Truetemp Corona Spray Foam InsulationTruetemp Corona Spray Foam Insulation

Local Insulation Contractor in Corona CA - Comfortable Rooms Upstairs and Down

Truetemp Corona Spray Foam Insulation handles attic insulation and spray foam for homes in Corona and the cities around it, like Riverside and Norco. We also seal the gaps behind a hot upstairs and pull out old, dirty insulation.

A tall unfinished room has white spray foam coating the roof panels and pale batt insulation filling the wall framing.
  • Fully licensed and insured.
  • Free quotes on site.
  • Replies within 1 business day.

Insulation contractor services in Corona, CA

Truetemp Corona Spray Foam Insulation is an insulation contractor in Corona, CA, and most calls start with a bedroom that won't cool down or a floor that stays cold. We offer 16 services, from topping up an attic to sealing a crawl space, so the fix can fit the problem. Price mostly comes down to how much area we're covering, whether foam or loose fill suits the job, and whether old material has to come out first. The schedule turns on those same things, plus how easy the attic or crawl space is to get into. I'll come out and write you a free estimate with your own figure.

A worker in protective coveralls sprays foam insulation onto the underside of a wooden roof, filling the spaces between rafters.

Spray foam insulation

Foam that insulates and seals air in one pass. It costs more than loose fill, so we usually suggest it when your ductwork runs through the attic.

Pink batt insulation fills the sloped roof framing of an attic around a rectangular ceiling hatch.

Attic insulation

We check how many inches are already up there, seal the gaps first, then add enough to cover the edges as well as the middle, where coverage usually runs thin.

A worker uses a blue hose to blow loose white insulation into an attic between wooden joists.

Blown-in insulation

Blown-in insulation is loose fill blown through a hose, so it settles into corners and around framing. It's often the simpler, cheaper way to top up an attic that's running thin.

A worker wearing a mask seals gaps in wooden attic framing with foam from a handheld applicator.

Home insulation

For the whole house rather than one spot. We look at the attic, walls and crawl space together, because a hot room over the garage often has more than one cause.

A worker in protective gear vacuums loose attic insulation through a black hose.

Insulation removal

When old insulation is soaked, flattened or full of droppings, new material on top just buries the problem. We bag it out and clean up before anything new goes in.

Crawl space with a white floor vapor barrier, brick support piers, and silver and black HVAC ducts beneath wooden joists.

Crawl space insulation

For cold floors over a crawl space. We check for moisture down there before we insulate, since wet insulation under the floor does more harm than good.

Open wall framing and roof rafters are covered with thick white spray foam insulation, with ducts and pipes below.

Wall insulation

Some walls, especially in older houses, have little or nothing inside them. We can usually fill the cavities through small holes and patch them, rather than opening up whole walls.

A worker in protective coveralls and a respirator sprays foam insulation along the upper edge of a plastic-lined crawl space.

Air sealing services

Air sealing means closing the gaps that let attic air slip into your rooms. It's the step most often skipped, and without it the insulation spends its time fighting a draft.

Pink fiberglass batts fill the ceiling joists above a concrete basement floor, with ductwork and support posts nearby.

Basement insulation

For basement walls and the rim joist, the band of framing on top of the foundation where a lot of air sneaks in. We pick materials that can handle a damp wall.

A spray foam gun applies thick white closed-cell foam between wooden wall studs.

Closed-cell foam insulation

Closed-cell foam is dense foam that also blocks moisture. It suits crawl spaces, rim joists and tight spots where you need a lot of insulation in a thin layer.

A worker in protective gear sprays green open-cell foam between exposed roof rafters.

Open-cell foam insulation

A lighter, softer foam that fills odd-shaped cavities and seals air for less than closed-cell. It works well on an attic roofline when the ductwork lives up there.

Beige insulation panels fill the underside of a commercial roof’s black steel framework.

Commercial insulation

For landlords and small building owners with a unit that won't stay cool or a space that costs too much to run. Same approach as a house, find the cause and fix that.

A crawl space has a white vapor barrier covering the floor and walls, with ducts and pipes overhead.

Crawl space vapor barrier

A heavy plastic sheet laid over the dirt floor of a crawl space with the seams sealed, so ground moisture stays out of the framing and the insulation above it.

White vapor barrier sheeting covers a crawl space floor and walls beneath exposed wooden joists.

