Reverse Osmosis Systems for Austin and the Highland Lakes & Hill Country
A reverse osmosis (RO) system gives you cleaner, better-tasting drinking water by forcing it through a fine membrane that removes contaminants other filters leave behind. Lantz Home Services installs and services both under-sink (point-of-use) and whole-home RO systems for homeowners across the Highland Lakes, the Hill Country, and the greater Austin metro. Our licensed plumbers size the system to your water, install it right the first time, and stand behind the work.
Why Local Water Makes RO Worth It Here
Water on this side of Central Texas is hard, and a lot of it comes from private wells, lake-fed supplies, and small rural systems rather than a single big-city utility. Homes pulling from the Highland Lakes chain, Lake LBJ, Lake Marble Falls, Lake Travis, Lake Buchanan, and well water around Spicewood, Horseshoe Bay, and Granite Shoals routinely deal with high mineral content, sediment, and taste and odor issues that a basic pitcher filter never touches. We have spent 50-plus years working on water in exactly these communities, so we size and place RO systems around the realities of local water instead of a generic spec sheet.
A reverse osmosis system is the most effective point-of-use option for drinking and cooking water because it reduces dissolved solids down to the microscopic level, the minerals, salts, and contaminants that survive a standard whole-home filter or softener.
What a Reverse Osmosis System Removes
RO systems use a multi-stage process to reduce a wide range of contaminants commonly found in Central Texas water:
- Dissolved solids (TDS) — the mineral load behind that flat or metallic taste
- Sediment and rust from older lines and well systems
- Chlorine and chloramine taste and odor
- Arsenic and fluoride
- PFAS ("forever chemicals")
- Microplastics
- Herbicides and pesticides — relevant for rural and well-fed properties
- Heavy metals such as lead
- Many other dissolved contaminants
A typical residential RO system runs water through at least three stages: a prefilter that strips sediment and chlorine before they can damage the membrane, the RO membrane itself that removes dissolved solids, and a postfilter that polishes the water on its way to a dedicated faucet.
Why Homeowners in the Highland Lakes Choose RO
- Cleaner drinking and cooking water. RO removes the dissolved contaminants that softeners and whole-home filters are not built to catch.
- Better taste, every glass. No more buying bottled water by the case, your tap becomes the source.
- Protection for fixtures and appliances. Cleaner water means less buildup affecting faucets, ice makers, and connected appliances.
- Right-sized for your home. We match point-of-use vs. whole-home RO to how your household actually uses water.
Reverse Osmosis Installation Done Right
Installing an RO system is more than connecting a couple of lines under the sink. It takes correct placement, secure and sealed fittings, and proper attention to drainage and water pressure so the system performs for years. A bad DIY or handyman install is one of the most common reasons we get called out, leaks inside the cabinet, low flow at the faucet, or a membrane that fails early.
Our licensed plumbers handle every detail, from sizing and placement through final testing, and we often complete installs same day. Whether you are adding a new under-sink drinking water system or upgrading an aging setup, we make sure it is leak-free and dialed in before we leave.
Service, Support, and Filter Maintenance
RO systems need routine care to keep working well, mainly filter and membrane replacements on a schedule set by your water quality and usage. Hard, mineral-heavy Highland Lakes water tends to load filters faster, so the right interval here is often shorter than a manufacturer's generic estimate. We handle filter changes, membrane swaps, and annual check-ups for whole-home systems, and we can build RO maintenance into a regular service plan so you never have to track it yourself.
When you want clean drinking water without the hassle, leave it to Lantz!
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Get to Know the Experts Who Bring Quality and Care to Every Job
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Kelly S. Accounting
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Cami C. Marketing Director
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Mark M. Plumbing Service Manager
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Willie K. Plumbing Technician
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When you need plumbing, HVAC, or electrical service in Austin, TX, trust the local team dedicated to serving Central Texas homeowners with dependable service and professional care.
Frequently Asked Questions
What is a home reverse osmosis (RO) system?
A home reverse osmosis system is a multi-stage water treatment process that removes contaminants by pushing water through a semipermeable membrane under pressure. Most residential systems use at least three stages — a prefilter for sediment and chlorine, the RO membrane for dissolved solids, and a postfilter that polishes the water before it reaches a dedicated faucet. The clean water is called permeate; the leftover concentrated water is flushed away as waste. RO is one of the most effective ways to produce clean, great-tasting drinking water at home.
Is my tap water safe to drink in the Highland Lakes area?
Public water systems in Texas are regulated by the EPA and the Texas Commission on Environmental Quality (TCEQ) and are required to meet federal safety standards. That said, "meets standards" is not the same as "tastes good" or "free of every contaminant." Many homes around the Highland Lakes draw from wells or smaller rural systems with high mineral content, sediment, and taste issues — and even compliant municipal water can carry chlorine taste, dissolved solids, or trace contaminants like PFAS. A reverse osmosis system gives you an added layer of treatment for the water you actually drink and cook with.
What's the maintenance like for an RO system?
Maintenance is straightforward: periodic filter replacements and, on whole-home systems, an annual inspection for leaks or pressure issues. Most systems have several filters — prefilter, sediment, carbon, and the RO membrane — that need changing on a schedule based on your water quality and usage. Because Highland Lakes water tends to be hard and mineral-heavy, filters here often need changing more frequently than a generic estimate suggests. Lantz Home Services can handle replacements for you or fold them into a regular maintenance plan.
