Same-Day Service

Honest Pricing

Quality Work

100% Satisfaction Guarantee

Hawaii

Water Filtration Systems Across Hawaii

Fast, reliable service, done right the first time.

Whole-home and point-of-use water filtration installed on Oahu, Maui and the Big Island, matched to what is actually in your water.

Call (808) 466-0000

Same-Day Service

Licensed & Insured

5-Star Rated

Get a Free Estimate

Same-day response. No obligation, just honest answers.

Consent(Required)
Marketing Consent

We respect your privacy. Your info is never shared.

Limited Time Offer

$50 OFF

Any Plumbing Service

All Aloha Plumbing service van

Use Code

ALOHA50

Claim Offer

Water that tastes of chlorine, smells off, leaves white spots on dishes or turns cloudy after a heavy rain is telling you something about your supply. All Aloha Plumbing installs whole-home and point-of-use water filtration systems on Oahu, Maui and the Big Island. We are a family-owned, licensed and insured plumbing company, Hawaii contractor license CT-36812, and we size each system to the water your home actually receives instead of selling a one-size package.

What a Filtration System Can Remove

Different filter media target different problems, so the first step is deciding what you want out of the water. A properly matched system can reduce:

  • Chlorine, the cause of most taste and odor complaints on public water.
  • Sediment such as sand, silt and rust flakes that wear out valves and clog aerators.
  • Iron, which leaves orange stains in sinks, tubs and showers.
  • Excess minerals that form scale and white residue on glassware and fixtures.
  • Bacteria, a real concern for homes on rainwater catchment.
  • Trace contaminants such as arsenic, which call for specific media or reverse osmosis.

Choosing the Right Type of System

No single filter does everything. Each method has a specific job:

  • Sediment filters catch particles and protect everything downstream, so they are usually the first stage.
  • Activated carbon reduces chlorine and many organic compounds, which improves taste and smell.
  • Reverse osmosis pushes water through a fine membrane and removes a wide range of dissolved contaminants. It is most often installed under the kitchen sink for drinking and cooking water.
  • UV disinfection inactivates bacteria and other microorganisms but does not remove particles or chemicals, so it is paired with sediment and carbon stages.

A whole-home system treats every tap, shower and appliance. A point-of-use unit treats a single fixture. Many households combine the two, with a whole-home carbon system for bathing and laundry and reverse osmosis at the kitchen sink.

How Water Filtration Differs by Island

Where your water comes from shapes the system we recommend, and that changes from one island to the next.

  • Oahu: Most calls from Honolulu, Kailua, Kapolei and Mililani involve chlorine taste and sediment, and older homes with galvanized pipe often benefit from a sediment stage that catches rust. Condo owners in high-rises tend to choose compact point-of-use units. Learn more about water filtration on Oahu.
  • Maui: Homes in towns like Kahului, Kihei and Wailea usually want better taste and cleaner fixtures, while rural properties upcountry around Kula, Makawao and Haiku may rely on catchment and need sediment plus UV. Vacation rental owners often ask for low-maintenance setups with simple cartridge changes. Learn more about water filtration on Maui.
  • Big Island: Rainwater catchment is more common here, which makes multi-stage filtration and disinfection a priority for many homes around Hilo, Pahoa and rural areas. Because the island is large, arrival windows vary by location. Learn more about water filtration on the Big Island.

What Installation Involves

We start by asking what you notice in your water and, when it helps, recommending a water test so the system targets real contaminants. Next we choose a location, usually near where the main line enters the home for a whole-home unit or under the sink for reverse osmosis. We add shutoff and bypass valves so filters can be serviced without cutting water to the house, then check every connection for leaks. Before we leave, we show you how to change cartridges and how often to plan for it. Some installations may require a permit, and we will tell you if yours does.

Benefits You Notice Day to Day

  • Better tasting water for drinking and cooking
  • Less reliance on bottled water
  • Fewer spots and less residue on dishes and laundry
  • Less sediment reaching your water heater, valves and appliances
  • Less chlorine in the shower

Every job comes with upfront pricing you approve before work starts, and financing is available. We also offer senior and military discounts and $50 off any plumbing service. Visit the page for your island above for local details, or call the number at the top of this page. A real plumber answers 24/7.

