Private Well Water
Wells aren't treated by a municipal plant, which means bacteria and other microorganisms aren't automatically removed. This system is one of the most effective safeguards available.
Home / Systems We Install / Prefilter + UV Sterilizer
Ultraviolet Sterilizer Systems for Philadelphia Area Homes
Chemical-free disinfection that destroys bacteria, viruses and protozoa in seconds — the essential final step for well water and any home that wants true peace of mind.
How It Works
Sterilization Without a Single Chemical
A sediment prefilter strains out sand, rust flakes and particulate before water passes under concentrated UV-C light in a sealed stainless steel chamber. That light disrupts the DNA of microorganisms — bacteria, viruses and protozoa — so they can no longer reproduce or cause illness. No chlorine, no added taste or odor, no chemical byproducts.
It's fast-acting, low-maintenance (an annual bulb replacement is typically all it needs), and works continuously as water passes through your home's main line.
- Destroys E. coli, coliform bacteria and other pathogens
- Eliminates protozoa like Cryptosporidium and Giardia Lamblia
- Sediment prefilter protects the UV chamber and extends bulb life
- No chemical taste, odor, or residue
See It In Action
Watch the Contaminants Get Removed
Two stages, one job: strip out what UV can't reach, then disinfect everything else.
Sediment Prefilter
UV-C Chamber
Disinfected Water
Is This For You?
Ideal For...
Lake & Cottage Water Supplies
Any non-municipal water source — a lake, spring, or cistern — benefits from continuous UV disinfection to guard against contamination.
Extra Peace of Mind
Even on municipal water, homeowners recovering from a positive water test or simply wanting a final layer of protection choose this system as cheap insurance.
Excalibur offers UV systems from the Optimum Series through premium Signature Series models, sized to your home's flow rate — we'll help you pick the right one after testing your water.
Not Sure If You're on Well or Municipal Water?
We'll test your water and tell you exactly what it needs — no guesswork, no pressure.
FAQ
Prefilter + UV Sterilizer Questions, Answered
If your home uses a private well, a UV sterilizer is one of the most effective ways to protect against bacteria, viruses and protozoa that municipal treatment plants would normally remove. Many mortgage lenders and local health departments also recommend or require water testing (and sometimes UV disinfection) for well water before closing on a home.
Sand, rust flakes and other particulate can shield microorganisms from UV light and cloud the water passing through the chamber, reducing disinfection effectiveness. The prefilter strains that material out first so the UV-C light can do its job on every drop.
No. UV sterilization uses ultraviolet light to destroy the DNA of microorganisms so they can't reproduce — there's no chlorine or chemical residue added to your water.
A whole-home UV sterilizer is installed at your main water line, after the sediment prefilter, so every fixture in your home receives disinfected water — not just a single faucet.
The best way to know is a free in-home water test. If you're on well water, or you've had a positive coliform/E. coli test, this system is almost always worth adding.
Explore More
Complete Your Water Treatment System
Reverse Osmosis & Drinking Water
Pair UV disinfection with an RO system for the purest possible drinking water at your kitchen tap.
Learn MoreChlor-A-Soft® Water Softeners
Combine UV with a whole-house softener and filter for complete protection against hardness, chemicals and pathogens.
Learn More