Water Softeners, Whole-House Filtration & Reverse Osmosis in Fresno & Clovis
Free in-home water test. Written price the same visit. Tested, sized and installed by Nick — a local owner-operator, not a sales rep.
- Free in-home water test — you see what's in your water, on the spot
- Written price, same visit — no pressure, no surprise add-ons
- Installed in about a day — clean copper work, no mess left behind
- RO service & filter changes welcome — most brands, same-week

BeforeAfterA real Fresno customer's kitchen. Left: straight from the tap. Right: the next morning, after Nick's install. Photo and message shared with permission.
Your water, before and after. In your own glass.
You don't have to take our word for it. The free test shows you exactly what is in your water, and the difference after install is something you can see, taste and feel in the shower.
“Ya it's legit.” — what the customer texted Nick with that photo, the day after the install.
Does this sound like your house?
Fresno and Clovis water runs hard in most neighborhoods. These are the things homeowners call Nick about — any one of them is worth a free test.
Sound familiar? Call (559) 795-4083 — Nick will test your water free and tell you what it actually needs.
The right system for your water — not a package off a shelf.
Every home's water is different. We test first, then install only what your water actually needs. Systems by California Honest Water Co, installed and warranted by Nick.

Water Softeners
Stops the scale, protects your water heater and appliances, and makes soap actually rinse off. Smart metered valve, USA-made softening resin.
- Whole-house soft water from every tap
- Metered regeneration — uses salt only when needed
- Salt-free conditioner option

Whole-House Water Filtration
Filtered at the point of entry, so every tap, shower and appliance in the house gets clean water. Coconut-shell carbon for chlorine, chemical taste and odor.
- Chlorine and chemical taste out of every tap
- Pairs with a softener as one complete system
- NSF-certified filtration media

Reverse Osmosis Drinking Water
Bottled-quality drinking water straight from your kitchen tap. Multi-stage reverse osmosis with alkaline remineralization, tankless 800 GPD option.
- No more hauling cases of bottled water
- Alkaline stage adds the minerals back
- Dedicated faucet, quick-connect fittings

RO Service, Filter Changes & Repairs
Already have a reverse osmosis system? Nick services and re-cartridges most brands, fixes slow flow and leaks, and replaces units that are past saving.
- Filter and membrane changes
- Slow flow, leaks, bad taste
- Straight answer: fix it or replace it

Well Water Treatment
Nitrate, iron and sediment treatment for wells in Madera and the county. We test the well first and build the treatment around what's actually in it.
- Free on-site well water test
- Iron, sediment and nitrate removal
- Softening for hard well water

Under-Sink Drinking Water Filters
Compact under-sink drinking water systems for renters, condos and smaller homes. Clean drinking water at the kitchen tap without touching the rest of the house.
- Installs in a couple of hours
- Great for renters and smaller homes
- Upgrade to full RO any time
The best pricing in the Valley — and you'll get it in writing.
Nick is running his best pricing of the year on complete whole-home systems, softeners and reverse osmosis drinking water. No coupon, no gimmick: call, get your number, and decide on your own time.
- Free in-home water test — a $149 value, no obligation
- Written price the same visit — nothing gets installed until you say yes
- Installed in about a day — usually within the week
- 100% satisfaction guarantee on the installation, plus the manufacturer's warranty on every system
Call for your number
Nick gives you the special pricing over the phone or at the free test — whichever you prefer.
Three steps. About a week, start to finish.
You call or text
Nick picks up or calls you back the same day, and picks a time that works — evenings and weekends included.
Free test at your kitchen sink
About 20 minutes. You see hardness, TDS and chlorine in your own water, and you get a written price for the exact system it needs.
Installed in about a day
Clean copper work, no mess left behind. 100% satisfaction guarantee on the install, plus the manufacturer's warranty on the system.
Rated 5.0 on Google and 4.9 on Yelp.
Fresno Water Pros is the water division of Central Valley Home Upgrades, Nick's Fresno contracting company. These are his real customer reviews, word for word.
We had an excellent experience with Central Valley. Nick was responsive and helpful. His quote was less than half what a competitor quoted! Evan came to the house prepared for a replacement but was actually able to fix the problem within just a few minutes. I will definitely call again with any future needs. We highly recommend this company!
Nick came out and explained things very well. His crews came out and did the roof and dry wall repair. Very professional, on time and they cleaned up all the debris. Gave me a quote which was less than the other companies. They are also available on the weekends, which is a huge plus since I work. When you have questions and you texted Nick, he was very responsive. Overall, I'm very pleased with the service. Definitely recommend them, you won't be disappointed for sure.
Nick is very professional and someone you can trust. His variety of services, competitive pricing, and communication/responsiveness make him a pleasure to work with. Highly recommend!

One owner. One standard.
Nick Alvarado owns Central Valley Home Upgrades and does the water systems himself. You're not getting a call center, a rotating crew or a commissioned salesman with a tablet. You get the guy whose name is on the truck — the same one who tests your water, gives you the price and does the install.
Systems by California Honest Water Co. Smart metered valves, USA-made resin, coconut-shell carbon and NSF-certified media — installed and warranted by Nick.
The things people ask before they call.
Is the water test really free?
Yes. Nick tests your tap water at your kitchen sink, shows you the results on the spot and leaves you a written price. It takes about 20 minutes and you are not obligated to buy anything.
What is the September Special?
The best pricing in the Valley on a complete whole-home system, a softener or a reverse osmosis drinking water system, installed. Call for your number — Nick gives it to you on the phone or in writing at the free test, and there is no pressure either way.
Is Fresno and Clovis water actually hard?
It depends on which wells feed your street. The City of Fresno's own 2024 water quality report lists hardness from 65 to 190 mg/L — that is roughly 4 to 11 grains per gallon, from 'moderately hard' to 'very hard' on the USGS scale. Clovis reports a range up to 290 mg/L (about 17 grains). The free test tells you exactly where your house sits. See the real numbers →
Can I get just reverse osmosis drinking water, or just a softener?
Yes. Reverse osmosis drinking water and under-sink filters can be installed on their own, or bundled with a whole-house system. We size it to what your water needs, not to a package.
Do you service reverse osmosis systems you didn't install?
Yes — most brands. Filter and membrane changes, slow flow, leaks, bad taste. Nick will give you a straight answer on whether it's worth fixing or time to replace.
How long does installation take?
Most whole-home systems are installed in about a day. Reverse osmosis and under-sink systems take a couple of hours. Usually we can schedule within the week.
What warranty do I get?
A 100% satisfaction guarantee on the installation itself, plus the manufacturer's warranty on every system. Nick walks you through the exact terms in writing before anything is installed.
Do you work on well water?
Yes. Wells around Madera, Sanger, Kerman and the county often carry iron, sediment and nitrate that city water doesn't. We test the well first and build the treatment around what's actually in it.
Get your free water test
Call, text, or leave your number. Nick calls back the same day.
- Free in-home water test — hardness, TDS, chlorine, pH. You watch the numbers come up in your own kitchen.
- Written price the same visit — nothing gets installed until you say yes.
- Installed in about a day — usually within the week.
- 100% satisfaction guarantee on the install, plus the manufacturer's warranty on every system.