test
• If you are alright we are happy too after installation

Filtration Units


Reverse Osmosis (RO) Systems –Under the sink


Reverse Osmosis (RO) - Industrial

German Water Technologies GWT

GWT is the Best water treatment system ever developed. It is an automatic water disinfection and control system which ensures ZERO infection in your tap water system and ZERO energy consumption during the process.


ZERO chemicals added.


Gives you clean portable water many times cheaper than bottled water and wholesome water not stripped of essential minerals.


Highly suitable for
• Apartments
• Schools
• Hospitals
• Hotels
• Resorts
Bulk water users.

Waste Water Solution

Talk to us if any of the following applies to you:-
1. You are tired of sewage exhausters coming to your residence every time and again.
2. You are planning to build either a single dwelling home or multi dwelling apartments out of the municipal sewer system
3. You do not like your smelling septic tank
4. Neighbor wants to take you to NEMA because your waste is a nuisance.


We install quality waste water Biodigester system for domestic and commercial purposes.
Call us for a presentation Domestic & Commercial Solutions To Water Quality Problems
German Water Technologies GWT Waste Water Solution

For a no-obligation discussion, please call our office on
+254 (20) – 2062030 call Mr. Okwach on +254 722 890 813, alternatively
email granwater@gmail.com