Top-Rated Water Treatment System Pros Near You in San Leandro, CA

All-Point Solutions Plumbing

Commercial & Residential/ CA Lic # 950265 South Bay: (408) 881-4686 Peninsula: (650) 868- 0678 San Francisco: (415) 987-3038

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Center Hardware & Supply Co., Inc.

We're a locally owned independent hardware store open to the public.We look forward to earning your business! Building supplies, fasteners, tools, hardware, cleaners, ladders, electrical, keys & locks, plumbing and safety equipment.We are LBE certified with the City and County of San Francisco.

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Excalibur Water Heaters

Award winning. We only install water heaters and we dont do general plumbing work.

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Water Purification Systems

Water Purification Systems is a locally owned and operated business that provides domestic and commercial Water Filtration services in San Diego, Ca and Surrounding Areas. The Company was created due to the growing demand of pure Water in the Southern California Area. It is a well- known fact that this area gets very low precipitation per year that�s why we have to bring the most part of our potable water from outside of the State. That makes it very pricey and also drops considerably the Quality of our Tap

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Akamai Plumbing and Remodel

Looking for professional plumbing service without the big company prices? Your Search is over. We've taken our experience working for some of our local professional companies as some of their well respected techs, and opened our own small business. We are licensed, bonded and insured. Reliable, Affordable, Knowledgeable and Prompt. Services include Installation, Repair, Maintenance and Replacement of the following: - Appliances ( dishwashers, washer and dryers, refrigerators) - Water lines (copper, Quest/Po

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All Cities Water Treatment Inc

All Cities Water has been serving San Diego homeowners and Business customers since 1991.Our staff and service technicians are highly trained and experts in their field.We are one of the few licensed contractors in California, specifically licensed in Water Treatment, and we are also a licensed plumbing contractor.License #631304.(C55 & C 36

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Allstar Water Systems

FAMILY OWNED AND OPERATED.

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Coast Water Conditioning & Plumbing

Coast Water Conditioning & Plumbing serves San Diego County with 3 generations of water treatment expertise.Our family owned business has worked closely with home owners and business owners to improve the quality of the water they consume and use each day.We proudly offer high quality Hellenbrand products that we service and install directly with our knowledgeable and trained in-house staff.We service most makes and models of water treatment equipment.Our service call rates are fair and time starts at your

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Culligan of San Diego

Culligan of San Diego is your local water expert. We have the equipment and experience necessary to serve all of your water needs including water softening, reverse osmosis drinking water, bottled water delivery, salt-free solutions, bottle-free coolers and water filtration systems for both residential and commercial properties.With over 65 years of experience in the San Diego area we understand the region�s water conditions. Our service territory covers Camp Pendleton, Oceanside, Carlsbad, Encinitas, Selen

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FILTERCON TECHNOLOGIES

Filtercon is California�s leading water filtration company. With over 18 years of proven reliability and customer service, we have one of the highest Better Business Bureau ratings: A+. Our green products use No Chemicals, Salt, or Wastes Water. Best of all, our systems are 100% made in the USA with all components NSF tested and approved. We provide free water testing for those looking to get real filtered water into their homes

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Water Treatment System FAQs

The most common types of water treatment systems for residential use include:

  • Water Softeners: These are designed to remove hardness minerals like calcium and magnesium, preventing scale buildup.
  • Reverse Osmosis (RO) Systems: These systems use a membrane to filter out contaminants such as lead, chlorine, and nitrates.
  • Carbon Filters: Activated carbon filters are great for removing chlorine, bad tastes, and odors.
  • UV Purifiers: Ultraviolet light systems disinfect water by killing bacteria, viruses, and other pathogens.
  • Whole-House Filtration Systems: These systems provide comprehensive water treatment for all water entering the home.

Each system serves different needs, so it’s best to have your water quality tested before deciding on the right one for your home.

The cost of installing a water treatment system varies widely based on system type and complexity. Homeowners can expect to pay:

  • Water Softeners: $500–$3,000
  • Reverse Osmosis Systems: $300–$2,500 (for under-sink models) or $5,000–$12,000 (for whole-house systems)
  • Carbon Filters: $100–$2,000 (depending on whether they’re point-of-use or whole-house)
  • UV Purification Systems: $500–$2,500
  • Comprehensive Whole-House Filtration Systems: $2,000–$10,000

Labor costs typically range from $300 to $1,500 depending on the complexity of the installation. Always request a detailed quote from the installer to understand what’s included.

