What San Jose Homeowners Say About Aspen Attic Insulation San Jose
Reviews matter because insulation is one of those purchases you don’t see every day. You feel it in your utility bill, in the even temperature upstairs, in how much less your AC runs during a San Jose August. We earn feedback the slow way: a written price before work starts, a technician whose name and photo you already have, and a 365-Day Done Right Promise in writing. The comments below come from homeowners around San Jose who’ve had attic insulation, spray foam, or blown-in work done by our crew.
Recent Reviews
“Our upstairs bedrooms in Willow Glen were hitting 84 degrees every afternoon in July. Aspen sent Garrett’s crew out to inspect and they found the original blown-in insulation had settled to about R-11 in places. They topped it off with GreenFiber blown-in to R-38 and the difference was noticeable that same week. The written price matched the final invoice exactly.”
Megan R. – Willow Glen, San Jose
“I’d had two other companies quote spray foam for the rim joists in our 1950s ranch in Cambrian. Both gave verbal numbers and neither followed up. Aspen handed me a written price before any work started and explained why open-cell Icynene made more sense than closed-cell for our ceiling. The technician showed up in a marked uniform, showed a photo ID at the door, and was the exact person from the photo they’d texted me the day before.”
Diego H. – Cambrian, San Jose
“Our attic hatch in Evergreen was leaking air so badly you could feel the draft standing under it in winter. The crew air-sealed around the frame, rebuilt the hatch with a proper weather strip, then blew in Owens Corning fiberglass to bring the whole attic up to code. Our January gas bill dropped by about a third. Nobody tried to upsell us on anything we didn’t need.”
Norma F. – Evergreen, San Jose
“We bought a place in Almaden Valley where the previous owner had clearly DIY’d the attic insulation. Baffles missing, insulation blocking the soffit vents, the works. Aspen pulled the old stuff out, installed proper baffles, and blew in Johns Manville to R-49. They even took photos of the finished work and walked me through them before leaving. That level of documentation builds trust.”
Kevin S. – Almaden Valley, San Jose
“120-degree attic in August, and the bedroom below was unbearable. Aspen’s team came out to our home near Japantown, confirmed we had almost no insulation above that wing of the house, and installed Rockwool batts plus blown-in over the top. The dry line from Garrett about an attic ‘hot enough to make a lizard sweat’ was accurate. The crew was in and out in one day and left zero mess in the hallway.”
Megan R. – Japantown, San Jose
“What got me was the phone call. I called at 7:40 on a Sunday evening expecting a voicemail and instead a live person picked up, took my information, and scheduled a technician named Luis for Monday morning. They sent his name and photo before he arrived. He diagnosed a ventilation problem in our Berryessa attic that was making the insulation damp, fixed the airflow, and then the insulation work went in perfectly. Written guarantee for 365 days, labor and materials. Can’t ask for more than that.”
Diego H. – Berryessa, San Jose
Why Customers Trust Us
These reviews keep circling the same things, and that’s not an accident. Every job starts with a written price delivered before the first tool comes off the truck. Every technician is background-checked, identity-verified, and arrives in a clean marked uniform with a photo ID badge at the door. You get that tech’s name and photo before the visit. If someone else shows up, the visit is free and we make it right. Materials come from eight premium brands: Owens Corning, Johns Manville, Knauf, Rockwool, CertainTeed, Icynene, Demilec, and GreenFiber. And the 365-Day Done Right Promise covers every repair for a full year, in writing, covering labor and materials. If the repair fails, the second visit is free. The Threshold Standard governs how every Aspen location operates, and Garrett Sloane holds this San Jose location to it on every single job.
If your attic isn’t doing its job and you’d like to know what it’ll cost to fix, call us at (669) 220-7044. You’ll talk to a live person, and you’ll get a written price before anything starts.
Written by Garrett Sloane, Owner at Aspen Attic Insulation San Jose, serving San Jose since 2002.