Halo 5 Water Filtration

What’s in Your Water?

 

No Hot Water? No Problem. Call the Water Heater Professionals at Castleworks Today!

HALO 5 Whole Home Water Filter System

Superior Water Quality for Every San Diego Room

San Diego’s notoriously hard water can affect your plumbing, appliances, skin, and taste—but the HALO 5 Whole House Water Filtration System solves these issues at the source. It treats all incoming water so every sink, shower, and appliance in your home benefits from cleaner, softer, better-tasting water.

Five-Stage Advanced Water Treatment

The HALO 5 delivers comprehensive filtration through a state-of-the-art system:

  1. Pre-Filter – Eliminates rust, dirt, and sediment
  2. Activated Carbon – Absorbs chlorine, chloramines, pesticides, and VOCs
  3. Filter-AG Plus® – Removes smaller particulates
  4. Conditioning Media – Addresses hard water without chemicals or salt
  5. Final Polishing – Produces fresh, crisp water from every tap

Built for regions with heavy mineral content like San Diego.

CastleWorks San Diego: Certified HALO 5 Installers

Your installation is handled by local experts who:

  • Test your home’s water quality
  • Recommend the right HALO setup
  • Provide professional installation
  • Remain available for service and support

From start to finish, CastleWorks ensures your system performs at its best.

Enjoy the HALO 5 Advantage

With your new filtration system, you’ll notice:

  • Better-tasting, odor-free water
  • Softer-feeling showers
  • Reduced scale and mineral buildup
  • Cleaner laundry and spot-free dishes
  • Longer-lasting plumbing and appliances
  • Minimal system maintenance

Contact CastleWorks San Diego to upgrade your home’s water today.

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PDSOCAL
4 September 2026
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Have to say Anthony was really the best. Knew exactly what needed to be done and did it right! Special thanks to him.
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Jason Ritchie
31 August 2026
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Chris Dohrer performed an inspection of our water heater leak and was very helpful in understanding next steps in the context of an upcoming remodel we have. Thanks Chris!
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Chadwick Marrs
29 August 2026
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Chris Dohrer was very professional
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Scott Blacklock
25 August 2026
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Had to haggle the price a bit, nothing unexpected. Showed up with a replacement unit on the truck. Excellent work. Patient and thorough.
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Julie Moody
23 August 2026
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Castle Works has fantastic employees and service. They give you a returning customer discount and Or Military discount that make price’s affordable. I talked with Jessica who was friendly from the moment she answered the phone and she got a professional technician to come out to the house within an hour an 1/2. Miguel was amazing! He checked everything thing out before quoting us a price. He had everything in his truck! We didn’t have to wait until a week day to replace the tank! His work was extremely clean and time efficient. He explained everything! Everything is up to code too now! Hope not to see you for another ten years! We got 13year on our last one! However, if something does go wrong I’m calling you guys! Thank you, Castleworks! Your a top notch Company!
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Advik Magesh
23 August 2026
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Chris Doherty did a great job installing our brand new water heater
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max5959
22 August 2026
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Very good and professional job
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Jennie Ho
15 August 2026
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CastleWorks is a great company with a great staff, beginning with the gentleman, Joshua, who answered our call to the young lady who called us to let us know that their technician, Chris Dohrer, was on his way. Chris explained everything simply and clearly to my husband and me, and told us what our options were. Chris is a hard-working, kind, and cheerful young man. He did everything that he said he would, and left everything in a neat manner. He put our old water heater in a place out-of-the-way and said that the service technician who was coming on Monday to put in the new tankless water heater would take the old one away because their truck had more room. We would highly recommend CastleWorks Water Heaters to others who need theirs replaced or repaired. They have a great team working together.
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Toshihide Kadota
13 August 2026
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excellent work and technically very high level of plumbing.
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Lorena Wingard
30 July 2026
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The technician was very professional and helpful. We are grateful

HALO 5 Whole-House Water Filtration Explained

The HALO 5 whole-house water filtration system is designed to improve the quality of water used throughout your entire home. Installed at the main water line, the system treats water before it reaches faucets, appliances, and fixtures—ensuring cleaner, better-tasting water for drinking, bathing, cleaning, and laundry. By combining five advanced filtration stages with ion conditioning technology, the HALO 5 addresses common water quality concerns at the source.

Five-Stage Filtration Process

Each stage of the HALO 5 system plays a specific role in water treatment:

  1. Activated Carbon Filtration – The first stage targets chlorine, chloramines, chemical disinfectants, volatile organic compounds (VOCs), and certain heavy metals commonly found in municipal water supplies.
  2. High-Activity Carbon Media – This layer further enhances chlorine reduction across a wide pH range while significantly improving water taste and odor.
  3. Filter-AG Plus® Media – Designed to outperform traditional sediment filters, this stage removes dirt, sand, rust, and particulate matter that can damage plumbing and appliances.
  4. High-Density Garnet Media – Garnet filtration captures fine particles that may pass through earlier stages, improving water clarity and protecting downstream systems.
  5. HALO Ion Inline Water Conditioner – The final stage uses magnetic conditioning technology to alter mineral behavior in water, helping reduce scale buildup and minimize chlorine by-products inside plumbing systems.

No Hot Water? No Problem. Call the Water Heater Professionals at Castleworks Today!

We Offer Financing For Any Budget

Comfort, Efficiency & Savings. You can have it all!

HALO 5 System FAQs

What are the Maintenance Requirements?

The HALO 5 is engineered to be maintenance-free, with no filters requiring regular replacement. Professional installation ensures proper setup and performance.

What About System Longevity?

For an average household, the carbon media typically lasts 8–10 years using an average of 146,000 gallons of water a year. The system is backed by a lifetime limited warranty covering major components.

What are Its Commercial Applications?

HALO systems are frequently installed in restaurants, hotels, healthcare facilities, irrigation systems, and other commercial environments that depend on consistent water quality.

How Does it Protect Household Appliances? 

Because the HALO 5 treats water at the point of entry, all appliances benefit from filtered water. Reduced sediment and scale buildup can help extend the lifespan of water heaters, dishwashers, washing machines, coffee makers, and ice machines while improving overall efficiency.

Water Quality & Health Considerations

Hard water minerals may contribute to dry skin, brittle nails, and dull hair. According to the National Eczema Association, mineral-heavy water may aggravate eczema symptoms in sensitive individuals.

Excess fluoride exposure has been associated with enamel discoloration, skeletal issues, and potential neurological effects when consumed at elevated levels over time.

PFAS—often referred to as “forever chemicals”—are persistent compounds linked to hormone disruption, immune system changes, cholesterol levels, and pregnancy-related health risks.

Unpleasant taste or odor in tap water is often caused by organic matter, aging pipes, or mineral content, all of which can be improved through whole-house filtration.

Contact CastleWorks to learn more about installing a HALO 5 system in your home.

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