Johns Manville Insulation Removal & Replacement in Huntington Beach: What to Know First
We remove and replace Johns Manville insulation in Huntington Beach homes, typically in one to two days depending on attic size and contamination level. Most Johns Manville removal and replacement jobs run between $1,800 and $5,500 before any discounts, and we give you the exact price before work begins, not after. If your Johns Manville insulation is water-damaged, rodent-soiled, or simply underperforming after years of coastal humidity, call (657) 222-2148 and a live person will answer.
This page is for Huntington Beach homeowners who bought or inherited Johns Manville insulation and now need it gone and replaced right. We’ll walk through why John Manville products fail in our climate, what removal actually involves, and what you can expect to pay. Walt Brenner has been doing this work since 2000, and we’ve pulled Johns Manville batts and blown fiber out of attics from Bolsa Chica to the State Beach corridor.
How Johns Manville Products Fail - and How We Fix Them
- Water-soaked JM ComfortTherm batts lose R-value fast. ComfortTherm is Johns Manville’s kraft-faced batt line with the plastic wrap. In Huntington Beach attics with poor ventilation, that wrap traps moisture against the fiberglass. Once the batts are saturated, the R-value drops and the facing starts peeling away. We remove the entire affected area, dry and treat the framing if needed, and replace with fresh JM batts or an equivalent from Owens Corning or Knauf.
- Attic Protector blown fiber settles badly near the eaves. JM’s Attic Protector loose-fill is common in older Huntington Beach homes, and after 10 to 15 years it settles unevenly, especially near soffit vents where coastal air moves through. That leaves 3 to 4 inches of dead air along the perimeter. We remove what’s left, air-seal the attic floor, and reblow to an even R-38 depth across the whole attic.
- Rodent damage turns JM Spider insulation into a health hazard. Spider is the JM spray-in fiberglass with a custom adhesive. In Huntington Beach, roof rats and mice burrow through it, shredding the batts and leaving urine and droppings throughout. This is the most common reason we do full removal. The contaminated material comes out, the attic gets sanitized, and we push homeowners toward a fresh JM batt or blown system.
- Vermiculite from the 1950s and ’60s sometimes carries asbestos. Some Huntington Beach houses built between 1950 and 1970 have vermiculite insulation, which Johns Manville sourced from the Libby, Montana mine. That material can contain asbestos. We don’t touch it until it’s tested. If the test comes back positive, we refer it to a licensed asbestos abatement contractor. If it’s clear, we remove it and replace it with modern JM blown fiber or batts.
- JM faced batts installed paper-side-down trap moisture against drywall. We see this all the time in Huntington Beach attics where a previous contractor installed Kraft-faced Johns Manville batts with the facing toward the living space. The paper becomes a vapor barrier on the wrong side, and over a humid summer, that facing gets musty and the drywall below starts to stain. We pull the batts, inspect the drywall, and reinstall with either unfaced JM batts or a blown system that doesn’t have that problem.
Our Johns Manville Insulation Removal & Replacement Process
- 1
Call and talk to a person. You call (657) 222-2148. A live person answers, 24/7. We ask a few questions about your attic, your insulation, and what you’ve noticed. Then we set a time to come look.
- 2
We inspect the attic and test if needed. A background-checked technician shows up in uniform, goes up, and figures out exactly what kind of Johns Manville product is up there and why it’s failing. If there’s any chance of vermiculite or asbestos, we test before touching anything.
- 3
You get a fixed, itemized price. Before work starts, you’ll see exactly what we’re removing, what we’re replacing it with, and what it costs. No change orders, no surprises after the fact. If you already have a written estimate from another company, we’ll give you a free second opinion on it.
- 4
Removal and attic prep. We remove the old JM material, bag it, and haul it. Then we air-seal the attic floor gaps, can lights, and top plates. This is where most insulation jobs fall short, and it’s the difference between a house that stays cool in August and one that doesn’t.
