Insulation contractor in Murrieta, CA - sealed attics and cooler rooms upstairs
Premium Wildomar Spray Foam Insulation is an insulation contractor in Murrieta, CA. We seal and insulate attics, walls and crawl spaces for Murrieta homeowners, top up thin blown-in, pull out old insulation and spray foam where it pays.
- Licensed and insured.
- Free in-person estimates.
- We respond within 1 business day.
Murrieta homes east, west and between the freeways
Murrieta starts just south of our base in Wildomar, about as close as Lake Elsinore is on the north side, so it's a short drive for the crew. People here usually say East, Central or West Murrieta, since I-215 and I-15 split the city that way, and we work in all three.
Many of the homes we're in here are two-story tract houses with a bonus room over the garage, mixed with older single-story houses and some offices and shops. Those two-story attics tend to be low at the eaves and crowded with ductwork, and that's where coverage ends up thin and where we spend most of our time on the job.
Insulation services we offer in Murrieta
Spray foam insulation
Spray foam seals air while it insulates, so it suits spots loose fill can't stay in, like a sloped bonus-room ceiling or the walls of a garage conversion.
Attic insulation
A hot upstairs usually traces back to the attic, where old fill has settled thin. We seal first, then bring the depth up evenly to the eaves.
Blown-in insulation
Blown-in insulation is loose fill we send through a hose from the truck, and it's the usual way to top up a tract-home attic without opening a ceiling.
Home insulation
When the whole house feels drafty, we look at the attic, walls and floors together, so the money goes where the house is actually leaking.
Insulation removal
If the old fill is soaked, flattened or full of droppings, we vacuum it out first, because new insulation laid over it just hides the problem.
Crawl space insulation
Cold floors in an older single-story house usually mean a bare crawl space underneath. We insulate between the floor joists and keep it off the dirt.
Wall insulation
On older Murrieta homes, exterior walls are sometimes empty or half-filled. We check through a small opening first, then fill the cavities and patch the holes.
Air sealing services
Air sealing, closing the gaps around can lights, pipes and the attic hatch, comes before any insulation, so the new layer isn't fighting a draft.
Basement insulation
Basements are rare here, but where a house has one or a lower level dug into a slope, we insulate the walls that sit against the dirt.
Closed-cell foam insulation
Closed-cell foam is the dense kind that blocks moisture, so it's our pick for a damp crawl space or a wall that gets wet.
Open-cell foam insulation
Open-cell foam is the lighter, softer foam, good for filling odd framing in walls and rooflines where moisture isn't a concern. It costs less than closed-cell.
Commercial insulation
We insulate offices, shops and metal buildings around Murrieta, and I walk the space with the owner or manager before we plan anything.
Crawl space vapor barrier
A heavy plastic sheet over the crawl space dirt keeps ground moisture from soaking the floor insulation above it. We lap and seal the seams so it stays put.
Vapor barrier installation
We put a vapor barrier only where a wall or ceiling needs one, and on the right side, because the wrong side traps moisture in the framing.
Attic air sealing
Before topping up a Murrieta attic, we foam the gaps around wiring, plumbing stacks and the hatch, and keep the eave vents clear so the attic still breathes.
Retrofit insulation
Retrofit work adds insulation to a lived-in Murrieta house without gutting it, working from the attic, the crawl space or small holes in the walls.
Get a free insulation estimate for your Murrieta home
Send the form and we'll get back to you within one business day to set up a time to come out. The estimate is free and done on site, with no obligation to go ahead.
- Based in
- Wildomar, CA 92595
- Hours
- Mon–Fri: 6 AM–11 PM, Sat–Sun: 8 AM–9 PM
Working in Murrieta: permits, licenses and scheduling
Permits here go through the City of Murrieta's Building and Safety Division, and the city asks that you confirm a property is inside city limits before anyone applies, so that's the first thing we check for your address. When a permit is needed, the city's review comes before we can start. Murrieta also requires a city business license to work inside its limits, and the permit application has to list the contractor's state license and city business license with their expiration dates, so ask any contractor you're considering for both. We're licensed and insured, and when a permit is needed we file it and keep you posted.
