Insulation contractor in Temescal Valley - attics sealed before they're filled
Premium Wildomar Spray Foam Insulation is an insulation contractor based in Wildomar, working in Temescal Valley on attics, walls and crawl spaces. We seal the gaps, pull out bad old insulation and add spray foam or blown-in where it's needed.

- Licensed and insured.
- Free in-person estimates.
- We respond within 1 business day.
Temescal Valley homes and what's in their attics
Temescal Valley runs along the 15 between Corona and Lake Elsinore. Most of the houses are in planned neighborhoods, and the shops and businesses sit closer to the freeway. A lot of the homes are newer two-story builds, some on hillside lots, and many have the furnace or the ductwork up in the attic.
That shapes the job, because when the ducts live in the attic, how we insulate around them decides how much of your cooled air actually reaches the rooms below.
Insulation services we do in Temescal Valley
Spray foam insulation
Spray foam is worth the extra cost when your ductwork runs through the attic, because sealing the roof deck brings those ducts inside the part of the house you cool.
Attic insulation
Most hot-upstairs calls we get here trace back to the attic. We measure what's up there and even out coverage that's settled or gone thin over the years.
Blown-in insulation
Blown-in is loose fill blown through a hose. It's the usual way to top up an attic that already has a few inches, once the gaps are sealed.
Home insulation
When several rooms feel off, not just one, we look at the attic, walls and floors together and tell you which one is doing the most harm.
Insulation removal
When old insulation has been wet or had animals living in it, we pull it out and clean the attic so the new layer starts on a clean surface.
Crawl space insulation
For homes here built over a crawl space instead of a slab, insulating under the floor helps with the cold floors you feel in the rooms above.
Wall insulation
Older homes and add-ons sometimes have empty or half-filled walls. We can fill those cavities without tearing the rooms down to the studs.
Air sealing services
Air sealing is closing the gaps around pipes, wires and can lights before insulating, so your new insulation isn't fighting a draft from day one.
Basement insulation
Basements are rare here, but where a house has one or a lower level dug into a slope, we insulate those walls so the space stays usable.
Closed-cell foam insulation
Closed-cell foam is dense foam that blocks moisture. We use it where water is a worry, like a crawl space or a wall set against the ground.
Open-cell foam insulation
Open-cell foam is softer and lighter. It fits well under a roof deck over living space, or in walls where you want less noise between rooms.
Commercial insulation
For shops, offices and business buildings near the freeway, I look over the space first and we plan the install around the hours you're open.
Crawl space vapor barrier
A heavy plastic sheet over the crawl space dirt keeps ground moisture from rising into the floor framing and the insulation tucked up under it.
Vapor barrier installation
In the right spot, a vapor barrier keeps moisture out of walls and ceilings. In the wrong spot it traps it, so we check placement first.
Attic air sealing
Before we add a single inch up there, we seal the hatch, the can lights and the holes where pipes and wires come through the ceiling.
Retrofit insulation
For an older house, or a room over the garage that was never insulated right, we add to what's there without turning it into a remodel.
Get a free on-site insulation estimate in Temescal Valley
Send the form and we'll get back to you within one business day to set up a visit. I come out myself, and the estimate is free with no pressure and no obligation to go ahead.
- Based in
- Wildomar, CA 92595
- Hours
- Mon–Fri: 6 AM–11 PM, Sat–Sun: 8 AM–9 PM
Who handles permits and licenses in Temescal Valley
Temescal Valley isn't inside any city's limits, so the County of Riverside sets the rules for work on your house, and permits come from the county's Building and Safety Department. Before we start, we check the permit step with the department for your address, and when one is needed we file it and keep you posted. The county doesn't issue business licenses, so the license to ask any contractor about is their California state contractor license. We're licensed and insured.
We come up the 15 from Wildomar for jobs here, the same as we do for Canyon Lake and the other cities around home. The price moves mostly with what I find, how big the space is, how easy it is to reach and whether old material has to come out first. The schedule turns on the county's review and on anything that has to be fixed before we cover it, and you get your own number from the estimate.
Why Temescal Valley homes end up needing insulation work
A lot of the homes here went up with the insulation the builder put in, and over the years it settles and packs down. The gaps around the hatch, the can lights and the pipes usually never got sealed, so air moves right through it. We measure how many inches you've actually got, seal those gaps, then top it up so the coverage is even from edge to edge.
The room over the garage is the one people call about most. It takes heat from the attic above and the garage below, so we work on the ceiling, the floor and the short walls around it together.
How a Temescal Valley insulation job runs
Here's how a job goes from your first call to the final walk-through, and the two times you'll want to be home for it.
Call or send the form
Call (951) 417-1017 or send the form with what you're noticing, like a hot upstairs, a drafty room or a high power bill. We set a time for me to come out.
I check the space myself
I go up into the attic, walls or crawl space and measure what's already there. Before I leave, you know what I'd do, what has to be fixed first and what I'd skip, so you're not guessing about cost.
We handle the permit step
Once you say go, we check with the county and file a permit if one's needed. When there is one, the start date waits on the county's review, and we keep you posted.
We seal, insulate and walk through
Our small crew does the install with me working alongside, and we seal the gaps before any insulation goes in. When we're done, we walk the finished space with you so you see exactly what went in.
Questions about insulation in Temescal Valley
Does a small roof repair in Temescal Valley need a county permit?
Small roof repairs are on the county's list of work that needs no building permit when they cover less than 25% of the roof, involve no framing work and happen no more than once in 12 months. That list is a county handout, so check the current version with Building and Safety before you count on it. It matters to us because we'd want a leak fixed before any insulation goes over it.
When does an insulation contractor in California need a state license?
The Contractors State License Board requires a license when a job's labor and materials total $1,000 or more, when it needs a building permit or when it uses any additional workers. Ask any contractor for their state license before you sign anything.
How much does attic insulation cost in Temescal Valley?
It depends on the size of your attic, how easy it is to get around in, how many inches are already up there and whether the old material has to come out first. Sealing a lot of gaps or fixing a leak first adds to the job, and spray foam costs more than loose fill. I'll give you your own price after I've been up there.
How long does attic insulation take, and do we have to leave the house?
How long the crew is up there depends on the attic's size and whether old material comes out first, and I give you the timing at the estimate. With blown-in, you can usually stay home. With spray foam, everyone, kids and pets included, stays out until the re-entry time, the point when it's safe to come back in, and we tell you that time before we spray.
What causes moisture in an attic after new insulation goes in?
Usually it's buried eave vents, the openings along the edge of the roof that let the attic breathe. When insulation covers them, damp air gets trapped and moisture starts showing up in the framing. We keep a clear path open at the eaves before we blow in a single inch.
Is spray foam or blown-in better for an attic in Temescal Valley?
For most attics, sealing the gaps and topping up the blown-in is the better buy. Foam costs more, but it seals air while it insulates, so it earns its price when your ductwork runs through the attic. I'll tell you which one makes sense for your house after I've looked.
Tell us about your Temescal Valley attic
Describe what you're noticing and ask about the permit step when you call or send the form, so I show up already knowing what to look for.