- 5
Replacement with the right product. We install fresh Johns Manville, Owens Corning, Knauf, or Rockwool depending on your attic and your budget. We don’t push one brand. We tell you what works for the way your house breathes in Huntington Beach, and we install it correctly.
- 6
We walk you through it, and we guarantee it. After the job is done, we show you the attic. You see what you paid for. And every job carries our lifetime Done Right Promise. It’s simple: if it’s not done right, we make it right. No runaround.
What Johns Manville Insulation Removal & Replacement Costs in Huntington Beach
Here are the three scenarios we quote most often in Huntington Beach:
| Job Type | Typical Price Range |
|---|---|
| Attic batt removal and replacement (JM ComfortTherm or similar), up to 1,200 sq ft attic | $1,800 – $3,200 |
| Rodent-contaminated JM blown fiber removal, sanitation, and new blown fiber | $2,800 – $4,800 |
| Full JM removal plus air sealing plus new blown or batt system, larger attics | $4,200 – $5,500 |
What moves the price: attic square footage, how much material needs to come out, contamination level, and whether you need air sealing or extra rodent proofing. Every quote includes removal, disposal, materials, and labor. Seniors and veterans get 10% off, always. Call (657) 222-2148 for an exact quote, estimates are free and there’s no trip charge anywhere in our service county.
Why Huntington Beach Homeowners Call Walt’s Insulation for Johns Manville Work
We’re the one down the road, not an 800 number. Walt Brenner started this company in 2000 after learning the trade at St. Philip’s College back in San Antonio, and he’s been pulling bad insulation out of Southern California attics ever since. When you call, a live person answers. The technician who shows up is background-checked, uniformed, and works for us, not a subcontractor. We’ve been doing Johns Manville removal in Huntington Beach long enough to know exactly what that coastal air does to JM batts and blown fiber over time. And if you want something other than Johns Manville going back in, we install Owens Corning, Knauf, Rockwool, and Reflectix radiant barrier too.
Good insulation shouldn’t be something you ever have to think about again. That’s what we aim for.
FAQs
Most Huntington Beach jobs are scheduled within 5 to 7 business days of the inspection, and removal plus replacement is usually finished in one or two days. For urgent situations like rodent contamination or water damage, we do our best to get a crew there faster. Call (657) 222-2148 and we’ll give you a realistic date, not a vague window.
No. Johns Manville’s insulation warranties apply to the product itself, not to removal. If the insulation is damaged, contaminated, or no longer performing, removing it does not trigger a penalty. As an independent Johns Manville service provider, we’re not bound by JM’s dealer network rules, which means we can remove and replace without worrying about a manufacturer rep getting involved. If you have an active warranty claim, we’ll document the condition of the material before removal so you have evidence if you choose to pursue it.
Blowing new insulation over old is cheaper upfront, and sometimes it’s the right call. If the JM attic fiber is dry, rodent-free, and just settled, we can top it off without full removal. But if there’s contamination, moisture, or the old material is breaking down, layering over it just seals the problem in. We’ll tell you which one your attic actually needs. In Huntington Beach, where roof rats are a fact of life, we lean toward removal more often than not. Call (657) 222-2148 and we’ll give you a straight answer.
You need removal if the insulation is wet or visibly stained, if you smell rodent droppings in the attic, if you’ve had a leak, or if the material has settled down below the top of your ceiling joists. Those are the four signs we look for on every Huntington Beach inspection. Any one of them means the insulation isn’t doing its job and probably hasn’t been for a while.
Yes. If we find vermiculite in a Huntington Beach home built before 1970, we stop and have it tested before any removal happens. If it tests positive for asbestos, we refer you to a licensed abatement contractor and don’t touch it ourselves. That’s the safe, legal way to handle it, and we’ve been doing it that way since day one.
Written by Walt Brenner, Owner, Walt’s Insulation at Walt’s Insulation, serving Huntington Beach and nearby areas.