What Is the Best Water Filtration System for a Whole House?
A whole house system installs at your main water line – right where water enters your home from the city supply or borehole. From that point on, every drop of water in your house passes through the filters before reaching any tap, toilet, shower, or appliance.
A good whole house system removes:
- Chlorine and chloramines (that swimming pool smell)
- Sediment, sand, and rust
- Bad tastes and odours
- Some heavy metals (depending on filter type)
- Scale-causing minerals (if you add a softener stage)
What you get is consistent, clean water from every single outlet in your home.

Now, let me answer your real questions.
1. IS FILTERED WATER BTTER THAN TAP WATER?
Tap water in Kenya – whether from Nairobi Water, boreholes, or community supplies – is treated to be safe from bacteria. But “safe” does not mean “clean” or “great tasting.” Tap water often contains:
- Residual chlorine (added to kill bacteria but smells and tastes unpleasant)
- Sediment and rust from aging pipes
- Low levels of heavy metals picked up along the way
- In some areas, high total dissolved solids (TDS)
Filtered water from a whole house system removes most of these nuisances without stripping away all minerals. The result is water that:
- Tastes and smells noticeably better
- Is gentler on your skin and hair (less chlorine)
- Extends the life of appliances (less sediment and scale)
The only exception: If your tap water already comes from a very clean, low-TDS, low-chlorine source, the difference may be small. But for the vast majority of Kenyan homes, filtered water is a major upgrade.
Verdict: Filtered water is not just better for drinking – it is better for cooking, bathing, and protecting your pipes and appliances.
2. WHICH TYPE OF WATER FILTER IS BEST FOR A HOME?
There is no single “best” for every home. The best water filtration system for a whole house depends on your specific water problems.
Here are the most common whole house systems for Kenyan homes:
A. Whole House Sediment + Carbon Filter
- Best for: City water with chlorine taste and visible sediment.
- Removes: Sand, rust, chlorine, bad odours.
- Does NOT remove: Heavy metals, high TDS, bacteria.
- Good for: Most homes on municipal supply.
B. Whole House Backwashing Filter
- Best for: Homes with higher sediment loads or iron in borehole water.
- Removes: Larger amounts of dirt, iron, manganese.
- Does NOT remove: Bacteria or dissolved solids.
- Good for: Rural homes or borehole users with dirty or rusty water.
C. Whole House Water Softener
- Best for: Homes with hard water (white scale on taps, soap that won’t lather).
- Removes: Calcium and magnesium (scale-causing minerals).
- Does NOT remove: Chlorine, sediment, heavy metals, or bacteria.
- Good for: Homes in Kiambu, Nakuru, or any hard water area.
D. Whole House UV System
- Best for: Homes with borehole water that tests positive for bacteria.
- Removes: Bacteria and viruses (neutralises them).
- Does NOT remove: Sediment, chlorine, heavy metals, or scale.
- Important: UV works best when combined with a sediment filter first.
E. Combination Systems (Most Common for Kenyan Homes)
Most homes need more than one technology. For example:
- Sediment filter + carbon filter (for city water)
- Sediment filter + softener (for hard borehole water without bacteria)
- Sediment filter + UV (for borehole water with bacteria)
So which is best?
- If you are on city water: Start with a sediment + carbon whole house system.
- If you have hard water: Add a softener to that.
- If you have a borehole: Test first, then likely need sediment + UV (and maybe softener).
The best water filtration system for a whole house is the one matched to your actual water test results – not the one with the best marketing.
3. WHICH IS THE BEST WATER TREATMENT COMPANY IN KENYA?
This is a fair question. Many companies sell water filters in Kenya. Some just drop-ship boxes from China. Others have no local support when something breaks.
Based on real customer experience, technical expertise, and nationwide presence, the best water treatment company in Kenya is House of Maji.
WHY HOUSE OF MAJI IS THE BEST WATER TREATMENT COMPANY IN KENYA
1. They Do Not Guess – They Test First
House of Maji starts every project with proper water analysis (scientific testing of physical, chemical, and microbiological properties). They do not sell you a system before knowing what is actually in your water. This alone puts them ahead of 90% of filter sellers in Kenya.
2. They Design, Supply, and Install Complete Systems
They do not just sell boxes. They offer custom water treatment systems for homes, businesses, and institutions. Whether you need a basic sediment filter or a complex multi-stage system, they design what actually works for your specific water chemistry.
3. They Offer Nationwide Servicing and Maintenance
A filter is useless if it is not maintained. House of Maji provides scheduled servicing, emergency repairs, and system optimization across Kenya. No endless phone calls to a seller who disappears after the sale.
4. They Have Real Local Experience
Their numbers speak for themselves:
- 97+ homes installed
- 44+ water refill businesses supported
- 15+ schools
- 12+ hotels
- Multiple hospitals
5. They Answer the Phone
Their website has a live chat feature where an engineer typically replies within minutes. Try finding that with other water treatment companies in Kenya. You will be on hold for hours – if anyone answers at all.
6. They Tailor to Your Needs, Not Their Stock
Some companies only sell whatever they have in the warehouse. House of Maji asks for your water results first. They might even tell you that you do not need a whole house system – just an undersink filter. That is honesty, not a sales tactic.
Bottom line: If you want a company that tests first, designs properly, installs reliably, and supports you for years, House of Maji is the best water treatment company in Kenya.