Artificial grass installation in Houston depends on three things most homeowners never see: the infill that props up the fibres, the base layer underneath that lets water drain away, and the finishing work that keeps seams tight and edges clean. This guide walks you through each one, explains why each matters in our flat, clay-heavy terrain, and shows you what to ask for in writing before any work begins. Whether you are converting a St. Augustine lawn that has thinned under live oaks, building a dog run that will not turn to mud, or preparing a patio for a pool surround, the ground underneath the turf is where the real work happens.
You will find honest answers here about what works, what does not, and when a healthy lawn or a different solution might be the better choice. We have installed turf on pier-and-beam cottages in the Heights, brick ranches in Meyerland, tiny side yards in Rice Military, and new homes raised after Harvey. Every job teaches us something about Houston soil, drainage and what a homeowner should demand from any turf installer. If you are ready to move forward, a free estimate includes a site measurement and a written spec naming every material and depth.
Turf Infill Options: Silica, Coated Sand, Zeolite and Envirofill
Infill is the material spread on top of the turf after it is laid. It serves four purposes: it props up the synthetic fibres so they stand upright and look full, it protects the backing from ultraviolet light, it adds weight so the turf does not shift in wind, and it plays a role in how quickly water drains through the system. The most common infill is silica sand, a basic ballast that is affordable and effective for most residential yards. Silica is sharp-edged and does the job, but some homeowners prefer coated sand, where the grains are rounded and often tinted to match the turf colour. Coated sand feels gentler underfoot and looks more natural, though it costs more than plain silica.
For pet areas and dog runs, zeolite is a mineral infill that absorbs odor-causing compounds better than sand alone. It is often mixed with sand or used on its own, and many homeowners find it makes a real difference in smell, especially in Houston's humidity. Some manufacturers offer antimicrobial and cooling coated infills sold under brand names such as Envirofill. These products are designed to reduce bacterial growth and lower surface temperature in full sun, which matters in a climate like ours. Crumb rubber, made from recycled tires, is used on sports fields and playgrounds where impact protection is the priority; it is not typical for residential yards and brings its own considerations around temperature and maintenance. The infill you choose depends on your use, your budget, and what your turf spec calls for.
How Much Infill Artificial Grass Needs, and Why
Every turf product is specified with an infill amount, measured in pounds per square foot. This number tells you how much material needs to go down to make the turf perform as designed. Infill holds the fibres upright so they do not mat down, it protects the backing from sun damage, and it helps the turf drain water properly by creating channels through the material. Typical residential turf calls for 1.5 to 2.5 pounds per square foot, depending on the pile height and fibre type, but this varies by product and use. A pet turf or dog run might need more infill to hold odor-fighting zeolite and to keep the backing protected. A putting green needs precise infill depth to control ball roll.
One of the most common shortcuts in cheap installations is spreading too little infill. The turf looks full for a few weeks, but the fibres compress, mat down, and stop draining properly. Water pools, odor builds, and the turf wears fast. When you get a quote, ask for the infill amount in writing, and ask what product and type it will be. A good installer will measure your yard, calculate the square footage, and tell you exactly how many pounds of infill will go down and why. Do not accept a price without this detail. If the spec is vague or if the installer cannot tell you the pounds per square foot, that is a red flag.
What to Put Under Artificial Grass for Drainage
The foundation under artificial grass is as important as the turf itself. The process starts with removal: if there is an existing lawn, it has to come out, roots and all, because dead organic matter underneath will break down, settle, and leave dips and soft spots. If there is old turf, it comes out too. Once the ground is cleared, the next step is excavation and grading. The goal is to create a smooth, level base with a slight fall away from the house and any structures like a pool or patio. This fall, usually a quarter-inch per foot or so, lets water run off instead of pooling. On Houston's flat terrain, this grading is critical because our clay soil does not drain on its own.
After grading comes the base layer, typically three to four inches of decomposed granite or crushed base rock, compacted firmly in lifts with a plate compactor. This is the layer that lets water through and keeps the turf from settling. On top of that, depending on the job, you might add a weed barrier (a permeable fabric that stops weeds from coming up through the turf) and then a draining underlay or pad. Underlays are especially useful for patios, balconies and pool surrounds, where the turf sits on concrete or a hard surface. On a concrete slab, the turf cannot be glued flat without creating a water trap. Instead, an underlay sits between the slab and the turf, and edge drainage is installed to move water away. Finally, the turf goes down on top. This layered approach is what separates a durable installation from one that fails in a year.
