What West Covina Homeowners Say About Walt’s Insulation
Reviews tell you what a brochure can’t. They show whether a company answers the phone, shows up on time, and stands behind the work once the truck leaves the driveway. We’ve been insulating homes in West Covina and the surrounding San Gabriel Valley since 2000, and the reviews below reflect what we hear most often: real people answering calls, technicians who respect your home, and a Done Right Promise that means something. That’s how a local company earns its reputation, one attic at a time.
Recent Reviews
“Our upstairs bedroom was always ten degrees hotter than the rest of the house. Walt’s crew came out, found gaps in the attic insulation we didn’t even know existed, and blew in Owens Corning fiberglass the same afternoon. The difference was immediate. My wife actually turned the thermostat up because she got cold for the first time in years.”
Darnell R., West Covina
“I got three quotes for spray foam in our crawl space. Walt’s wasn’t the cheapest, but they were the only ones who explained exactly what they’d do and why. They used Icynene and sealed the rim joists the way it should be done. No surprises on the bill. The free second opinion offer told me they weren’t afraid of comparison.”
Oscar H., Walnut
“Had insulation removed after rats made a mess of our attic. The technician was background-checked and wore a uniform, which mattered to me since I have two kids at home. They rodent-proofed the entry points, sanitized everything, and blew in fresh GreenFiber. Smell is gone, and I haven’t heard scratching since.”
Holly S., Covina
“Our energy bill was climbing every summer and the house never felt comfortable. Walt’s did a home energy audit and found air leaks around the recessed lights and attic hatch. They air sealed everything and added Knauf batting to bring us up to code. Bill dropped about $80 a month. I’m a skeptic and I’m impressed.”
Miguel F., West Covina
“I called at 7pm on a Tuesday expecting a voicemail. A real person answered and scheduled someone for Thursday. The tech walked me through every step of the radiant barrier install and showed me photos of the attic before and after. That Done Right Promise isn’t marketing speak, they actually follow through.”
Darnell R., La Puente
“We needed crawl space encapsulation because moisture was creeping up into our floors. Walt’s installed a vapor barrier and sealed the vents. The crew worked clean, which I appreciate in a hundred-year-old house. The 10% senior discount was honored without me having to ask. That’s how you keep customers in West Covina.”
Holly S., Glendora
Why Customers Trust Us
Walt Brenner founded this company in 2000, and the same principles that got us through that first decade still hold: answer the phone with a live person, show up when you say you will, and do the job properly the first time. Every review above reflects one of those commitments. The Done Right Promise, our lifetime workmanship guarantee, means if something isn’t right, we make it right with no runaround. We are not a franchise and not a call center. Our address is published, our license number is public, and Walt himself still walks job sites. When you call (626) 612-1532, a real person answers, any hour, any day. That’s the difference between hiring a contractor and hiring a neighbor. We’re the one down the road.
Written by Walt Brenner, Owner at Walt’s Insulation, serving West Covina since 2000.