Roof decks with ductwork underneath
When ducts run through the attic, foam on the underside of the roof brings them inside the insulated space. In that case closed-cell usually beats adding more loose fill on the attic floor.
Closed-cell foam insulation in Hesperia CA - a dense layer that holds back moisture
Hot room over the garage, drafty floors or a damp roof deck? We spray a dense foam layer that insulates and seals in one go.
- Licensed and fully insured.
- Free quotes on site.
- Expect a reply within 1 business day.
What closed-cell foam does for your house
Closed-cell foam insulation is a dense, rigid spray foam that we put on roof decks, walls and crawl spaces in Hesperia, CA. At the thickness installers usually spray, it insulates and blocks nearly all moisture vapor in a single layer.
R&S Hesperia Insulation Company has been in business since 2013. Most of our closed-cell calls come from homeowners in Hesperia, Victorville, Apple Valley, Phelan and the other cities around it who have a hot room upstairs, cold floors or a power bill that keeps climbing.
The price depends on how many square feet we cover, how thick the foam goes on, how easy the space is to reach, and whether a roof leak or old insulation has to be dealt with first. The schedule depends on that roof repair, which always comes before any foam, and on when your household can be out of the house while we spray. When a job calls for a permit, we handle the paperwork with the city or county office and set up the inspections. I measure all of it at the estimate and put your number on paper there.
The owner writes your estimate
I come out myself, look at the space and write the estimate, so the person who prices your job is the one who has seen what's up there and what it'll take.
Our own crew does the spraying
We don't hand the job off to anyone else. Our crew sprays the foam, and I check the work before we leave so thin spots and missed gaps get caught right then.
Our promise on every job
Satisfaction guaranteed on every job. We've been in business since 2013, and we built our name by doing the prep right before any foam goes on.
How we prep and spray closed-cell foam
Closed-cell costs more than open-cell foam insulation, so I only recommend it where your house needs the moisture control it brings. If open-cell would do the job, or sealing the gaps and topping up the loose fill would, I'll tell you that at the estimate, even if it means a smaller job for us.
If the roof leaks, we get it repaired before we spray, because foam over a wet deck just hides the leak until the wood goes soft. When I come out, I look at the roof from below and ask about any leaks you've had. Once the roof is sound, our crew covers everything that has to stay clean, sprays the foam to the depth we agreed on, and keeps it even out to the edges, where it's easiest to leave thin.
We do the same work in shops, metal buildings and other spaces through our commercial insulation service, for owners who want a building that holds its temperature. The steps don't change. We fix what's wrong, seal it and spray it evenly, and we clean up before we go.
Where closed-cell foam earns its price
The room over the garage
Those rooms run hot or cold because air leaks through the garage ceiling and walls. Closed-cell fills the cavities and seals the gaps at the same time, so the room stays closer to the temperature of the rest of the house.
Crawl spaces that stay damp
Under a floor where moisture hangs around, blocking vapor matters as much as insulating. Closed-cell does both in one layer, which helps with cold floors in the rooms above.
Shops and metal buildings
Bare metal and open framing lose heat fast and collect condensation. Closed-cell sticks to both and seals as it goes, so the space holds its temperature.
Get a closed-cell foam estimate at your house
Send the form and we'll reply within one business day to set a time. I'll come out, look at the space myself and give you a free estimate on site, with no obligation to go ahead.
Tell us where it's going
List the areas you want insulated, such as the roof deck, the room over the garage or the crawl space. That way I come ready to measure the right spaces.
Mention the roof and any leaks
Tell us what shape the roof is in and whether it has ever leaked. A leak gets fixed before any foam goes on, and that changes the plan.
Note what's up there now
Tell us how many inches of insulation are already in place and how old the house is, if you know. Old or damaged insulation may have to come out first.
Closed-cell foam finish and layout examples
These photos show the kinds of foam finishes, depths and roof deck layouts we can go over together at your estimate.
Common questions about closed-cell foam
Here's what people in Hesperia usually ask about price, time out of the house, permits and who's allowed to do the work.
How much does closed-cell spray foam insulation cost in Hesperia?
In San Bernardino, closed-cell spray foam insulation usually costs about $1 to $1.50 per board foot, which is one square foot of foam one inch thick. That makes the depth we spray as important as the square footage, and any roof repair or covering over the foam is a separate cost. I'll measure your space and price it at a free on-site estimate.
What's the difference between closed-cell and open-cell spray foam?
Closed-cell is denser, insulates more per inch and stops moisture, and open-cell costs less to install. An older federal guide puts typical closed-cell at about R-6 per inch, R-value being how well insulation slows heat, and says that at the usual thickness it blocks nearly all moisture vapor. It costs more because it expands less and takes more material to fill the same space.
Do we have to leave the house during spray foam insulation?
Yes. Older EPA guidance says no one should be in the house while the foam is sprayed, and some foam makers recommend waiting 24 hours before residents come back. That wait, called the re-entry time, can vary by product, so plan a stay elsewhere for the family and pets, and I'll tell you which wait applies to the foam we use. Later on, tell any plumber or electrician not to heat or grind the foam, because the same guidance says that can give off toxic fumes.
Who can install insulation in California?
The state licensing board's C-2 insulation class covers installing any kind of insulation for temperature or sound control. State law also says all insulation sold and installed in California has to be certified as meeting the state's quality standards. We're licensed and fully insured, and the foam we spray has to meet that same rule.
Do I need a permit for spray foam insulation in Hesperia?
The City of Hesperia requires a building permit before construction or remodeling work starts, and the owner, the owner's licensed contractor or an authorized agent can get it. The city's Permit Center is where to ask whether your job needs one, and I'll check that when I see the work. If it does, we take care of the paperwork and the inspections, as covered above.
How much can an insulation contractor ask for up front in California?
On a California home improvement job, a contractor can ask for a down payment of no more than $1,000 or 10 percent of the contract price, whichever is less. Every other payment has to be listed in the contract and tied to work completed or materials delivered, so check for that before you sign with anyone.
Other insulation work that fits this job
Plan the foam with your roof repair
Planning roof work? Call (760) 713-8598 or send the form now, so the repair and the foam get done in the right order.