Crawl space insulation in Vacaville, CA - warmer floors over a crawl space that stays dry
Cold floors and drafts coming up from under the house? We find the right fix first, then insulate so the floors feel warmer.
Should you insulate under the floor or close up the crawl space?
Crawl space insulation in Vacaville, CA either insulates the floor over your crawl space or closes up and insulates the crawl space itself, so the rooms above stop losing heat through the floor and feel warmer underfoot.
Most calls start with cold floors in winter, a hallway that feels drafty from below, or old insulation hanging down under the house. I own J&S Vacaville Insulation Services, and I get under your house myself to see which of those you've got, because fixing a few sagging batts and fixing a damp crawl space aren't the same job.
The price turns on how big the crawl space is, whether we insulate the floor or close up the whole space, how much old material has to come out, and whether there's mold or moisture to deal with first. The schedule turns on those same things, plus a permit if your job needs one, and my written estimate gives you your own number. We're based in Vacaville and work across the cities around it.
- Floor insulation can be precut batts, spray foam or a mix of the two, depending on the framing.
- Old insulation that's soggy or full of droppings comes out before anything new goes in.
- Rim joists, the boards around the edge of the floor framing, get sealed and insulated too.
What happens when you call about crawl space insulation in Vacaville?
I handle the first visit and the last look myself, and our installers do the work in between. Here's how a crawl space job runs from your first call to the final walk-through.
Call us or send the form
Call (707) 452-3285 or use the form, and we'll set a time for me to come out. We pick up seven days a week, 7 AM to 10 PM.
I look under your house
I get into the crawl space myself, and before I leave I tell you what I'd do first and why, even when that's the smaller job. Then you get the estimate in writing, with the work and the price spelled out so you can compare it or sit on it.
Our installers do the work
They clear out anything that has to go, then seal and insulate in that order, because insulation over open gaps just has air running past it. They work from below, so the job stays under the house and out of your rooms.
We look it over together
When the installers finish, I come back and check the work with you before we call it done. Satisfaction guaranteed.
What insulation under a floor looks like
These photos show the kind of work that happens in a crawl space, from batts fitted between joists to foam along the rim. They show the trade in general, not a particular house of ours.
A worker in protective coveralls sprays loose white insulation through a hose across an attic floor beneath exposed rafters.
An unfinished room has pale spray foam insulation between exposed wooden studs and across the ceiling.
A kneeling worker sprays pink blown-in insulation through a hose across an unfinished attic floor.
Exposed attic rafters and walls are coated with pale foam insulation, with ducts and framing visible.
A worker in protective coveralls vacuums loose attic insulation through a hose among exposed wooden rafters.
Basement walls have thick fiberglass batts fitted between wooden studs beneath exposed ceiling joists and a metal duct.
Get a written crawl space estimate from the owner
Send the form and we'll reply within one business day to set a time for my free visit, with no obligation. Note the crawl space's rough size and any furnace, water heater or mold you've seen there.
(707) 452-3285Questions Vacaville homeowners ask about crawl space insulation
These are the questions I hear most when I'm under a house in Vacaville. If yours isn't here, ask me at the estimate and I'll answer it there.
Should I insulate the floor or the crawl space walls?
Sealing and insulating the crawl space walls is the stronger choice in most houses, though in some homes the floor above works better as the line between the heated house and the unheated space. Studies found that closed-up crawl spaces with wall insulation beat vented ones with floor insulation on moisture, pests, warm floors and energy use. Which fits yours depends on what's down there, and I'll show you at the estimate.
Can I just close my crawl space vents to keep the cold out?
No, closing the vents by themselves can trap moisture under the house, and if a furnace or water heater down there vents on its own without a fan, it can create a deadly situation. Turning a vented crawl space into a sealed, dry one takes a lot more than blocking the vents, so call before you cover anything.
How much does crawl space insulation cost in Vacaville?
Insulating a crawl space usually costs about $3 to $6 per square foot across the US, which is a national figure for the work, not our price. The size of the space and whether you insulate the floor or close up the whole thing move it most, and my written estimate gives you your own number.
Who is licensed to install insulation in California?
In California, insulation work falls under the state contractors board's C-2 Insulation and Acoustical classification, which covers installing any insulation for heat or sound control. We're licensed and insured, and it's worth asking any contractor you're comparing which license they hold.
How do I deal with mold in my crawl space before insulating?
Have it looked at first, because one crawl space guide says any surface mold needs an inspection by a certified mold remediation expert, who sets the cleanup plan before work goes ahead. As I said above, we don't insulate over it, so if I see it at the estimate I'll point it out and we'll plan around the cleanup.
How long do we have to stay out of the house after crawl space insulation?
With batts, usually not at all, because the crew works under the house and doesn't need your rooms. Spray foam is different, since it comes with a re-entry time, a wait before people and pets go back inside, and I'll tell you how long that is for your job before we schedule.