San Clemente Insulation and Spray FoamSan Clemente Insulation and Spray Foam

Closed-cell foam insulation in San Clemente CA - one layer that seals and insulates

Room over the garage too hot, or drafts you can't track down? Closed-cell foam seals the leaks and insulates in the same pass.

Services
16
Service areas
12
Unfinished room with cream spray foam insulation on walls and ceiling and brown batts fitted between studs on the far wall.

Get your closed-cell foam estimate

Bring your questions. You'll see what's in your attic before anyone talks foam.

Request an estimate

Is closed-cell spray foam worth it for my house?

Closed-cell foam insulation in San Clemente is a dense foam sprayed onto a roof deck, wall or crawl space that sets up hard, so one layer insulates, seals air leaks and, at its usual thickness, keeps moisture vapor from passing through. You'll need to be out of the house while it's sprayed, so plan for some time away.

Most people call because a room won't stay comfortable, like the room over the garage that's hot all summer, or because a remodel has the walls or roof open and they want to do it once. The price mostly comes down to how much foam goes up, which is the area times the thickness, plus how hard the space is to reach and whether old insulation has to come out first through insulation removal. The schedule turns on whether the roof needs work before we start and when your family can be out of the house, and your estimate lays each step out in order so you can see what comes first and why.

How we install closed-cell foam insulation

I start by going into the attic or crawl space with you to look at what's there now, how many inches are already up, whether any of it is wet or full of droppings, and where the ducts run. Then we talk through whether you need what closed-cell does, because foam costs more than sealing the gaps and topping up loose fill, and that cheaper route usually wins unless your ductwork lives in the attic. If the foam is going under the roof deck, I check the roof for leaks first, because foam sprayed over a leak hides it while the water keeps working on the wood. On the day, our crew covers what needs to stay clean, pulls out any soaked or dirty material so the problem doesn't stay under the new layer, sprays full thickness out to the edges where thin coverage usually shows up, and cleans up before we leave.

Closed-cell isn't the only foam we spray. Open-cell foam insulation is softer and goes on thicker, and when your house needs the air seal without the moisture block, it's often the option that covers it for less. Property managers call us for commercial insulation too, and the same checks come first on a building as on a house.

Planning closed-cell foam insulation in San Clemente

Whether a closed-cell job needs a permit depends on the work, so we don't assume either way. When a job calls for one, we pull it as the licensed contractor and handle the inspections, and if we're not sure, we check with the city before we start. If you'd like to ask yourself, the city's Community Development Liaison answers permit questions and can set up an in-person appointment at 949-361-6100. The state energy code sets insulation standards by climate zone, so what your house has to meet follows the zone it sits in. When you're comparing contractors, California's licensing board has its own class for insulation work, C-2, covering anyone who installs insulation for heat or sound control.

Most of the calls we get here are older houses, remodels and that same room over the garage. We see the same houses on jobs in Dana Point and San Juan Capistrano, and we work in cities across south Orange County beyond the ones with their own pages.

Why call us for closed-cell foam

  • I come out and write it

    I come out to look at the job and write the estimate myself, and our own crew does the work. You're talking with the person who has actually been in your attic, not someone working from a form.

  • Back in the trade since 2020

    I learned insulation on crews when I was young, then came back in 2020 to start this business, and what stood out was how often insulation got piled on top of problems nobody fixed. That's why every job starts with the checks, and why I'd rather tell you about a problem than cover it up.

  • Licensed and insured, not owner-builder

    San Clemente strongly discourages owners from taking the owner-builder route, because the owner then carries the liability for bad work by whoever they hire. We're licensed and insured, so you can hire us as the contractor and leave that route alone.

Phone
(949) 312-6336
Hours
Mon–Fri: 8 AM–10 PM, Sat–Sun: 6 AM–9 PM
Location
San Clemente, CA 92672

On closed-cell, the work that matters most is the checking before any foam goes up. Call or send the form and I'll come take a look.

Get a written closed-cell foam estimate for your house

Send the form with the area you want insulated, any roof leaks you've had and any health concerns in the house, like asthma. We'll reply within one business day to set a time, and I'll come out, look at the job and write a free estimate that walks through each step. There's no obligation.

Location
San Clemente, CA 92672
Hours
Mon–Fri: 8 AM–10 PM, Sat–Sun: 6 AM–9 PM
Credentials
Licensed and insured.

Frequently asked questions

How much does closed-cell spray foam insulation cost in San Clemente?

In Orange County, closed-cell spray foam insulation usually costs about $1 to $1.60 per board foot, which is what the work typically runs in the area, not a quote from us. A board foot is one square foot of foam one inch thick, so a 3,000 board foot job covers 1,000 square feet at 3 inches. Your estimate writes out each step so you can see what you're paying for.

How long does my family need to stay out of the house after closed-cell foam is sprayed?

Everyone should be out of the house while the foam is sprayed, and some foam makers recommend waiting 24 hours before coming back, though it varies by product. That wait is the re-entry time, when it's safe for people and pets to return. We'll tell you which foam we're using so you can see its maker's re-entry time and plan around it.

What is the best way to air seal a vented attic, closed-cell or open-cell foam?

Closed-cell does the job with a much thinner layer. In a vented attic it can serve as the air barrier at 1.5 inches thick, while open-cell foam needs 5.5 inches. Thickness isn't the whole price story, so we'd talk through both for your attic.

Is spray foam insulation safe if someone in my house has asthma?

If someone in your house has asthma, it's worth a careful look before choosing spray foam. Federal guidance advises people with skin conditions, respiratory allergies, asthma or a past reaction to isocyanates, the chemicals that react to form the foam, to review the product information carefully, and those households may want to weigh other kinds of insulation. Tell me at the estimate and we'll go over the product sheet and other options together.

Does closed-cell spray foam need to be covered after it's installed?

Sometimes, and the product decides. Open-cell and closed-cell foam are both considered combustible, and federal guidance for foam under an existing roof deck calls for a thermal or ignition barrier, a fire-resistant covering such as gypsum board or a coating, where the product or the code requires one. Some foams need no covering, so we go by the maker's instructions and the code for your job.

How well does closed-cell spray foam insulate per inch?

Typical closed-cell foam is rated R-6 per inch, R-value being how well insulation slows heat. It's hard and rigid once it sets, and at its usual thickness it also works as a vapor retarder, a layer moisture vapor basically can't get through. That moisture block is a big part of what you pay extra for, so it makes the most sense where you need it.

  • Open-cell foam insulation

    A lighter, thicker foam worth comparing when you want drafts stopped but don't need moisture held back.

  • Commercial insulation

    For property managers and owners of offices, shops and rentals who want the space checked before anything gets sprayed.

(949) 312-6336Request an estimate