Murrieta is a short run down I-15 from Wildomar, and with I-215 on the east side we reach every part of the city the same way we get down to Temecula. What moves the price here is what's already in the attic and whether it has to come out, and what moves the schedule is the permit and any repair that has to happen first, like a roof leak or a bad wire. You get your own figure from the estimate visit.
What we find in Murrieta attics and crawl spaces
In the two-story tract houses, the trouble usually sits in the same places, with blown-in that has settled to a few inches, thin coverage under and beside the room over the garage, and ductwork running through the attic. Sealing the gaps and topping up the loose fill is usually the right call, and it costs less. When the ductwork lives up there, I'll point you to spray foam, because it seals the air and insulates in one pass and pulls the ducts inside the insulated space.
The older single-story houses bring different calls, mostly cold floors and drafty rooms. Under those we often find sagging or soaked insulation in the crawl space, or droppings in the attic, and that has to come out before anything new goes in.
How an insulation job runs when you call us in Murrieta
Here's how it goes from your first call to the finished attic, and who you'll be dealing with at each step.
Call or send the form
Call (951) 417-1017 or send the form with your address and what's bothering you, and we set a time for me to come out. You don't need anything ready but a clear path to the attic hatch.
I look in the attic first
I come out myself, get into the attic, walls or crawl space, and check how many inches are up there and whether anything has to be fixed first. Before I leave you know what I'd do, what has to come first and what I'd skip, so you're not paying for work the house doesn't need.
We check the permit step
We check with the city for your address, and when a permit is needed we file it and keep you posted. The city currently puts permit processing at 15 business days, so that wait usually sets the start date.
We seal, insulate and walk it
Our small crew, with me working alongside, seals the gaps before any insulation goes in and keeps the eave vents clear. When we're done, we walk the finished space with you.
Questions about insulation in Murrieta
Do I need a permit to insulate my attic in Murrieta?
You may, so we check with the city for your address before we schedule anything. Murrieta requires a permit to alter or repair a building, and the city's list of work that needs no permit names things like painting, carpeting and fences, not insulation. That list was also written before the city's current codes, so the city has the up-to-date answer.
Which building code applies to insulation permits in Murrieta?
The 2025 California Building Codes, because the city applies them to every new permit submittal. If your job needs a permit, it gets reviewed under those codes, and we plan the work to them from the start.
How much does it cost to insulate an attic in Murrieta?
The price comes down to how many inches are already up there, whether the old insulation has to come out first, how much sealing the attic needs and whether we're blowing in loose fill or spraying foam. Foam costs more than topping up blown-in, and a two-story house with a bonus room usually has more gaps to seal than a single-story one. I give you your own figure at the estimate, after I've been in the attic.
Do we have to leave the house for spray foam insulation in Murrieta?
For spray foam, yes, so everyone, pets included, stays out while we spray and until the re-entry time, the point when it's safe to come back in, has passed. For blown-in you can usually stay home, since the work stays up in the attic. Either way, I tell you before the job day when you can be back inside, so you can plan the kids and pets around it.
How long does insulation take in a Murrieta house?
The install itself is usually the short part, and when a permit is needed, the city's review in the steps above is what usually sets the start date. Removing old insulation or a repair that has to happen first, like a roof leak or a bad wire, adds time before we insulate, and I'll tell you about those at the estimate.
What causes a hot room over the garage in Murrieta?
Usually it's thin or uneven insulation in the garage ceiling and the attic beside the room, plus air leaking through gaps nobody sealed. The knee walls, the short walls between the room and the attic, are often left light too, so we seal those gaps first and then bring the coverage up evenly, with foam where ductwork runs through.
Get your Murrieta attic looked at first
Call (951) 417-1017 or send the form with your address and what's going on, a hot room or a high power bill, so I know what to look for before I climb into the attic.