Vapor barrier installation

We add a vapor barrier where moisture would otherwise soak into walls, floors or insulation, and we'll tell you plainly when your house doesn't need one.

A worker in protective gear sprays foam insulation along the rafters of an unfinished attic.

Attic air sealing

Before any new insulation goes in, we seal around can lights, pipes, wires and the attic hatch, so the new layer isn't working against air coming up from below.

Fiberglass insulation fills the sloped rafters around a skylight in an unfinished attic.

Retrofit insulation

For a house that's already finished and lived in. We add insulation to the attic, walls or floors you already have, with as little tearing out as the job allows.

How we size up an insulation job

I spent years fixing appliances, and the part I liked was working out why something wasn't working. Customers kept asking why one bedroom stayed warm no matter what the AC did, so I learned insulation on a crew and started this business in 2020. There's more about how we got here.

That habit stuck. I'd rather spend extra time with a flashlight in your attic than guess, and I'll explain what each clue means so you could tell the next person who works on your house. We're fully licensed and insured. If you want me to take a look, call (951) 393-1170.

  • We find the cause first

    We work out why your house runs hot or drafty before we suggest anything, so your money goes to the fix that matches the real problem, not the easiest one to sell.

  • The owner comes to look

    I come out to see your house myself, so the person sizing up the job is the one responsible for how it turns out.

  • We'll say when less will do

    If a cheaper material or a do-it-yourself fix will solve it, we'll tell you straight, even when that means less work for us.

What happens after you call about insulation

Here's how a job goes, from your first call to the walkthrough once the insulation is in.

  1. Call or send a note

    Call (951) 393-1170 or use the form, and we'll get back to you within one business day to set up a time for me to come out.

  2. I look and write it up

    I go through the attic, crawl space or walls with you and explain what I'm seeing. Then I write up a free estimate, with no obligation to book.

  3. Our installers do the work

    If you go ahead, our installers do the job with a lead installer running it. When they're done, I walk through it with you so you can see what changed.

Get a free on-site insulation estimate

Send the form and we'll reply within one business day to set up a visit. I'll look at the house and write up a free estimate, with no pressure to book.

  • Tell us what you're noticing

    A hot upstairs, cold floors, a power bill that jumped. Whatever made you look us up is the best clue we have, so put it in the note.

  • Permits checked for each job

    We check with the city or county office that covers your house before the work starts. If a permit is needed, we handle the application and meet the inspector.

  • Phone or form, your pick

    Call (951) 393-1170 if you'd rather talk it through, or find our email and hours on the contact page. We answer seven days a week, early morning into the evening.

(951) 393-1170

Questions about insulation work in Corona

These are the questions people ask first about insulation in Corona, from cost and timing to permits and licenses.

How much does insulation cost in Corona, CA?

It depends on how much area we're covering, which material fits and whether old insulation has to come out first. Foam costs more than loose fill, and sealing the gaps and topping up is often the cheaper fix that works. I'll come out, look, and write up a free estimate with your own figure.

How long will the insulation crew be in my attic?

That depends on the size of the attic, how much is already up there and whether old material has to be removed first. Removal and a tight attic hatch add the most time. Once I've been up there, I can tell you what the job involves and what will take longest.

Do we have to leave the house during spray foam insulation?

With spray foam, usually yes for a while, because the foam gives off fumes as it cures. The foam maker sets the re-entry time, when you, the kids and the pets can come back in, and we go over it with you before the day. Blown-in loose fill usually doesn't need you out of the house.

Do I need a permit for insulation work in Corona?

It depends on the job, so we check with the city or county office before we start. In Corona, building permits go through the city's Planning & Development department, and its permit line is 951-736-2250. If a permit is needed, we handle the application and meet the inspector.

Does an insulation contractor need a California state license?

In most cases, yes. The Contractors State License Board requires a license when a job needs a building permit, uses hired workers, or comes to $1,000 or more in labor and materials, which covers nearly any real insulation job. We're fully licensed and insured.

Does a contractor from outside Corona need a Corona business license?

Yes. The City of Corona requires a business license for every business working in the city, including ones based somewhere else, and it's renewed each year. It's a fair question to ask any contractor before they start on your house.

Find out why that room runs hot

Call (951) 393-1170 or send a note about your house, and I'll come look before anyone suggests a fix.

(951) 393-1170Request an estimate