Under Sink Reverse Osmosis System in San Diego, CA

Crystal Clear Water at Your Fingertips: Under-Sink Reverse Osmosis System Installation in San Diego, CA

Experience unmatched water purity in your San Diego home with an under-sink Reverse Osmosis (RO) system professionally installed by Airight Cooling, Heating & Plumbing Inc. Say goodbye to bottled water and concerns about tap quality. We deliver a reliable, efficient, and sustainable solution to access cleaner, better-tasting water directly from your kitchen faucet.

Why San Diego Homes Need Under-Sink Reverse Osmosis Systems

Understanding Local Water Quality Concerns

Though San Diego’s municipal water meets federal and state standards, it often contains dissolved solids, chloramines, and potential contaminants like lead, PFAS, and pharmaceuticals. These elements can impact not only the taste and smell of your water but also your family’s long-term health.

Tailored Filtration for San Diego Residents

An under-sink RO system installed by Airight Cooling, Heating & Plumbing Inc. adds a powerful filtration layer to your home. This system goes beyond traditional water treatment, removing lingering impurities right at the point of use — ensuring water for drinking, cooking, or even making ice is as clean and safe as possible.

How Our Multi-Stage Reverse Osmosis System Works

Advanced Filtration Stages for Maximum Purity

Unlike standard water filters, our RO systems use a multi-stage process — typically four to six phases — to provide exceptionally pure water:

Stage 1: Sediment Filter Captures larger particles like dirt, sand, and rust, protecting the more sensitive parts of the system.

Stage 2: Pre-Carbon Filter Reduces chlorine and chloramines that affect taste and damage RO membranes.

Stage 3: Reverse Osmosis Membrane Filters out up to 99% of dissolved solids, heavy metals, nitrates, PFAS, and other contaminants.

Stage 4: Post-Carbon Filter Polishes the stored water for final use, enhancing taste and removing any residual odors.

Optional Stages: Some systems also include remineralization filters or UV disinfection for added benefits, making the water even better than most bottled brands.

Benefits of Installing a Reverse Osmosis System with Us

Health and Safety at Home

Our RO systems provide peace of mind with every sip by removing harmful chemicals and contaminants from your water.

Better Taste, Smell, and Enjoyment

Make beverages, meals, and even ice taste noticeably cleaner and fresher by eliminating unwanted odors and flavors.

Save Money Over Time

Cut out the recurring cost of bottled water — enjoy pure water on demand for a fraction of the cost.

Environmentally Friendly

Reduce plastic waste and make an eco-conscious choice by avoiding single-use water bottles.

Unmatched Convenience

Pure, delicious water is always within reach at your sink. Perfect for baby formula, pet care, or even watering sensitive plants.

Consider Whole-Home Filtration

For complete household coverage, explore our Whole-House Water Filtration solutions in addition to your RO system.

Professional Installation by Airight Cooling, Heating & Plumbing Inc.

Free Water Test and Consultation

Every installation begins with a complimentary in-home water test. We evaluate your water quality and offer tailored recommendations that match your household’s needs.

System Selection Guidance

Our experts walk you through the options to help you choose the right RO system — one that fits your budget and delivers the results you expect.

Seamless Installation Process

Our licensed plumbers handle every step: connecting plumbing, installing the faucet, sealing components, and keeping your space clean.

Post-Installation Walkthrough

We make sure you’re fully comfortable using your new system with a guided walkthrough and basic maintenance instructions.

Explore our current Promotions to save on installation or upgrades.

Maintaining Your System: Stress-Free Support

Filter Replacement Made Easy

Typical schedules include:

Sediment & Carbon Filters: Every 6–12 months
RO Membrane: Every 2–5 years

Airight Cooling, Heating & Plumbing Inc. provides clear filter replacement guidelines and can handle all maintenance for you.

Stay Covered with Our Membership Plan

Join our Maintenance Plan for priority service, reminders, and discounted maintenance that keeps your system running at peak performance for years.

Compare Your Drinking Water Options

Filtration MethodContaminant Removal CapabilityConvenienceCostBest ForUnder-Sink ROExcellent: dissolved solids, metals, PFAS, nitratesOn-demand at tapHigher upfront, low per gallonBest for full drinking/cooking filtrationPitcher FiltersLimited: mostly chlorine, taste/odorPortable, basicLow initial, high per gallonLight users, taste improvementsFaucet FiltersModerate: chlorine, sedimentEasy to useMedium cost, frequent replacementsModerate daily use, basic needs

Why Choose Airight Cooling, Heating & Plumbing Inc.

