Meet the San Antonio Team Behind Aspen Attic Insulation San Antonio
Most insulation companies send a crew. We send people you’ll actually recognize at the door, because you got their name and photo before they rang the bell. The San Antonio team has spent years crawling through attics in Alamo Heights, scraping fiberglass out of 1950s ranch homes in Castle Hills, and foaming open-cell cavities in Stone Oak new builds. What unites them isn’t a uniform. It’s a shared refusal to leave a job until the attic is right, the attic access is sealed, and the homeowner understands exactly what was done and why. Here’s who shows up.
Our People
Marcus T. – Lead Technician, 14 Years in Attics
Marcus started in residential insulation in 2011 and has spent the last nine years working San Antonio attics specifically, which means he’s spent roughly 2,000 hours in spaces that hit 140 degrees in August. That’s not a complaint. That’s his credential. He’s the technician we put on the hardest retrofits: tight 3:12 pitch roofs in Terrell Heights, older homes with knob-and-tube wiring to work around, vented-to-unvented conversions where the air sealing has to be meticulous. Marcus holds Owens Corning and Johns Manville installer certifications and is the in-house authority on air sealing before blown-in fiberglass. He keeps a small notebook in the truck, the paper kind, with attic diagrams he’s drawn over the years. Ask him about the 1920s bungalow in Monte Vista with the cedar-shake roof and he’ll tell you about the soffit venting they re-engineered there in a single afternoon.
Elena R. – Senior Installer, Spray Foam Specialist
Elena came to Aspen from commercial insulation, where she spent seven years applying closed-cell foam on metal building envelopes across Texas. That background matters because residential spray foam in San Antonio has to handle something commercial foam rarely faces: a homeowner’s living space directly below it, with their kids, their allergies, and their thermostat. She’s certified in Icynene and Demilec application and leads every two-component spray foam job we run in the San Antonio area. Elena is methodical about temperature and humidity readings before foam day, because foam reacts to substrate conditions in ways blown-in fiberglass never will. Outside of work, she rebuilds vintage bicycles and has strong opinions about San Antonio’s bike lane network. She’ll share them if you ask, but only after the foam has cured.
Daniel V. – Service Coordinator, The Voice on the Phone
Daniel has been answering our San Antonio phones for six years, and if you call at 2 a.m. with a raccoon that tore through your soffit and scattered insulation across the attic floor, Daniel is the person who picks up. No voicemail tree. His background is in HVAC dispatch, so he understands how insulation problems interact with air conditioning problems, which in San Antonio is roughly May through October. Daniel handles scheduling, material ordering, and the written price that goes out before any work starts. He’s also the one who sends you the technician’s name and photo before the visit, so you know exactly who’s coming. When a homeowner calls back with a concern, Daniel owns it until it’s resolved. He keeps a hotel-style bell on his desk that he rings when a job gets a five-star callback. It rings often.
Priya S. – Apprentice, Attic Prep and Blown-In Support
Priya joined the crew in 2024 after a career change from restaurant management, which means she came in with the unusual skill of staying calm in chaos that is not unlike a busy dinner service. She’s training under Marcus and Elena, learning blown-in installation from the ground up: hose management, density checks, coverage verification. In her first year, she’s already earned her OSHA 10 and has become the crew’s lead on pre-install prep, which means she’s the one sealing recessed light housings, flagging any electrical concerns, and making sure the workspace is protected before a single bag of fiberglass is opened. Priya is also our in-house material tracker. She knows exactly how many bags of GreenFiber went into the van and how many came back. That’s the kind of precision you want when you’re paying by the square foot.
One Standard, Every Job
Every technician who works under the Aspen Attic Insulation San Antonio name operates to what we call The Threshold Standard, a set of conduct and quality expectations set by the Threshold Group family that has governed this location since 2002. That standard covers the basics that somehow aren’t basic in this industry: show up in a clean, marked uniform. Show a photo ID badge at the door, unprompted. Verify identity before the homeowner ever sees a face. Deliver a written price before any work starts. And stand behind the work for 365 days, in writing, covering labor and materials, with a free second visit if anything fails. Marcus, Elena, Daniel, and Priya don’t get to opt out of any of that. Neither does the owner. Garrett Sloane, who owns Aspen Attic Insulation San Antonio, works the same standard as the day he started the location. It’s not a slogan on a van door. It’s the reason we send you the name and photo before the visit, and it’s the reason we answer the phone at midnight when a San Antonio attic turns into a problem.
Written by Garrett Sloane, Owner at Aspen Attic Insulation San Antonio. Call (361) 213-9499 to talk to Daniel or any of the team about your attic.