"From the historic Alsatian homes of "The Little Alsace of Texas" to the new builds and country properties along the Medina River, Daniel Windler and ATD Property Inspections bring a Master Plumber's eye and 35 years in the trades to every property around Castroville."
Castroville is one of the most distinctive small towns in the San Antonio area — known as "The Little Alsace of Texas" for the Alsatian settlers who founded it in 1844 and the beautifully preserved 19th-century stone and timber homes that still line its streets. Set along the Medina River just west of San Antonio in Medina County, Castroville pairs its rich historic core with newer subdivisions and country acreage properties, many on private wells and septic systems. ATD Property Inspections — owned and operated by Daniel Windler, a TREC Licensed Professional Inspector (#21665) and licensed Master Plumber — serves home buyers, sellers, and investors throughout Castroville and the surrounding Medina County communities.
Daniel brings 35 years of hands-on experience as a licensed Master Plumber and construction professional to every Castroville inspection. From the town's historic Alsatian homes to newer construction and rural acreage properties, he's worked on homes of every era and knows exactly what to look for. A U.S. Marine veteran, Daniel handles every inspection personally and treats each home as if he were inspecting it for his own family — explaining his findings in plain language, with no unnecessary alarm and no sales pressure.
Castroville's mix of historic and rural properties brings challenges a local expert knows to watch for. Many homes outside town sit on private wells and septic systems, and as a certified septic inspector and licensed Master Plumber, Daniel is ideally equipped to evaluate them. The area's older stone and timber homes carry their own era-specific concerns — aging plumbing, electrical, and structural systems — while the expansive clay soils and Texas heat common to the region stress foundations, supply lines, and roofs alike. Daniel's specialty inspections — sewer camera, hydrostatic testing, WDI/termite, septic and well/water, and pool and spa — cover the systems a standard inspection often misses.
That's exactly why Castroville-area homeowners choose ATD Property Inspections. You get a TREC Licensed Professional Inspector (#21665) and licensed Master Plumber whose well, septic, and plumbing expertise fits the area's rural and historic properties perfectly — plus an inspector who personally reviews the home and the findings with you. When you're making one of the largest investments of your life in a community as unique as Castroville, local expertise makes all the difference. Call or text Daniel at 210-216-4322 to schedule your Castroville inspection.
Every inspection is handled personally by Daniel — thorough, clearly documented, and explained in plain language. Here's what ATD offers across Castroville and the surrounding area:
A complete top-to-bottom evaluation of a home or commercial property's structure, systems, and safety — following TREC standards.
Independent inspections at key stages of a new build, catching issues before they're sealed behind drywall.
Licensed Wood Destroying Insect inspections that catch active infestation and prior damage, with an official report.
Septic system and private water well inspections from a licensed Master Plumber and certified inspector.
Certified pool and spa inspections covering equipment, structure, and safety before you take ownership.
Sewer camera video, hydrostatic testing, and leak detection — specialty inspections only a Master Plumber can offer.
Veteran-owned and locally operated — serving Castroville and the surrounding Texas communities throughout the Greater San Antonio area.
Answers to the most common questions Castroville-area homeowners ask before scheduling a property inspection.
Yes. Many Castroville and Medina County properties run on private wells and septic systems, and as a licensed Master Plumber and certified septic inspector, Daniel evaluates well function, water flow, the septic tank, and the drain field — essential for rural and acreage homes.
Absolutely. Daniel's 35 years in construction and plumbing mean he understands older stone and timber construction — and knows what to look for in Castroville's historic homes, from aging systems to past repairs.
An ATD inspection is a complete top-to-bottom evaluation of the roof, foundation, structure, electrical, plumbing, HVAC, attic, crawlspaces, and interior and exterior — following TREC Standards and explained in plain language.
The fastest way is to call or text Daniel directly at 210-216-4322, or use the form on our contact page. We'll find a time that fits your closing timeline and get your inspection on the calendar.
Based in San Antonio and serving the surrounding Texas communities. Click any community below to learn more about ATD Property Inspections there.
Call or text Daniel today • Veteran-Owned • TREC #21665 • Licensed Master Plumber • Serving Castroville & Greater San Antonio