Hard water is a South Florida fact. Overpaying to fix it isn't.
Professional whole-home water softeners & filters — installed by licensed plumbers, at honest, flat pricing. No in-home pressure, no five-figure quotes.
Among the hardest in the U.S.
Anything above 10.5 gpg is classified “very hard.” Miami-Dade runs more than double that line.
You can see hard water working against your home.
South Florida sits on the limestone Biscayne Aquifer, so mineral hardness is permanent — not seasonal. Here's where it quietly adds up.
Scale build-up
Chalky mineral scale coats pipes, water heaters, and fixtures — shortening the life of appliances you already paid for.
Spotting & film
Water spots on glass, dull dishes, and soap that won't rinse clean are all classic signs of high mineral content.
Skin & hair feel
Many households notice drier skin and dull hair on very hard water. Softened water rinses cleaner and uses less soap.
Taste & odor
Chloramine used to treat municipal water can leave a noticeable taste and smell. A carbon filter stage addresses it at the source.
Same class of hardware. A very different price.
The big in-home-sales brands run a water test at your kitchen table and close you the same night — often for two to three times what the equipment is worth. We just tell you the number.
Culligan · RainSoft · Kinetico
- No pricing shown until they're in your home
- Same-night high-pressure close
- Long financing + service lock-in
- Proprietary parts, pricier service calls
Comparable whole-home system
- Flat price before we ever visit
- Installed by a licensed local plumber
- NSF-certified, industry-standard valves
- Financing available — no obligation
Comparison reflects equivalent-class whole-home softening/filtration systems. Premium brands may bundle proprietary media and extended service packages. Final 305 Water Co. pricing depends on your home's water source, size, and configuration, confirmed before any work begins.
Three steps. One day. Done right.
Tell us about your water
Answer a few quick questions about your home and what you've noticed. We'll match you to the right system and give you a straight price — no in-home sales visit required.
Licensed pro installs it
A licensed South Florida plumber handles the full installation, typically in a single day, to code and cleanly tied into your main line.
Enjoy softer, cleaner water
Notice the difference at every tap — cleaner rinse, less scale, better taste — backed by warranty and local service you can actually reach.
A real local company — not a Marketplace plumber, not a national call center.
Licensed & accountable
Every install is performed by a licensed Florida plumber and tied into your plumbing correctly — the part the cheap installers get wrong.
Transparent pricing
You see your number before anyone comes to your door. No “tonight only” discounts, no pressure, no theater.
Built for South Florida
Systems sized for Miami-Dade & Broward hardness and chloramine levels — not a generic national package.
Local service, real people
Warranty questions and service go to a local team you can actually reach — not a national queue.
See if your home qualifies
Questions, honestly answered
Is my water unsafe to drink?
Miami-Dade and Broward tap water meets federal and state drinking-water standards. What we address is hardness, scale, and taste/odor — the everyday effects of very hard, chloramine-treated water on your home and comfort, not a safety emergency. We'll never tell you your water is dangerous to make a sale.
How is your price so much lower than the big brands?
The legacy in-home-sales brands carry heavy commissioned sales teams and market proprietary media at a large markup. We use NSF-certified, industry-standard equipment, coordinate a licensed plumber for the install, and skip the same-night sales theater. You get a comparable-class system without paying for the pressure.
Who actually installs the system?
A licensed Florida plumber. Correct installation into your main line is exactly where budget installers cut corners, so we don't. Your system is tied in to code, tested, and left clean.
Do you offer financing?
Yes — financing is available for qualified homeowners, with no obligation. You'll always see the full cash price too, so you can decide what makes sense for you.
What areas do you serve?
We're launching across Miami-Dade and Broward, expanding through South Florida. Drop your ZIP in the form above and we'll confirm availability for your address.