
Multifamily Housing Water Treatment Solutions
We specialize in custom, skid-mounted commercial water treatment for apartment buildings and condos, focusing on maximum uptime, fast installation, and adherence to water standards for multifamily properties.

About Our Custom-Engineered Water Treatment for Multifamily Properties & Commercial Real Estate
For over 65 years, Robert B. Hill Co. has been engineering custom water solutions for multifamily environments where water quality is the difference between a renewed lease and a cascade of maintenance requests.
Commercial multifamily water requires a dual approach: it must provide premium comfort for your residents while actively protecting your high-value mechanical assets behind the scenes.
Whether you are managing the central cooling towers of a downtown high-rise or require high-purity water for a luxury clubhouse, our engineers design custom, skid-mounted systems that deliver 24/7 consistency.
We focus on maximizing your equipment’s lifespan, slashing utility overhead, and elevating your property’s value through smarter water chemistry.
Our Multifamily Water Treatment Services
Our engineers partner with your facility management team to conduct a comprehensive on-site survey, analyzing your incoming water quality, fixture counts, and peak flow requirements.
From there, we design a custom-engineered solution specifically for your mechanical room’s footprint. We provide end-to-end water treatment services to ensure your property operates at peak efficiency:


Commercial Water Softening
Hard water is a massive liability for property managers. It destroys in-unit dishwashers, clogs showerheads, and coats central boiler elements in an insulating layer of scale, driving up energy costs.
A centralized commercial water softener for apartment buildings removes calcium and magnesium at the point of entry. This extends the life of every water-using appliance in your building, slashes your utility bills, and drastically reduces the number of plumbing-related maintenance calls your team has to answer.
Point-of-Entry Water Filtration for Housing
City water can carry sediment, chlorine odors, and turbidity that trigger resident complaints and negative reviews. A robust whole-building water filtration system acts as the first line of defense.
By utilizing advanced carbon filtration, we remove chlorine taste and odor before it reaches the units.
Offering “filtered water from every tap” is a highly sought-after amenity that leasing agents can use to justify premium rental rates and improve tenant retention.


Commercial Reverse Osmosis (RO)
While whole-building RO is rarely necessary, localized Commercial Reverse Osmosis systems are perfect for your property’s high-end amenities.
We install these high-purity systems to feed resident coffee bars, fitness center hydration stations, and clubhouse kitchens, ensuring crystal-clear ice and delicious-tasting beverages that rival any luxury cafe.
Advanced Contaminant & Safety Mitigation
With 2026 EPA regulations enforcing stricter limits on municipal contaminants like PFAS (“forever chemicals”), ensuring the safety of your property’s domestic water is a major liability concern.
We integrate advanced absorptive media and UV sterilization to target emerging contaminants and prevent microbial growth in large, centralized plumbing loops.

Why Robert B. Hill?
Discover why we’re trusted by many!
Trusted Provider
We have earned the trust of America’s water industry for over 65 years.
Custom Solutions
We build exactly what your facility needs — no more, no less.
Highly Trained Team
Our experts will help you test, size, and install your system. We’re proud to have an A+ rating with the Better Business Bureau.
Engineered Water Solutions for Multifamily Properties
In the multifamily real estate sector, water quality directly impacts your net operating income and tenant satisfaction.
We engineer custom, skid-mounted systems designed to protect your capital investments, reduce costly maintenance calls, and elevate the resident experience.
We work with the following types of commercial properties:


High-Rise Apartments & Condominiums
We prioritize central infrastructure protection. Our high-capacity systems protect massive central boiler feeds, cooling towers, and booster pumps from scale, ensuring consistent pressure and temperature for hundreds of units.
Garden-Style Apartment Communities
These sprawling complexes often rely on decentralized water heaters. We provide localized softening and filtration solutions that protect in-unit appliances and reduce the frequency of maintenance tickets for clogged showerheads and failing water heaters.


Luxury & Class-A Properties
High-paying tenants expect premium amenities. We design whole-building filtration systems that provide bottled-quality water from every tap, serving as a powerful marketing tool for leasing agents.
Senior Living Communities
Domestic water safety is the top priority. We focus on advanced filtration and circulation to prevent Legionella in central loops and ensure the highest water purity for vulnerable residents.
Learn more about multifamily water management solutions by reading this article.

Ready to Find Your Multifamily Water Treatment Solution?
We understand that choosing the right water treatment solution for your apartment building or condominium is both important and overwhelming. We’re here to help.
Reach out for a no-pressure consultation today.
Multifamily Water Treatment FAQ
How do you size a central water softener for a 300-unit apartment building?
Sizing a multifamily system requires engineering precision. We calculate your property’s maximum Gallons Per Minute (GPM) during peak draw times (the morning and evening rushes). We use fixture unit counts (WSFU), assess your central vs. decentralized heating systems, and conduct an on-site survey to ensure the system handles peak capacity without causing a drop in tenant water pressure.
What is the ROI of installing a water softener in an apartment complex?
The ROI is typically realized through reduced CapEx and lower operational costs. A central softener prevents scale buildup, which restores the energy efficiency of your central boilers and cooling towers. Additionally, it significantly extends the lifespan of in-unit water heaters, dishwashers, and laundry machines, saving property owners thousands in premature appliance replacements and labor costs.
Will a whole-building filtration system help with leasing and tenant retention?
Absolutely. In 2026, renters are highly conscious of their water quality. Installing a whole-building carbon filtration system eliminates the harsh chlorine taste and smell from city water. Leasing agents actively market this as a premium building amenity (“Filtered Water Standard in Every Unit”), which attracts health-conscious tenants and justifies higher rental rates.
Can you install a custom water system in an older high-rise?
Yes. Retrofitting older properties is one of our specialties. Because we engineer and build our systems on custom structural skids at our facility, we can design modular or compact systems that fit through standard commercial doorways and into tight, legacy mechanical rooms. This “plumb-and-play” approach drastically minimizes water shut-off times for your residents during installation.
How do we prevent Legionella and biofilm in our centralized domestic water loops?
In large multifamily buildings, water can sit stagnant in “dead legs,” creating a breeding ground for biofilm. We help mitigate this risk by designing systems with high-efficiency recirculation loops and integrating UV-C sterilization. This ensures water is constantly moving and treated, keeping your property compliant with ASHRAE 188 guidelines and protecting your residents from waterborne pathogens.