French Drain Installation in Austin, TX
Stop standing water, protect your foundation, and reclaim your yard with professional drainage solutions from the Central Texas team homeowners have trusted since 1972.
If part of your yard stays swampy for days after a storm, if water sheets toward your foundation every time it rains, or if you have simply stopped using a corner of your property because it never dries out, the problem will not fix itself. Central Texas rain arrives in bursts, and our thin Hill Country soils cannot absorb it fast enough. The water has to go somewhere, and without a plan, it goes wherever gravity takes it: against your slab, under your pier-and-beam home, or straight through your landscaping.
A properly designed French drain gives that water a better path. At Lantz Home Services, our licensed professionals design and install French drains and complete yard drainage systems that collect subsurface water and move it safely away from your home. We start with a real evaluation of how water moves across your specific lot, locate every buried utility before a shovel touches soil, and build drainage that keeps working for decades, not just through the next storm.
Call (512) 710-1032 or request service online to schedule your drainage evaluation. Leave it to Lantz.
Drainage Problems Do Not Fix Themselves
Water is patient. Every storm, it probes the same low spots, soaks the same soil against your foundation, and carves the same erosion channels a little deeper. What starts as a soggy patch becomes a shifted slab, a flooded outbuilding, rotted skirting on a pier-and-beam home, or a mosquito nursery ten feet from your back door.
Lantz Home Services has been solving water problems for Central Texas homeowners since 1972. We know how water behaves on a sloped Horseshoe Bay lot with two inches of soil over solid limestone, how it pools on the flat clay of a Round Rock backyard, and what happens to a Lago Vista hillside when four inches of rain fall in an hour. That local knowledge is the difference between a trench full of gravel and a drainage system designed to protect your biggest investment.
Every Lantz drainage project includes:
- An on-site evaluation of how water actually moves across your property
- Utility locating before any digging, performed by licensed professionals who know exactly where water, sewer, and gas lines run
- A written, upfront price before work begins
- Proper materials installed correctly: filter fabric, washed drainage rock, and perforated pipe set at the right depth and slope
- Clean excavation and full site restoration by our own excavation team
- Licensed, background-checked technicians (License #M-40190)
What Is a French Drain and How Does It Work?
A French drain is a gravel-filled trench containing a perforated pipe that collects groundwater and directs it away from where it causes damage. Water always follows the path of least resistance. A French drain simply gives it one: water seeps through the soil into the washed gravel, enters the perforated pipe through its openings, and flows by gravity to a safe discharge point such as a lower area of the yard, a street gutter, or a dedicated drainage outlet.
The concept is simple. The execution is where drainage systems succeed or fail. A French drain only works when the trench is graded to a consistent fall, the pipe is bedded correctly, filter fabric keeps soil from clogging the gravel, and the discharge point actually takes the water somewhere better. Skip any of those steps and you get what we are often called to fix: a buried pipe full of mud that quit working two summers after someone installed it.
Signs Your Property Needs a French Drain
Standing Water That Lingers After Rain
Puddles that stick around for more than a day mean your soil has absorbed all it can and the water has nowhere to go. That is exactly the problem a French drain solves.
Water Pooling Against Your Foundation
This is the sign to take most seriously. Water collecting beside your slab soaks the clay beneath it, and swelling clay is a leading cause of foundation movement in Central Texas. Drainage is far cheaper than foundation repair.
A Perpetually Soggy or Mushy Lawn
If the mower leaves ruts or a section of grass squishes underfoot days after a storm, subsurface water is sitting in the root zone, drowning your lawn and inviting fungus.
Water Under a Pier-and-Beam Home
Many older homes around the Highland Lakes sit on pier-and-beam foundations. Standing water in the crawl space rots wood, corrodes plumbing, breeds mold, and attracts pests. A perimeter drain keeps the space dry.
Erosion Channels and Washed-Out Beds
Hill Country lots shed water fast. If storms keep carving gullies through your landscaping or washing mulch into the street, the runoff needs to be intercepted and redirected.
Runoff from a Neighboring Property
When the lot next door sits higher than yours, their stormwater becomes your problem. A French drain along the property line intercepts it before it reaches your home.
