Mon–Fri: 6 AM–11 PM, Sat–Sun: 7 AM–11 PM(951) 417-1035
L&T French Valley Spray Foam InsulationL&T French Valley Spray Foam Insulation

Insulation contractor in Murrieta, CA - even comfort upstairs and down

L&T French Valley Spray Foam Insulation is an insulation contractor working across Murrieta, sealing attic gaps and adding spray foam or blown-in insulation so the hot upstairs rooms and drafty corners of your house settle down.

An open ceiling hatch reveals reflective insulation lining an attic, with a folding ladder below.
Thick cream-colored spray foam fills the spaces between exposed wooden wall studs.

What we find in Murrieta houses

I-215 and I-15 split Murrieta into East, Central and West Murrieta, and a week of jobs here can take our crew to all three. Most of what we see is neighborhoods of two-story houses with the attic over the bedrooms and a bonus room over the garage, plus some shops, offices and rentals on the commercial side. The houses look a lot like the ones we insulate over in Menifee and Wildomar, and most of the calls start the same way, with a bedroom that won't cool off or a room over the garage nobody wants to use.

A lot of these houses already have blown-in insulation, so the real question is how many inches are left, whether it's packed down or pushed back from the edges, and what was never sealed around the lights, pipes and hatch. That decides whether your attic needs a top-up, a cleanout or air sealing first, and it's why I look before I quote.

Insulation work we do in Murrieta

Working in Murrieta: permits, licenses and what sets the price

Murrieta runs its own building office, so permit questions for your house go to the city's Building and Safety Division, and the city asks that you confirm the property is actually inside Murrieta before applying. I check that for every address, and when a permit is part of the job, we handle it with the city or ask them first if it isn't clear, which means the city's review can set our start date. The city also requires a business license to work inside its limits and wants the contractor's state license and city business license on every permit application, so it's fair to ask anyone you're considering for both. We're fully licensed and insured.

On price, the big movers are how much attic or wall there is to cover, how easy it is to reach, whether old insulation has to come out first and how many gaps need sealing before anything new goes in. The schedule turns on those same things plus any permit, and your own figure comes from the estimate, where I look over the space and put what I'd do in writing. We work the same way next door in Temecula and back home in French Valley.

  • Clear a path to the attic hatch, often in a hallway ceiling, a closet or the garage, because the crew runs hoses and carries bags through that route.
  • When the room over the garage runs hot or cold, the fix is usually in its floor and the short knee walls along its sides, not just the main attic.
  • If there's a roof leak or signs of rodents up there, I'll tell you to fix that first, because new insulation over a leak or droppings won't help you.
  • If you have a crawl space, we look there too, since cold floors and a damp smell usually start down below.
  • We keep the eave vents open and carry the depth all the way out to the edges, because a buried vent traps moisture and thin edges leave the corners of the room uncomfortable.

A free look at your Murrieta attic, in writing

Tell us which rooms bother you and give us your Murrieta address, and we'll get back to you within one business day to set a time. The estimate is free, it happens at your property and there's no obligation to book. I come out myself, look over the attic or crawl space, explain what I found and put what I'd do in writing.

(951) 417-1035

Murrieta insulation questions we hear

Do I need a permit to add insulation in Murrieta?

The city's list doesn't settle it for insulation, so we check with the city's building office for your address before work starts. Murrieta's list of work that needs no permit names jobs like painting, tiling, carpet and cabinets, and it was written before the building codes the city now applies to new submittals. If a permit is part of your job, we handle it with the city.

How long does it take to get a building permit in Murrieta?

The city currently lists permit processing at 15 business days, and that's the city's review time, not the work itself. When your job needs a permit, that review comes before our start date, so we get the application moving once you've decided to go ahead.

How much does it cost to insulate an attic in Murrieta?

Your price comes down to the attic's size, the inches already up there and what has to happen before new insulation goes in, and I put it in writing after I've looked. Removing soaked or dirty insulation and sealing a lot of open gaps add to the job, and foam costs more than blown-in. Foam seals air while it insulates, but sealing the gaps and topping up loose fill usually wins, unless your ductwork runs through the attic.

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

Yes, for spray foam you, your kids and your pets stay out until the re-entry time, the wait the foam maker sets before people can safely come back inside. Blown-in insulation is different, and most families stay home and just keep kids and pets away from the work area. I'll tell you the window for the product we're using before the crew day, so you can plan where everyone goes.

Service areas

We're based in French Valley and work across the cities around it. These are the ones with their own page, not the only places we go, so if yours isn't listed, call and ask.

Have me look at your attic first

We answer (951) 417-1035 from early morning until 11 PM, weekends included, so you can call after work or send the form with your address and the rooms that bother you.

If a room in your Murrieta house never feels right, send us a note and we'll talk it through.

Tell us about your project
(951) 417-1035Get an estimate