(209) 222-5441
TempGuard Modesto Spray Foam InsulationTempGuard Modesto Spray Foam Insulation

Spray foam insulation in Modesto CA - upstairs rooms that hold their temperature

Upstairs too hot, the room over the garage drafty, the power bill climbing? We seal and insulate in one pass so the rooms hold steady.

White spray foam covers the sloped roof between exposed wooden rafters in an unfinished building.
  • Licensed and insured.
  • Free on-site estimates.
  • We respond within 1 business day.

What spray foam does for a Modesto house

Spray foam insulation is liquid foam we spray onto the underside of your roof, into open walls or around the room over the garage. It expands to fill the gaps and slows both heat and noise. For a Modesto house, it's the way to get air sealing, which means closing the leaks that let outside air in, and insulation done in a single pass.

The price moves with the size of the space, how thick the foam goes on and which foam you pick, since dense closed-cell foam costs more than the lighter open-cell kind. A tight attic, old insulation that has to come out first, or a wet spot that needs fixing before we cover it all add to the job. The schedule turns less on the spraying than on getting everyone out of the house until the foam cures and airs out, and the estimate is where you get the figure for your house.

We're licensed and insured. If you're not sure your job needs a permit, the city's Building Safety Division issues them in Modesto. When a job needs one, we pull it with the city or county office that has your address and book the inspection before anything gets covered.

  • I look before I quote

    I come out myself, get up in the attic and write the estimate. If foam isn't worth the money for your house, I'll tell you that and point you to what is.

  • Fixes come before foam

    Wet spots, old wiring and anything in the house that burns fuel get checked first. Foam makes a house tighter and buries whatever is under it, so those problems get handled before we spray.

  • I check the finished work

    I write the estimate, so I'm also the one who goes over the finished job with you. Our installers do the spraying, and we've been doing this work since 2013.

How we decide on foam and do the job

Every job starts with me in your attic or crawl space with a flashlight. It's hotter up there than my old office, but nobody holds meetings in an attic. I check how many inches of insulation are already there, whether the old material is soaked or full of droppings, how the wiring looks and what in the house burns gas. Foam tightens the house, and the furnace and water heater still need their air. Spraying foam over a wet spot or bad wiring just hides the problem, so we fix those first.

Foam isn't the answer for every house. It costs more than loose fill because it seals air while it insulates, and it earns that price when your ductwork runs through the attic and spraying the roof deck brings those ducts inside the insulated space. When the ducts are somewhere else, sealing the gaps and topping up with blown-in insulation usually does the job for less, and I'll say so. That's ordinary attic insulation work, and we do a lot of it.

Once we agree foam is right, we work out with you where everyone in the house, pets included, will stay while we spray and until the foam has cured and the house has aired out. We settle that before we book a date, not the morning of the job.

Where spray foam fits best

The room over the garage

That room runs hot and has cold floors because it sits over the garage with outside air on several sides. Foam fills the odd framing and seals the gaps that let garage air in.

Walls open during a remodel

Foam goes into walls most easily while the drywall is off. We fit the spraying in before the walls close, so any inspection happens while the foam is still in plain view.

Drafty older houses

Older houses tend to leak air around pipes, wires and the attic hatch. Foam seals those gaps as it insulates, so the house stops pulling in outside air every time the system runs.

Rentals between tenants

An empty rental is the simplest place to spray because nobody has to find somewhere else to stay. Landlords often book foam between tenants for that reason, and we plan around the turnover date.

Get a spray foam estimate at your house

Send the form and we'll get back to you within one business day to set a time. I'll come out, look at the space and write the estimate myself. It's free, and there's no obligation.

  • Rough square footage

    A rough number for the attic, the walls or the room you're thinking about is enough. It helps us plan the visit and gives you a sense of scale before I come out.

  • Which space you want done

    Tell us whether it's the attic, the room over the garage, the walls or a foundation. The space decides which foam fits and what I check first when I get there.

  • Health concerns in the house

    If someone at home has asthma, allergies or a skin condition, mention it on the form. We'll get you the product sheet early so you can read it before you decide anything.

(209) 222-5441

Spray foam questions we hear before booking

These are the questions Modesto homeowners ask about cost, foam type and time out of the house before they decide on spray foam.

How much does spray foam insulation cost in Modesto?

Spray foam in Modesto usually runs about $1,800 to $4,600 per 1,000 square feet at 3 inches thick. That's the going rate in the area, not our price. Where your job lands depends on which foam you choose, how thick it goes on and how hard the space is to get into, and I'll give you the number for your house at the estimate.

Should I get open-cell or closed-cell spray foam?

Choose closed-cell if heat is the main problem and open-cell if noise is. Closed-cell foam is about twice as energy efficient per inch, which is part of why it costs more. Open-cell foam is a much better sound barrier. Most people are weighing heat against noise and budget, and I'll tell you which way I'd go for your space.

How long do we have to stay out of the house after spray foam?

You stay out until the foam has cured and the house has been aired out and cleaned. Some makers put that at about 24 hours for the high-pressure foam professional crews use, but the time varies by product, so we go by the instructions for your foam. The heating and cooling system in the work area is shut down and its vents sealed while we spray, and it's turned back on after the foam cures and the area is aired out.

Can spray foam go on foundation walls or below ground?

It can, but usually not open-cell. Open-cell foam is rated not acceptable for foundations and below-ground spaces in many cases. It stops air but still lets water vapor pass through. For those walls we look at closed-cell, the denser foam that blocks moisture, and we decide on the foam together before anything is booked.

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

It may not be the right choice. People with asthma, respiratory allergies or skin conditions should read the product information carefully and may want to consider other options. Ask us for the product sheet early so you have time to read it. Sealing the gaps and adding loose fill is one of those other options.

Other ways to insulate the attic

Call about the room that won't cool down

We're open seven days a week from 7 AM to 11 PM, so you can call (209) 222-5441 after work or send the form tonight.

(209) 222-5441Request an estimate