Mosquitoes and Musty Odors
Stagnant water breeds mosquitoes in days. Persistent damp earth smells near the house often mean water is collecting where you cannot see it.
Cracks Appearing in Walls or Sticking Doors
Interior signs of foundation movement often trace back to a drainage problem outside. Solving the water problem is step one in stabilizing the foundation.
Recognize your yard in this list? Call (512) 710-1032 for a drainage evaluation before the next storm makes it worse.
Why Drainage Problems Are So Common in Central Texas
Our service area has some of the most challenging drainage conditions in the state, and understanding them is what separates a real solution from a gravel trench.
Feast-or-Famine Rainfall
Central Texas sits in Flash Flood Alley. We can go months with almost nothing, then take several inches in a single afternoon. Baked, hardened soil absorbs sudden rain poorly, so an enormous share of it becomes runoff all at once. Drainage systems here have to be sized for the storm, not the average.
Thin Soil Over Limestone
Across the Hill Country and the Highland Lakes, a few inches of soil often sit directly on limestone or caliche. Water cannot soak in, so it moves sideways, downhill, and toward whatever sits in its path. On these lots, a French drain is often the only practical way to control where water travels.
Expansive Clay in the Flatlands
East of the Balcones Escarpment, in areas like Round Rock, Pflugerville, and parts of Austin, heavy clay soils swell when wet and shrink when dry. Poor drainage feeds that cycle directly beneath foundations. Keeping water away from the slab keeps the soil moisture stable, and stable soil is what keeps foundations level.
Sloped Lots and Hillside Homes
Lakefront and hillside properties around Lago Vista, Jonestown, Spicewood, and Horseshoe Bay were built for the views, not the drainage. Every uphill acre sends its runoff across these lots. Intercepting that water on the high side of the home is often essential.
More Rooftops, More Runoff
Fast-growing communities like Cedar Park, Leander, and Liberty Hill are replacing absorbent open land with roofs, driveways, and streets. Many homeowners find their yard drains worse today than it did ten years ago, through no fault of their own. The water simply has fewer places to go.
Drainage Protects Your Foundation
In Central Texas, drainage and foundation health are the same conversation. Clay soil under and around a slab expands as it absorbs water and contracts as it dries. When one side of a foundation stays wet while the other stays dry, the soil moves unevenly, and the foundation moves with it. The repair bills that follow are among the largest a homeowner ever faces.
A correctly placed French drain keeps stormwater from saturating the soil along your foundation, evening out the moisture cycle that drives movement. If you are already seeing early warning signs like hairline cracks, sticking doors, or separation at trim lines, addressing drainage now is one of the most cost-effective steps you can take. And because our team also handles leak detection, we can rule out the other common culprit, a leaking underground line, in the same visit. A drainage contractor cannot do that. A licensed full-service plumbing company can.
Drainage Solutions We Install
No single product fixes every water problem. After evaluating your property, we design the right combination for your lot, which may include:
French Drains
The workhorse: perforated pipe, washed gravel, and filter fabric in a properly sloped trench, collecting subsurface water and carrying it to a safe discharge point. Ideal for soggy lawns, foundation protection, and intercepting uphill runoff.
Surface and Channel Drains
Some water needs to be captured before it soaks in: sheeting runoff on patios, driveways, and pool decks. Channel drains and catch basins collect surface water and tie into the same buried discharge lines. [CONFIRM: that surface/channel drain installation is offered.]
Downspout Tie-Ins
Roof gutters concentrate an entire roof's rainfall at a few points, often right beside the foundation. Routing downspouts into buried drain lines moves that water away from the house where it belongs. [CONFIRM: offered.]
Sump Pumps for Low Spots
When gravity alone cannot move the water, a collection basin and sump pump lift it out. We install and service complete sump systems, and pairing a French drain with a sump basin is a proven solution for low-lying lots and crawl spaces.
Dry Wells and Discharge Solutions
Every drain needs somewhere to send the water, and local rules govern where that can be. We design compliant discharge points, including dry wells where site conditions call for them. [CONFIRM: dry well installation offered; adjust as needed.]
Our French Drain Installation Process
- Drainage evaluation. We walk the property with you, ideally with recent rain in mind, and map where water comes from, where it collects, and where it can safely go.