Certain signs indicate you may need a water treatment system in San Leandro:

  • Hard Water: Look for scale buildup on faucets, stiff laundry, or spotted dishes.
  • Unpleasant Taste or Odor: Chlorine, sulfur, or metallic tastes are common problems.
  • Water Staining: Brown, reddish, or blue-green stains on sinks and tubs indicate specific contaminants.
  • Health Concerns: If you suspect contaminants like lead or bacteria, professional water testing is crucial.
  • Well Water: Private wells often contain higher levels of impurities, requiring treatment.

To confirm, start with a water quality test. Local agencies or private companies in San Leandro can assist with this analysis.

Hard water contains high levels of calcium and magnesium, which can reduce the efficiency and lifespan of appliances such as water heaters, washing machines, and dishwashers. Scale buildup can:

  • Clog pipes and reduce water flow
  • Decrease the energy efficiency of water heaters
  • Cause wear and tear on washing machines and dishwashers

A water softener is the most effective fix for hard water issues.

When hiring a water treatment professional, be sure to:

  1. Check Credentials: Verify licensing and certifications specific to water treatment.
  2. Ask for References: A reputable professional should provide references or reviews from past clients.
  3. Request a Water Test: Before recommending solutions, a pro should test your home’s water quality.
  4. Get a Detailed Estimate: Ensure quotes include equipment, labor, warranties, and any service fees.
  5. Ask About Maintenance: Some systems require regular upkeep. Ensure the pro provides a maintenance plan.

A trustworthy expert will prioritize transparency and tailor solutions to meet your home’s unique needs.

The installation timeline for a water treatment system varies depending on the complexity of the system. For example:

  • Point-of-Use Filters (like under-sink systems): 1–3 hours
  • Whole-House Water Softeners: 4–8 hours
  • Reverse Osmosis Systems (whole-house): 1–2 days

Factors such as the condition of your plumbing and any required upgrades can extend this timeframe. Your installer can provide a more precise estimate after inspecting your setup.

Before purchasing a water treatment system, consider asking:

  1. What specific contaminants does this system remove?
  2. How much maintenance is required? Are there ongoing costs?
  3. Will this system meet my household’s water usage needs?
  4. Does the system come with a warranty for parts and labor?
  5. Is it certified by organizations like NSF International? (Learn more about certifications at NSF.org)

These questions will help you make an informed decision and ensure your investment meets your expectations.

Yes, water treatment systems require regular maintenance to function effectively. For example:

  • Water Softeners: Replenish salt and clean the brine tank every 6–12 months.
  • Reverse Osmosis Systems: Replace filters every 6–12 months and membranes every 2–3 years.
  • UV Purifiers: Change the UV bulb annually and clean the quartz sleeve regularly.
  • Carbon Filters: Replace cartridges as recommended (usually every 6–12 months).

Discuss the maintenance schedule with your installer to avoid performance issues.

Water treatment systems can be environmentally friendly, but it depends on the type of system and its operation. For example:

  • Water Softeners: While effective at reducing scale, traditional softeners can waste water during regeneration. Look for high-efficiency models.
  • Reverse Osmosis (RO) Systems: These systems produce wastewater, but modern RO systems are more efficient.
  • Carbon Filters: Generally eco-friendly, but the filters must be disposed of properly.

Researching energy-efficient, eco-certified systems or consulting with a "Water Treatment System Pros" expert can help you choose greener options.

In San Leandro, water treatment specialists are often required to hold specific licenses or certifications to ensure they meet safety and quality standards. Look for credentials such as:

  • State or local water treatment licenses
  • Certifications from the Water Quality Association (WQA)
  • NSF/ANSI certifications for the equipment being installed

For more information on licensing in your area, you can visit your state’s licensing board (e.g., National Association of State Contractors Licensing Agencies). Verifying credentials ensures the professional you hire is qualified to provide safe and effective solutions.

Reviews for Water Treatment System Pros

Hard Water No More!
Our faucets were caked with limescale, and water spots ruined everything. The pros recommended a softener that fit our budget and installed it in just one afternoon. Now our water is crystal clear, and my appliances have stopped breaking down – I’m already seeing the savings!
Lori P.
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Goodbye Weird Water Smell
The sulfur smell from our well water was unbearable. In less than 24 hours, they tested the water, installed a filtration system, and walked me through maintenance. The air in our home feels fresher, and we’re finally confident drinking straight from the tap in Boise, ID.
Edward W.
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Fast Fix for Healthier Water
Our toddler's eczema flared up, and we suspected chlorine in our water. These pros got us a reverse-osmosis system up and running within two days. The skin improvements were almost instant, and it’s such peace of mind knowing what we’re drinking is safe.
Cindy L.
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This page was last updated on Jan 5, 2026, 5:07:08 AM