Why should I hire a licensed plumber to install an RO system?
A professional install protects you from leaks, water damage, poor flow, and early membrane failure — the most common problems we see from DIY and handyman jobs. Lantz Home Services brings the local plumbing experience to size the system correctly, place it for best performance, connect it to code, and pressure-test every fitting before we leave. We back our installations and provide ongoing service, so if anything comes up later, the same local team that installed it handles the fix.
Where does Lantz Home Services install reverse osmosis systems?
We install and service RO systems across the Highland Lakes, the Hill Country, and the greater Austin metro — including Marble Falls, Horseshoe Bay, Granite Shoals, Highland Haven, Spicewood, Sunrise Beach Village, Burnet, Kingsland, Cedar Park, and surrounding communities. If you are not sure whether you are in our service area, give us a call at {{PHONE — copy from GBP}}.
How can I test the water quality in my home?
Start with your provider's annual Consumer Confidence Report (CCR) if you are on a municipal system, or the EPA's local drinking water tool. Watch for everyday signs of water quality issues too: metallic or sulfur taste, chlorine smell, cloudiness, low pressure, or sediment in sinks. For well water, a professional test is the only reliable read. Lantz Home Services can test your water and recommend the right solution — softener, whole-home filter, RO, or a combination — based on what is actually in it.
Trusted By Your Neighbors!
Real Feedback From Real Customers
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Preventative maintenance is the backbone of Lantz Home Services. Once again being part of their PM program I avoided a complete shutdown of our grinder pump. Lantz Master Plumber Justin Barnett arrived and I thought all was well until he requested that I take a “peek” into what I would describe as a total catastrophe about to happen at any moment. The grinder system was a horror of failing pump and sewage accumulation and related nasties. Justin told me my options from doing nothing to fixing it with 3 options, which were clearly defined with costs and various replacement components and when it would be finished. We chose wisely. Justin returned with all of the components and in 4 hours it was stripped completely and reassembled with new components. Justin is organized, articulate, educated and polite. Bravo Lantz Home Services PS. I worked in industrial Preventative Maintenance for 25 years. These guys are the real deal.- Randy L.
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I had a great experience with Lantz Home Services. We ran into an electrical issue at our lake house late in the day, and I honestly didn’t think we’d be able to get an electrician out that evening. When I called, they reassured me that someone would be available—and they delivered. Nick, their electrician, arrived around 7 PM and had everything resolved by 9 PM. He was prompt, thorough, and very courteous throughout the entire process. He quickly diagnosed the problem and fixed it efficiently, all at a very fair price. I truly appreciate their responsiveness and professionalism. I highly recommend Lantz Home Services and will definitely be using them again in the future.- Larry W.
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Zachary was beyond helpful! He jumped straight to the problem, made sure everything was properly working, walked me through the fix and was straightforward from the get go about what the potential issues could be and what the estimated repairs were as well! He kept me informed and even shared pictures when I couldn't be there right away. After everything was done he put everything back the way it was. This was a grinder pump drainage pipe repair. The site looked as if he was never there! Five stars.- Simon V.
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I had an excellent experience with this HVAC company and especially with Moses, who came out for a second opinion. After a previous technician tried to convince me that I needed a full system replacement (on a 4-year-old unit), Moses took a completely different and highly professional approach. He performed thorough diagnostics before suggesting anything and took the time to properly assess the system instead of jumping to conclusions. He confirmed that there was no leak, no major component failure, and that the system was actually in good working condition. The issue was likely electrical, not something requiring expensive replacements. This immediately put my mind at ease. What really stood out is their honesty and integrity. Instead of pushing unnecessary work, they were transparent about the fact that no major repairs were needed. They also documented their findings and shared everything clearly, which builds a lot of trust. Huge shoutout to Moses for being knowledgeable, thorough, and genuinely looking out for the customer’s best interest. It’s rare to find this level of honesty in the industry. Highly recommend if you want accurate diagnostics and fair, trustworthy service.- Annamaria
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Excellent service, fast, and professional team. Willie Krueger was the tech who came through, he solved plumbing issues that had bugged me for almost 10 years in about 20 minutes. Will absolutely use them in the future for anything I can, and would highly recommend to anyone I need of their services.- Jonathan J.
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Zac was very cordial and made sure I was aware of what he diagnosed and what it was going to cost. We had one of our Heat Pumps replaced last week, the Techs were John and Landyn. The response was amazing as was the changeout. I can not speak highly enough about the professionalism we received!- Gerald P.
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The folks at Lantz Home Services installed this Tankless Water Heater for me and were absolutely amazing! They put up new wall paneling to cover some wall defects I had from the old tank water heater. So happy with my new water heater!!- Nichole W.
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Mark and Willie came out to the Christian Brothers Automotive pflugerville location and were able to handle the commercial plumbing issue that 3 other plumbing companies were not able to figure out. We will only be using them form now on the difference was night and day between them and the others. On a side note Willie’s service truck was the cleanest most well organized service truck we all had ever seen!!! They take pride in their service and we appreciate that in our service industry as well!- Ian D.