- Utility locating. Before any excavation, we identify every buried water, sewer, gas, and electric line. As licensed plumbers, we know what is under your yard, because in many cases we installed it or have serviced it.
- System design and upfront pricing. You receive a clear plan showing drain placement, depth, slope, and discharge, with written pricing before any work begins.
- Precision excavation. Our own excavation team digs clean, properly graded trenches while protecting the rest of your landscape.
- Professional installation. Filter fabric, washed drainage rock, and quality perforated pipe, assembled in the correct order at the correct slope. No shortcuts, because shortcuts are why French drains fail.
- Testing and restoration. We verify flow to the discharge point, backfill, restore the surface, and walk the finished system with you.
What Affects the Cost of French Drain Installation
Every lot drains differently, so every system is priced from its design. You will have a written, upfront price before we begin, and these are the factors that drive it:
- Length and depth of the drain. A 30-foot run protecting one side of a foundation is a different project than a full perimeter system.
- Digging conditions. Trenching through Hill Country limestone takes more time and equipment than trenching through loam. We tell you honestly which one your lot is.
- Discharge distance and destination. Where the water can legally and practically go affects how much pipe and grading the job requires.
- Obstacles. Tree roots, hardscape, irrigation lines, and buried utilities all shape the routing.
- Add-on components. Catch basins, downspout tie-ins, and sump pumps expand the system's capability and its scope.
[OPTIONAL, RECOMMENDED: publish a typical range, e.g. "most residential French drain projects in our area fall between $X and $X per linear foot installed." Nobody local publishes drainage pricing, so even a broad honest range will own the cost searches.]
Ask about flexible financing with approved credit for larger drainage projects.
Why Hire a Licensed Plumber Instead of a Landscaper?
Plenty of landscape crews will dig you a trench. Here is what they cannot do:
- Know what is buried in your yard. Your water service, sewer lateral, and gas line all cross the same ground a French drain occupies. Our licensed team locates and protects them, and if your drainage problem turns out to involve one of them, we diagnose and fix it on the spot.
- Tell drainage from a leak. A chronically wet spot is not always rainwater. Sometimes it is a leaking supply line or a failing sewer lateral. We test for both before recommending a drain, so you never pay to drain water that a pipe repair would have stopped.
- Stand behind the whole system. One licensed, insured company handles design, excavation, installation, and any plumbing connections, with more than 50 years of local accountability behind the work.
French Drain Installation Throughout Austin and the Highland Lakes
From our home base in Lago Vista and our Austin office, Lantz installs French drains and drainage systems across Central Texas, including:
Austin, Bee Cave, Burnet, Cedar Park, Georgetown, Granite Shoals, Horseshoe Bay, Jonestown, Kingsland, Lago Vista, Lakeway, Leander, Liberty Hill, Manor, Marble Falls, Pflugerville, Point Venture, Round Rock, Spicewood, and Sunrise Beach Village. [Link each city to its /service-areas/ page.]
We have worked these lots since 1972: the limestone hillsides above Lake Travis, the clay flats of Williamson County, and the lakefront terraces of Lake LBJ. If you do not see your community listed, give us a call.
Protect Your Whole Home with the Ultimate Home Care Plan
Drainage is one piece of a healthy home. Members of our Ultimate Home Care Plan get priority scheduling, member savings, and regular checkups across plumbing, heating, cooling, and electrical, including the sump pumps and drains that protect your property when the big storms come. [CONFIRM: whether seasonal sump/drainage checks are a plan benefit and state it here if so.]
Flexible Financing for Drainage Projects
A complete drainage system is an investment in your foundation and your property value. We offer financing options with approved credit, plus seasonal savings worth checking before you schedule.
Why Homeowners Choose Lantz Home Services
- Local since 1972. More than 50 years working Central Texas soil, from lakefront limestone to blackland clay. We are not a franchise and we are not new here.
- Licensed plumbing expertise. Drainage that respects and protects every buried line on your property, from a company that can also repair those lines (License #M-40190).
- Upfront pricing. Written quotes before work begins. The price we quote is the price you pay.
- Our own excavation team. Design, digging, installation, and restoration by one accountable crew, not a chain of subcontractors.
- One company for the whole home. Plumbing, sewers and drains, heating, air conditioning, and electrical under one roof.
