What Anaheim Homeowners Say About Walt’s Insulation
Reviews matter because insulation is one of those things you don’t think about until the electric bill arrives or the upstairs bedroom won’t hold a temperature. Homeowners in Anaheim, Fullerton, Orange, and Garden Grove tell us the same thing: they called because something felt off, and they stayed because someone actually showed up, explained the problem in plain English, and fixed it. That’s how Walt Brenner has built the business since 2000. We don’t push for reviews. We earn them one attic at a time, and the feedback below reflects what people tell us after the truck pulls away.
Recent Reviews
“Our upstairs bedrooms were ten degrees warmer than the rest of the house every July. Walt’s crew came out, found gaps in the attic floor around the can lights, and blew in a full layer of Owens Corning fiberglass. The difference was immediate. Our AC doesn’t run half as much, and the bedrooms actually match the thermostat now.”
Henry P., Anaheim Hills
“I’d gotten three quotes for crawl space encapsulation in our 1960s ranch over in West Anaheim. Walt’s wasn’t the cheapest, but the estimate was the most detailed and they were the only ones who mentioned the rusted vent screens and the floor joist moisture readings. They installed the vapor barrier, sealed the vents, and left the crawl space cleaner than I’ve ever seen it. Nobody else even talked about rodent proofing.”
Adriana M., West Anaheim
“We had old cellulose insulation from who knows when, full of dust and rat droppings. Their crew removed everything, sanitized the attic, air-sealed the top plates, and installed new Rockwool batts. Walt Brenner himself came out to do the final walkthrough and pointed out two spots where the original estimate undercounted coverage, then added insulation there at no extra charge.”
Carmen S., The Colony
“After we moved into our place off La Palma, every room felt drafty and our heating bill in January was absurd. Walt’s did an energy audit with a blower door and thermal imaging. Turned out the walls had zero insulation in half the exterior. They dense-packed the walls with Knauf fiberglass from the outside, patched everything, and repainted. You’d never know they were here, except the house holds 72 degrees with half the effort.”
Beatriz G., Southwest Anaheim
“I called at 9pm on a Sunday because a raccoon had torn through a soffit and shredded a section of attic insulation. A live person answered the phone, not a machine. They had a technician here Monday morning, removed the contaminated insulation, sealed the entry point, and reinstalled fresh blown-in fiberglass. The whole thing was handled in one day and they knocked $40 off the repair because it was over $200.”
Henry P., Anaheim Hills
“We used the free second opinion offer because another company quoted us $11,000 for spray foam in the attic. Walt’s tech said our roofline didn’t need foam at all, that a ventilated attic with R-38 blown-in fiberglass would do the job for a third of the cost. They could have quoted us the foam. Instead they saved us seven grand. That’s the kind of honesty that gets you my business for life.”
Adriana M., West Anaheim
How Much Does Insulation Cost in Anaheim?
Most attic insulation projects in the Anaheim area run between $1,800 and $6,500 depending on square footage, existing insulation condition, and access. Here’s what we typically see across Orange County homes.
- Attic insulation (blown-in fiberglass or cellulose, 1,200 sq ft): $2,000-$3,400
- Attic air sealing + insulation combo: $2,800-$4,800
- Spray foam attic (open cell, 1,200 sq ft): $4,000-$7,500
- Crawl space encapsulation with vapor barrier: $3,500-$9,000 depending on access height and square footage
- Wall insulation (dense-packed, retrofit): $2,500-$6,000 depending on exterior finish
- Insulation removal and replacement: $2,200-$5,500 including disposal and sanitizing
- Attic cleaning with rodent proofing: $900-$2,400 depending on contamination level
These are real ranges from Anaheim jobs we’ve done recently. The only way to get an exact number is to have someone climb into your attic and measure. Estimates are free, and there’s no trip charge anywhere in our service county. Call (657) 214-8224 and we’ll send a technician out.
Why Customers Trust Us
You probably noticed a pattern in those reviews. People mention the same things: the live person answering the phone, the technician who explained what was wrong and what it would cost, and the fact that we didn’t try to sell them something they didn’t need. That’s the local advantage. Walt Brenner owns this business. His name is on the building, his license number is published, and our address isn’t a P.O. box. The technicians who show up at your door are background-checked and wear uniforms, so you know who you’re letting into your home. We back every installation with the Done Right Promise: if it’s not done right, we make it right. Not for a year, not for five years. For as long as you own the home. We install products from Owens Corning, Rockwool, Icynene, Johns Manville, CertainTeed, Demilec, Knauf, and GreenFiber, and we’ll tell you which one fits your house, your budget, and your roof design. That’s the way we’ve done it since 2000. Call (657) 214-8224 and you’ll get a real person, a straight answer, and a quote you can hold us to.
Written by Walt Brenner, Owner at Walt’s Insulation, serving Anaheim since 2000.