Base Prep on Houston Caliche: Excavation, Base Rock and Compaction
Houston soil presents a specific challenge for artificial grass: much of the area sits on caliche, a hard, calcium-rich layer that drains poorly and can stay soggy for days after a heavy rain. Standard clay soil does the same. If you install turf on unprepped ground or on a thin, loose base, water will not drain, the infill will stay wet, odor will build (especially in a pet area), and the turf will fail. Base preparation means excavating the poor soil, removing it or breaking it up, and replacing it with a free-draining material that is then compacted firmly. Typically this means three to four inches of decomposed granite or crushed base rock, laid in lifts and compacted with a plate compactor, each lift pressed down before the next goes on. The compaction is not optional; an uncompacted base causes dips, puddles, and a soft feel underfoot.
The base also has to be graded so water runs away from the house, the pool, and any low spots. On a flat lot in Houston, this might mean a subtle slope that you cannot see but water can feel. Before we start digging, we call for a Texas 811 utility locate to mark public water, gas, and electric lines. Private lines like irrigation, low-voltage lighting, and pet-fence wires are not marked by 811, so you need to tell us where they are. If a yard has a real water problem, standing water that does not drain even after a few days, then drainage has to be fixed before turf goes down, or we will not take the job. A good base is the difference between turf that lasts and turf that becomes a swamp.
Artificial Grass Drainage and Underlay: Perforated vs Fully Permeable
Drainage in artificial turf is a two-part system: the turf itself and the base underneath. The turf backing is either perforated or fully permeable. Perforated backing has small holes that let water through at a certain rate, measured in gallons per hour per square foot. Fully permeable backing has no holes; water flows through the material itself. Both work, but they perform differently depending on what is underneath and how hard the rain falls. In Houston, we get afternoon thunderstorms that dump an inch of rain in 20 minutes, and we have humidity that keeps things damp. A pet area or dog run gets wet from urine, spills, and cleaning. The turf has to drain fast enough that water does not sit on the surface, and the base underneath has to drain fast enough that water does not pool below the turf.
A fast-draining turf still fails on a base that does not drain. This is where the base rock and compaction matter. If the base is loose or if the soil underneath is clay, water will back up into the turf, and you will have puddles, smell, and soft spots. On hard surfaces like concrete, a draining underlay or pad sits between the slab and the turf, and edge drainage (a channel or a slope) moves water away. Do not accept a spec that does not name the turf's drainage rate and does not specify the base depth and material. When you get a quote, ask what the drainage rate is in gallons per hour per square foot, and ask how the base will be prepared. A good installer will explain both and put it in writing.
Seams, Nails, Edging and Power Brooming
The finishing details are where you can tell a real installer from someone who lays turf and leaves. Seams are the places where two pieces of turf are joined. A proper seam is made by aligning the grain of the turf (the direction the fibres lean), overlapping the edges slightly, applying a flexible seam adhesive to a seam tape, pressing the tape down, and then cutting away the excess turf so the seam is tight and invisible. A visible seam, one you can see or feel, means the work was rushed or the adhesive was not applied right. A lifted seam, where the edges start to peel up, means the tape failed or the ground moved. Both are signs of poor workmanship.
Edges are finished with bender board (a flexible plastic or metal edge) that is secured to the ground and holds the turf perimeter in place. The turf is cut tight to pavers, pool decks, and other hard surfaces so there are no gaps where water can pool or debris can collect. After the turf is down and the infill is spread, a power broom is used to stand the fibres upright and distribute the infill evenly. This step makes the turf look full and helps it drain properly. Nails or staples hold the turf down at the perimeter and along seams, spaced at intervals that keep the turf from shifting. A good installer will power broom the whole area, clean up all debris, and haul off the old turf and soil. These details take time, but they are what make the turf last and look right.
What a Written Turf Spec Should Include
Before you sign a contract or make a payment, you should have a written specification that names every material and depth. This is not a sales document; it is a contract that protects you and holds the installer accountable. A complete spec includes the turf product and fibre type (polyethylene, nylon, or a blend), the face weight in ounces per square yard, the pile height in inches, the backing type and drainage rate in gallons per hour per square foot, the infill type and amount in pounds per square foot, the base material and depth in inches, the base compaction method, whether a weed barrier will be used, the seam method and location, the edging type and how it will be secured, cleanup and haul-off of old material, and the workmanship warranty period (typically one to three years on the installation only). The spec should also note any site-specific conditions, like the grading plan or the location of private utilities.
A written spec is your proof that the work was done as promised. If the turf settles or fails, the spec shows what was supposed to be underneath. If a seam lifts or an edge comes loose, the spec shows what the installer committed to. Do not accept a verbal quote or a price per square foot without this detail. We provide a written spec with every free estimate, and we can walk you through it. When you compare quotes from different installers, compare the specs, not just the prices. A cheap price on thin base, low infill, and no underlay will cost you more in repairs later. A spec that names the product, the face weight, the pile height, the infill amount, the base depth, and the compaction method is a sign that the installer knows what they are doing and will stand behind the work. For details on pricing and what to expect, see our pricing page, or call us at (346) 202-2866.