Related Services
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.
French Drain FAQ
The Basics
What exactly does a French drain do? It collects water that is soaking through or sitting in your soil and gives it an easy underground path away from your home. Water enters a gravel-filled trench, flows into a perforated pipe, and drains by gravity to a safe discharge point.
How is a French drain different from a surface drain? A French drain handles water in the soil; surface and channel drains capture water sheeting across patios, driveways, and lawns before it soaks in. Many properties need both, tied into one discharge system.
How long does a properly installed French drain last? Decades. The systems that fail early are almost always missing filter fabric, washed rock, or proper slope, which is why installation quality matters more than the pipe itself.
Will a French drain fix my soggy yard for good? When the system is designed for your lot's actual water sources and sized for Central Texas storms, yes. That is why we start with an evaluation instead of a standard trench.
Do French drains work on lots that sit on rock? Yes, and they are often the only option, because water cannot soak into limestone. Trenching in rock takes more effort, and we price that honestly after seeing your site.
Foundations and Home Protection
Can a French drain really protect my foundation? Yes. Keeping stormwater from saturating the clay around your slab stabilizes the soil moisture cycle that causes most foundation movement in our area.
Water pools next to my slab after every storm. How urgent is this? Treat it as urgent. Repeated saturation beside a foundation is one of the most preventable causes of expensive structural repairs.
My pier-and-beam crawl space stays damp. Will a French drain help? Usually, yes. A perimeter drain, sometimes paired with a sump pump, keeps water from collecting under the home where it rots wood and breeds mold.
Could my wet spot be a plumbing leak instead of drainage? It happens more often than people think. As licensed plumbers we test for supply and sewer leaks before recommending a drain, so you fix the real problem.
Installation Questions
Where does the water go? To a discharge point we design for your lot: a lower portion of the property, a street gutter, or another compliant outlet. Local rules govern discharge, and we handle that in the design.
Will installation tear up my whole yard? No. We trench along a planned route, protect the surrounding landscape, and restore the surface when we finish. Most lawns recover fully within a season.
How deep is a French drain installed? Typically enough to intercept the water causing your problem, commonly in the range of 18 to 24 inches for yard and foundation drains, though your site's design controls the final depth.
How long does installation take? Most residential systems are completed in one to a few days depending on length, digging conditions, and components like basins or sump pumps.
Do I need a permit? Requirements vary by city and by where the water discharges. We confirm and handle whatever your jurisdiction requires as part of the project.
Can you tie my gutters into the drainage system? [CONFIRM offering, then:] Yes. Routing downspouts into buried lines is one of the most effective upgrades, since a roof concentrates thousands of gallons at a few points beside your foundation.
Cost and Maintenance
How much does a French drain cost? It depends on length, depth, digging conditions, and discharge distance. You get a written, upfront price after the on-site evaluation, and financing is available with approved credit.
Is a French drain worth it compared to foundation repair? Drainage is a fraction of the cost of foundation work, and it addresses the cause rather than the symptom. Prevention is the better investment every time.
Does a French drain need maintenance? Very little when built correctly with filter fabric and washed rock. Keeping the discharge point clear and having the system checked periodically is usually all it takes.
My old French drain stopped working. Can you fix it? Yes. We diagnose whether it is clogged, was built without fabric, or lacks slope, then repair or rebuild the failed section. Many of our installations replace drains that were done wrong the first time.
Local Questions
Do French drains work with Central Texas flash flooding? A French drain manages soil water and routine runoff; extreme flash flooding requires realistic expectations and sometimes additional measures like channel drains and regrading. We design for our climate and tell you honestly what a system can and cannot do.
My uphill neighbor's runoff crosses my lot. Can a drain stop it? An interceptor French drain along the high side of your property is exactly the tool for that, capturing the flow before it reaches your home.
Do you install drainage in [city]? We install French drains throughout the Austin metro and the Highland Lakes, including Lago Vista, Cedar Park, Leander, Marble Falls, and Horseshoe Bay. If your community is not on our service areas page, call us.
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Your yard should shed water, not store it. Call (512) 710-1032 or request service online for a professional drainage evaluation from the team Central Texas has trusted since 1972. Leave it to Lantz!