Need Water Filtration System on Hawaii?

A real plumber answers 24/7. Average island response: under 30 minutes.

Call (808) 466-0000

Need Help Now?

Plumbers on call 24/7 across Oahu, Maui,
and the Big Island.

Call (808) 466-0000

Our Services

Our Work

Recent Jobs Island-wide

All Aloha Plumbing drain cleaning equipment at a job site
Two All Aloha Plumbing technicians handling a hydro jetting machine at a job site
All Aloha Plumbing technician inspecting plumbing under a cabinet
All Aloha Plumbing team beside a branded company van
Quick Answers

Good To Know

Do you install water filtration systems on all three islands?

Yes. We install whole-home and point-of-use filtration systems on Oahu, Maui and the Big Island. Our Oahu team is based in Waipahu and our Maui team works out of Makawao, and we also serve homes across the Big Island. Because the Big Island covers so much ground, arrival windows there vary by location, so we confirm timing when you book.

Which water filtration method works best?

It depends on what is in your water. Carbon handles chlorine taste and odor, sediment filters catch particles, reverse osmosis removes a broad range of dissolved contaminants, and UV disinfects without filtering. Most homes do best with two or three stages working together. A water test is the most reliable way to choose, and we can help you decide what to test for.

Should a home on rainwater catchment have a filtration system?

Yes. Filtration is one of the most important upgrades for a catchment home. Rainwater picks up debris from roofs and gutters and can carry bacteria, so a typical setup uses a sediment filter first, then carbon, then UV disinfection. Catchment is more common on the Big Island and in rural Maui, and we plan each system around your tank, pump and fixtures.

Real Customers • Real Stories

What Our Ohana Says

5 star rating quote

“All Aloha came out super fast and fixed our leak the same day. Excellent service! These guys are real pros and treated my home with respect.”

HBM

Hawaii Bottle Man

Honolulu, Oahu

5 star rating quote

“They replaced our water heater quickly and left everything spotless. The crew showed up exactly when they said they would. Couldn’t ask for better.”

RC

Ray Cabanting

Kailua, Oahu

5 star rating quote

“Called at midnight with a burst pipe. They were here in 25 minutes and had it contained before the ceiling came down.”

TT

Thai Tran

Kapolei, Oahu

View All Reviews

Flexible Financing To Fit Your Budget

Get the work you need today and pay over time with easy monthly payments.

Explore Financing
More Ways To Save

Coupons and offers

Limited Time

$50 OFF

Any Plumbing Service

Use code ALOHA50
Claim Offer

Military & Senior

10% OFF

Every Service, Every Time

Just mention it
Claim Offer

New Customers

$25 OFF

First Service Call

Welcome to the ohana
Claim Offer

Water Heaters

$100 OFF

Any Water Heater Install

Old tank hauled away
Claim Offer
Proudly Serving

Three Islands. One Family.

From the North Shore to Hilo, we’re proud to bring honest plumbing with aloha to homes across Hawaii.

bg img
Maui

Maui

Kahului • Lahaina • Kihei • Wailuku

Oahu

Oahu

Honolulu • North Shore • Kailua

Big Island

Big Island

Kailua-Kona • Hilo • Waimea

Trusted. Licensed. Recommended.

Google rating 5.0 stars
Need a plumber?

Aloha Help Is One Call Away.

Don't let a plumbing problem ruin your day. Our local crews are standing by across all three islands, same-day service, upfront pricing, and quality work guaranteed.

5.0 ★

2,400+ Reviews

Licensed

& Insured

24/7

Available

100%

Satisfaction

Tap to Call Now (808) 466-0000

Pick a time that works for you, takes about 30 seconds.

OR

Book Online Schedule Online

A real plumber answers, no menus, no waiting.

Average response across all three islands: under 30 minutes

Licensed · Insured · Backed by Aloha

All Aloha Plumbing service van
(808) 466-0000