Johns Manville Wall Insulation Nationwide | Walt’s Insulation

Johns Manville Wall Insulation in Huntington Beach: What to Know First

Johns Manville wall insulation in Huntington Beach typically runs $1.75 to $4.25 per square foot installed, with most full wall retrofit jobs in Surf City landing between $2,400 and $7,800 depending on whether we’re doing injection foam or drill-and-fill. We complete most wall insulation jobs in one day, and we’re an independent Johns Manville service provider, so we install and service their products without being tied to a corporate playbook. This page is for Huntington Beach homeowners who have Johns Manville insulation already in their walls, or who are considering it for a new project. Call (657) 222-2148 any time: a real person answers, and estimates are free.

Call (657) 222-2148

Key Takeaways

• We’re independently owned and operated since 2000. We install and service Johns Manville products but answer to you, not the manufacturer.
• Most Huntington Beach wall insulation jobs are done in a single day.
• Every job is covered by the Done Right Promise, our lifetime workmanship guarantee.
• We offer a free second opinion on any written estimate, no trip charge inside Orange County, and a permanent 10% discount for seniors and veterans.

How Johns Manville Products Fail - and How We Fix Them

Johns Manville makes a solid product line. But after 25 years of pulling insulation out of Huntington Beach walls, Walt Brenner and our crew have seen how even good materials behave badly when the coastal climate and time get involved. Here’s what we actually find:

• Compression in JM ComfortTherm batts. ComfortTherm is Johns Manville’s poly-encapsulated fiberglass batt, and it’s common in Huntington Beach homes built in the 2000s. The issue isn’t the fiberglass itself. It’s that the batts get compressed when wires, pipes, or outlet boxes get shoved in behind them. Compressed fiberglass loses a meaningful chunk of its R-value. We’ve measured R-13 walls performing closer to R-8 in homes near the Bolsa Chica wetlands. Our fix is to pull the affected batts, re-fluff or replace them, and use pre-cut pieces around obstructions instead of forcing one batt to do everything.
• Settling in JM Spider loose-fill wall systems. Spider is Johns Manville’s blown-in fiberglass product for open wall cavities, and it works well when installed at the right density. But we’ve opened walls in Huntington Beach where the installer blew it too light to save material, and it settled in the top third of the cavity within a few years. That leaves a big uninsulated band right at eye level. We correct this by dense-packing the cavity properly, checking the installed density against the bag coverage chart, not by guessing.
• Moisture wicking in JM Kraft-faced batts near the coast. Homes within a mile or two of State Beach deal with salt air and occasional fog that pushes humidity against exterior walls. The kraft paper facing on Johns Manville batts is a vapor retarder, not a vapor barrier, and over years it can wick moisture if there isn’t proper drainage behind the stucco or siding. In Huntington Beach we regularly find facing that has gone wavy and started separating from the batt. We replace it and check for the actual moisture source before closing the wall, because new insulation won’t fix a flashing problem.
• Over-cutting and gaps around JM AP Foil-Faced batts. This is a wall insulation detail that drives Walt a little nuts. AP Foil-Faced batts are supposed to be friction-fit, not stapled. When installers trim them even half an inch too narrow, the radiant foil is doing nothing and air moves right around the batt. We see this constantly in Huntington Beach garage walls and bonus rooms. Our fix is simple but labor-intensive: remove, re-measure, and fit each batt to the actual cavity width, not the nominal one.
• Improper injection foam technique with JM Corbond III. Corbond III is Johns Manville’s closed-cell spray foam, and it’s an excellent product when it’s installed right. When it’s not, you get voids and shrinkage pockets inside the wall that no thermal camera will show you until the wall is opened. We’ve corrected under-installed Corbond III in Huntington Beach additions where the foam didn’t fully expand because the installer sprayed it too cold. We’re trained on the proper substrate temperature range for this material, and we don’t cut corners on it.

Our Johns Manville Wall Insulation Process

1. 1
   Call and talk to a person. The phone rings at our shop, not a call center. We’ll ask about your house, your walls, and what’s making you think the insulation needs attention. If you have a written estimate from another contractor, we’ll give you a free second opinion.
2. 2
   On-site inspection. We check the walls with a thermal camera, look for existing JM product, and figure out what’s actually happening inside the cavity. In Huntington Beach, we also check for moisture intrusion from the marine layer and any signs of past termite or rodent activity before we insulate over it.
3. 3
   Straightforward quote. We tell you what materials we recommend, why we recommend them, and what it costs. No add-on surprises. Seniors and veterans get 10% off, always.
4. 4
   The install. Background-checked, uniformed technicians do the work. For injection foam, we drill and fill with care. For batts, we friction-fit and check every cavity. For open walls, we install to manufacturer spec, not to whatever’s fastest.
5. 5
   Cleanup and check. We clean the work area, walk the job with you, and make sure you know what was done and why.
6. 6
   The Done Right Promise. If something isn’t right, we come back and make it right. No runaround, no fine print. That’s the whole deal.

What Johns Manville Wall Insulation Costs in Huntington Beach

Your price depends on three things: how much wall area we’re treating, what method we’re using, and what condition the existing insulation is in. Here are honest ranges based on what we’ve done in Huntington Beach:

• Drill-and-fill injection foam (JM Corbond III or similar) in existing walls: $3.25 to $4.25 per square foot of wall area. A 1,200-square-foot exterior wall retrofits typically lands around $4,900 to $6,400.
• JM Spider dense-pack blown-in for open cavities: $1.75 to $2.60 per square foot.
• JM ComfortTherm batt installation in new construction or gutted walls: $1.60 to $2.50 per square foot.
• Insulation removal and re-installation (moisture or pest damage): add $0.80 to $1.20 per square foot for removal and disposal.
• Wall insulation inspection with thermal camera: free with any repair estimate.

What moves the price: two-story homes with vaulted wall sections cost more to access. Walls with old, packed-in insulation take longer to clear. And jobs near the coast sometimes need a moisture barrier detail that inland homes don’t. Call (657) 222-2148 for an exact quote. Estimates are free, and we don’t charge a trip fee anywhere in Orange County.

Why Huntington Beach Homeowners Call Walt’s Insulation for Johns Manville Work

We’re the one down the road. Not an 800 number, not a franchise. Walt Brenner started this business in 2000 after learning the trade in Texas and bringing it west. He’s been working Huntington Beach homes for years, from the Bolsa Chica neighborhood all the way out toward the State Beach corridor. When you call us about a Johns Manville insulation issue, you’re talking to people who know this product as well as anyone not on the manufacturer’s payroll. We also service other brands including Reflectix, Owens Corning, and CertainTeed, so if the right fix turns out to be something other than what you thought, we’ll tell you straight. And every job, whether it’s a $200 repair or a $7,000 wall retrofit, is covered by the Done Right Promise. Good insulation shouldn’t be something you ever have to think about again.

FAQs