Spray foam insulation
Foam seals air as it fills, which helps in the room over the garage or an attic full of ducts. You'll know your re-entry time, when you can come back in, before we start.
Truetemp Corona Spray Foam Insulation is an insulation contractor based in Corona, CA. In Home Gardens, we seal and insulate attics, walls and crawl spaces, and pull out old insulation that's dirty or soaked.

Home Gardens isn't its own city. It's an unincorporated community, so the County of Riverside sets the building rules here, not a city hall. We're based in Corona and work here the same way we do in Norco and Riverside. The price mostly turns on how many inches are already up there, whether the old stuff has to come out first, how many gaps need sealing, and whether foam or loose fill is the right call. The schedule turns on removal, any foam that has to cure before you come back in, and whether the county wants a permit. I write both into the estimate after I've had a look in your attic.
Riverside County gets hot, dry Santa Ana winds every year that push sand and soil around. In an attic, that dust rides in through gaps around the hatch, pipes and light fixtures and settles into the insulation, so on a lot of houses here the sealing matters as much as the depth.
I come out myself with a flashlight and see what's actually up there before I write the estimate. Then our installers do the work, with a lead installer running your job.
Before anything goes on top, I check the old insulation for wet spots, dust and droppings, because new fill over a bad layer just hides the problem for a while.
Spray foam seals and insulates in one pass, but it costs more. If your ducts don't run through the attic, sealing the gaps and adding loose fill is usually the better buy.
Foam seals air as it fills, which helps in the room over the garage or an attic full of ducts. You'll know your re-entry time, when you can come back in, before we start.
We measure how many inches are already up there, check for soaked or dirty spots, and add depth evenly out to the edges, where attics usually run thin.
Blown-in is loose fill blown through a hose, and it's the usual way to top up an attic. We keep it off the eave vents so the attic can still breathe.
When the whole house feels drafty or one bedroom won't cool down, we look at the attic, walls and floors together and fix the weak spot first.
If the old insulation is soaked, flattened or full of droppings, we vacuum it out and clean up before anything new goes in, so the problem doesn't stay behind.
Cold floors usually trace back to the crawl space. We insulate under the floor and fasten the material snug to the subfloor so it stays in place.
Older walls are often empty or half full. We fill them through small holes that we patch afterward, so you get warmer rooms without opening up the drywall.
Air sealing means closing the gaps that let outside air in. Around the house we work the door to the garage, outlets on outside walls and pipes under sinks.
When a house has a basement or a below-grade room, we insulate the walls with material that handles damp concrete instead of soaking it up.
Closed-cell foam is dense foam that blocks moisture as well as air. We use it where water is a worry, like rim joists or under a floor that stays damp.
Open-cell foam is softer and fills big cavities, which suits rooflines and walls where you want quiet and sealing without paying for the denser foam.
For landlords and small building owners, we insulate rentals, shops and offices, and we plan the work around tenants so the place keeps running.
A plastic sheet over the dirt in your crawl space keeps ground moisture away from the floor framing. We lap and tape the seams so the ground stays covered.
Where a wall or floor needs a vapor barrier, we check which side it belongs on before it goes up, because on the wrong side it can trap damp in the framing.
Before new insulation goes down, we seal the attic floor around the hatch, wiring holes and plumbing stacks, so the fill isn't fighting a draft and dust stays out.
If you're adding insulation to a house that's already finished, we work from the attic, small wall holes or the crawl space so nothing big gets torn out.
Send the form and we'll reply within one business day to set a time. I come out, look things over and write up your estimate, with no pressure to book.
I'd rather price what I can see than guess over the phone, so the estimate happens at your house and costs you nothing.
You get the estimate and a plain explanation of what I found, and then you decide. If the smaller fix is the right one, I'll tell you.
We're fully licensed and insured, and I'm glad to show you the paperwork when I come out, because you should check on whoever goes into your attic.
Here's what people in Home Gardens ask us most about permits, licenses and getting the family back into the house.
Riverside County does, because Home Gardens is unincorporated and doesn't have its own city building office. Permits here go through the county's Building and Safety department. The county's list of permitted work doesn't spell out insulation either way, so we check with the county on your job, and if a permit is needed, we file the application and meet the inspector.
Yes, unless the whole job comes in under $1,000. Under state law, someone without a contractor license can only take work under $1,000 in total that needs no building permit and uses no employees, and a bigger job can't be split into smaller contracts to stay under that line. The limit went up from $500 to $1,000, so older advice may be out of date.
For spray foam, yes, you'll be out of the house while it cures. The wait depends on the product, so I'll give you the re-entry time, when you, the kids and the pets can come back inside, at the estimate. For blown-in or air sealing work, most people stay home and just keep the hatch area clear.
Home Gardens is one of the places we work from our base in Corona. If your city isn't listed, call or send the form and ask, since these aren't the only places we go.
We answer until 11 PM on weekdays and 10 PM on weekends, so call (951) 393-1170 after work or send the form tonight.