Insulation contractor in Hollister, CA - attics sealed first, then insulated
Thermal Gilroy Spray Foam Insulation is an insulation contractor working in Hollister, CA. We seal attic gaps, clear out insulation that's past saving and add new insulation to attics, walls and crawl spaces, in that order.
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Hollister's mix of older and newer houses
We're based just up the road in Gilroy, and the houses we see in Hollister tend to fall into a few kinds. Closer to downtown there are older homes, some with an attic that's had a layer or two added over the years and a crawl space nobody's looked at in a long while. Out toward the edges of town it's mostly newer tract houses, where there's usually blown-in up there already, but it's often deep in the middle and thin over the outside walls.
So the first thing I ask about a Hollister house is how old it is, because that usually tells me whether we're looking at a simple top-up or a cleanout first. Older places almost always mean checking the crawl space and the old layers before anything new goes in.
Permits, licenses and planning a job in Hollister
If your job needs a permit, it comes from the City of Hollister, and the city won't issue a building permit until it has approved a plan for keeping the job's construction or demolition waste out of the landfill. That approval has to happen before any start date, so I settle whether you need a permit at the estimate, and if you do, we pull it and set up the inspections. Before you hire anyone, make sure they hold a state license from the Contractors State License Board, the board that licenses and regulates California contractors to protect homeowners.
Highway 25 makes Hollister an easy trip for us, and we do the same work over in Prunedale and Salinas. What moves your price is mostly what's already up there: how many inches, whether it's clean or has to come out, how many gaps need sealing and whether loose fill or foam fits your house. The schedule turns on the permit, if there is one, and on any removal that has to happen first, and you'll see your own figure and the order of work in the written plan I go over with you.
What do Hollister houses need most from insulation?
Most calls I get from Hollister are about a hot upstairs, the room over the garage or a power bill that jumps in summer, because the sun bakes the attic and whatever's up there isn't slowing that heat down. Usually it's a mix of gaps around lights, pipes and the hatch and insulation that's too thin in spots, so we fix both, in that order, rather than just pouring more on top.
Hollister also sits in an area rated "Very High" for termites, and that changes how I look at the wood before we cover it. Insulation laid over damaged framing just hides the problem, so I check the joists and rafters first, and if something needs a pest company before we start, I tell you and we plan around it.
- Call (669) 205-6284
- Mon–Fri: 6 AM–11 PM, Sat–Sun: 7 AM–11 PM
- Gilroy, CA 95020
Insulation work we do in Hollister
Home insulation
Older Hollister houses often run hot upstairs and cold underfoot at the same time, because the attic, walls and crawl space were each done at a different time, if at all. Our home insulation work starts with a look at all three, so we fix them in the right order instead of one piece at a time.
Attic insulation
In the newer tract homes we usually find the builder's blown-in, loose fill that went in through a hose, piled deep in the middle and thin over the outside walls, which is backward. We even it out, keep it thick at the edges and keep it off the eave vents so the attic can still breathe.
Attic air sealing
Drafty Hollister houses usually leak around can lights, pipes and the attic hatch, and insulation laid over those gaps just fights the draft. We do the air sealing first, closing those gaps, so the insulation goes back over a tight ceiling.
Insulation removal
In some of the older homes we find attic insulation that's been soaked by an old roof leak or fouled by rodents, and new material on top of it keeps the problem in the house. We bag the old stuff out, clean up and check the framing before anything new goes in.
Crawl space insulation
Cold floors in a raised Hollister house usually trace back to a crawl space with sagging or missing insulation under the floor. We check the wood and the ground under there first, then fit insulation between the joists so it stays put.
Spray foam insulation
When the ductwork runs through a hot Hollister attic, sealing the roofline with spray foam can make more sense than topping up the attic floor. Foam costs more, but it seals air while it insulates, and I'll tell you at the estimate whether your attic is one where it's worth it.
How it goes when you call us about a Hollister job
Call or send the form
You call (669) 205-6284 and I answer, or I get back to you to set a time. I'll ask a few questions first, like how old the house is and which rooms bother you.
I look at the house
I come out to Hollister myself and look at the attic, walls or crawl space, and it helps if you're home to show me the trouble spots. I note anything that needs fixing first and walk you through a written plan, so you know the cost and whether a permit is needed before anything starts.
Our installers work in order
If there's a permit, the city has to approve the waste plan before it issues it, so the start date follows that approval. Then our installers clear, seal and insulate in that order, and I check in while they work.
We walk the finished job
Before we pack up, I go over the finished job with you, up in the attic if you want to see it. You'll know what went in where, and if a city inspection is part of the job, we've already set it up.
Get a written insulation plan for your Hollister home
Send the form and we'll reply within 1 business day to set up a free on-site estimate at your Hollister house. I come out myself, look at the attic, walls or crawl space and walk you through a written plan, with no pressure to book.
- Licensed and insured.
- Phone
- (669) 205-6284
- Location
- Gilroy, CA 95020
- Hours
- Mon–Fri: 6 AM–11 PM, Sat–Sun: 7 AM–11 PM
Questions about insulation in Hollister
What does the City of Hollister need before it issues a building permit?
The city has to approve a solid waste diversion plan before it issues a building or demolition permit. The permit holder then has to keep a required share of the job's construction or demolition waste out of the landfill. If your insulation job needs a permit, we pull it and set up the inspections, and I'll go over it with you at the estimate.
What happens if insulation work starts in Hollister before the permit is issued?
If work starts before a required permit is obtained, the city charges double its normal fee for the permits the job then needs. That's why I settle the permit question at the estimate, before anyone's on the schedule. If your job needs one, our installers don't start until it's in hand.
How much does insulation cost for a house in Hollister?
Your price comes from your own attic or crawl space, so the real number is in the written plan after I've looked. The biggest swings are whether old insulation has to come out first, how many gaps need sealing, how much is already up there and whether loose fill or spray foam is the right call. Sealing and topping up loose fill usually costs less than foam, unless your ducts run through the attic and the roofline is worth sealing.
How much can a contractor ask for up front on a home improvement job in California?
The state licensing board says a down payment can be no more than $1,000 or 10 percent of the total contract price, whichever is less. Every other payment has to be listed in the contract and tied to work completed or materials delivered. The board says these rules apply to all home improvement projects.
How do I tell if my Hollister attic needs new insulation or just a top-up?
If what's up there is clean, dry and just thin, a top-up after sealing the gaps usually does the job. If it's flattened, stained or dirty, it likely has to come out first. At the estimate I measure how many inches are already there and check the edges over the outside walls, since that's where it's usually thinnest.
How long do we have to stay out of the house after spray foam insulation in Hollister?
After spray foam you're out of the house for a set re-entry time, which is how long before you can safely come back in, and I give you that number in writing before we schedule so you can plan for the kids and pets. With blown-in in the attic, most families stay home while we work. If being out of the house isn't workable for you, that's part of how we'd choose between foam and loose fill.
Tell us about your Hollister house
Call (669) 205-6284 or send the form, and tell me which rooms run hot or cold so I know where to look first when I come out.
Request an estimateCall (669) 205-6284