Trusted Local Experts

With deep knowledge of San Diego’s water systems and plumbing needs, we deliver reliable, effective solutions tailored for your home.

Certified, Professional Technicians

Our team is made up of highly skilled, licensed plumbers committed to quality craftsmanship and exceptional customer service.

Your Satisfaction, Guaranteed

Our motto is “Get it Right with Airight!” We guarantee your satisfaction with every service and stand behind the results we deliver.

Free Second Opinion

Already received a quote? Let us offer a Free Second Opinion to ensure you're making the most informed decision.

Flexible Financing Options

We offer Financing solutions so you can invest in water purity without stretching your budget.

Highly Rated by Your Neighbors

See what others are saying about our quality and commitment — read our Reviews from satisfied San Diego homeowners.

Frequently Asked Questions (FAQ)

How much does it cost to install an under-sink RO system in San Diego?

Cost depends on system type, brand, plumbing conditions, and labor. We provide accurate pricing after a free consultation.

How long does installation take?

Most systems are installed in 1–3 hours. Our licensed plumbers work efficiently with minimal disruption.

How often do filters need to be changed?

Pre-filters: 6–12 months; RO membrane: 2–5 years. We provide clear reminders and maintenance plans to help you stay on schedule.

Does reverse osmosis remove essential minerals?

Yes, it removes most dissolved solids, including some beneficial minerals. Optional remineralization filters can restore taste and balance.

Is RO water wasteful?

Modern RO systems are much more efficient, often achieving a 1:1 water ratio. They’re significantly more sustainable than bottled water.

Can I install an RO system myself?

While DIY kits exist, professional installation ensures safety, optimal performance, and compliance with local plumbing codes.

What contaminants does an RO system remove?

RO systems filter out chlorine, chloramines, PFAS, fluoride, lead, arsenic, nitrates, bacteria (if UV is included), and more.

Ready to Upgrade Your Water Quality?

Don’t settle for anything less than the best. Let Airight Cooling, Heating & Plumbing Inc. help you enjoy cleaner, safer, and better-tasting water — starting today.

Schedule your free consultation now or learn more About Us. For fast service or questions, Contact our team. We’re here to help you every step of the way.

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Customer Reviews

Paul.

AiRight sent Gustavo Lizarraga to resolve a shower drain issue which required going down into the crawl space under the house. Gustavo corrected shower and bathtub ABS sewer line piping and replaced an internally corroded piece of vertical cast iron pipe. Gustavo was polite and efficient, provided detailed pictures of his work and the piece of cast iron pipe he removed. Gustavo is an excellent plumber.

RAN C.

Adrian came out to fix plumbing issues.He was on time for appointment,also very knowledgeable, professional, plus very kind.So far I received his service twice this year and I am highly satisfied with his service.I recommend him and I will call him again forany plumbing servicein the future.Thanks again Adrian!

Charlotte R.

As a Realtor needing quick response for air conditioning emergency in SanteeI was so impressed by AiRight last week. Terry was available by phone and text, he sent Mr Wonderful aka Carl to save the day! It was so hot, he took care of things quickly and was so nice. What a great team and
I will definitely call them for all of my AC and Heating needs from now on.

Jamey Q.

I usually do not write reviews, but this company has made such an impression on me thatI had to take a minute and let you know.I was impressed from the moment the lady first answered the phone. She genuinely seemed to care about whatI was going through and notjust pushed me on to the next person.Everyone I talked to was knowledgeable and courteous.I appreciate your punctuality and fair pricing.I will be using your service again.

Omar S.

My AC stopped blowing out cold air. I had another big company come out to take a look they spent 1 hour doing diagnostics and charged me $110 just for looking and wanted to charge me $8100 for the repair and I felt like I was being swindled so I called AiRight cooling for a second opinion and they sent out Jackie who took 15 minutes to figure out the problem and fixed it for $650. Jackie was professional, efficient and most of all honest. I just saved $7500!! Thanks to Jackie from Airight Cooling

Lan Y.

We had Vincent come over to fix the water leak at bathroom. He is very nice to work late in order to accommodate my working schedule. The fix was done in a quick and professional manner. I would recommend his service!