Your lawn isn’t sick.
Your soil is.
Dirt Deep is San Antonio’s soil-first lawn service. We rebuild the soil under your lawn — the biology, the structure, the moisture — on a year-round program, so your grass comes back greener, holds water better, and survives Texas heat.
Built on AquaLoch® soil technology · Veteran-owned roots · Serving San Antonio’s premium neighborhoods
Mike Forostoski — founder of the AquaLoch program Dirt Deep is built on — explains the idea in 30 seconds: “Your lawn’s not dying because of your grass. It’s dying because of your soil.”
Most lawn problems start below the surface
Starved, compacted soil
Southern lawns suffer from low nutrients, low moisture, low biology, and compaction. Compacted soil starves roots: they can’t grow deep, can’t hunt for water, and the lawn can’t hold moisture where it’s needed.
What builders bury
In San Antonio’s new neighborhoods, there’s often foreign material buried in the soil: builders leave tile, shingles, sheetrock, and bricks under as little as two inches of topsoil. Your grass grows — until the roots hit it.
The salt cycle
Salt-based fertilizer programs force two weeks of green, then the lawn crashes without constant re-application and heavy watering — and the salt itself dries and compacts the soil further.
The screwdriver test
Try it yourself: push a screwdriver into your lawn. If you need a hammer, your soil is the problem. On a treated lawn, the probe slides through roughly ten inches of moist soil — by hand.
“Tired of throwing time and money at your lawn and not getting results? Most problems start below the surface. Fix your soil, fix your lawn.”
We start by finding out what’s actually under your lawn
Sampled and analyzed
Soil sampling and core samples, analyzed: what nutrients, biology, and moisture your soil has — and what’s working against it.
Debris, found and fixed
We locate dead spots caused by buried construction debris and, where needed, that material comes out and the lawn gets back to surviving status.
Radar for problem yards
For problem yards, full-yard ground-penetrating radar analysis is available through our vendor partners.
One honest recommendation
The program your lawn’s stage actually needs, at one monthly price, on a one-year plan. Whatever it takes to give you an optimal green season.
A program for every season — because soil work isn’t a one-time spray
The big push: nutrients and biology (new lawns get the heaviest biology), sampling and debris diagnosis, aeration to open the soil’s pathways, and growth that spreads out to shade the soil before the heat arrives.
We stop forcing growth — extra top growth just drinks water and burns. Summer is about keeping the lawn green and protecting the soil life underneath through peak Texas heat.
One strong recovery treatment as temperatures drop — repairing a summer of heat stress and compaction — then rebuilding the soil biology so your lawn captures winter moisture instead of going into winter dead.
The biology we’ve built stays alive under the surface, holding moisture and nutrients, so spring starts from strength instead of from zero.
The benefits are cumulative — every season builds on the last. That’s the difference between feeding the plant and feeding the soil.
Watch: Mike compares treated vs. untreated soil after a Texas summer (about a minute).
The best time to start was spring. The second-best time is right now.
Most people think fall lawn care starts when the temperatures come down. It doesn’t.
After months of heat stress on your grass, your soil, and your roots, waiting until mid-November is already too late. Starting now means rebuilding the soil — getting the biology going, capturing winter moisture — so your lawn rolls into an explosive growth spring instead of another season of catching up.
Fall slots are the ones that pay off in spring.
Mike, on camera: why fall is the start line, not the off-season.
Built with proven, biology-driven inputs
Organic Nutrients
Slow, steady fertility that feeds both plant and soil.
Carbon Systems
Better water retention and deep, healthy roots.
Biological Activators
Turn dead organic matter into plant-available nutrients.
Microbial Inoculants
Beneficial fungi & bacteria that build soil health.
Biostimulants
Natural compounds that accelerate growth and resilience.
Organic & pet-safe
Our blends are organic, and human- and pet-safe — with clear re-entry instructions after every visit.
Soil is a sponge
Healthier soil functions like a sponge. Per the USDA’s Natural Resources Conservation Service, each 1% increase in soil organic matter can help soil hold an additional 20,000–27,000 gallons of water per acre — water your lawn can actually use, instead of water that runs off.
One monthly price. One full year. Sized to your lawn.
Dirt Deep is a service, not a spray-and-go visit. Your program runs a full year — 12 scheduled treatments, every season included — at one monthly price set by your lawn’s size. Every tier is the same full soil-first program; the free Dirt Deep Analysis confirms your lawn’s size and stage, and the tier that fits, before you sign anything.
Up to 6,999 sq ft
7,000–10,000 sq ft
10,001–15,000 sq ft
15,001–20,000 sq ft
Over 20,000 sq ft? Your program is quoted individually — the assessment covers that too.
Always included
- A documented seasonal application on each scheduled visit
- Site observations from your technician
- Post-service instructions, every visit
- Account records of everything applied, and why
Honest extras
Core aeration is available as an add-on service. It opens the soil’s pathways so treatments get deeper, faster — we recommend it where the soil needs it and quote it separately. Never bundled silently.
Proof, not promises
No stock testimonials. No invented counters. What we can show you today is the real work, on camera: in the compaction video above, Mike probes an untreated lawn — the soil is so compacted it needs a hammer — then a treated lawn, where the profile holds moisture about ten inches deep and the roots run with it. That’s why treated lawns recover faster after back-to-back 100° days.
Customer stories will live here only with the customer’s permission and their real words — that’s the rule, and it doesn’t bend.
Questions, answered straight
How long until I see a difference?
The program is built for a full cycle — a year of seasonal treatments — because real soil change is cumulative. Most programs chase two weeks of green; ours builds season over season.
What if I stop after a season?
Your soil keeps the benefit. Unlike salt-based programs — where the lawn crashes when you stop — the biology we’ve built stays alive as long as it’s watered.
Is it safe for kids and pets?
Our blends are organic and human- and pet-safe, and every visit ends with clear re-entry instructions.
Do you mow or do sprinklers?
No — we’re the soil program. Mowing, irrigation, and drainage stay with you or your landscaper, and our technicians flag problems they see (including irrigation issues) instead of spraying over them.
Why does my new-construction lawn struggle?
Builders often bury debris — tile, shingles, sheetrock — under a couple of inches of topsoil. Grass looks fine until roots reach it. The Dirt Deep Analysis finds it with core samples.
What does the free assessment include?
A look at your lawn’s stage, soil sampling where needed, and your program tier confirmed — $109 to $185 a month by lawn size — before you commit to anything.
Is aeration included?
Aeration is available as an add-on. It opens the soil’s pathways so treatments get deeper, faster — we recommend it where the soil needs it and quote it separately, honestly.
Which neighborhoods do you serve?
San Antonio’s premium corridor — Boerne, Bulverde, Stone Oak, The RIM area, and the communities between US-281 and I-10 above Loop 1604.
I’m an HOA board member — how do we start?
With the complimentary demonstration treatment for your entrances and common areas, and a soil-health presentation for your board or residents. See For HOAs.
I run a lawn company — can I offer this?
Yes — that’s the partner lane. See For Lawn Companies and send the inquiry form.
Book your free Dirt Deep Analysis
A look at your lawn’s stage, soil sampling where needed, and your program tier confirmed — priced by lawn size, $109 to $185 a month — before you commit to anything.
Request your free lawn assessment
✅ Assessment requested — we’ll call to schedule.
Thanks — your request is in. We’ll reach out to schedule your free Dirt Deep Analysis and set your exact program price.